2011 Annual Report - Instituto de Telecomunicações
Transcrição
INSTITUTO DE TELECOMUNICAÇÕES ANNUAL REPORT 2011 Table of Contents 1. 2. INTRODUCTION ...................................................................................... 7 1.1 History ............................................................................................. 7 1.2 Management ..................................................................................... 8 1.3 Highlights of 2011 ............................................................................. 9 KEY IT INDICATORS ...............................................................................17 Human Resources .....................................................................................17 Projects ...................................................................................................21 Publications ..............................................................................................22 3. FINANCIAL OUTLINE ..............................................................................29 4. RESEARCH AREAS ..................................................................................31 4.1 Wireless Communications ..................................................................31 4.1.1 Area Coordinators ......................................................................31 4.1.2 Human Resources ......................................................................31 4.1.3 Summary of Research Achievements ............................................40 4.1.4 Running and Concluded Projects ..................................................52 4.1.5 Running and Concluded Theses ....................................................86 4.1.6 Publications ...............................................................................97 4.1.7 Other Achievements ................................................................. 113 4.1.8 Other Contributions .................................................................. 115 4.2 Optical Communications .................................................................. 118 4.2.1 Area Coordinators .................................................................... 118 4.2.2 Human Resources .................................................................... 118 4.2.3 Summary of Research Achievements .......................................... 123 4.2.4 Running and Concluded Projects ................................................ 129 4.2.5 Running and Concluded Theses .................................................. 144 4.2.6 Publications ............................................................................. 149 4.2.7 Other Achievements ................................................................. 160 4.3 Networks and Multimedia ................................................................ 161 4.3.1 Area Coordinators .................................................................... 161 4.3.2 Human Resources .................................................................... 161 4.3.3 Summary of Research Achievements .......................................... 175 4.3.4 Running and Concluded Projects ................................................ 182 iii 4.3.5 Running and Concluded Theses .................................................. 237 4.3.6 Publications ............................................................................. 251 4.3.7 Other Achievements ................................................................. 276 4.3.8 Other Contributions .................................................................. 277 4.4 Basic Sciences and Enabling Technologies ......................................... 282 4.4.1 Area Coordinators .................................................................... 282 4.4.2 Human Resources .................................................................... 282 4.4.3 Summary of Research Achievements .......................................... 288 4.4.4 Runing and Concluded Projects .................................................. 317 4.4.5 Running and Concluded Theses .................................................. 336 4.4.6 Publications ............................................................................. 344 4.4.7 Other Achievements ................................................................. 363 4.4.8 Other Contributions .................................................................. 364 iv List of Tables Table 1 - Foreseen and achieved scientific output in 2011 ..................................11 Table 2 – Number of active projects in 2011, according to funding source ...........21 Table 3 – Number of published works in 2011 ..................................................22 Table 4 – Total operational income in 2011 ......................................................29 Table 5 – List of major income sources during 2011 ..........................................30 Table 6 – Major costs in 2011 ........................................................................30 Table 7 – Main asset changes in 2011 .............................................................30 Table 8 – Overview of human resources in the Wireless Communication Area in 2011 ....................................................................................................31 Table 9 – Permanent collaborators working in the Wireless Communications Area in 2011 ....................................................................................................34 Table 10 – Non-permanent collaborators working in the Wireless Communications Area in 2011 .........................................................................................39 Table 11 – Number of active projects in the Wireless Communications Area in 2011 ...........................................................................................................52 Table 12 – List MSc Theses running in the Wireless Communications Area during 2011 ....................................................................................................91 Table 13 – List of PhD Theses running in the Wireless Communications Area during 2011 ....................................................................................................96 Table 14 - Overview of human resources in the Optical Communications Area in 2011 .................................................................................................. 118 Table 15 – Permanent Collaborators working in the Optical Communications Area in 2011 .................................................................................................. 119 Table 16 – Non-permanent Collaborators working in the Optical Communications Area in 2011 ....................................................................................... 122 Table 17 - Number of active projects in the Optical Communications Area in 2011 ......................................................................................................... 129 Table 18 - List of MSc Theses running in the Optical Communications Area during 2011 .................................................................................................. 145 Table 19 - List of PhD Theses running in the Optical Communications Area during 2011 .................................................................................................. 147 v Table 20 – Overview of human resources in Networks and Multimedia Area in 2011 ......................................................................................................... 161 Table 21 – Permanent Collaborators working in the Networks and Multimedia Area in 2011 ............................................................................................... 166 Table 22 – Non-permanent Collaborators working in the Neteworks and Multimedia Area in 2011 ....................................................................................... 174 Table 23 – Number of active projects in the Networks and Multimedia ............... 182 Table 24 - List of MSc. Theses running in the Networks and Multimedia Area During 2011 .................................................................................................. 244 Table 25 - List of PhD Theses running in the Networks and Multimedia Area During 2011 .................................................................................................. 250 Table 26 – Overview of the human resources in the Basic Sciences and Enabling Technologies Area in 2011 .................................................................... 282 Table 27 – Permanent Collaborators working in the Basic Sciences and Enabling Technologies Area in 2011 .................................................................... 285 Table 28 – Non-permanent Collaborators working in the Basic Sciences and Enabling Technologies Area in 2011 ....................................................... 287 Table 29 – Number of active projects running in the Basic Sciences and Enabling Technologies Area in 2011 .................................................................... 317 Table 30 – List of MSc Theses running in the Basic Sciences and Enabling Technologies Area during 2011 .............................................................. 340 Table 31 – List of PhD Theses running in the Basic Sciences and Enabling Technologies Area during 2011 .............................................................. 343 vi ANNUAL REPORT 2011 – KEY IT INDICATORS 1. INTRODUCTION 1.1 History Instituto de Telecomunicações (it) is a private, not-for-profit organisation, an association of eigth institutions with research and development in the field of Telecommunications: • Instituto Superior Técnico (IST); • Universidade de Aveiro (UA); • Universidade de Coimbra (UC); • Portugal Telecom Inovação, (PTIn); • Nokia Siemens Networks S.A; • Universidade da Beira Interior (UBI); • Universidade do Porto (UP); • Instituto Superior de Ciências do Trabalho e da Empresa (ISCTE-IUL). it is organised around three sites: • Aveiro, in the University Campus; • Coimbra, in Site II of the University of Coimbra; • Lisbon, in Instituto Superior Técnico. and four delegations: • Leiria, in the “Escola Superior de Tecnologia e Gestão” of the Leiria Polytechnic (IPL); • Covilhã, in the University of Beira Interior (UBI); • Porto, shared by the Faculty of Engineering (FEUP) and the Faculty of Sciences of the University of Porto (FCUP); • Lisboa, in (ISCTE-IUL). Setting up of it was the result of a 1.5 billion escudos (about 7.5 million Euros) grant from Programme CIENCIA, through three contracts signed in 1991. This investment enabled new infrastructures to be built and research laboratories to be equipped at each site. 7 ANNUAL REPORT 2011 – KEY IT INDICATORS Installation was concluded in Aveiro in 1993 and in Lisbon and Coimbra in 1994. Since 1993, it activities proceed regularly. it bylaws were first approved in 1992, modified in 1997 and modified again in 2003 and 2011. New site bylaws deriving from it bylaws were approved and implemented in 2011. Key developments in 2011 are highlighted ahead. Details are included in the sections dealing with each of the research areas. 1.2 Management it is managed by a Board of Directors, elected by the General Assembly, and by Site Management Boards, which include the site members of the Board of Directors. Site Management Boards enjoy ample freedom to deal with current affairs and usually meet weekly. The Board of Directors meets at least once a month. it scientific activities are overseen by the Scientific Board, which includes all it researchers holding a Ph.D. degree. The Scientific Board meets in Plenary or in Committees, both permanent and temporary. There are two permanent committees: the Science and Technology Committee and the Research Group Coordination Committee. it Work Plan and the Annual Report are discussed with the Advisory Committee, formed by three independent experts in the field of telecommunications (Dr. Roland Huber, Prof. Sir John O’Reilly and Prof. Martin Tomlinson) acting in a personal capacity, and together with the Accounts Report (after legal certification) are subsequently submitted to the General Assembly for approval. The General Assembly met formally twice in 2011. The first meeting was held on May 31st, in the Meeting Room of the Aveiro site, to discuss and approve the 2010 Annual Report and Accounts and some ammendments to it bylaws. The second meeting took place on December 13th, in the Meeting Room of the Aveiro site, to discuss and approve the Work Plan and Budget for 2011. The Research Group Coordination Committee also met twice during 2011. On the first meeting, held on March 29, at Lezíria Park Hotel (Vila Franca de Xira), the Draft Proposal of the 2011 Annual Report and the re-organization of the research 8 ANNUAL REPORT 2011 – KEY IT INDICATORS groups were discussed and received a favourable opinion. On the second meeting, held on December 12, in the meeting room of Hotel D. Luis (Coimbra), the Work Plan and Budget for 2012 and a proposal to create new research groups were discussed and received a favourable opinion. The external it image was discussed at length and the possibility of research groups having an independent web site (within a simple set of rules) was accepted. 1.3 Highlights of 2011 In spite of the economic and financial crisis 2011 was a pretty good year for it. Scientific output, exceeded expectations and constitutes a new record year: • 7 books; • 55 book chapters; • 249 papers in international refereed scientific journals; • 563 papers in refereed conferences, with published proceedings; • 16 patent requests. Fostering advanced education remained at a high level: • 35 PhD theses, submitted and approved; • 188 MSc theses, submitted and approved. even if it is certain that not all MSc theses submitted and approved are recorded. it researchers received the following IEEE distinctions • IEEE fellowship (the fourth); • Distinguish lecturer; • 2011 Best paper award of the Joint Communication Society and Information Society; • 2011 Best paper award of the Signal Processing Society; • Signal Processing Society Board of Governors (in the capacity of Member at Large). 9 ANNUAL REPORT 2011 – KEY IT INDICATORS FCT funding was almost normal and caused no major thumbling blocks: • 2 M€ from IT – Laboratório Associado contract 2010 was paid in January 2011; • 1.2 M€, corresponding to 40 % of the IT – Laboratório Associado contract 2011 was paid in two instalments (April and July); • 510 k€ in running and concluded projects; • 267 k€ in CIENCIA work contracts, related to 2010 expenses. The major payment in arrears (618 k€) corresponds to the CMU project. Since it has been underspending, in this contract FCT is in debt to only about 100 k€. Due to prior delays in the transfer of funds from FCT, the execution periods for the 2009 and 2010 were extended to the 30 th of July 2011 and the 31st of December 2011, respectively. The new funding rules applicable to the FCT contracts (including IT – Laboratório Associado) foresee a upfront payment of (at least) 15 % of the approved budget. The following payments will only be made after a minimum amount of 10 % of the budget is reported. This new payment technique implies a much stricter treasury control and may be damaging if FCT does not meet its promised one month payment delay. An interesting new point in FCT contracts is the return of the 20 % flat rate on indirect expenses. This simplification will certainly save a lot of work and bureaucracy. The number of scholarships decreased slightly with respect to 2010, with the exception of mobility fellowships, that is: • 211 Ph.D. scholarships; • 271 M.Sc. and B. Sc. Scholarships; • 13 Integration in R&D fellowships; • 2 Management of Science and Technology fellowships; • 14 mobility fellowships associated with the ongoing CMU-Portugal Program. 10 ANNUAL REPORT 2011 – KEY IT INDICATORS With the exception of the Ph.D. fellowships, that were funded by FCT, all other fellowships were funded by it. During 2011, 150 nationally funded and 29 internationally funded projects were active, as shown in section 2.2. It is particularly noteworthy the fact that on the 31st of December it was involved in 33 FP7 projects (running and selected for funding) in addition to other 5 projects, where there was involvement of some it researchers from the Lisbon site. To reflect it 2011 activity some tangible objectives were defined in the Work Programme and Budget. These objectives together with the achieved values are given in Table 1 Graduate and post-graduate Foreseen Achieved MSc Theses 170 187 PhD Theses 30 35 activities: Publications: Foreseen Achieved Books 8 Book Chapters 25 55 Papers in Journals 170 250 Papers in Conference Proceedings 400 561 Table 1 - Foreseen and achieved scientific output in 2011 Achieved scientific output exceeded our forecast, in all areas, and becames a new record except in the number of papers in conferences. It is worth noting that the number of concluded PhD exceeded our forecast which may mean that supervisors are improving their time required estimations. 11 ANNUAL REPORT 2011 – KEY IT INDICATORS it co-authored 16 patent applications in 2011. it received the following distinguished visitors: Pampilhosa da Serra, 10th of April Secretary of State for Science, Prof. Leonor Parreira, Lisbon,28 th of October. it hosted the following national and international events (referred by date): • Optical demonstration of the Deutsch-Jozsa algorithm with a single qubit, in Lisbon, 11th of January • Talk ''UWB Antenna Applications'', in Lisbon, 27th of January • Workshop on The Interface Between Mathematics, Science and Engineering, in Lisbon, 10th of March • Talk on Side Information Fusion for Multiview Distributed Video Coding, in Lisbon, 17th of March • The Connectivity Discovered by Routing Protocols: Why Networking Is Not Graph Theory, in Lisbon, 18th of March • IEEE Portugal APS/EDS/MTTS Joint Chapter Instituto de Telecomunicações, Instituto Superior Técnico, in Lisbon, 26th of April • EUROCON2011, in Lisbon, 27th of April • Forum FISTA (Forum of ISTA), in Lisbon, 3th of May • Seminar "Combining Negation" in Lisbon, 6th of May • SEMINAR - Taking Saratoga from Space-Based Ground Sensors to GroundBased Space Sensors, in Aveiro, 23th of May • Workshop ''The Growing Demands on Connectivity and Information Processing in Radio Astronomy from VLBI to the KKA'', in Aveiro, 24thn of May • Talk - Must and May Abstractions for Markov Decision Processes, in Lisbon, 27th of May • Talk entitled ''Human Motion: Tracking and recognition of actions, emotions and interactions'', in Oporto, 27th of May 12 ANNUAL REPORT 2011 – KEY IT INDICATORS • Seminar - Blind Compressed Sensing Over a Structured Union of Subspaces, in Lisbon, 2th of June • SEMINAR: Improving Primal and Dual Decompositions in Convex Optimization Problems: Application to Signal Processing and Communications, in Lisbon, 3th of June • Seminar - ''Generative model inversion and information geometry'', in Lisbon, 3th of June • Research Symposium, in Oporto, 9th of June • CST Workshop Series, 2011 LISBON, in Lisbon, 17th of June • Some History and Recent Developments in Iterative Shrinkage/Thresholding (IST) Algorithms, in Lisbon, 17th of June • Seminar - Semi-quantum key distribution with less states and Semi-quantum secret sharing without entanglement, in Lisbon, 17th of June • SEON 2011 - IX Symposium On Enabling Optical Networks and Sensors, in Aveiro, 1st of July • Seminar - Semi-quantum key distribution with less states and Semi-quantum secret sharing without entanglement, in Lisbon, 1st of July • Talk - Fibring as biporting subsumes asymmetric combinations, in Lisbon, 8th of July • Escola de Verão ''Criptografia e Segurança da Informação'' , in Lisbon, 13th of July • Graphene-Based Electronics for RF Communications and Sensing, in Aveiro, 19th of July • First Lisbon Machine Learning School (LxMLS 2011), in Lisbon, 20 th of July • 3rd International ICST Conference on Mobile Networks And Management, in Aveiro, 21th of September • Seminar - “Organic electronics, now with biomolecules” , in Lisbob, 22th of September • Seminar - Weyl-Wigner formulation of quantum mechanics, in Lisbon, 23th of September • Talk - Mobile Video Coding Challenges, in Lisbon, 23th of September • Talk - On meet-combination of logics, in Lisbon, 23th of September 13 ANNUAL REPORT 2011 – KEY IT INDICATORS • Palestra - “Iterative Processing for Cooperative Communications Allowing Intra-Link Errors”, in Lisbon, 18th of October • Seminar - Communications with Single and Entangled Photon Pairs, in Aveiro, 20th of October • Seminar - Semi-quantum secret sharing without entanglement, in Lisbon, 27th of October • Iberian Meeting on Computational Electromagnetics, in Sesimbra, Portugal, 2th of November • Seminar - Recurrence in quantum walks, in Lisbon, 3th of November • Workshop on Operational Research in Telecommunications, in Lisbon, 4 th of November • Seminar - On co-algebraic dualities for modal logics, in Aveiro, 4 th of November • Seminar - Taming detector side channels in quantum cryptography, in Lisbon, 25th of November. • Workshop Tecnologia para o Espaço e sinergias com Polos de Competitividade, in Aveiro, 28th of November • • 4th Annual Videogame Conference, in Porto, 2-4th of December 4th Annual Conference on Art and Science of Videogames, Videojogos 2011, in • Porto, 2nd of December Conference on The mosaic method for combinations of tense and modalities , in Lisbon, 9th of December • Workshop on White Space Technologies, in Aveiro, 12th of December • Performance Models of OFDMA Systems, in Porto, 12th of December During 2011 it researchers were awarded the following prizes: Carlos Fernandes, UTL-Santander prize in the area of Electrical Engineering, 2011. Fernando Pereira, Honorable Mention, UTL-Santander prize in the area of Electrical Engineering, 2011. 14 ANNUAL REPORT 2011 – KEY IT INDICATORS Fernando Pereira, has been elected to serve on the Signal Processing Society Board of Governors in the capacity of Member-at-Large for a 2012 term, 2011. Andreia Mordido, Calouste Gulbenkian Foundation award, ''Estímulo à Investigação'' 2011. Hugo Silva and André Lourenço Best Paper Award, Conference ''USAB 2011. Fernando Velez, “ANACOM URSI Portugal 2011", Honorable Mention with the work “Fixed WIMAX Profit Maximisation with Energy Saving Through Relay Sleep Modes and Cell Zooming“, 2011 . Navin Kumar, Rui Aguiar and L. Alves; "Fraunhofer Challenge 2011 ", Won Second prize in PhD category for the best Idea in PhD thesis work for session 2010-1011, 2011. Leonor, N., Rafael Caldeirinha, "Semi-finalist of the IEEE AP-S Student Design Contest 2011: Radiation Patterns on a Budget”, 2011. Navin Kumar, Nuno Rafael Lourenço; L. Alves; Rui Aguiar; "Visible Light Communication for Road Safety”, Best Poster Award in the Engineering Category at Annual Research Day at University of Aveiro, 2011. Tiago Alves, Adolfo Cartaxo, "Best paper award ",Optics Conference 2011, 2011. Margarida Silva, Carla Simões, Hugo Silva, Award “Engenheiro Jaime Filipe", Portuguese Social Security Institute, 2011. A. Veiga, Sara Candeias; Fernando Perdigão, 3rd Best Paper, “8th Symposium in Information and Human Language Technology (STIL 2011)" 2011. Dias, J. D., João Isento, Joel Rodrigues, L. Lloret, Best Paper Award "Performance Implications of Fragmentation Mechanisms on Vehicular DelayTolerant Networks ", 2011 . Mariana Almeida, " Honorable Mention” “Prémio Científico IBM 2010", 2011. 15 ANNUAL REPORT 2011 – KEY IT INDICATORS Hugo Marques, beatriz Borges, Best Poster Award, “Contactless Battery Charger with High Relative Separation Distance and Improved Efficiency” 33rd International Telecommunications Energy Conference – INTELEC, 2011 . Nuno Freire, Jorge Olvieira Estima, António Cardoso, Best Paper Award, 12th Portuguese-Spanish Conference in Electrical Engineering, 2011 . Ana Teresa Pereira, Quirina Ferreira, Edison Pecoraro, Carmen Ferreira, Jorge Morgado, Luis Alcácer; Best Poster "Inkjet printing of organic field-effect transistors using biocellulose derivative materials", XXII Encontro Nacional da SPQ”, 2011. Eduardo Pinheiro, Outstanding Reviewer of 2010, IEEE Transactions on Instrumentation and Measurement , 2011 . José Barndão Faria, "IEEE Fellow", Fellow IEEE, 2011. it is a member of the CIENCIA VIVA, the National Agency for Scientific and Technological culture and co-operates in some of its events, namely those related with the diffusion of know-how on electromagnetic radiation and its effects on the human body. Project MONIT, (www.lx.it.pt/monit) is actively engaged in promoting and diffusing know how on electromagnetic radiation and mobile communications. Occasionally, through this project, it offers two week training in the measurement of electromagnetic radiation. Sponsored by VODAFONE and in cooperation with IST, it organized and implemented a 30-hour update course in Telecommunication Systems for high school teachers which was run once in 2011 (25 teachers). Also in cooperation with IST, it organized visits and demonstrations for high school pupils, involving about 1200 pupils (in 2011. 16 ANNUAL REPORT 2011 – KEY IT INDICATORS 2. KEY IT INDICATORS Human Resources In 2011 it human resources included 808 people distributed as follows: • 260 researchers; • 211 PhD students; • 300 grantees; • 15 technical; • 22 administrative. All researchers but 2, hold a PhD degree. The distribution of all human resources between the three sites is represented graphically in Figure 2.1. It is obvious from this figure that the ratios between PhD students and researchers and grantees and researchers is much higher in Aveiro than in Lisbon a fact that is partly explained by the much higher involvement of Aveiro in FP7 projects. 17 ANNUAL REPORT 2011 – KEY IT INDICATORS 160 140 120 100 80 Lisbon 60 Coimbra 40 Aveiro 20 0 Figure 2.1: Distribution of it human resources between the three sites The distribution of researchers and PhD students between sites and delegations is shown in Figure 2.2. One must bear in mind that the 13 PhD students shown in figure as belonging to the Leiria delegation, because they are all assistants of IPL, as PhD students, they “belong to” FCTUC (12) and UA (1). This figure shows, more than the previous one, the lower proportion of PhD students in relation to the number of researchers in the IST site and, even more seriously, in the ISCTE delegation. 18 ANNUAL REPORT 2011 – KEY IT INDICATORS 300 250 200 150 Researcher 100 50 PhD Student 0 Figure 2.2: Distribution of itresearchers and PhD students among main sites and delegations Unfortunately our accounting systems only provides site information for grantees and thus it is not yet possible to have a more detailed picture of grantees distribution. As a result of the application it quality policy, from the 234 researchers holding a PhD Degree, 50 were excluded from FCT basic funding, and 12 had a 25 % reduction of FCT basic funding. As a result in the first semester of 2011 it has 178.25 eligible researchers. The distribution of it administrative staff is shown on Figure 2.3. 19 ANNUAL REPORT 2011 – KEY IT INDICATORS Figure 2.3 Distribution of it administrative staff 20 ANNUAL REPORT 2011 – KEY IT INDICATORS Projects Funding Agency Number ADI 1 BIT 1 BRISA 2 British Council/CCISP 1 ESF, COST 11 ESF, PESC 1 EU 2 EU, FP6 ICT 1 EU, FP7 17 FCT 1 FCT, RIPD 1 FCT, UT Austin 2 FCT/CAPES 1 FCT/CMU 4 FCT/GRICES 1 FCT/MIT 1 FCT/PTDC 64 FLAD 1 IEEE, TC-25 1 INRIA 1 Intellab 1 IPS 1 IT 30 IT, CreativeSystems, Vicaima 1 JustBit 1 Marinha Portuguesa 2 Microsoft 1 Ministério da Ciência e Inovação Espanhol 1 Nokia Siemens Networks 1 Optimus, TMN, Vodafone 1 Plano de Inovação PTInovação 1 PO Centro 1 Private International Company (confidential) 1 PT-Inovação 5 QREN 2 QREN, PT-Inovação 4 QREN, Televés 1 Thales Alenia Space 1 Table 2 – Number of active projects in 2011, according to funding source 21 ANNUAL REPORT 2011 – KEY IT INDICATORS Publications Books Journals Conferences Patents 63 250 561 16 MSc Thesis PhD Thesis 187 35 Table 3 – Number of published works in 2011 "Books and Books Chapters”- Fully authored books, Editor books, and book chapter contributions; "Journals”- Papers in International refereed journals; "Conferences”- Communications in International and National refereed conferences; “Patents” - Patent applications; "MSc and PhD Theses”- Concluded dissertations. It is interesting to compare the distrubution of the number of researchers per site and delegation with the number of number of published works (papers in international journals and communications to refereed conferences). One should note that the sum of the number of publications per site and/or delegation is higher than the number of publications for it because a significant number of publications (about 30 %) are authored by researchers from more than one site and/or delegation. This fact in itself is an important indicator that it is increasingly operating as a unity rather than as a collection of research units. In the following, it and CIENCIA paid researchers and their publications are not included. 22 ANNUAL REPORT 2011 – KEY IT INDICATORS Researchers Lisbon Coimbra Aveiro Figure 2.4 : Distribution of it researchers per site Journals Lisbon Coimbra Aveiro Figure 2.5 : Distribution of journalpapers published in 2011 per site 23 ANNUAL REPORT 2011 – KEY IT INDICATORS Figure 2.6 : Distribution of communications in international refereed conferences in 2011 per site Patents Lisbon Coimbra Aveiro Figure 2.7: Distribution of patents in 2011 per site 24 ANNUAL REPORT 2011 – KEY IT INDICATORS Figure 2.8 : Distribution of it researchers per delegation Figure 2.9 : Distribution of journalpapers published in 2011 per delegation 25 ANNUAL REPORT 2011 – KEY IT INDICATORS Figure 2.10 : Distribution of communications in international refereed conferences in 2011 per delegation Patents Lisboa IST Lisboa ISCTE Porto Coimbra Leiria Covilhã Aveiro Figure 2.11 : Distribution of patents in 2011 per delegation 26 ANNUAL REPORT 2011 – KEY IT INDICATORS Even if Figures 2.5 to 2.11 are self explanatory it is interesting to remark that at the level of papers in journals, site distribution follows very closely research distribution. Differences are slight at the level of communications to conferences and considerable at the number of patents where the importance of PT Inovação and Nokia Siemens Networks in Aveiro shines. Going into delegations, some differences are rather more striking, particularly at the level of papers in journals, which could not be seen at the site level and at communications in conferences that disappears at the level fo delegations. 27 ANNUAL REPORT 2011 – FINANCIAL OUTLINE 3. FINANCIAL OUTLINE Operational income during 2011 totalled 9.169, k€ distributed as indicated in Table 4. Major income sources (clients of services and sources of subsidies) are detailed in Table 5. Costs in 2011 totalled 7.306,5 k€ as partially indicated in Table 6. Main asset changes in 2011 are listed in Table 7. All values in tables 4, 5, 6 and 7 are provisional and subject to revision. Sources of Income Amount [k€] Services to third parties 1.473,6 k€ Subsidies 6.381,2 k€ Other 1.314,5 k€ TOTAL 9.169,3 k€ Table 4 – Total operational income in 2011 Major clients of services Amount [k€] PT Inovação 808,8 k€ Brisa 199.9 k€ VODAFONE 86,7 k€ TMN 82,4 k€ Be Artis 58,5 k€ Nokia Siemens 61,7 k€ Huawei Technologies 55,2 k€ 29 ANNUAL REPORT 2011 – FINANCIAL OUTLINE Main sources of subsidies Amount [k€] Fundação para a Ciência e a Tecnologia 4.140,6 k€ Commission of the European Communities 854,7 k€ Universidade de Aveiro 987,6 k€ Agência de Inovação 376,1 k€ Table 5 – List of major income sources during 2011 Costs Staff Amount [k€] 1.807,3 k€ Researchers 720,1 k€ Scholarships 2.290,1 k€ Missions 770,1 k€ Books and journals 66,9 k€ Consumables 330,1 k€ Table 6 – Major costs in 2011 Assets Increase in tangible assets Depreciation New Technical and Scientific Equipment Amount [k€] 836,3 k€ 1.452,1 k€ 724,7 k€ Table 7 – Main asset changes in 2011 30 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4. RESEARCH AREAS 4.1 Wireless Communications 4.1.1 Area Coordinators Carlos Cardoso Fernandes Nuno Borges de Carvalho 4.1.2 Human Resources Overview Degree Aveiro Coimbra Lisboa Professor Emeritus 0 0 2 Full Professor 3 0 4 Associate Professor 4 0 6 Assistant Professor 10 1 24 Assistant Lecturer 1 0 1 Post. Doc 11 1 0 PhD Student 27 3 45 (Licenciado) 1 1 2 42 6 84 TOTAL Table 8 – Overview of human resources in the Wireless Communication Area in 2011 31 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Permanent Collaborators Position Assistant Professor Full Professor Degree PhD Name Adão Silva Group Mobile Networks – Av Agregação Afonso Barbosa PhD Alberto Jesus Nascimento Antennas and Propagation – Lx Mobile Systems - Av Agregação Américo Correia Radio Systems – Lx Associate Professor Assistant Professor Assistant Professor Assistant Professor PhD António Alves Moreira PhD António Rodrigues Antennas and Propagation – Lx Radio Systems – Lx PhD Armando Rocha Radio Systems – Av PhD Arnaldo Silva Rodrigues de Oliveira Radio Systems – Av Associate Professor Post. Doc. PhD Atílio Gameiro Mobile Networks – Av PhD Ayman Radwan Mobile Systems - Av PhD Student MSc Carla Oliveira Full Professor Agregação Carlos Cardoso Fernandes PhD Carlos Gaspar Ribeiro Antennas and Propagation – Lx Antennas and Propagation – Lx Mobile Networks – Av Agregação Carlos Paiva Agregação Carlos Salema PhD Custódio Peixeiro MSc Daniel Sebastião Post. Doc. PhD Du Yang MSc MSc Eduardo Lima Assistant Professor Assistant Professor PhD Fernando J. Velez PhD Fernando Nunes Post. Doc. Full Professor Assistant Professor Associate Professor Professor Emeritus Assistant Professor MSc Antennas and Propagation – Lx Antennas and Propagation – Lx Antennas and Propagation – Lx Antennas and Propagation – Lx Mobile Systems - Av Antennas and Propagation – Lx Radio Systems – Lx Communication Theory – Lx 32 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position Associate Professor Assistant Professor Associate Professor Associate Professor Assistant Professor Assistant Lecturer Degree PhD Name Francisco Cercas Group Radio Systems – Lx PhD João Carlos Silva Radio Systems – Lx Agregação João Costa Freire Wireless Circuits – Lx PhD João Nuno Matos Radio Systems – Av PhD João Vaz Wireless Circuits – Lx PhD Jonathan Rodriguez Gonzalez Mobile Systems - Av Post. Doc. PhD Jorge dos Santos Freitas de Oliveira Wireless Circuits – Av Assistant Professor Agregação Jorge Rodrigues da Costa Antennas and Propagation – Lx José André Rocha Sá e Moura Radio Systems – Lx Assistant Professor Full Professor Agregação José Carlos Neves Radio Systems – Av Full Professor Agregação José Carlos Pedro Wireless Circuits – Av PhD José Sanguino Radio Systems – Lx PhD Joseph Mwangoka Mobile Systems - Av Licenciatura Lúcio Studer Ferreira PhD Luís Carlos Carneiro Gonçalves Antennas and Propagation – Lx Mobile Networks – Av Agregação Luís M. Correia Assistant Professor Post. Doc. PhD Student Post. Doc. Associate Professor PhD Student Assistant Lecturer Assistant Professor Assistant Professor Assistant Professor Post. Doc. Luís Miguel Fernandes Antennas and Propagation – Lx Administrative Lisboa PhD Marco Alexandre Ribeiro Radio Systems – Lx PhD Maria João Rosário Wireless Circuits – Lx PhD Mário Marques Silva Radio Systems – Lx PhD Mário Silveirinha PhD Michele Albano Antennas and Propagation – Co Mobile Systems - Av 33 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position Licenciado Degree MSc Name Mónica Rute Cardoso Antunes Group Antennas and Propagation – Lx Associate Professor Assistant Professor Assistant Professor Agregação Nuno Borges Carvalho Radio Systems – Av PhD Nuno Souto Radio Systems – Lx PhD Paulo Gustavo Martins da Silva Radio Systems – Lx Assistant Professor Assistant Professor Assistant Professor Post. Doc. PhD Paulo Jorge Coelho Marques Mobile Systems - Av PhD Pedro Amaro Sebastião Radio Systems – Lx PhD Pedro Mendonça Santos Wireless Circuits – Lx PhD Pedro Miguel Cabral Wireless Circuits – Av Assistant Professor Assistant Professor Assistant Professor Coordinator Professor Post. Doc. PhD Pedro Miguel Lavrador Wireless Circuits – Av PhD Pedro Renato Tavares Pinho Radio Systems – Av PhD Pedro Vieira Radio Systems – Lx PhD Rafael Caldeirinha PhD Ramiro Samano Robles Antennas and Propagation – Lr Mobile Networks – Av PhD Student MSc Rui Filipe Rosa Paulo Radio Systems – Lx Assistant Professor PhD Rui Miguel Henriques Dias Morgado Dinis Radio Systems – Lx Assistant Professor Post. Doc. PhD Sérgio Almeida Matos Assistant Professor Post. Doc. PhD Telmo Reis Cunha Antennas and Propagation – Lx Antennas and Propagation – Co Wireless Circuits – Av PhD Wonhoon Jang Radio Systems – Av Stanislav Maslovski Table 9 – Permanent collaborators working in the Wireless Communications Area in 2011 34 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Other Collaborators Position PhD Student Degree MSc Name Abubakar Sadiq Hussaini Group Mobile Systems - Av PhD Student MSc Alexandre Passos de Almeida Radio Systems – Lx PhD Student MSc Ana Catarina Caniço Cruz PhD Student MSc Andela Zaric Full Professor PhD Aníbal Manuel de Oliveira Duarte Antennas and Propagation – Lx Antennas and Propagation – Lx Mobile Systems - Av PhD Student Licenciatura António Abreu Wireless Circuits – Lx Assistant Professor PhD Student PhD António Navarro Mobile Networks – Av MSc António Serrador PhD Student Licenciatura António Tavares Antennas and Propagation – Lx Radio Systems – Av Assistant Professor PhD Student PhD António Topa MSc Carlos Alberto Barreiro Mendes Antennas and Propagation – Lx Antennas and Propagation – Lx Carlos Miguel Sendas Pires Radio Systems – Lx PhD Carlos Sá da Costa Radio Systems – Lx MSc Cesaltina Nabais Escarigo Ricardo Antennas and Propagation – Lx Daniel Filipe Marques Castanheira Mobile Networks – Av PhD Student Associate Professor PhD Student PhD Student PhD Student MSc Daniel Luís Silveira Robalo Radio Systems – Lx PhD Student MSc Darlene Maciel Neves Radio Systems – Av PhD Student MSc David Emanuel Dias Fernandes Antennas and Propagation – Co Eduardo Lourenço e Sá Antennas and Propagation – Lx Radio Systems – Lx PhD Student PhD Student MSc Fábio José Silva Amaral PhD Student MSc Fernando de Sousa Communication Theory – Lx 35 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position Assistant Professor PhD Student Degree PhD Name Fernando Fortes Group Wireless Circuits – Lx MSc Fernando Santos Azevedo Wireless Circuits – Lx PhD Student MSc Filipa Isabel Rodrigues Prudêncio Antennas and Propagation – Lx PhD Student MSc Filipe Alexandre da Silva Rodrigues Radio Systems – Av Assistant Professor PhD Student PhD Filipe Duarte dos Santos Cardoso Firooz B. Saghezchi Antennas and Propagation – Lx Mobile Systems - Av Francisco José Dinis de Sousa Fernandes Ganhão Radio Systems – Lx Radio Systems – Lx MSc PhD Student MSc MSc Francisco Monteiro Assistant Professor PhD Student PhD Francisco Sena da Silva MSc PhD Student MSc Communication Theory – Lx George Jr. Shaundel Matthew Mobile Systems - Av Gonçalo Valadão PhD Student Hamed Hasani PhD Student Hugo Almeida e Marques Pattern and Image Analysis – Lx Antennas and Propagation – Lx Mobile Systems - Av PhD Student MSc Hugo Miguel Cravo Gomes Radio Systems – Av PhD Student MSc Ivo Luís de la Cerda Garcia e Sousa Radio Systems – Lx PhD Student MSc João Carlos Roquete Fidalgo Antennas and Propagation Canto – Lx PhD Student Licenciatura PhD Student MSc João M. Ferro Radio Systems – Lx Radio Systems – Av João Paulo Martins PhD Student MSc João Tavares Radio Systems – Av PhD Student MSc João Tiago de Figueiredo e Costa Antennas and Propagation – Co PhD Student MSc Joaquim Manuel C.S. Bastos Mobile Systems - Av 36 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position Assistant Professor Full Professor Degree PhD Name Jorge Paulo Alves Torres Agregação José Leitão PhD Student MSc PhD Student MSc José Miguel Ferreira Preto Marques Luzio Radio Systems – Lx Associate Professor PhD Student PhD José Rocha Pereira Radio Systems – Av MSc Jun Li PhD Student MSc Luís M. Borges Pattern and Image Analysis – Lx Radio Systems – Lx PhD Student MSc Luís Miguel Mendes Wireless Circuits – Lx PhD Student MSc Luis Pedro Marques Brás Radio Systems – Av PhD Student MSc Luisa Caeiro Assistant Professor PhD Student Licenciatura Manuel Dinis Antennas and Propagation – Lx Radio Systems – Av MSc Marian-Daniel Iordache PhD Student Group Wireless Circuits – Lx Communication Theory – Lx José Miguel da Silva Bergano Radio Systems – Av Mário Jorge Simão de Assunção Network Architecture and Protocols – Lx Wireless Circuits – Lx Professor Emeritus PhD Student Agregação Mário Lança Wireless Circuits – Lx MSc Michal Lukasz Mackowiak PhD Student MSc Miguel Campilho Gomes Antennas and Propagation – Lx Wireless Circuits – Lx PhD Student Miguel Ramos Pereira Radio Systems – Lx PhD Student Mohsen Koohestani Antennas and Propagation – Lx Mobile Systems - Av PhD Student MSc Muhammad Alam PhD Student Radio Systems – Av Nelson José Valente da Silva PhD Student MSc Norberto José Gil Barroca Radio Systems – Lx PhD Student MSc Nuno Cota Radio Systems – Lx PhD Student MSc Nuno Miguel Abreu Luís Radio Systems – Lx 37 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position PhD Student Degree MSc PhD Student Name Nuno Miguel de Figueiredo Garrido Group Radio Systems – Lx Nuno Miguel Faria Pires Antennas and Propagation – Lx Radio Systems – Lx PhD Student MSc PhD Student MSc PhD Student MSc Pedro Miguel Ferreira de Oliveira Pedrosa Radio Systems – Lx PhD Student MSc Rafal Glogowski Reza Holakouei Antennas and Propagation – Lx Mobile Networks – Av MSc Ricardo Dias Fernandes Radio Systems – Av Licenciatura Ricardo Matos Abreu Radio Systems – Av Riccardo Bassoli Mobile Systems - Av PhD Student PhD Student Licenciado PhD Student Orlando Manuel Brito Cabral Pedro Miguel Duarte Cruz PhD Student Radio Systems – Av Radio Systems – Lx Rui Jorge Ferreira Esteves Assistant Professor PhD Rui Miguel Neto Marinheiro Radio Systems – Lx Post. Doc. Licenciatura Sara Helena Marques Teodoro Radio Systems – Av PhD Student MSc Senka Hadzic Mobile Systems - Av PhD Student MSc Sérgio Carlos da Conceição Pires Radio Systems – Av Sérgio Morgadinho Rebelo Antennas and Propagation – Lr Radio Systems – Av PhD Student PhD Student MSc Susana Mota Associate Professor PhD Student PhD Telmo Fernandes PhD Student MSc Teresa Paula Soares de Araújo Tiago André Nogueira Morgado Antennas and Propagation – Lr Radio Systems – Lx Antennas and Propagation – Co 38 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Position PhD Student Degree MSc Name Tiago Miguel Valente Varum Group Radio Systems – Av PhD Student MSc Vahid Nazari Talooki Mobile Systems - Av PhD Student MSc Valdemar Monteiro Mobile Systems - Av Victor Sucasas Iglésias Mobile Systems - Av PhD Student Table 10 – Non-permanent collaborators working in the Wireless Communications Area in 2011 39 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.3 Summary of Research Achievements 4.1.3.1 4.1.3.2 Contributing groups Antennas and Propagation - Lx Antennas and Propagation - Co Antennas and Propagation - Lr Mobile Networks - Av Radio Systems - Av Radio Systems - Lx Wireless Circuits - Av Antenna Analysis and Design Work on antennas has been focused on a few main topics: antennas for RFID and UWB systems and antennas for microwave and mm-wave applications with emphasis on antennas for Ka-band satellite communications. 4.1.3.3 RFID and UWB Antenas Work continued on the design of UHF RFID tag antennas and UWB antennas for indoor personal communications and for indoor localization. New low-cost antennas for UWB indoor localization, including hybrid antennas appropriate for simultaneous RFID identification and UWB localization have been designed. A system demonstrator and new algorithms for indoor localization enhancement were developed. Work continued also on near-field reader antennas for UHF-RFID confined detection applications, including mirror embedded transparent antennas. Low cost UHF RFID tag antennas for near-body applications, including interworking with body-implantable antennas have been designed, fabricated and experimentally tested. Emerging low-cost tag fabrication techniques based on ink-jet printed have been explored. 40 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS A source-stirred UWB radiation efficiency measurement method was developed and results were compared with reverberation chamber measurements and computer simulations. The method provided a simple cavity-based approach to UWB antenna efficiency measurement. An efficient and simple UWB model of a human limb was introduced for antenna simulations. The adequacy of the model was confirmed by antenna measurements and an antenna prototype for wearable systems was developed. UWB matching resilience of dielectric loaded antennas was confirmed and improved through measurements and by using a simple and accurate human limb model. 4.1.3.4 Satellite related antennas Development of a new concept of low-cost antenna for GPS-based positioning calibration for precision demanding applications like aircraft instrument landing systems in airports; New developments on low-cost dielectric lens-based mechanical steerable beam antenna for Ka ground terminal satellite services; Design of multi-beam metamaterial-based antennas for Ka satellite deck installation; Design and test of microstrip patch antenna elements and arrays for Ka band space applications; 4.1.3.5 Other antenna related topics Other lines of research have been pursued including: Analysis of antenna-user interaction through the evaluation of mutual coupling and correlation, with emphasis on printed antennas for small terminals; Design and test of an implantable compact antenna to be applied under the human skin for medical applications; 41 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Exploration of reverberation chamber design for small antenna efficiency measurement. Work was also put in the designing of special antenna structures for vehicular communications, among vehicles and between vehicles and infrastructures based on wireless communication technology known as dedicated short range communications (DSRC). DSRC are in great development with the aim of reducing traffic problems and improving road safety. The study addressed both the development of an antenna solution for the mobile module, usually named On-Board Unit (OBU) and the design of an antenna for the RSU (Road Side Unit). 4.1.3.6 Circuits and systems for wireless communications During 2011 the work devoted to wireless circuits and systems was mainly concentrated in the design of flexible radio circuits and systems for several applications, including: Software Defined Radio systems, Wireless Power Transmission, Nonlinear Models and Characterization for high speed digital buffers, Circuits for Dedicated Short Range Communications. 4.1.3.7 New Agile Transmitters reconfigurable ΣΔ-based transmitter architecture supporting multichannel multimode data transmission has been designed and validated. The high flexibility of this architecture enables a data transmission scenario where the frequencies of the carriers and the spectral masks can be easily changed through software, making this agile transmitter interesting for use in cognitive radio-based applications. Moreover injection locked class-E power amplifiers were built and characterized in CMOS technologies. The prototypes achieved almost 30 dBm output power. An EER amplifier was designed and built. An envelope detector and a DC-DC converter were included in the 42 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS architecture. The converter filter is off-chip but the rest of the system is fully integrated. Monolithic power combiners are being studied and designed. These structures will be integrated with the power amplifiers. A TLT and LC baluns and Wilkinson combiners were submitted to fabrication in CMOS technology. An effort was made with the internationalization. Research cooperation with State Key Laboratory from Macau University has also started in this field. The challenge to use new CMOS technologies with 130, 90 and 65nm channel length was achieved. Also an important investment was made in using electromagnetic and systemic simulators. Highly efficient wireless transmitter architectures based on a pulsed operation were also addressed this year in complementing agile transmitters. In that sense the study of the viability of building highly efficient and linear carrier-burst transmitters, namely to study their practical implementation difficulties was addressed. Beyond these works, research was carried on the design of nonlinear behavioral models for telecommunication sub-systems and devices, and their use in digital pre-distortion linearization. The application of these studies has been directed to both conventional Cartesian and polar wireless transmitters, namely for current-mode and switched-mode RF power amplifiers and wireless transmitter systems. A buck switch mode converter at 100MHz was fabricated and tested in a 180nm CMOS, to supply a Class-D PA. A 5V to 1.8V buck converter at 100MHz was also designed and sent for fabrication, using a cascode topology for the power circuit switches, in a 180nm CMOS. The study and design of a fully integrated buck switch mode converter was started. The idea is to increase switching frequencies up to hundreds of MHz (>300), in order to integrate the LC filter. Preliminary results indicate the viability of the proposal. A strong effort was put on the study of its nonlinear impairments to the overall linearity and efficiency. Other technologies have been approached as self-oscillating power amplifiers that constitute an innovative architecture that has theoretical 100% efficient operation 43 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS under linear operation. The end of this year also marked the beginning of a research project in collaboration with an International Company aiming to study distortion generation mechanisms in Doherty power amplifiers. 4.1.3.8 Agile Receivers This year some innovative ideas for increased dynamic range and bandwidth for software defined radio receivers were also explored, including the study of nonlinear behaviors, which is fundamental for the increase of the dynamic range. This was complemented with theoretical evaluation of polynomial behavioral model simplifications using circuit level physical knowledge and general Volterra series calculations, and also combined with the study of Predistortion theoretical limits. The goal of this work is to calculate the maximum power efficiency of an amplifier with and without the use of a predistorter in order to determine the maximum profit that can be obtained using this technique. Study of low noise amplifiers was also pursued this year by designing a simple version of a SiGe active inductor with less transistors and independent voltage control of inductance and quality factor. A 30GHz LNA with CMOS technology was designed and sent for fabrication. 4.1.3.9 Signal Integrity in Devices Advances in the design of new enhanced behavioral models for accurate simulation of Input/Output buffers of IC circuits were conducted. These new models extend the accuracy of previous models and can incorporate the characterization of additional physical phenomena within the IC chip, such as bouncing of the power and ground rails. Additionally, such models aimed also at very high simulation efficiency. This is very important for proceeding with robust estimation, through simulation (before prototyping), of signal integrity of complex IC design devices, such as in System-in-Package or System-on-Chip architectures. 44 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.3.10 Short Range Communications Systems Work continued on the proof of concept on wireless communications system for road applications, with emphasis on safety, following the “WAVE recommendation”. While the standard IEEE-802.11.p is not completed, the development follows the IEEE 802.11.a whenever necessary. Following the current 802.11p recommendations, basic functionalities are being implemented in order to comply with the identified applications and scenarios. 4.1.3.11 Wireless Power Transmission This year a new area emerged on the design of better and improved circuits for wireless power transmission: the effort was put on the design of RF-DC converters and on the design of highly efficient waveforms for maximizing the range of these circuits. 4.1.3.12 Earth-Satellite propagation and instrumentation Work in this sub-area included the characterization of propagation through vegetation as well as fundamental research on electromagnetics of complex media with possible applications to antennas and guided wave structures. Studies on EM exposure assessment have also been pursued. 4.1.3.13 Radiowave propagation modelling A time varying dRET simulator is being developed to study the effects of vegetation in radiowave propagation. A ray tracing model is being developed with MIMO capabilities for the extraction of doubly selective channel models. A multi-frequency swept-time delay cross-correlation channel sounder is being developed for propagation studies. A measurement system is 45 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS also being developed that enables DVB-T trials, both at radio and link levels in addition to video and channel coding optimizations. Building scattering mechanisms are being studied for millimeter wave frequencies (e.g. 61 GHz). Channel models are being developed for Body Area Networks; 4.1.3.14 Work Electromagnetics of Complex Media continued on the characterization and applications of metamaterials, namely based on wire media or nano-wires: Investigation of RFID systems with ultra-confined interrogation region; Experimental verification of the detection of targets separated by subwavelength distances using a metamaterial based “superlens”; Prediction and experimental verification of ultra-confined “interlaced plasmons” in arrays of crossed metallic wires, which may enable mimicking the role of surface plasmon polaritons at IR and microwave frequencies; Development of an FDTD based algorithm for the extraction of the effective medium parameters of metamaterials. Proposal for the realization of hyperbolic local media based on;wire media loaded with lumped loads, and development of the corresponding effective medium model; Study of quantum metamaterials based on semiconductors, and proposal for tailoring the electron transport using novel metamaterial inspired semiconductor superlattices; Study of the Casimir effect (based on the quantum fluctuations of the electromagnetic field) in moving media, and Casimir repulsion using nanowires metamaterials. Fundamental work on electromagnetic wave propagation in complex media, namely chiral, anisotropic and bianisotropic media has been continued. Main results of this work include: 46 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Analysis of interfaces between isotropic and anisotropic media using a unified coordinate free approach; Study of dispersion and losses in waveguides containing negative or chiral metamaterials; Development of a new geometrical approach for the analysis of electromagnetic wave propagation in unbounded bianisotropic media using Clifford algebras; Redefinition of a perfect electromagnetic conductor (PEMC) as a limit of a Lorentz invariant isotropic medium (MIM) using space time algebra; Work on planar guided wave structures with omega and indefinite media was pursued. A detailed study of mode characteristics in several indefinite waveguides was carried and some uncommon properties as coexistence of forward and backward waves and contra directional coupling have been analyzed. 4.1.3.15 Transmission and Receiving Systems These studies were mainly concentrated on the optimization and performance of current and next generation radio systems, both for mobile communications (such as Wimax, LTE and LTE-Advanced) and satellite systems, with special emphasis on radio navigations systems. 4.1.3.16 Mobile Communications The achievements for mobile communications focused on several aspects of present and future radio systems including modulation, coding, equalization, channel estimation and synchronization. Most of these studies were based on an analytical approach. Following the work from previous years, studies were performed on interference coordination and power saving techniques for LTEAdvanced. Study of capacity enhancement of wireless communications systems using multiuser MIMO techniques, in particular with applications for LTE in microcell scenarios. 47 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Development of exact and approximate analytical methods for the performance evaluation of Orthogonal Frequency Division Multiplexing (OFDM) schemes with nonlinear effects. Iterative frequency-domain receivers for block transmission techniques with rate-1 Space Time Block Coding (STBC) for two and four transmit antennas using both OFDM and Single-Carrier (SC) schemes. Design, analytical performance and evaluation of multipacket detection schemes for SC-FDE systems. Evaluation of channel estimation techniques for MIMO-OFDM systems with Complex Rotation Matrices. Analytical evaluation of the correlation of TCH sequences combined with nonlinear OQPSK signals. Performance of channel codes in wireless communication systems using efficient simulation. 4.1.3.17 Cognitive Radio The development of cognitive radio (CR) terminals that can sense the radio environment, reason about it, and adapt their transmission characteristics to the existing opportunities represents one trend for efficient spectrum management. Specific topics addressed in 2011 regarding spectrum sensing were: Sensing algorithms including localized versions based on feature detection and collaborative algorithms. New selectivve reporting algorithm proposed. Characterization of spectrum activity through the development of dedicated scanning spectrum systems. One measurement setup was developed and used to characterize spectral activity in the Aveiro campus. Study of decentralized cooperative spectrum sensing for ad-hoc disaster relief networks. Model for the correlation between Quality of Service and Experience in cognitive radio networks. Integrated Common Radio Resource Management with Spectrum Aggregation over non-contiguous frequency, and its energy efficiency. Study of efficient detection methods for active users in random access networks; 48 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.3.18 Satellite Systems Study and comparison of different transmission schemes (OFDM versus Single Carrier with hierarchical constellations) for broadcast satellite systems. Study, characterization, development and implementation of new algorithms for coordinated positioning systems using Global Navigation Satellite Systems (GNSS) with practical applications, such as navigation systems for the visual impaired, autonomous train collision detection systems or assisted navigation based on V2V (vehicle-tovehicle) communications and GPS. Continuation of the development of the IT GNSS monitoring station. 4.1.3.19 Radio Networks Radio resource management and network planning Development of CRRM algorithms for heterogeneous mobile communication systems and development of RRM algorithms for virtual communication systems; Development of various simulators for the air interface of UMTS-FDD, with HSDPA and HSUPA, and LTE, enabling analysis of traffic aspects as well as load and handover ones. Distributed brokerage service to supervise and control a 4G infrastructure in terms of user admission, network selection, load balancing and network congestion; Fixed WiMAX radio and network planning. Relay sleep modes and cell zooming. Experimental Characterization of WiMAX propagation in microcellular and picocellular environments; Unified propagation model for Wi-Fi, UMTS, WiMAX and LTE planning; Performance analysis of a two-phase contention scheme for the scheduled channel polling MAC protocol; 49 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Study of business models for a 4G environment to optimize the usage of available wireless network resources. 4.1.3.20 Architectures for Wireless Systems Future wireless systems should fulfill several goals, among which: provision of true broadband wireless access and enhanced system capacity when compared with current 3rd Generation (3G) networks. To achieve a generalized deployment, all technical solutions are constrained by capital and operational expenditures and should provide the required flexibility to allow upgradeability and reconfigurability. This requires the definition of novel architectures and appropriate algorithms / protocols. At the architecture level work was focused on distributed antenna systems (DAS) and cooperative diversity / relaying systems. Work topics included: Precoding techniques for Coordinated Multipoint based networks; Power allocation strategies for MIMO-OFDM based systems; Channel estimations techniques for Relay-assisted based networks; Linear and non-linear precoding techniques; Receiver optimization; Channel estimation for SISO and MIMO channels; Hardware implementation in FPGA of selected algorithms; Scheduling algorithms for distributed antenna systems; System capacity evaluation; Development of system level simulators to support the research. Work addressed also the development and optimization of combinations of physical and network techniques based on intercell and wireless intracell cooperation in a cellular enhanced architecture to 50 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS increase network capacity and coverage, improve flexibility, robustness and fairness. Specific aspects dealt with recently are: Precoding techniques for relaying systems; Distributed space-time-frequency coding for systems with cooperative diversity; Channel estimation for systems with relays; Development of system level simulators for systems employing relays to support the research. 51 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.4 Running and Concluded Projects Overview Funding Agency Number BIT 1 BRISA 2 ESF, COST 7 ESF, PESC 1 EU, FP6 ICT 1 EU, FP7 10 FCT/MIT 1 FCT/PTDC 15 IT 4 IT, CreativeSystems, Vicaima 1 Marinha Portuguesa 2 Optimus, TMN, Vodafone 1 PO Centro 1 Private International Company 1 (confidential) PT-Inovação 1 QREN, PT-Inovação 1 Table 11 – Number of active projects in the Wireless Communications Area in 2011 52 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Activity in Projects Acron / Ref Title ADCOD Advanced Code and Receiver Designs for Transmission over Selective Radio C Funding FCT/PTDC Descript. Future wireless systems are expected to support data rates of several hundreds of Mbit/s in a variety of scenarios with high spectral and power efficiencies. Due to high transmission rates the channel will be severely time dispersive. For this reason, block transmission techniques combined with frequency-domain equalization (such as, OFDM (Orthogonal Frequency Division Multiplexing) and SC-FDE (SingleCarrier Frequency-Domain Equalization) modulations schemes are strongly recommendable. A key technology to improve power and spectral efficiencies is the use of multi-antenna schemes exploiting spatial diversity (such as STF (Space-Time-Frequency) codes) and spatial multiplexing (such as LST (Layered Space-Time) techniques). The use of signals with reduced envelope fluctuations is also important to allow efficient power amplification. This is particularly important in the case of OFDM signals. Conventional FDE implementations require accurate channel estimates at the receiver, something particularly important in multi-antennas systems. These estimates can be obtained with the help of appropriate training symbols or blocks. Due to frequency offsets and Doppler effects, the channel is expected to change from block to block, or even within a given block, especially for large blocks, high carrier frequencies and/or high moving speeds. In this case, it might be recommendable to employ non-coherent systems. This project considers efficient transmission schemes for frequency-selective channels. For this reason, we will employ OFDM and SC-FDE block transmission formats with multi-antenna schemes. The research team involved in this project includes researchers working in transmission, codebook and receiver design and optimization, as well as researchers working on propagation 53 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS issues. In the first phase of this project, we address the problem of STF codebook design for both coherent and non-coherent communications. In contrast with conventional approaches, the codebook design takes into account the envelope fluctuations and dynamic range of the transmitted signals, so as to allow efficient power amplification. We will also take into account non-linear effects (e.g., due to clipping of OFDM signals) in the STF code design. The impact of nonlinear distortion effects on the designed STF codes will be studied, whenever possible, employing analytical methods. Contrarily to the usual approach, we will take into account non-white noise effects (e.g., due to self-distortion inherent to nonlinear effects) in our designs. Pragmatic code designs (eventually combined with conventional error correction schemes and allowing low-complexity transmitter/receiver implementations) will also be considered. In the second phase of this project, we will generalize the results obtained in the first phase to the fading channels that are both time-dispersive and time varying (i.e., doubly selective channels). For the coherent case, the combination of suitable block/frame designs and adequate estimation and tracking techniques (both for the channel frequency response and the frequency offsets/phase noise carrier) will be considered to cope with time-varying channels. We will also develop receiver structures for the case where the channel changes significantly within a given block, both coherent and non-coherent. To achieve these goals, we need accurate channel models taking into account short-term and long-term variations. We will develop new, more accurate narrow and wideband channel models through theoretical investigations as well as experimental data gathering for different frequencies (e.g., 2.4, 5.6 and 38 GHz), in several deployment scenarios. A time-varying tapped delay line based model will be developed to represent the doubly selective channel phenomena. The combined channel model mitigation techniques such will as be suitable adaptive for coding simulating and fading modulation, interference cancellation, and other capacity enhancing techniques. We will also consider STF codebook designs and receiver designs exploiting the knowledge about short and long term channel statistics. 54 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref Title ARNAGGS Advanced Receivers and Navigation Algorithms for GPS/Galileo Signals Funding FCT/PTDC Funding FCT/PTDC Descript. The project objectives are to study and develop: a) Algorithms and methods for fast acquisition of weak navigation signals; b) Open-loop tracking architectures alternative to the conventional DLL+PLL, based on stochastic nonlinear filtering. Harsh environments such as indoor reception and use of highly-accelerative platforms will be considered; c) Structures and algorithms for advanced multipath mitigation. Alternative solutions to the double-delta correlation, based on the gating concept, will be proposed; d) Coordinated positioning techniques; e) Communication channel models relevant in navigation. A collaboration with Portuguese companies operating in aerospace activities is foreseen. 55 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref ASSIST Title COST IC0603 (ASSIST) Funding ESF, COST Descript. To assist in the research & development of antenna systems and sensors necessary for the new ubiquitous wireless society Coordinate existing research Suggest new topics Stand in a scientific/technological survey attitude To contribute to the visibility of antenna activities in Europe and to lobby for new projects Creation of an European Antenna community Conferences and Workshops Exchange of researchers Interactions academy-industry To increase public awareness of antenna related issues Acron / Ref Title C2POWER Cognitive radio and Cooperative strategies for POWER saving in multistandard wireless devices Funding EU, FP7 Descript. The promise of a truly mobile experience is to have the freedom to roam around anywhere and not be bound to a single location. However, the energy required to keep mobile devices connected to the network over extended periods of time quickly dissipates. In fact, the operational time, has been identified as the number one criteria by the majority of the consumers purchasing a mobile device. Moreover, concern about exhausting battery lifetime is also one of the main reasons why users do not opt to use advanced multimedia services on their mobiles more frequently. To avoid the foreseen 4G “energy trap” C2POWER project will investigate, develop and demonstrate how cognition and cooperative strategies can be extended to decrease the overall energy consumption 56 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS of mobile devices while still enabling the required performance in terms of QoS. In particular, C2POWER will investigate two complementary techniques to increase power efficiency at the wireless interface of handsets: Cooperative power saving strategies between neighbouring nodes using low power short range communications; Cognitive handover mechanisms to select the Radio Access Technology which has the lowest energy demand in heterogeneous environments. Acron / Ref CADWIN Title Cooperative and Antenna Diversity for Broadband Wireless Networks Funding FCT/PTDC Descript. Wireless services are of great economic and social value and will be one of the enablers of the so-called information society. It is envisioned that among the multiple networks/services that will be part of what is commonly termed as 4G, we will have a broadband component, where spectrum efficiency will be a premium. This means that the terminals/access points will need to explore in a “quasi-optimal” way all the dimensions provided by the space/time and frequency domains of the radio channels. Diversity is inherent and well known in the physical layer and either time, frequency, space has been used to combat the fading by trying to stabilize the channel. Diversity can also be achieved in the MAC or higher layer, which is termed network diversity, which can be divided in multiuser diversity (by scheduling or routing) and cooperative diversity (by cooperative transmission). While research concerning the classical forms of diversity has already taken a very practical flavour with proposals/technological evaluation and integration, the know-how to exploit the benefits brought by the cooperative dimension is still far behind and also the understanding of the impact it may have on wireless network planning. These provided the main impetus for this project proposal whose key objectives are: 57 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Definition, evaluation and validation of techniques exploiting channels diversity and cooperation between users in order to enable the high bit rates targeted in the broadband component of future wireless systems; improve the power and spectrum efficiencies of the existing OFDM-based wireless systems and improving and/or extending coverage and fairness. Most of the research work in this area have assumed dedicated relays (fixed or nomadic), while the CADWIN project will also consider relaying functionalities at the MT. To reach these main goals, specific research objectives are: • Design and evaluation of practical VMIMO or distributed coding algorithms. In a first phase we will start with space-time/frequency block codes designed for co-located antennas, which will be evaluated in a distributed environment. In a second phase, specific and optimized solutions will be proposed and investigated. • Design and evaluation of practical distributed precoding algorithms considering different levels of the channel state information available at the transmitter (BS in the downlink), relay and destination (MT in the Downlink). Precoding algorithms to enable cooperation between base stations to provide intercell interference cancellation will also be considered. • Design and evaluation of joint distributed precoding and spacefrequency/time coding algorithms. In a first phase the concepts of distributed precoding and coding are considered separately, while in a second phase the researchers working on the two topics will consider the optimized joint precoding/coding schemes. • Design and evaluation of channel estimation algorithms. In a first phase we will evaluate the classical channel estimation algorithms in cooperative communications scenario with emphasis on AF relaying protocol. In a second phase, will investigate and evaluate specific algorithms to deal with the issue of estimating non point-to-point channels, present in the envisioned scenarios. Design and optimization of medium access control protocols for centralized and decentralized systems with joint scheduling, relay node selection and dynamic link adaptation. Study and design of systems with imperfect network station information 58 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS and evaluation of signalling resources for setting up cooperative relaying schemes. Development of a system level simulation tool for analysis of a hybrid cellular network incorporating cooperative diversity. Usage of the simulation tool to validate the algorithms developed and demonstrate at a system level the potential of cooperative diversity. Acron / Ref CelCop Title Multicell Cooperation for Future Wireless Systems Funding IT Descript. The main objectives of the project are to design, implement and validate techniques exploring BSs collaboration for future wireless systems. The aim is to design practical multicell transmission and reception techniques to improve the user’s fairness and throughput, namely at the cell-edges. The specific objectives include: • Design multiuser linear precoding techniques for downlink of multicell MIMO-OFDM based networks. • Design multiuser detection techniques for uplink of multicell MIMO SCFDMA based networks. • Assessment and validation of the proposed downlink and uplink algorithms under realist scenarios, trough a link level simulator based on LTE specification. • Development of an FPGA based testing infrastructure allowing to experimentally show the feasibility of the proposed algorithms. Only some selected downlink precoding algorithms will be tested in this infrastructure. • Attract students for a career in R&D in the field of telecommunications. • Promotion of research collaborations between research groups within the Institute for Telecommunications. 59 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref Title COGEU Cognitive radio systems for efficient sharing of TV white spaces in EUropean context Funding EU, FP7 Descript. The complete transition from analogue to the digital TV is planned in Europe for 2012. This will release significant amount of valuable spectrum in VHF/UHF bands. In fact, the Digital TV Switchover provides a “once in a lifetime” opportunity for the development of innovative services and the introduction sophisticated new technologies into the VHF/UHF bands. However, despite the grand words about opening up a new band to support low cost, low power, ubiquitous access and innovative new providers, there are many obstacles to TV white spaces systems. The creation of workable devices that clearly demonstrate and prove that no harmful interference is caused to broadcasters or other licensed systems is one of those challenges as is the completion of standards. The CogEU project aims to take advantage of the transition to digital TV by developing cognitive radio systems that leverage the favourable propagation characteristics of the TVWS through the introduction and promotion of real-time secondary spectrum trading and the creation of new spectrum commons in the upper band of the cleared spectrum. CogEU will also define new methodologies for TVWS equipment certification and compliance addressing coexistence with the DVB-T/H European standard. Three main application scenarios with good market potential will be investigated: Cellular, WiFi and WiMax network extension over TV white spaces Mobile TV over TV white spaces Public safety applications over TVWS 60 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref COMMON Title Coordinated Multiuser MIMO for Future Wireless Networks Funding FCT/PTDC Descript. The aim of the project is to provide a better understanding of multiuser coordinated multiple-input-multiple-output (MIMO) capacity enhancement in the fourth (and future) generation(s) of wireless systems. In fact, the realistic capacity estimation using spatial multiplexing and beamforming MIMO is of great interest, since it represents the enabling technology to achieve the new 4G 5 bit/s/Hz spectral efficiency requirement. MIMO links can offer a so called spatial multiplexing gain by opening parallel spatial data pipes or channels within the same frequency band. This is achieved by the creation of orthogonal information channels mostly in the presence of rich multipath leading to antenna decorrelation. In these conditions, MIMO links offer capacity gains (relatively to SISO) that are proportional to the minimum of either the number of TX and RX antennas. As a matter of fact, a key feature of MIMO is to turn multipath propagation, traditionally a pitfall of wireless systems into a benefit for the user. MIMO takes advantage of random fading, for increasing transfer rates. The proposed work in the project will cross the fields of research of mobility and channel modeling, information theory and practical systems and applications. Firstly, directional channel modeling will be developed in order to simulate the MIMO channel. Secondly, information theory and eigenanalysis based on MIMO spatial multiplexing and beamforming will be used, together with the use of uniform and power efficient allocation methods. Optimized MIMO antenna configurations will be set, in order to boost up cell capacity. Then, the gains of using coordination methods in multiuser scenarios will be considered with applications examples and system performance evaluations over LTE (and LTE Advanced) and mobile WiMAX 802.16 61 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS family of standards radio interfaces. This evaluation will be done considering radio advanced resource management techniques such as improved admission control, power control and scheduling techniques. Acron / Ref COST BM 0704 Title Emerging EMF Technologies and Health Risk Management Funding ESF, COST Descript. The main objective of the Action is to create a structure in which reseachers in the field of EMF and health can share knowledge and information on: 1.How existing EMF technologies change either in their operating characteristics or in novel way sand applications in which they are used. 2. Identifying what entirely new EMF technologies are introduced and on what time-scale. 3. What novel emission and operating characteristics might result and what impact these would have on the device-specific and overall EMF exposure of people. 4. What possible health effects could consequently arise and the scientific evidence for health concerns if any. 5. How such concerns should be addressed through the use of evidencebased information and 6. What tools are effective in communicating and managing such risks and perceived risks. And, effectively publish all such information in the public sector for the benefit of all stakeholders. 62 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref Title Funding Descript. COST2100 Pervasive Mobile & Ambient Wireless Communications ESF, COST The main objective of the Action is to increase knowledge of mobile and wireless network technologies, by exploring and developing new methods, models, techniques, strategies and tools that will facilitate the implementation of next generation mobile radio communication systems and will foster the development of the paradigms of pervasive and ambient wireless communications. Acron / Ref COST-IC1004 Title Cooperative Radio Communications for Green Smart Environments Funding ESF, COST Descript. The main objective of the Action is to increase knowledge of cooperative communications applied to Green Smart Environments, by exploring and developing new methods, models, techniques, strategies and tools. Acron / Ref COST-902 Title Cognitive radio Systems Funding ESF, COST Descript. Study cognitive radio systems Acron / Ref CROWN Title Co-operative Radio over Fibre for Wireless Networks Funding FCT/PTDC Descript. The project activities will encompass the three phases needed for a 63 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS successful demonstration, i.e: •Definition of requirements and scenarios; • Algorithm definition and validation; • Proof of concept. The proof of concept will be done at two levels: At the system level through the integration of the selected algorithms on a network simulator; At the hardware level, though the development of an FPGA based testing infrastructure complemented by the required Radio-Frequency (RF) and optical modules, allowing to experimentally show the feasibility of the architecture and algorithms proposed. The project brings together expertise from the areas of wireless and optical communications, allowing previously untapped synergies between these two areas, and builds up on the experience of the research team in international projects dealing with Radio over Fibre systems. Acron / Ref Title DiRecTRadio All-Digital Reconfigurable System-on-Chip Transmitter for Cognitive Radio Systems Funding IT Descript. In this project the main objective is to study, design, prototype and evaluate innovative System on Chip architectures and synthesizable models for flexible, all-digital and fully integrated transmitters for Cognitive Radio (CR) systems. Building all-digital flexible transmitters requires traversal competences on different areas, namely, reconfigurable digital systems, signal processing and RF design. These areas of expertise are covered by the members of the research team. Our approach to all-digital transmitter design will explore the huge computational power, input/output bandwidth and flexible integration capacity of modern FPGAs in order to build customizable computation and communication architectures as well as the required dynamic 64 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS reconfiguration methodologies that fulfill the transmitters’ flexibility needs for future CR systems. This project will contribute to the state-ofart - of all Advanced digital digital transmitters signal shaping in several techniques aspects, and namely: corresponding implementation circuits that allow a fully FPGA-based flexible processing of high bandwidth signals. - Novel baseband to RF up-conversion techniques and corresponding fully integrated FPGA-based realization circuits that allow using flexible hardware modules for configurable and simultaneous multi-band and multi-standard operation. - Tight integration of signal shaping and up-conversion techniques with FPGA-based baseband processing engines for high throughput, low latency and fast reconfiguration times. Acron / Ref Digital_PAs Title Digital_PAs - Digital RF Power Amplifiers for Wireless Applications Funding FCT/PTDC Descript. The main objective of this project is to study the feasibility of incorporating digital techniques in wireless power amplifiers. For that, it will address both the system level concepts of transmitter architectures as the Polar, Cartesian and the LINC; and the implementation level of switching RF power amplifiers and their bias modulation control. So, this objective can be decomposed into: 1 - Investigate non-conventional wireless power amplifier and transmitter architectures that can bypass the traditional compromise between power added efficiency, efficient spectral usage and linearity. 2 - Identify the practical limits of biasmodulated digital power amplifiers in Cartesian and Polar transmitters in terms of (i) requirements imposed on the RF power devices by biasmodulated switching operation (ii) parasitic AM-to-PM modulation, (iii) class-D AM amplifier bandwidth, (iv) zero bias RF carrier leakage (zeroAM off-set), (v) AM envelope modulation linearity and (vi) time-delay 65 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS mismatch between the AM and PM modulation paths. Acron / Ref Title DOLPHIN Development of Pre-operational Services for Highly Innovative Maritime Surveillance Capabilities Funding EU, FP7 Descript. DOLPHIN aims at developing new tools providing effective improvements of the state of art capabilities in Maritime Surveillance with respect to users’ needs, in particular by filling present Technological Gaps and by developing new algorithms and Decision Support Modules. Acron / Ref EARTH Title Energy Aware Radio and NeTwork TecHnologies Funding ICT Programme (European Commission) Descript. The goal of the project is to address the global environmental challenge by investigating and proposing effective mechanisms to drastically reduce energy wastage and improve energy efficiency of mobile broadband communication systems, without compromising users perceived “quality” of service and system capacity. Acron / Ref GREENET Title An early stage training network in enabling technologies for GREEN radio Funding FP7 Descript. Current 4G vision envisages higher data rates and multi standard radio interfaces to provide all users with a continuous seamless connection. The large number of foreseen devices coupled with the surge in power requirements for future emerging handsets raises significant challenges 66 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS in terms of: i) reducing the energy consumption; and ii) reducing the amount of electromagnetic radiations. GREENET targets the following main objectives: 1. Recruitment of ESRs with the clear and long-term objective to conduct top-notch research and to pursue research excellence at the national, European, and international levels. 2. Develop training and career plans that are personalized as possible to meet the needs and desires of each ESR. 3. To allow the ESRs to understand and address key research challenges on energy efficient GREENET communications, that form pivotal societal and economic concerns for Europe within the mid-to-long term. 4. Offer to each ESR top-level training and research programs with the twofold objective to reinforce and corroborate their own background, as well as to complement this with active participation in a multidisciplinary network of research scientists. 5. Complement the typical competences of “applied research” with aspects related to project management, intellectual property rights, writing of patents, presentation and communication skills, writing of technical papers, exploitation of technical results and creation of start-up companies, etc. 6. Guide and help the ESRs to build the bridge from academia to a remarkable and untactful professional career in either private or public sectors. Acron / Ref GreenTel Title GreenTel Funding PT-Inovação Descript. Study of Energy efficient RF Systems 67 the ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref Title INSHORE Integrated System for High Operational Resolution in Shore Monitorization Funding FCT/PTDC Descript. The main goal of this project is to develop methodologies to large scale morphologic and sedimentary survey of sandy beaches. These methodologies are based on the use of satellite and digital image technologies to perform efficient monitoring programs. Specific objectives of this project are: 1) Development of a low cost and high resolution GPS prototype system, to be mounted on a land vehicle, appropriate for driving in sand. This system will allow an efficient morphologic survey of sandy beaches stretches with tens of kilometres, from which it is possible to build 3D digital elevation models and to characterise the main morphological features. 2) Development of a digital image prototype system for an automatic beach sand textural analysis. This system, when incorporated in a land vehicle and integrated with the GPS based system, will permit a georeferenced real-time grain size quantification of a great number of samples along a sector under study. 3) Development of a morphodynamic model of a sandy beach sector with 65 kilometres of extension, which will work as a predictive tool regarding natural and human induced impacts. Acron / Ref Headway Title DSRC 5,9GHz Funding BIT Descript. Develop a DSCR 5,9GHz (Layers PHY & MAC) transceiver, FPGA based 68 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref META-ID Title Spatially confined RFID detection with a metamaterial grid Funding IT Descript. To use metamaterials to confine the detection of UHF RFID systems to a desired volumetric region of space, and prevent in this manner unwanted detections of nearby tags. Acron / Ref MISC Title MISC - Massive Information Scavenging with Intelligent Transportation Systems Funding FCT/MIT Descript. The MISC project has the following key objectives: - Scientific goals: devise adequate models for network information flow in vehicular networks and urban environments; quantify the benefits of network coding for massive data gathering; characterize human stress in traffic situations; provide solid guidelines for the design secure and dependable system architectures; - Technical leverage goals: Develop geographic secure network positioning coding information to protocols that bring the right information to the right place at the right time; combine real-time biomedical signals with vehicle and urban context information; - Social-economic goals: increase the safety and efficiency of public transportation systems and road networks by means of massive data gathering FCT : PROJECTOS DE INVESTIGAÇÃO CIENTÍFICA E DESENVO... http://concursos.fct.mctes.pt/projectos/index.asp?area=9&pid=83944 9 of 12 15-10-2008 15:52 - technology; transfer technology to local and global companies. - Education goals: attract the brightest students for a career in R&D, use the developed data gathering tools for lab training, adopt some of 69 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS MIT’sbest practices. Acron / Ref MOBILIA Title MOBILIA Funding PO Centro Descript. MOBILIA project targets ITU IMT-advanced requirements for future wireless systems, i.e. peak data rates of 100 Mbps for mobile applications and 1 Gbps for low mobility. The IMT-advanced vision of future network as being formed of interworking access systems will also be considered. A derived target is to obtain an increased aggregate throughput/ user satisfaction vs. existing systems. MOBILIA will address these various challenges, mainly in the context of WiMAX, covering, at least, IEEE802.16m, 802.16j and beyond. Other complementary technologies will be also analyzed, e.g. WiFi to perform relaying in the framework of IEEE 802.16e. Acron / Ref MONIT Title Monitoring of Electromagnetic Radiation in Mobile Communications Funding Optimus, TMN, Vodafone Descript. Main objectives: To provide ''public awareness'' information about exposure to radiofrequency electromagnetic wave radiation. To perform a systematic monitoring of electromagnetic radiation level near mobile communications base station sites all over the country, and to share these results through a dedicated website. 70 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref MPSat Title Multi-Packet Detection Techniques for Satellite Networks Funding FCT/PTDC Descript. Future satellite communications systems face a challenge to provide higher bitrates, together with improved QoS (quality of service) guarantees, to more GT (ground terminals). Moreover, this should be achieved with higher spectral and power efficiencies, with less energy. This project considers future very high bitrate LEO (Low Earth Orbit) satellite systems with satellite MPR (multipacket reception), compatible with low-cost portable GTs. A cross-layered approach is proposed: a physical layer team will handle the signal design, the synchronization and estimation issues, and the receiver design, including MPR development; a data link layer team will handle the Multiple Access control protocol design and the scheduling algorithm to support different QoS (Quality of Service) classes, and the interaction with the network layers. Both teams will be involved in the design and test of the crosslayering features involving both layers, required to provide guaranteed QoS, even during satellite handover. In this project we will develop OQPSK-type schemes with reduced envelope fluctuations and high power and spectral efficiencies and compatible with an efficient and low cost power amplification. To further improve the overall system power efficiency we also consider schemes with spectral overlapping between different frequency channels. With respect to the receiver design, the main goal is an efficient multipacket detection technique able to cope with collisions, already shown by the research team to allow significant improvements in personal area networks. We will consider turbo frequency-domain equalizers suitable to cope with time-dispersion effects and able to handle spectral overlapping between frequency channels. Hybrid ARQ/FEC (Automatic Repeat reQuest/Forward Error Correction), namely with packet combining, will be proposed to handle fading for the most demanding QoS classes and control packets. To cope with Doppler effects, suitable synchronization and channel estimation methods will be developed for MPR on a LEO 71 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS scenario. Joint detection and estimation schemes will be considered. Since MPR needs to know which users are involved in a collision, suitable methods to detect them will be developed. The statistical characterization of block error rates with MPR will be evaluated using simulations for homogenous and heterogeneous SNR GTs. We will develop a new MAC protocols for MPR that combine random access with demand assigned access on the uplink controlled by a downlink control channel, offering improved QoS support compared to other LEO MAC protocols. Acron / Ref NAGCPS Title Navigation Algorithms for GNSS-based Coordinated Positioning Systems Funding FCT/PTDC Descript. The applied research addressed by the proposed project is focused on the development and evaluation of algorithms and estimators in the context of navigation and coordinated positioning. Acron / Ref Napis Title NAPIS - NAvy Positioning and Identification Systems Funding Marinha Portuguesa Descript. Design location systems for personal use. Acron / Ref Title NEWFOCUS New Fromtiers im mm/sub-mm waves integrated dielectric focusing systems Funding ESF, PESC Descript. • Development of advanced analytical and numerical modelling 72 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS techniques in electromagnetic theory using complementary formulations for the analysis, synthesis and optimisation of integrated dielectric focusing systems Implementation Benchmarking of powerful measurement computer-aided-design facilities at mm and tools submm wavelengths Promotion of research mobility Acron / Ref Nonlocal Title Non-local Metamaterials and Applications Funding FCT/PTDC Descript. Design of low-loss materials with anomalous dispersion. • Demonstration of broadband negative refraction a partial focusing using nonlocal metamaterials. • Realization of ultra-subwavelength waveguides. • Realization of absorbing metamaterials with enhanced properties. Acron / Ref NRT Title NATO SET-ET-066 - Multifunction Noise Radar Funding Marinha Portuguesa Descript. The main objective is to assess the applicability of Noise Radar Technology and related technologies for design of future military MFR and MFR Networks. A second objective is to indicate the main advances and the priorities for future efforts. New concepts and promising applications should be tested by participating laboratories. The test results will be analyzed, discussed and evaluated by the Task Group for inclusion in the final report. 73 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref Title OPPORTUNISTIC-CR Opportunistic Aggregation of Spectrum and Cognitive Radios: Consequences on Public Policies Funding FCT/PTDC Descript. Networks of the future are tending towards a diverse wireless networking world, where scenarios define that the end-user will be able to attain any service, at any time on effectively any network that is optimized for the application at hand resulting in “flexibility and choice” to enhance the quality of life of the individual, in a context of seamless interoperability and cognitive radio between network operators and access technologies, complemented by a business exploitation strategy that adapts to future economic infrastructures. Advanced algorithms for multi-band access/selection will be explored to optimize the offered capacity whilst maintaining the user service experience acceptable. Also secondary users may have temporary opportunistic access to free spectrum ''holes'' or a set of users may simultaneously utilize, optionally, spectrum resources in lower/upper frequency bands, improving the quality of experience. The consequences of this new perspective for spectrum management in public policies will be addressed as well as the impact of having secondary spectrum markets. From the technical point of view, modeling, simulation and experimental approaches will be followed, e.g., by using emulators with a hardware component within academic and/or industrial partnerships to be developed. Spectrum usage optimization is one of the goals of our Project, fig. in Annex. The opportunistic utilization of spectrum holes by secondary users will be investigated by implementing novel MAC designs regarding sensing cooperation and opportunistic transmission that will use cross layer and cross system information. Another objective is to attend to the increasing demand of higher data rates. Spectrum aggregation (SA) is a technique that attempts to increase spectrum utilization and it is therefore a coming solution to support the 100 MB/S over a wireless connection. After World Radiocommunication Conference 74 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 2007 (WRC07) the new bands to be considered for International Mobile Telecommunications - Advanced (IMT-Advanced) were 450-470, 698862, 790-862, 2300-2400, 3400-4200 and 4400-4990 MHz. In order to support the increasing demand of high data rates bandwidths of 100MHz have to be considered. These bandwidths can only be achieved by going to high frequencies. The drawback of going into high frequencies is the high propagation losses and the Doppler Effect on high velocities. Multi-hop and Infrastructural users will be managed by a Multiband Common Radio Resource Management (MB-CRRM) entity. This management will be direct in the Infrastructural case scheduling user/group of users in a given frequency and indirect in the multi-hop case (secondary users) by demanding or leaving a control channels open for secondary user coordination and taxation. The management of secondary users will be performed by making hopping frequency directives so that a dynamic coordinated secondary use of the spectrum can be made. The MB-CRRM has the ability to optimize frequency scheduling for infrastructural users, and also frequency scheduling for secondary usage. While each system maintains control over his RRM entity, including the distributed secondary system, the MB-CRRM entity will make them more dynamic radio wise. A wide and local MB-CRRM optimization could be differentiated. By wide MB-CRRM it is meant frequency planning for all the systems being considered in a given area considering several base stations (BSs). Acron / Ref Title PLANOPTI Planning and Optimization for the Coexistence of Mobile and Wireless Networks Towards Long Term Evolution Funding EU, FP7 Descript. This proposal addresses a research programme and a series of initiatives on next generation mobile networks in a context of coexistence to be developed in the Instituto de Telecomunicações/Universidade da Beira 75 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Interior. Networks of the future are tending towards a diverse wireless networking world, where scenarios define that the end-user will be able to attain any service, at any time on effectively any network that is optimised for the application at hand resulting in “flexibility and choice” to enhance the quality of life of the individual, in a context of seamless interoperability between network operators and access technologies, complemented by a business exploitation strategy that adapts to future economic infrastructures. The economic vision targets a converged network and service infrastructure for communication, computing and media applications that will create new market opportunities for 3rd party service providers. The drive for ubiquitous, cost-effective communication in unison with new service provisioning opportunities provided the impetus for the OPTIMOBLE proposal. It intends to design, implement and demonstrate “cooperative networking and optimisation strategies” for next generation networks that will provide a significant step towards environment. network convergence Cooperative-common in radio a truly resource heterogeneous management strategies are considered, assisted by context-aware information (e.g., positioning) for maximising network utility and QoS delivery, and by incorporating ad-hoc relaying and mesh networking mechanisms to ensure virtually collocated heterogeneous systems and coverage. These visions will be complemented by a business feasibility study, and will include innovative graphical cellular planning tools. Acron / Ref Title PROENERGY-WSN Prototypes for Efficient Energy Self-sustainable Wireless Sensor for Efficient Energy Self-sustainable Wireless Sensor Networks Funding FCT/PTDC Descript. Prototypes Networks. 76 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref PANORAMA Title Plataforma Rádio Funding QREN, PT-Inovação Descript. O projecto Panorama é um projecto em co-promoção em que são parceiros o Instituto de Telecomunicações e a Portugal Telecom Inovação, S.A. (PT Inovação) promotora do projecto. Como projecto de I&DT inclui actividades de investigação industrial e desenvolvimento experimental cujo objectivo é desenvolver plataformas ópticas e wireless avançadas para redes metro, acesso e core com gestão integrada, capazes de competir no mercado internacional e projectar neste mercado tecnologia que “fala” Português. A participação do IT neste projecto insere-se âmbito da sua função de criar e disseminar conhecimento no domínio das telecomunicações. O IT disponibiliza ao projecto Panorama o conhecimento de ponta nas áreas das microondas, comunicações ópticas e redes de telecomunicações, contribuição importante para que seja criada uma solução integrada e inovadora para as redes de acesso, metro e core. A PT Inovação, como âncora tecnológica e o centro de excelência do Grupo PT, introduz no projecto o conhecimento dos requisitos de mercado a par da sua experiência de investigação industrial e desenvolvimento de soluções de telecomunicações. O projecto é uma iniciativa QREN, do financiamento UE/FEDER através do COMPETE – Programa Operacional factores de Competitividade. O investimento elegível do projecto é de 3.053.370 € a que corresponde um incentivo de 1.807.737 €. O projecto foi iniciado em Março de 2009 e terá a duração de 27 meses. O objectivo global do projecto PANORAMA é o desenvolvimento de um Sistema de Telecomunicações sustentado em Plataformas Ópticas e de Rádio Avançadas com gestão integrada. Será concretizado com a implementação de: - Plataformas Ópticas Avançadas 77 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Plataformas Rádio - Plataformas de Routing IP/MPLS - Soluções Residenciais Nestas plataformas serão integradas as funções de suporte: - Gestão de Rede e Serviços - Gestão Automatizada Distribuída - Segurança - QoS (Quality of Service), Probing e Módulos Protocolares em resultado de actividades transversais a todas as plataformas. Acron / Ref PEACE Title IP-Based Emergency Applications and Services for Next Generation Networks Funding EU, FP7-ICT Descript. Design and Specification of Next Generation Emergency Communication System Specify a general all-IP IMS-based emergency management architecture − Investigate and provide solutions for supporting daily emergency communication basedon IP protocols. - Specify and integrate mechanisms for user and device location in Next Generation Networks. - Specify a representation of emergency numbers in IMS and its mapping to PSTN - Extend IMS with mechanisms for indication of location and emergency numbers - Support ad-hoc communication in a secure manner. 78 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Acron / Ref QOSMOS Title Quality of Service for Mobile Opportunistic Systems Funding EU, FP7 Descript. Develop algorithms and protocols for CR Acron / Ref RFID-Local Title Advanced Antennas for Radio Frequency Identification and Localization Funding FTC/PTDC Descript. 1. Extension of previous work from this team on UHF RFID antennas for smart storeware, to replace or complement current optical bar code solutions, with the added value of enabling automation. 2. Design of dedicated UHF RFID passive tags for application on specific type of objects to enhance its detection, considering omnidirectionality, size, read range and sensitivity to nearby objects. Commercially available passive chips will be integrated into the developed prototypes. 3. Development of antennas for a new generation of ultra wideband impulse radio (IR-UWB) RFID technology at microwaves (3 to 10 GHz). Studies will explore the use of these tags for precise indoor location applications; this includes the development of a demonstration test bed. Acron / Ref SAIL Title Scalable & Adaptive Internet soLutions Funding ICT Programme (European Commission) Descript. SAIL will both design technologies for the Networks of the Future and develop techniques to transition from today’s networks to such future concepts. SAIL leverages state-of-the-art architectures and technologies, extends them as needed, and integrates them. SAIL uses experimentally-driven research, building prototypes that will proof the 79 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS advantages in concrete use cases. Acron / Ref Title SiMTraMil Silicon Monolithic Transceiver for Portable Communication Systems in Millimetre Wave Funding FCT/PTDC Descript. The final goals are to design and test a single chip millimetre wave receiver and the key component of the transmitter (power amplifier) with the same technology Distribution for a Systems) 30GHz LMDS (Local transceiver. Multipoint Since, when needed, passive and active improved components models will be developed during the project and they will be valid for higher frequencies. As a secondary goal we will study by simulations the performance of key components of a future 60GHz WLAN (wireless local area network) system receiver with SiGe technologies (LNA, down converter and VCO) and CMOS up to 30GHz. Acron / Ref SOPAS Title Self-Oscillating Radio Frequency Power Amplifiers Funding FCT/PTDC Descript. This project is aimed at the design and test of an innovative RF Self-Oscillating Power Amplifier (SOPA) in which the feedback loop is not made at the RF carrier, as in the usual approach, but now between the output signal envelope and the input baseband signal. This topology is a novel, and very promising, approach to the linearity/efficiency compromise in RF transmitters as it is capable of greatly reducing switching losses but also compensate for the nonlinearities of the AM and PM modulator, of the RF PA and of the output band-pass reconstruction filter. Furthermore, the complex stability and ultimate injection locked behavior analysis of these SOPA 80 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS structures (which is a determinant problem for any highly nonlinear dynamic feedback loop) will be thoroughly performed through bifurcation analysis across input envelope amplitude. In addition, this new SOPA based Tx architecture, but also many other coming digital Tx’s, suffer from the inexistence of proper simulation tools. As they involve baseband AM and PM signals, a digital self-oscillating clock and a RF carrier - of three disparate time-scales - exciting strongly nonlinear lowfrequency broadband but also RF narrow-band circuits, no circuit simulation tool is able to handle it. So state-of-the-art simulation techniques for systems with autonomous components (as is the case of SOPAs) will be studied. In summary, the expected results from this project are: (i) system-level analysis of SOPA behavior, its stability and injection locking conditions; (ii) the design, implementation, test and validation of a novel, highly efficient and linear, SOPA based Tx topology; and (iii) a new simulation method dedicated to device-level simulation of SOPA circuits (or circuits that suffer from similar multirate problems). Acron / Ref SARMonitor Title Civil Traffic Monitoring Using SAR Funding FCT/PTDC Descript. The goal of this project is to develop techniques for spaceborne SAR platforms to automatically extract the parameters of interest for civil traffic monitoring and planning at a continental scale. We also intend to develop a PC application to demonstrate the feasability of traffic monitoring from space borne SAR. Acron / Ref SATSON Title Vehicles velocity estimation and classification in free flow environments Funding BRISA 81 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Descript. Vehicles velocity estimation and classification in free flow environments Acron / Ref TACCS Title Cognitive Radios Adaptable Wireless Transceivers Funding FCT/PTDC Descript. Software Defined Radio has already start its way to conquer traditional radio configurations, by moving base band (de)modulators completely to the digital world and thus implementing it by software. Nevertheless, it is expected that Cognitive Radio, CR, will be the next frontier in terms of radio architecture design, in fact the new paradigm that CR can bring to traditional ways to think on radio architectures, is so huge, as it was the transition from Analog to Digital systems. CR will allow the optimization of radio spectra occupancy, but also the implementation of the supreme universal radio, that is radios that talk to each other’s no matter the original implementation. But in order to achieve such a new deployment, the radio should be constructed with some form of processing capabilities, which it is not possible with traditional schemes, that processing capabilities arises from some kind of processor that treats the transmitted/received signal in real time, and makes decisions over it. That processing capabilities should be done at the digital counterpart, but also, and most of the time neglected, at the analog part. In fact the main conclusion of the last SDR forum meeting was that the analog part, usually called agile radios, should have a huge research effort in order to implement most of the CR concepts. This project aims exactly to study most of the physical layers of CR, starting from agile implementations, RF either front ends, FPGA but based, also but considering also DSP digital based. The project will try to give an answer to software engineers, by carefully studying the last piece of the system that is avoiding the complete implementation of CR. The main difficulty of implementing 82 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS these CR architectures is the non-ideal behavior of the analog components, due mainly to bandwidth limitations, and to signal amplitude limitations, dynamic range, by creating nonlinear distortion that severely degrades SNR. Thus the correct identification of the system components behavior, that is nonlinear dynamic models, the correct understanding of the new waveform behaviors, which will be created in the CR approaches, will allow the correct design of the transmitted signal. This signal should be pre-distorted in order to be transmitted with perfect spectrum masks, but the received signal should also be compensated either by overcoming the non-idealities of the receiver components but also by reducing interference distortion due to the existence of jammers outside the band. Thus the now proposed work will make new contributions on (1) behavior models for non-ideal analog RF components; (2) new signal identification methods, either for evaluation of the analog needs at transmission or at receivers, but also for spectrum sensing; (3) new waveform generation for CR applications, in order to maximize the SNR, but also for maximize the transmitted bit rate; (4) new design of reconfigurable architectures based on FPGA, for efficient CR implementation; (5) improved receivers for spectrum sensing sub-systems by maximizing the gathering of large bandwidths; (6) new improved receivers for maximization of dynamic range; and finally (7) new transmitters for linear and high efficient signal communications. The proponent team is composed of a number of different knowledgeable elements, coordinated by a senior researcher of IT with previous international and recognized work on nonlinear distortion modelling, RF circuit/system design and SDR system implementation. For signal processing capabilities the team has two researchers with very important achievements in the area of Sampling Theory and Signal Reconstruction, plus a researcher with knowledge hardware on FPGA-based accelerators, digital reconfigurable systems architectures modeling, simulation and and synthesis. The team is complemented by the work of three PhD students that are working in these fields, and we hope to have the help of two “bolseiros” that will assist in the simulation, 83 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS laboratorial measurements, and design of most of the new proposed CR architectures. Moreover there is no other Portuguese research team working in this new emergent systems and applied future to area SDR of communication and CR RF circuits front and ends. These team combined with the new ideas will allow the proposed project to give a step further in the state of art in the area of agile RF front ends for CR implementations. Acron / Ref Title TERRA Techno-Economic Regulatory Framework for Radio Spectrum Access for Cognitive Radio/Software Defined Radio Funding ESF, COST Descript. The main objective of this Action is to develop a comprehensive technoeconomic regulatory framework of radio spectrum access rules for CR/SDR-based wireless applications, catering for envisaged CR/SDR deployment scenarios and shown to benefit most optimally the development of the wireless industries and consumer interests at large. Furthermore, the Action will provide assistance to European administrations in formulating a European position on radio spectrum access rules for CR/SDR applications. This Action will establish a multidisciplinary European forum focused on coordinating techno-economic studies for the development of a harmonised European regulatory framework to deployment facilitate of Cognitive the advancement Radio/Software and broad Defined commercial Radio (CR/SDR) systems. The Action will leverage on results and experiences from national and international research initiatives and early standard-setting activities by recommending sound regulatory policies that would facilitate fastest possible uptake and proliferation of CR/SDR. The need for this Action has been supported by European regulators in the European Conference of Postal and Telecommunications Administrations (CEPT). They stated willingness to use the results of the Action in their work on developing the harmonised European regulatory regime for 84 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS CR/SDR. Very conveniently, proposals elaborated by the Action could also be used as a part of European contributions to the forthcoming World Radiocommunications Conference in 2012, which has CR/SDR regulatory policy on its agenda. Working towards that objective, TERRA will structure its activities in the following clusters: research into development of plausible deployment scenarios for CR/SDR, based on results of current and future technological R&D activities, research into what regulations would be technically feasible, research into what regulatory regime would be economically attractive, research into overall impact assessment and societal benefits of developed regulatory scenarios. Acron / Ref WHERE2 Title Wireless Hybrid Enhanced Mobile Radio Estimators 2 Funding EU, FP7 Descript. Improving Positioning: Enable indoor terminal location with an accuracy at least equivalent to that of outdoor GPS, by combining & extending distributed techniques into the new dynamic heterogeneous and cooperative scenario gain wireless Improving Communications: Quantify geo-location-based cooperation in communications in terms of throughput, reliability, power consumption, complexity and security. Realization: Developing integrated hardware platform to confirm performance and feasibility of cooperative positioning and communications algorithms by trials. 85 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.5 Running and Concluded Theses MSc Theses Supervisor Student Rafael Edmundo Monteiro Caldeirinha Pedro Renato Filipe Nogueira Tavares Pinho Silva António Miguel Carlos Cardoso Castanheira Fernandes Almeida Pedro Miguel Carlos Cardoso Araujo Ambrosio Fernandes Alvares Serrao João Francisco Filipe Andre Cordeiro de Sampaio Ribeiro Oliveira Barros Co- Supervisors Title Industrial placement - MCEL, Mozambique Antenas para sistemas de localização End Date 2/2011 3/2011 Jorge Rodrigues da Costa Efficiency Measurement of Broadband Antennas 3/2011 Jorge Rodrigues da Costa Transparent Antennas for Advanced RFID Applications 3/2011 Ana Cristina Costa Aguiar Wireless Communication in Vehicular Networks 3/2011 Advanced Transmitter/Receiver Schemes for Future Wireless Networks Colonic polyp detection from capsule endoscopy data Amplificadores de Potência de Rádio Frequência AutoOscilantes Circuits development for wireless transceivers Design, simulation and fabrication of an invisibility cloaking and other artificial electromagnetic materials Implementação de um Sistema de Comunicações Móveis de 4G para o Uplink Nuno Souto João Conduto José Bioucas Dias Ricardo Cotilho Mário Figueiredo Pedro Miguel Cabral Manuel Joaquim Campos Mendes Nunes Duarte José Carlos Pedro João Vaz Vitor Canosa Marco Alexandre Ribeiro Bruno Miguel Freire Mendes Adão Silva Paulo Serralheiro Jorge Rodrigues da Costa João Sena Marcos Mário Silveirinha Medição do campo próximo de antenas e outras estruturas 7/2011 Adão Silva Vasco Miguel Barroso da Silveira Atiqur Rahman e Carvalho Técnicas de Cooperação entre Estações Base para Sistemas Celulares de Portadora Múltipla 7/2011 Telmo Reis Cunha Marcin Janiszewski Audio Effects Unit 9/2011 Pedro Vieira André Martins Pedro Vieira Nuno Paes Jorge António Alves Raul Lourenço Moreira Machado João Vaz Marco António da Mota Carvalho Silva Pereira Atílio Gameiro 6/2011 6/2011 7/2011 7/2011 7/2011 7/2011 Aumento de Capacidade em Sistemas MIMO Coordenados 9/2011 Multi-utilizador para Advanced LTE Desenvolvimento de Metodologia e Projecto de Sistemas de 4ª 9/2011 geração Móvel no Interior de Edifícios Detecção e Identificação Pessoal Automática por RFID nos Navios 9/2011 da Marinha Monolithic Power Amplifier in 0.13um CMOS for WLAN Applications 9/2011 86 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student Pedro Vieira Marco Carvalho António Rodrigues João Filipe Elói Aleluia Carrasco Gonçalves Ana Cristina Costa Aguiar Carlos Pereira Telmo Reis Cunha Krzysztof Stelmachowski Co- Supervisors Planeamento e Optimização em Redes Celulares Móveis AutoGeridas assentes em LTE Maria Paula Queluz António Rodrigues Ana Catarina Caniço Cruz Carlos Cardoso Fernandes Mariana Cascalheira Pedro Renato Tavares Pinho António Nanfade Diogo Ribeiro Wonhoon Jang Diana João Nuno Matos João António Mouro Mestre Luís M. Correia João Pinto Fernando Nunes Hugo José Dias Lopes Fernando J. Velez Helder Roberto Rodrigues Alves Álvaro Henrique C. Gomes Luís M. Correia Pedro Carreira Luís M. Correia Tiago Gonçalves António Rodrigues Pedro José Pinheiro de Almeida Alvarez Fernando Nunes André Filipe Sérgio da Silva Advanced Performance Analysis of GSM and UMTS Radio Networks Antenas de banda-dupla para sistemas de localização em interiores Antenas for Location Location systems using Android phones Modelos de Extensão de cobertura para LTE Carlos Pereira José Sanguino End Date 9/2011 Simulator-based performance evaluation of LTE and LTE9/2011 Advanced Successive Interference Cancellation in Vehicular Networks to Relieve the Negative 9/2011 Impact of the Hidden Node Problem Wireless Audio Unit Luís M. Correia Vasco Fradinho Jorge Rodrigues da Costa Nuno Borges Carvalho Nuno Borges Carvalho Américo Correia Nuno Borges Carvalho Nuno Borges Carvalho Title SDR Instrumentation Super Caps for Energy Harvesting Adaptive Flexible Spectrum Usage Algorithms in Heterogeneous Cell Deployment Assessment and Design of Multilateration Telecommunication Systems installed in NAV Attitude Determination of Highly Dynamic Fixed-wing UAVs Cognitive Radio Systems for the Efficient Sharing of TV White Spaces with LTE 9/2011 10/2011 10/2011 10/2011 10/2011 10/2011 10/2011 10/2011 11/2011 11/2011 11/2011 11/2011 Data Rate Performance Gains in UMTS Evolution to LTE at the Cellular Level 11/2011 Energy efficient solutions based on beamforming for UMTS and LTE 11/2011 Experimental Study on Spectrum 11/2011 Sensing for Cognitive Radio Networks Impact Analysis of the Galileo System Deployment 11/2011 87 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student Co- Supervisors Title End Date 11/2011 João Vaz Paulo Gomes Monolithic Power Combiners in CMOS technologies for WLAN applications Fernando Nunes Afonso Rodrigues Gonçalves Navegação e Determinação de 11/2011 Atitude em Aeronaves Através de Múltiplos Receptores GNSS Performance Evaluation of 11/2011 UMTS/HSPA+ Data Transmission for Indoor Coverage Luís M. Correia Ricardo Batista Rafael Caldeirinha Filipe Marques Raimundo João Carlos Silva Antero Correia Luís M. Correia Pedro Tareco José Sanguino Tiago Vicente Berlinga de Almeida dos Santos Barroso Sistema de Comunicação entre 11/2011 Pedro Amado Assunção, Veículos com Integração Luis Conde Bento Sensorial Synchronization for FDE systems 11/2011 using Orthogonal Sequences WiMAX Capacity vs. Channel 11/2011 Bandwidth António Rodrigues Development of a Firefighting Coordination Positioning Framework Susana Mota Energy efficient solutions in 12/2011 GSM/UMTS based on traffic profiling models Estudo exploratório da 12/2011 informação espacial-temporal do canal rádio 12/2011 Implementação de um sistema MIMO em FPGA Luís M. Correia Digo Silva Armando Rocha Miriam Martinez Baez Jorge Tiago Pedro Renato Pereira Mogas da Tavares Pinho Silva 12/2011 Pseudorandom sequence 12/2011 performance of a nonlinear CDMA system Armando Marco André Receptor de propagação para 12/2011 José Carlos Neves Rocha Almeida Sousa satélite Alphasat Arnaldo Silva Rodrigues 12/2011 João Nuno Diogo José Simões SDR emitter applied to DSRC de Oliveira, Ricardo Matos Mrtins communications Matos Abreu Arnaldo Silva Rodrigues 12/2011 João Nuno Pedro Filipe Vieira SDR receiver applied to DSRC de Oliveira, Ricardo Matos Rito communications Matos Abreu Armando José António Sistema Multi-Antena para 12/2011 Susana Mota Rocha Negro Medição Canal Rádio Direccional Francisco Miguel Viegas da 12/2011 Pedro Amaro Sebastião Smart Link Planning Tool Cercas Costa Rafael Performance Optimisation in 3D 2/2012 Tiago Figueirinha Telmo Fernandes Caldeirinha TV Broadcasting Services Francisco Gonçalo Jorge Propagation model generalization 2/2012 Pedro Amaro Sebastião Cercas Domingues Bastos including tunels (co-supervision) João Costa Monolithic Active Inductors in Joaquim Ferreira Jorge Paulo Alves Torres 3/2012 Freire Silicon António Duarte Garrido Telecommunications market 4/2012 Rodrigues Gameiro characterization Ricardo João do Aircraft Automatic Positioning José Sanguino António Rodrigues 5/2012 Carmo Plácido Transponder System Carlos Cardoso Jorge Rodrigues da Antenas impressas com tintas Luís Almeida 5/2012 Fernandes Costa orgânicas para RFID passivo Francisco Cercas Ângelo Tomé Penha da Luz Rui Miguel Henriques Dias Morgado Dinis 88 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student Co- Supervisors Carlos Cardoso Valter Santos Fernandes Matos Jorge Rodrigues da Costa Carlos Cardoso Nuno Santos Fernandes Jorge Rodrigues da Costa Carlos Cardoso André Generoso Fernandes Santiago Jorge Rodrigues da Costa José Sanguino Nizar Venturini Ricardo Jorge Fernandes Chaves José Sanguino Nelson Flavio de Cintra Correia António Rodrigues José Sanguino Filipe de Oliveira Salgueiro António Rodrigues José Sanguino João Miguel Mendes Cóias Paulo Oliveira Rafael Caldeirinha Nuno Leonor Telmo Fernandes Pedro Amaro Sebastião Carlos Lima Francisco Cercas José Carlos Pedro Filipe Miguel Esturrenho Barradas Pedro Miguel Cabral Nuno Souto João Pedro Horta Simões Armando Rocha Marco Alexandre Ribeiro Pedro Miguel Lavrador Flávio Silvestre Carlos Diogo Baptista Duque Nuno Oliveira Title End Date Antenas para a nova geração de sistemas UWB-RFID 5/2012 Antenas para auto-confinamento da detecção em aplicações UHFRFID Antenas para redes de sensores corporais Autonomous system for track athletics guidance for the visual impaired Distributed Remote Tracking and Surveillance for Covert Operations Evaluation of GPS Receiver Autonomous Integrity Monitoring Algorithms Navegação Descentralizada de Formações de Aeronaves com Redes de Telecomunicações 5/2012 5/2012 5/2012 5/2012 5/2012 5/2012 A ray tracing based model using point scatterers for doubly 7/2012 selective radio channels Application for Remote Piloted Semi-Autonomous Aerial 7/2012 Surveillance System Using Terrestrial Wireless Networks Using Android Software Circuitos Electrónicos Baseados em Dispositivos Paramétricos 7/2012 Design and Implementation of an Energy Efficient Wireless Sensor 7/2012 Network for Building/Home Automation Arnaldo Silva Rodrigues Detector Digital Síncrono de Sinal de Oliveira CW baseado em FPGA 7/2012 Domotic interaction with the Nuno Souto human brain using EEG 7/2012 thecnologies Efficient Amplification in MultiStandard Wireless Networks 7/2012 Estimativa das Contribuições de Jose Neves Chuva e Gelo na Despolarização 7/2012 Terra-Satélite Implementation of sub-urban radio coverage prediction 7/2012 methods using GIS Armando Rocha ´Flávio Miguel da Silva Jorge Luís Cruz João Tiago dos Santos Martins Luís Cruz David Marques Implementation of urban radio coverage prediction methods using GIS 7/2012 António Topa Pedro Miguel Elói Aleluia Carrasco Gonçalves Pulse propagation in fiber optics 7/2012 Nuno Souto Diogo Filipe Ferreira das Neves Reliable Monitoring and Control of Home/Building appliances using a Wireless Personal Area Network 7/2012 89 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student Co- Supervisors Pedro Renato Cláudio Alves da Tavares Pinho Silva Pedro Vieira Nuno Porteira Pedro Vieira Carla Oliveira António Rodrigues António Rodrigues António Rodrigues António Rodrigues Análise de Desempenho em Sistemas MIMO Coordenados 9/2012 Multi-utilizador para Mobile WiMAX 802.16m Aumento de Capacidade em Sistemas MU-MIMO Coordenados 9/2012 para Advanced LTE Simão Fernandes Lopes Marques Neeli R. Prasad Eduardo Duarte Garrido Gameiro André Miguel Vieira Rodrigues Miguel Arantes Moreira Alexandre Pedro Renato Luís Pedro Couto Tavares Pinho Antunes Nuno Emanuel Cabral Monteiro João Vaz Jean-Francois Mousinho António Rodrigues João Martins Minas da Piedade Pedro Vieira Pedro Santos Pedro Renato Tavares Pinho António Rodrigues Ricardo Miguel Romão Gonçalves Francisco de Neeli R. Prasad Castro Paisana João Vaz José Nogueira António Rodrigues Pedro Brasão António Rodrigues Jorge Rodrigues da Costa Impact of femtocell introduction in operational mobile networks Planeamento e Optimização de Femto-células em Ambiente Residencial e Empresarial José Sanguino José Mário Martins Dias Valente Duarte Fonseca Carlos Cardoso Fernandes Reconfigurable antenna Spectrum Sensing Algorithms 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 The receiver analysis and design 9/2012 from a system point of view VSAT satellite network systems application to broadband access 9/2012 services Cognitive wireless regional area networks 10/2012 GPS Ground Base Antenna for Precision Positioning 10/2012 Impact of mobile data evolution in telecommunications networks 10/2012 and its sustainability Paulo Aníbal Pereira Serra de Magalães Corrêa Joana Silva Cell load balancing in heterogeneous scenario Characterization of the telecommunications market Comparative studies of classic and cloud computer technologies Compatibility between private mobile radio service equipment Condicionamento de transmissão em redes sem fios para aplicações de localização e cronometragem Femto/pico basestation Neeli R. Prasad deployment risk assessment Fully integration of switched Pedro Mendonça Santos regulators in CMOS Technology António Rodrigues António Rodrigues Jorge Rodrigues da Costa End Date Analisador de espectros baseado 9/2012 em SDR Análise de Desempenho em Redes Móveis Long Term 9/2012 Evolution João Nascimento Pedro Vieira Title Carlos Cardoso Fernandes Lens-based steerable-beam compact antenas for Ka-Band ground terminals 10/2012 90 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student António Rodrigues Sérgio Galveia Nunes António Rodrigues Vítor Manuel Ferreira Fonseca Co- Supervisors Nuno Cota Pedro Rui Ceia dos António Rodrigues Santos Frederico Miguel de Azevedo Ricardo Jorge José Sanguino António Machado Fernandes Chaves da Silva José Sanguino José Sanguino António Pedro Manuel Rodrigues,Teresa Figueiredo e Silva Ferreira João Nuno Matos João Felgueiras Pedro Renato Tavares Pinho José Manuel José Sanguino Mateus de Jesus António Rodrigues Moreira João Halm Gomes José Sanguino António Rodrigues da Costa Nuno Borges Fábio rico Carvalho José Sanguino Pedro Ferrão Américo Correia António Rodrigues Gil Dias José Sanguino Sandro Borim Neto António Rodrigues Title Multi-cell coordination in LTE systems using beamforming techniques QoS mechanisms analysis in present mobile networks and in LTE Filipe Jorge Bolas Casal Ribeiro 10/2012 10/2012 Assisted Navigation Based On V2V Communications and GPS 11/2012 Autonomous Train Collision Detection System 11/2012 Detection and correction of cycle slips in GNSS carrier phase 11/2012 measurements using low-cost IMU measurements From dishes antennas to planar structures, applied to satellite 11/2012 communications Geo-Location in Social Networks 11/2012 GPS-based Electronic Monitoring 11/2012 for Law Enforcement Applications Location system for the 11/2012 University Campus Positioning and Navigation in 11/2012 Multi-Constellation Scenarios Uso de Repetidores na Rede LTE 11/2012 Web Platform for the Performance Assessment of GNSS Positioning Algorithms Rui Miguel Henriques BS cooperation for system Dias Morgado Dinis, performance enhancement Pedro Amaro Sebastião Development of a new control Francisco João Carlos Pedro Amaro Sebastião station for satellite Cercas Martinho Pires communications Técnicas de detecção para o Adão Silva Eduardo Conde Atílio Gameiro sistema LTE no sentido ascendente Técnicas de Processamento com Adão Silva Pedro Dias Atílio Gameiro Múltiplas Antenas Para o Sistema LTE Schedduling for Distribted Atílio Gameiro Eduardo Castaned wireless networks Francisco Cercas End Date 11/2012 12/2012 12/2012 12/2012 12/2012 1/2014 Table 12 – List MSc Theses running in the Wireless Communications Area during 2011 91 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS PhD Theses Supervisor Student Co- Supervisors Atílio Gameiro Shahid Mumtaz Atílio Gameiro Sara Teodoro Adão Silva José Bioucas Sonia Pelizzari Dias Francisco Cercas Marco Alexandre Cravo Gomes Carlos Paiva Marco Alexandre Ribeiro Vitor Manuel Mendes Silva José Bioucas Gonçalo Valadão Dias Fernando Nunes Nuria Blanco Delgado Américo Correia Alberto Amaral Lopes Nuno Souto, António Rodrigues Orlando Manuel Brito Cabral Carlos Paiva João Carlos Roquete Afonso Barbosa Fidalgo Canto Fernando Nunes Teresa Araújo Pedro Pedrosa Atílio Gameiro Andreia Moço Rafael Caldeirinha Rui Miguel Henriques Dias Morgado Dinis Rui Miguel Henriques Dias Morgado Dinis Adão Silva, Miqdad ALSérgio Morgadinho Nuaimi,Telmo Rebelo Fernandes Nuno Borges Hugo Cravo Gomes Carvalho End Date Cross layer Optimization Techniques 1/2011 in 4G networks Distributed Coding in Cooperative 1/2011 Diversity Systems Oil Slick Surveillance Using ASAR 1/2011 and MERIS Data Magnitude Modulation for peak power control in single carrier 4/2011 communication systems (cosupervision) Clifford Algebras and Electromagnetism: Towards an 5/2011 Equivalence Principle for Electromagnetics Absolute Phase Estimation Fernando J. Velez Fernando Nunes Title Signal Processing Techniques in Modern Multi-Constellation GNSS Receivers Capacity-approaching codes with low implementation complexity, Capacity-approaching codes with low implementation complexity 6/2011 6/2011 9/2011 Optimization of the Interoperability and Dynamic Spectrum Management in Mobile 9/2011 Communications Systems Beyond 3G Electromagnetic Wave Propagation in Metamaterials: Reflection, Transmission and Waveguiding Problems, Electromagnetic Wave 12/2011 Propagation in Metamaterials: Reflection, Transmission and Waveguiding Problems Analytical Evaluation of Nonlinear Distortion Effects in Multicarrier Signals, Analytical Evaluation of 1/2012 Nonlinear Distortion Effects in Multicarrier Signals Joint Frequency-domain Equalization and Fine Decisiondirected Carrier Synchronization for Single-Carrier Modulation, Joint 1/2012 Frequency-domain Equalization and Fine Decision-directed Carrier Synchronization for Single-Carrier Modulation Cooperative Techniques for Wireless communications 2/2012 Time-varying wideband channel model for propagation of radiowaves in vegetation media Interference Minimization in RF Front-ends, Interference Minimization in RF Front-ends 2/2012 3/2012 92 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Mário Silveirinha Luís M. Correia Fernando J. Velez Fernando J. Velez António Rodrigues Maria João Rosário Luís M. Correia Maria João Rosário Luís M. Correia Luís M. Correia Luís M. Correia Arnaldo Silva Rodrigues de Oliveira Student Tiago André Nogueira Morgado Subwavelenth Imaging with Microstructured Materials Common Radio Resource Management in Integrated 4G Mobile Communication Systems João Miguel dos Cross-layer Optimisation of Routing Santos Mercante Protocols for Ad-hoc and Wireless Ferro Sensor Networks Enhanced Two-Phase Contention Luís Miguel Moreira António Sérgio Lebres window MAC Protocol for Wireless Borges Sensor Networks Applications Novel Cooperative Spectrum Nuno Manuel de Ramjee Prasad,Neeli R. Sensing Methods and their Matos Pratas Prasad Limitations CMOS self-oscillator mixer for 5GHz applications, CMOS self-oscillator Luís Miguel Moreira mixer for 5GHz applications, CMOS João Vaz Mendes self-oscillator mixer for 5GHz applications, CMOS self-oscillator mixer for 5GHz applications Common Radio Resource Filipe Duarte dos Luísa Caeiro Management in Heterogeneous Santos Cardoso Networks Fernando dos Integrated Receiver in CMOS Fernando Fortes Santos Azevedo technology Carla Oliveira MIMO in Body Area Networks Radio Channel Models for MIMO Systems Radio Resources Management in Wireless Mesh Networks Cesaltina Ricardo Lúcio Ferrreira Nelson José Valente Nuno Borges Carvalho Silva Adão Silva Rui Filipe Rosa Paulo Atílio Gameiro Daniel Castanheira 3/2012 4/2012 6/2012 6/2012 6/2012 7/2012 7/2012 7/2012 7/2012 7/2012 7/2012 Channel Estimation And Parameter Acquisition Systems Employing 9/2012 Cooperative Diversity 9/2012 MAC / Network and RRM algorithms and protocols in cooperative 9/2012 diversity communication Efficient Multi-mode Software Defined Radios Design Nuno Borges Pedro Miguel Cruz Carvalho Mário Rui Silveira Pereira End Date Arquitecturas Reconfiguráveis para 9/2012 Rádios Controlados por Software Dimensioning of Mobile and Wireless Communication Systems with Relays in the Context of 4G Coexistence Atílio Gameiro Kazi Huq Henrique Salgado Title António Serrador Atílio Gameiro Darlene Neves Fernando J. Velez Co- Supervisors José Rocha Pereira Electromagnetic bandgap components and antennas for broadband communications, 10/2012 10/2012 Interference cancellation techniques and Resource Allocation for distributed cellular systems 10/2012 93 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Mário Silveirinha Student Co- Supervisors Microstructured High Impedance João Tiago de Figueiredo e Costa Nuno Borges Nelson José Valente Carvalho da Silva Atílio Gameiro Reza Holakouei Adão Silva Henrique Salgado Qi Luo José Rocha Pereira Francisco Cercas Nuno Miguel de Figueiredo Garrido Francisco Cercas, Augusto Albuquerque Pedro Miguel Filipe Rodrigues Cabral Luís M. Correia José Carlos Pedro Francisco Cercas João Nuno Matos Jonathan Rodriguez Gonzalez José Carlos Pedro Michal Mackowiak Hugo Miguel Santos Telmo Reis Cunha Teixeira Roberto Dimas do Amaral Tiago Hipkins José A. Fonseca Meireles Anja Skrivervik Manuel Violas Senka Hadzicl Jonathan Rodriguez Gonzalez Atílio Gameiro Eduardo Castaned António Navarro António Rodrigues Michel Celestino Paiva Ferreira Ivo Luís de la Cerda Maria Paula Queluz Garcia e Sousa Nalluri Purnachand Luis Nero Alves Nuno António Fraga Juliano Cota Hugo Conceição Fernando J. Velez Norberto José Gil Barroca Jonathan Rodriguez Gonzalez Firooz B. Saghezchi Manuel Violas George Matthew Fernando J. Velez Daniel Luís Silveira Robalo Antenna Substrates Reconfigured Architectures for Software Defined Radio Virtual MIMO Techniques for Distributed Broadband Wireless systems (DBWS) Design Synthesis and Miniaturization of Multiband and Reconfigurable Microstrip Antenna for Future Wireless Applications Design of Adaptive Analog Filters for Magnetic Front-End Read Channels (co-supervision) Electrónica para comunicações sem fios: Amplificadores de Rádio Eficientes Modelling MIMO Systems in Body Area Networks in Outdoors Nonlinear Behavioural Modelling of Mixed Signal RF-Digital I/O Devices Terrestrial Digital Television and new market opportunities Wireless Communications for Assistive Technologies Cooperative Positioning for Heterogeneous Wireless Systems Senka Hadzic António Alves Nuno Miguel Faria Moreira Pires António Rodrigues Title O. K. Tonguz Antennas for integration into small personal terminals and Ultra-wide band antennas Cooperative positioning for heterogeneous wireless systems Candidate: Senka System Level Simulation MIMO techniques in future high capacity wireless communication systems Motion Estimation and its Hardware Implementation Automatic Radio Resource Management for 4G Networks Distributed Control of Road Traffic based on Vehicular Ad Hoc Networking Innovative Energy-efficient Sensor Medium Access Control and Routing Protocols MAP-Tele Jonathan Rodriguez Gonzalez Native P2P VoIP/Video Communication over Autonomic Wireless Network Infrastructures End Date 10/2012 10/2012 10/2012 11/2012 12/2012 12/2012 12/2012 12/2012 12/2012 12/2012 2/2013 2/2013 2/2013 2/2013 3/2013 3/2013 6/2013 9/2013 9/2013 9/2013 9/2013 Planning of Opportunistic Spectrum Sharing Heterogeneous Networks 9/2013 with QoE Optimization 94 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Custódio Peixeiro Student Co- Supervisors Rafal Glogowski Title Printed Millimetre Wave Antennas Secure and Reliable Communication Infrastructure for IP-Based Emergency Applications - Map-i Program Nuno Borges Pedro Renato Tavares Antennas for high resolution Luis Bras Carvalho Pinho location Nuno Borges Figures of Merit for the Wireless José Pedro borrego Carvalho White Spaces José Carlos Behavioural Modelling of HighWael Dghais Telmo Reis Cunha Pedro Speed Digital Devices João Costa Mário Jorge Simão Modelling of Passice Structures on Pedro Mendonça Santos Freire de Assunção Silicon Technologies José Carlos Sérgio Carlos da Multi-Standard Reconfigurable Pedro Miguel Cabral Pedro Conceição Pires Wireless Transmitter Architectures Primary-Secondary Spectrum Rathapon Sharing in the Presence of Primary Luís M. Saruthirathanawora Transmissions: Feasibility Study in Correia kun Cellular Bands and Radar Bands, and Policy Implications Reducing primary energy João Costa António Manuel consumption through lower power Pedro Mendonça Santos Freire Sequeira Abreu losses of electrical transmission and distribution systems Michel VANET-Based Traffic Information Celestino Ricardo Fernandes Systems Paiva Ferreira Applications of Spacetime Algebra Carlos Paiva Filipa Prudêncio Sérgio Almeida Matos in Electromagnetics Decentralised control of stochastic Michel Zafeiris processes with application to urban Celestino Cristina Olaverri Kokkinogenis traffic control Paiva Ferreira Jonathan Rodriguez Gonzalez Vahid Nazari Talooki 9/2013 10/2013 10/2013 10/2013 12/2013 12/2013 12/2013 12/2013 12/2013 12/2013 1/2014 1/2014 Amplificadores de Potência AutoOscilantes em Transmissores de Comunicações Sem Fios 9/2014 Victor Sucasas Iglésias Electronic Engineering 9/2014 Riccardo Bassoli Electronic Engineering 9/2014 Mário Silveirinha David Emanuel Dias Fernandes Manipulating the electromagnetic field in the nanoscale with nonlinear 9/2014 metamaterials José Sanguino Carlos Miguel Sendas Pires José Carlos Pedro Jonathan Rodriguez Gonzalez Jonathan Rodriguez Gonzalez Manuel Joaquim Campos Mendes Nunes Duarte End Date Pedro Miguel Cabral Nuno Borges Eduardo Bolas Carvalho Jonathan Rodriguez Gonzalez Muhammad Alam Américo Correia Carlos Reis Real-time Kinematic Positioning in Urban Environments 9/2014 Cognitive Radio for Military Applications 10/2014 Cognitive Networks for Green and Seamless User Mobility - MAP-i Program Nuno Souto Comunicação multi-hop com LTEAdvanced 11/2014 11/2014 95 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Supervisor Student Co- Supervisors António Rodrigues André Eduardo Ponciano Martins Pedro Vieira João Nuno Matos Tiago Miguel Valente Varum Pedro Renato Tavares Pinho David Ferreira Telmo Fernandes Rafael Caldeirinha Fernando Nunes Luís M. Correia José Marçal Eduardo Sá Nuno Borges Ricardo Fernandes Carvalho Nuno Borges Alírio boaventura Carvalho Nuno Souto Luís Gonçalves Nuno Borges Carvalho,João Nuno Matos Joaquim Oliveira Jorge Ana Catarina Caniço Carlos Cardoso Rodrigues da Cruz Fernandes Costa Pedro Miguel Luis Carlos Cotimos José Carlos Pedro Cabral Nunes Luís M. Correia Sina Khatibi João Vaz Marco António da Mota Carvalho Silva Pereira Custódio Peixeiro Hamed Hasani Francisco Cercas Rui Manuel Sousa Rodrigues Coordinated multiuser MIMO enhancement for LTE advanced wireless networks Beamforming antenna for satellite communications End Date 11/2014 12/2014 RF transparency control of building 12/2014 wall structures Vector Structures in GNSS 1/2015 Receivers Energy Efficient Self Organising Network Mechanisms for Next 3/2015 Generation Mobile Networks Passive Wireless Sensor Networks Wireless Power Transmission Solutions for Wireless Communications Optimal Planning of Femtocells in Pedro Amaro Sebastião LTE-Advanced Carlos Jorge Rodrigues da Cardoso Andela Zaric Costa Fernandes António Alves Mohsen Koohestani Anja Skrivervik Moreira João Vaz Title Antennas for Localization and Identification Systems Compact and integrated antennas for portable applications Estudo e implementação de moduladores de fase para amplificadores polares Lens-based Focal Plane Antenna Arrays for Imaging Systems Mecanismos de geração e controlo da distorção não-linear em amplificadores Doherty. Radio Resource Management Strategies in 3/2015 4/2015 5/2015 9/2015 9/2015 9/2015 9/2015 9/2015 9/2015 Power amplifiers for wireless communications 10/2015 Juan R. Mosig Reflectarrays of Printed Elements 10/2015 Rui Miguel Henriques Dias Morgado Dinis Synchronization and Channel Estimation for Nonlinear OQPSK Schemes 12/2015 Table 13 – List of PhD Theses running in the Wireless Communications Area during 2011 96 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.6 Publications Antennas Book Chapters - Oliveira, C.; " Body Communications " - Chapter in Pervasive Mobile & Ambient Wireless Communications , Roberto Verdone , Springer , (to be published) , 2011 . Papers in Journals - Koohestani, M.; M. Akbari; J. Khalilpour; " A New Compact Dual-Wideband Printed Monopole Antenna for WLAN/WiMAX Applications ", Intrnl. Journal of RF and Microwave Computer Aided-Engineering , Vol. 21 , No. 6 , pp. 674 - 679 , November , 2011 . - Akbari, M.; M. Koohestani; Ch. Ghobadi; J. Nourinia; " A New Compact Planar UWB Monopole Antenna ", Intrnl. Journal of RF and Microwave Computer AidedEngineering , Vol. 21 , No. 2 , pp. 216 - 220 , March , 2011 . - Khalilpour, J.; M. Akbari; M. Koohestani; " Adjustment of Waveguide Power Divider Properties by Changing the Dimension of S-shaped Ring Resonators ", Intrnl. Journal of Electronics , Vol. 2 , No. 3 , pp. 7 - 11 , September , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Approaching the MFB with Block Transmission Techniques ", European Trans. on Telecommunications , August , 2011 . - Luo, Q. L.; J. R. Pereira; H. Salgado; " Compact Printed Monopole Antenna With Chip Inductor for WLAN ", IEEE Antennas and Wireless Propagation Letters , Vol. 10 , No. 10 , pp. 880 - 883 , August , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Estimation of the Feedback Reliability for IB-DFE Receivers ", ISRN Communications and Networking Journal , Vol. 2011 , June , 2011 . - Costa, J.R.; E.B. Lima; C. R. Medeiros; C. A. Fernandes; " Evaluation of a New Wideband Slot Array for MIMO Performance Enhancement in Indoor WLANs ", IEEE Trans. on Antennas and Propagation , Vol. 59 , No. 4 , pp. 1200 - 1206 , April , 2011 . - Varum, T.; J. N. Matos; P.T. Pinho; R. Abreu; A.O. Oliveira; J.A. Alves; " Microstrip Antenna Array for Multiband Dedicated Short Range Communications ", Microwave and Optical Tech. Letters , Vol. 53 , No. 12 , pp. 2794 - 2796 , December , 2011 . - Serra, C. C. ; C. R. Medeiros; J.R. Costa; C. A. Fernandes; " Mirror-integrated Transparent Antenna for RFID Application ", IEEE Antennas and Wireless Propagation Letters , Vol. 10 , pp. 776 - 779 , September , 2011 . 97 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Medeiros, C. R.; J.R. Costa; C. A. Fernandes; " Passive UHF RFID Tag for Airport Suitcase Tracking and Identification ", IEEE Antennas and Wireless Propagation Letters , Vol. 10 , No. s/n , pp. 123 - 126 , March , 2011 . - Medeiros, C. R.; J.R. Costa; C. A. Fernandes; " RFID Reader Antennas For Tag Detection in Self-Confined Volumes at UHF ", IEEE Antennas and Propagation Magazine , Vol. 53 , No. 2 , pp. 39 - 50 , April , 2011 . - Morgado, T. A.; J. Marcos; M. Silveirinha; S. Maslovski ; " Ultraconfined Interlaced Plasmons ", Physical Review Letters , Vol. 107 , No. 063903 , pp. 1 - 4 , August , 2011 . Papers in Conference Proceedings - Costa, J.R.; E.B. Lima; C. R. Medeiros; C. A. Fernandes; " 2×2 Dual Linear Polarization Wideband Slot Array ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , Vol. - , pp. 355 - 358 , April , 2011 . Mackowiak, M.; C. Oliveira; L. M. Correia; " A Statistical Analysis of the Influence of the Human Body on the Radiation Pattern of Wearable Antennas ", Proc IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , Toronto , Canada , Vol. 1 , pp. 1 - 5 , September , 2011 . Amaral, F.; R. Dinis; P. M. Montezuma; " Approaching the Matched Filter Bound with Coded OFDM and SC-FDE Schemes ", Proc IEEE Military Communications Conf. - MILCOM , Baltimore, MD , United States , November , 2011 . Caldeirinha, R.F.S.; T.R. Fernandes; D. Ferreira; " Automatic Antenna Alignment System (A3S) ", Proc CETC2011- Conf. on Electronics, Telecommunications and Computers , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , November , 2011 . Pinho, P.T.; C.M. Mendes; N. Amaro; " Bending effects on a textile microstrip antenna ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. 1 , July , 2011 . Oliveira, C.; M. Mackowiak; L. M. Correia; " Challenges for Body Area Networks Concerning Radio Aspects ", Proc European Wireless - EW , Wien , Austria , April , 2011 . - Oliveira, C.; Lopes,C. Lopes; M. Mackowiak; L. M. Correia; " Characterisation of On-Body Communications at 2.45 GHz ", Proc International Conf. on Body Area Networks - BodyNets , Beijing , China , November , 2011 . Glogowski, R.G.; JFZ Zurcher; JM Mosig; C. Peixeiro; " Circularly polarized aperture coupled stacked patch antenna element for Ka-band ", Proc IEEE APS/URSI International Symp. , Spokane , United States , Vol. 1 , pp. 1 - 1 , July , 2011 . 98 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Luo, Q. L.; H. Salgado; J. R. Pereira; " Compact printed C-shaped monopole antenna with chip inductor ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. 1 , pp. 156 - 159 , July , 2011 . - Fernandes, C. A.; E.B. Lima; J.R. Costa; " Double-shell Modified Extended Hemispherical Lens Feed for Reflectors in Scanning ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , pp. 3850 - 3854 , April , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Efficient Channel Estimation for OFDM and SC-FDE Schemes ", Proc IEEE International Conf. on Computer Communication and Networks - ICCCN , Maui, Hawaii , United States , August , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Efficient Channel Estimation for Single Frequency Broadcast Systems ", Proc IEEE Vehicular Technology Conf. - VTC-Fall , San Francisco , United States , September , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Estimation of the Feedback Reliability for IB-DFE Receivers ", Proc IASTED International Conf. on Signal Processing, Pattern Recognition and Applications - SPPRA , Innsbruck , Austria , February , 2011 . - Costa, J.R.; E.B. Lima; C. R. Medeiros; C. A. Fernandes; " Impact of a New Wideband Slot Array on MIMO Indoor System Performance ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. 1 , pp. 2208 - 2211 , July , 2011 . - Pires, N.; M. Letizia; S. B. Boyes; Y. L. Lu; A. Skrivervik; A. A. Moreira; " Improved Design of an Ultra Wideband Universal Serial Bus Device Mounted Antenna Based on Comparative Radiation Efficiency Measurements ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , pp. 1430 - 1434 , April , 2011 . - Brás, L.; N.B.C. Carvalho; P.T. Pinho; " Improved Sectorised Antenna for Indoor Localization Systems ", Proc European Microwave Week/European Microwave Conf. , Manchester , United Kingdom , Vol. , pp. 1 - 4 , October , 2011 . - Fernandes, D.F.; J. Marcos; S. Maslovski ; M. Silveirinha; " Measurement of the Specific Absorption Rate using a single electric field sensor ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Varum, T.; J. N. Matos; P.T. Pinho; R. Abreu; " Microstrip antenna for vehicular communications with improved axial ratio band ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , pp. 1 - 4 , April , 2011 . - Santos, V.; K.G. Garcia ; F. Lopes; " Microstrip Antennas Experiments for Digital Television Reception ", Proc Portuguese-Spanish Conf. in Electrical Engineering , Ponta Delgada , Portugal , Vol. I , pp. 1 - 4 , June , 2011 . - Peixeiro, C.; " Microstrip Patch Antennas: An Historical Perspective of the Development ", Proc International Microwave and Optoelectronics Conf. - IMOC , Natal , Brazil , Vol. 1 , pp. 1 - 1 , November , 2011 . 99 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Mackowiak, M.; L. M. Correia; " Modelling the Influence of Body Dynamics on the Radiation Pattern of Wearable Antennas in Off-Body Radio Channels ", Proc URSI General Assembly , Garmisch-Partenkirchen , Germany , Vol. 1 , pp. 1 - 1 , March , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " On the Design of Frequency-Domain Receivers for SFN Where the Transmitters Have Different CFO ", Proc IEEE Military Communications Conf. - MILCOM , Baltimore, MD , United States , November , 2011 . - Costa, J.R.; E.B. Lima; C. A. Fernandes; " Optimized Design of a Double-Shell Integrated Lens Antenna ", Proc ESA Worshop on Millimetre Wave Technology and Application , Espoo , Finland , May , 2011 . - Peixeiro, C.; " Patch Antennas for BAN/PAN Applications at 2.45 GHz ", Proc IEEE II Conference on Telecommunications - CONATEL 2011 , Arequipa , Peru , Vol. 1 , pp. 1 - 5 , May , 2011 . - Brás, L.; N.B.C. Carvalho; P.T. Pinho; " Patch-Excited Horn Antenna Array for Localization Systems ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , pp. 1 - 4 , July , 2011 . - Pinho, P.T.; P.T. Pinho; " Performance of microstrip antennas in the presence of EBG in an indoor localization system ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. 1 , July , 2011 . - Varum, T.; J. N. Matos; P.T. Pinho; " Printed antenna for On-Board Unit of a DSRC System ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. , pp. 457 - 460 , July , 2011 . - Amaral, F.; R. Dinis; P. M. Montezuma; " Receiver Design for Single-Frequency Networks with Fast-Varying Channels ", Proc IEEE Vehicular Technology Conf. VTC-Fall , San Francisco , United States , September , 2011 . - Pires, N.; M. Letizia; S. B. Boyes; Y. L. Lu; A. Skrivervik; A. A. Moreira; " Simulation and Measurements of Ultra-Wideband Antenna Radiation Efficiency ", Proc Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Sesimbra , Portugal , pp. 61 - 62 , November , 2011 . - Serra, C. C. ; C. R. Medeiros; J.R. Costa; C. A. Fernandes; " Study of Transparent Antennas for RFID ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , July , 2011 . - Fernandes, C. A.; E.B. Lima; J.R. Costa; " Tapered Waveguide Feed for Integrated Dielectric Lens Antenna Performance Evaluation ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Medeiros, C. R.; C. C. Serra; C. A. Fernandes; J.R. Costa; " UHF RFID Cabinet ", Proc IEEE AP-S/URSI International Symp. , Spokane , United States , Vol. 1 , pp. 1429 - 1432 , July , 2011 . 100 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Project Reports - Glogowski, R.G.; JFZ Zurcher; JM Mosig; " Ka-band Payload Data Downlink Antennas Definition for Earth Observation ", ESA , ESA AO/1-6057/09/NL/ST , June , 2011 . CIRCUITS AND DEVICES Book Chapters - Pereira, J. R.; P.T. Pinho; " Using the Smith chart in an E-learning approach " Chapter in E-Learning / Book 2 , Prof. Adilson Guelfi, Laboratory of Integrated Systems, Polytechnic School at the University of São Paulo, Brazil , In-Tech , , 2011. Papers in Journals - Silva, T.; L. A Cruz; L. Agostini; " A Novel Macroblock-Level Filtering Upsampling Architecture for H.264/AVC Scalable Extension ", Journal of Integrated Circuits and Systems , Vol. 1 , No. 6 , pp. 43 - 49 , March , 2011 . - Stievano, I. S.; L. Rigazio; F. Canavero; T.R. Cunha; J. C. Pedro; H. Teixeira; A. Girardi; R. Izzi; F. Vitale; " Behavioral modeling of IC memories from measured data ", IEEE Trans. on Instrumentation and Measurement , Vol. 60 , No. 10 , pp. 3471 - 3479 , October , 2011 . - Cunha, T.R.; H. Teixeira; J. C. Pedro; I. S. Stievano; L. Rigazio; F. Canavero; R. Izzi; F. Vitale; A. Girardi; " Validation by measurements of an IC modeling approach for SiP applications ", IEEE Trans. on Components, Packaging and Manufacturing Technology , Vol. 1 , No. 8 , pp. 1214 - 1225 , August , 2011 . Papers in Conference Proceedings - Azevedo, A.F.; F. Fortes; M. J. Rosário; " A 1.8V/5.2GHz WLAN CMOS RFIC Receiver ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. I , pp. 1 4 , April , 2011 . - Ribeiro, R. F. Ribeiro; L.M. Mendes; J.M.C.V. Vaz; M. J. Rosário; J. Costa Freire; " A 130 nm CMOS LNA for 30 GHz Applications ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Vaz, J.M.C.V.; J.M.C.V. Vaz; J.M.C.V. Vaz; " A 2.45 GHz 30 dBm Differential 0.18 ƒÊm CMOS Class•]E Power Amplifier with 42% PAE ", Proc Conf. on Design of Circuits and Integrated Systems , Albufeira , Portugal , November , 2011 . - Bergano , JB; A. Rocha; L. Cupido; D. Barbosa ; " A 5 GHz LNA for a radioastronomy experiment ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , pp. 1 - 4 , April , 2011 . 101 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Fernandes, R. D.; N.B.C. Carvalho; J. N. Matos; " Design of a battery-free wireless sensor node ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Fernandes, R. D.; N.B.C. Carvalho; J. N. Matos; " Increasing the range of wireless passive sensor nodes using multisines ", Proc IEEE International Conf. on RFIDTechnology and Applications , Barcelona , Spain , Vol. 1 , pp. 549 - 553 , September , 2011 . - Cadete, F.C.; DG Guilherme; J.G. Guilherme; N.H. Horta; F.C. Cadete; " Overcurrent Detection Circuit for Integrated Class-D Amplifiers ", Proc European Conf. on Circuit Theory and Design , Linköping , Sweden , Vol. 1 , pp. 410 - 413 , September , 2011 . - Gonçalves Lima, E.; T.R. Cunha; J. C. Pedro; " PM-AM/PM-PM distortions in wireless transmitter behavioral modeling ", Proc IEEE International Symp. on Microwave Theory and Tech. , Baltimore , United States , Vol. 1 , pp. 1 - 4 , June , 2011 . - Cunha, T.R.; P.M.L. Lavrador; E. Gonçalves Lima; J. C. Pedro; " Rational functionbased model with memory for power amplifier behavioral modeling ", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC , Wien , Austria , Vol. 1 , pp. 1 - 4 , April , 2011 . - Vaz, J.M.C.V.; " Switched Dual•-band CMOS LNA for 802.11b/g WLAN and WiMAX Applications ", Proc Conf. on Design of Circuits and Integrated Systems , Albufeira , Portugal , November , 2011 . PHYSICAL MODELLING AND WAVE PROPAGATION CHARACTERIZATION Papers in Journals - Maslovski , S.; M. Silveirinha; " Casimir forces at the threshold of the Cherenkov effect ", Physical Review A , Vol. 84 , No. 062509 , pp. 1 - 7 , December , 2011 . - Maslovski , S.; " Casimir repulsion in moving media ", Physical Review A , Vol. 84 , No. 022506 , pp. 1 - 16 , August , 2011 . - Alù, A; A. D. Yaghjian; R. A. Shore; M. Silveirinha; " Causality relations in the homogenization of metamaterials ", Physical Review B , Vol. 84 , No. 054305 , pp. 1 - 16 , August , 2011 . - Kaipa, C. S. R.; A. Yakovlev; M. Silveirinha; " Characterization of Negative Refraction with Multilayered Mushroom-type Metamaterials at Microwaves ", Journal of Appl. Physics , Vol. 109 , No. 044901 , pp. 1 - 10 , February , 2011 . - Kapitanova, P. V.; S. Maslovski ; I. V. Shadrivov; M. Voroshilov; P. A. Belov; Yu. S. S.; " Controlling split-ring resonators with light ", Applied Physics Letters , Vol. 99 , No. 251914 , pp. 1 - 3 , December , 2011 . 102 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Canto, João R.; C. R. Paiva; A. Barbosa; " Dispersion and Losses in Surface Waveguides Containing Double Negative or Chiral Metamaterials ", Progress In Electromagnetics Research - PIER , Vol. 116 , pp. 409 - 423 , May , 2011 . - Silveirinha, M.; " Examining the Validity of the Kramers-Kronig relations for the magnetic permeability ", Physical Review B , Vol. 83 , No. 165119 , April , 2011 . - Kaipa, C. S. R.; A. Yakovlev; S. Maslovski ; M. Silveirinha; " Indefinite dielectric response and all-angle negative refraction in a structure with deeply-subwavelength inclusions ", Physical Review B , Vol. 84 , No. 165135 , pp. 1 - 7 , October , 2011 . - Kumar, Navin; Nuno Rafael Lourenço; L. Alves; R. L. Aguiar; " LED-based Traffic Light Emitter Model for Road Safety Applications ", Vol. 1x , No. 2 , April , 2011 . - Maslovski , S.; M. Silveirinha; " Mimicking Boyer’s Casimir repulsion with a nanowire material ", Physical Review A , Vol. 83 , No. 022508 , pp. 1 - 13 , February , 2011 . - Costa, J.; M. Silveirinha; " Mimicking the Veselago-Pendry’s lens with broadband matched double negative metamaterials ", Physical Review B , Vol. 84 , No. 155131 , pp. 1 - 14 , October , 2011 . - Canto, João R.; C. R. Paiva; A. Barbosa; " Modal analysis of bi-isotropic H-guides ", Progress In Electromagnetics Research - PIER , Vol. 111 , pp. 1 - 24 , January , 2011 . - S. Maslovski ; Yu. S. S.; P. A. Belov; " Nonlocal effective medium model for multilayered metal-dielectric metamaterials ", Physical Review B , Vol. 84 , No. 115438 , pp. 1 - 9 , September , 2011 . - Kosulnikov, S. Yu.; E. A. Yankovskaya; S. Maslovski ; P. A. Belov; Yu. S. S.; " Optimal filling factor of nanorod lenses for subwavelength imaging ", Physical Review A , Vol. 84 , No. 065801 , pp. 1 - 4 , December , 2011 . - Costa, J.; M. Silveirinha; A Alù; " Poynting Vector in Negative-Index Metamaterials ", Physical Review B , Vol. 83 , No. 165120 , April , 2011 . - Rebelo, S. Morgadinho; R.F.S. Caldeirinha; M. AL-Nuaimi; I. Cuinas; M. Sanchez ; T.R. Fernandes; J. Richter; " Radio Channel Characterization and Modelling in Dynamic Vegetation Media at Millimetre-Wave Frequency (Accepted for Publication) ", IEEE Antennas and Propagation Magazine , January , 2011 . - Silveirinha, M.; C. R. Medeiros; C. A. Fernandes; J.R. Costa; " Resolving subwavelength objects with a crossed wire mesh superlens operated in backscattering mode ", New Journal of Physics , Vol. 13 , No. 053004 , pp. 1 - 14 , May , 2011 . 103 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Silveirinha, M.; " Time Domain Homogenization of Metamaterials ", Physical Review B , Vol. 83 , No. 165104 , April , 2011 . Papers in Conference Proceedings - Rebelo, S. Morgadinho; R.F.S. Caldeirinha; T.R. Fernandes; M. AL-Nuaimi; J. Richter; " A Channel Dynamics dRET Model for Vegetation Media Assessed against Indoor and Outdoor Measurements ", Proc IEEE International Geoscience and Remote Sensing Symp.- IGARSS , Vancouver , Canada , Vol. 1 , pp. 2 - 6 , July , 2011 . - Leonor, N.; R.F.S. Caldeirinha; T.R. Fernandes; D. Ferreira; " A ray tracing based model using point scatterers for doubly selective radio channels ", Proc URSI Seminar of the Portuguese Committee , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , November , 2011 . - Correia, L. M.; " Addressing Challenges in Propagation and Channels in the Networks of the Future ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , April , 2011 . - Rebelo, S. Morgadinho; R.F.S. Caldeirinha; T.R. Fernandes; M. AL-Nuaimi; J. Richter; " Analysis of the dRET input parameters under varying wind conditions at 20 GHz ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 2 - 6 , April , 2011 . Ganhão, F.; R. Dinis; L. B. Bernardo; " Analytical Evaluation of Iterative Packet Combining and Multipacket Detection Schemes for SC-FDE ", Proc IEEE Vehicular Technology Conf. - VTC-Fall , San Francisco , United States , September , 2011 . - Matos, S.A.; C. R. Paiva; " Anisotropic and bianisotropic media in electromagnetics with geometric algebra ", Proc International Conf. on Clifford Algebras and their Applications - ICCA9 , Weimar , Germany , July , 2011 . - Matos, S.A.; C. R. Paiva; A. Barbosa; " Biaxial Media Beyond Electric Anisotropy ", Proc Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Sesimbra , Portugal , November , 2011 . - Paiva, C. R.; S.A. Matos; " CHARACTERIZATION OF MOVING MEDIA IN CLASSICAL ELECTRODYNAMICS WITH SPACETIME ALGEBRA ", Proc International Conf. on Clifford Algebras and their Applications - ICCA9 , Weimar , Germany , Vol. 1 , pp. 1 - 10 , July , 2011 . - Mota, S.M.; M. G. Garcia; A. Rocha; F. Fontan ; " Clustering of the Multipath Radio Channel Parameters ", Proc European Conf. on Antennas & Propagation EUCAP , Rome , Italy , Vol. I , pp. 3232 - 3236 , April , 2011 . - Matos, S.; C. R. Paiva; " Conical refraction for new classes of biaxial metamaterials ", Proc Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS , Barcelona , Spain , October , 2011 . 104 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Matos, S.A.; C. R. Paiva; A. Barbosa; " Conical Refraction in Generalized Biaxial Media A Geometric Algebra Approach ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Ferreira, D.; R.F.S. Caldeirinha; " Development and Implementation of a Real Time High-Resolution Channel Sounder – IF Stage ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , Vol. 1 , pp. 1 - 5 , May , 2011 . - Ferreira, D.; " Development and Implementation of a Real Time High-Resolution Channel Sounder – IF Stage ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , Vol. 1 , pp. 1 - 4 , May , 2011 . - Ferreira, D.; R.F.S. Caldeirinha; " Development and Performance Analysis of a Real Time High-Resolution Channel Sounder – IF Stage ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Ferreira, D.; R.F.S. Caldeirinha; " Development and Performance Assessment of a Real Time High-Resolution RF Channel Sounder ", Proc IEEE International Geoscience and Remote Sensing Symp.- IGARSS , Vancouver , Canada , Vol. 1 , pp. 4257 - 4260 , July , 2011 . - Topa, A.; " Dispersion Diagrams of Waveguides Filled With Indefinite Media ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Caldeirinha, R.F.S.; T.R. Fernandes; D. Ferreira; " Estimation of Dielectric Building Material Properties from Power Measurements at 60 GHz ", Proc CETC2011- Conf. on Electronics, Telecommunications and Computers , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , November , 2011 . - Feitor, B.; R.F.S. Caldeirinha; T.R. Fernandes; D. Ferreira; N. Leonor; " Estimation of Dielectric Concrete Properties from Power Measurements at 18.7 and 60 G ", Proc Loughborough Antennas and Propagation Conf. – LAPC , Loughborough , United Kingdom , Vol. 1 , pp. 1 - 4 , November , 2011 . - Rebelo, S. Morgadinho; J. Richter; R.F.S. Caldeirinha; T.R. Fernandes; " Investigation of a time-variant dRET model in vegetation ", Proc URSI General Assembly , Istanbul , Turkey , August , 2011 . - Amaya, C. A; T.Ngu Nguyen; A. Rocha; J. M. R. Riera; A. Benarroch Benarroch; P. G. Garcia-del-Pino; " Joint Results of 20 GHz Recent Earth-Space Propagation Experiments in Canada and Europe ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , April , 2011 . - Amaya, C. A; T.Ngu Nguyen; A. Rocha; J. M. R. Riera; A. Benarroch Benarroch; P. G. Garcia-del-Pino; J. M. R Garcia-Rúbia; " Joint Results of Long-Term Earth-Space Propagation Eexperiments at 20-GHz in Canada and Europe ", Proc ESA Propagation Workshop - Radiowave Propagation Modelling and Measurements for SatCom and SatNav Systems , Noordwijk , Netherlands , November , 2011 . 105 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Rocha, A.; " Long Term Rain Rate and Ka-Band Attenuation Variability in Aveiro ", Proc European Conf. on Antennas & Propagation - EUCAP , Rome , Italy , April , 2011 . - Leonor, N.; R.F.S. Caldeirinha; T.R. Fernandes; D. Ferreira; " Modelling and Measurements of the Directional Spectra of Scatter Signals Inside a Formation of Tree Trunks ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Maslovski , S.; " Motion-induced repulsive Casimir-Lifshitz forces ", Proc Days on Diffraction , St. Petersburg , Russia , Vol. 1 , pp. 142 - 142 , June , 2011 . - Kaipa, C. S. R.; A. Yakovlev; M. Silveirinha; S. Maslovski ; " Negative refraction by a two-sided mushroom structure with loaded vias ", Proc Metamaterials Congress , Barcelona , Spain , Vol. 1 , pp. 693 - 695 , October , 2011 . - Maslovski , S.; A. Tretyakov; " Perfect lens based on ideal phase conjugating surfaces ", Proc Metamaterials Congress , Barcelona , Spain , Vol. 1 , pp. 627 - 629 , October , 2011 . - Maslovski , S.; A. Tretyakov; " Perfect lensing with phase conjugating surfaces: approaching practical realization ", Proc Days on Diffraction , St. Petersburg , Russia , Vol. 1 , pp. 143 - 143 , June , 2011 . - Maslovski , S.; M. Silveirinha; " Quantum levitation in nanowire materials ", Proc Metamaterials Congress , Barcelona , Spain , Vol. 1 , pp. 1015 - 1017 , October , 2011 . - Kaipa, C. S. R.; A. Yakovlev; M. Silveirinha; S. Maslovski ; " Reflection properties of mushroom-type surfaces with loaded vias ", Proc Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics METAMATERIALS , Barcelona , Spain , Vol. 1 , pp. 185 - 187 , October , 2011 . - Leonor, N.; D. Ferreira; R.F.S. Caldeirinha; T.R. Fernandes; " The development of an empirical model for single tree trunk re-radiation pattern for dRET model applications ", Proc URSI General Assembly , Istanbul , Turkey , Vol. 1 , pp. 1 - 4 , August , 2011 . - Prudêncio, F.; S.A. Matos; C. R. Paiva; " Waveguides Containig Minkowskian Isotropic Media (MIM) and the Perfect Electromagnetic Conductor (PEMC) ", Proc Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Sesimbra , Portugal , Vol. 1 , pp. 1 - 1 , November , 2011 . 106 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS SYSTEM PLANNING AND RADIO RESOURCE MANAGEMENT Book Chapters - Kürner, T.; P. Grazioso; A. Eisenblätter; G. de la Roche; F. J. Velez; " Deployment of Next Generation Cellular Networks " - Chapter in Pervasive Mobile & Ambient Wireless Communications (COST 2100) , Roberto Verdone , River Publishers , aalborg, Denmark , 2011 . - Mwangoka, J.; P. Marques; J. Rodriguez; " Elements of Efficient TV White Space Allocation Part I: Acquisition Principles " - Chapter in Wireless Networks in the TV White Space: Concepts, Techniques and Applications , Rashid A. Saeed and Stephen J. Shellhammer , CRC Press , 2011 . - Mwangoka, J.; P. Marques; J. Rodriguez; " Elements of Efficient TV White Space Allocation Part II: Business Models " - Chapter in Wireless Networks in the TV White Space: Concepts, Techniques and Applications , Rashid A. Saeed and Stephen J. Shellhammer , CRC Press , 2011 . Papers in Journals - Serrador, A. Serrador; L. M. Correia; " A Cost Function Model for CRRM over Heterogeneous Wireless Networks ", Wireless Personal Communications , Vol. 59 , No. 2 , pp. 313 - 329 , July , 2011 . - Velez, F. J.; M.K. Nazir; H. Aghvami; O. Holland; D.R. Robalo; " Cost/Revenue Trade-off in the Optimization of Fixed WiMAX Deployment with Relays ", IEEE Trans. on Vehicular Tech. , Vol. 60 , No. 1 , pp. 1 - 15 , January , 2011 . - Cabral, O.; F. Meucci Meucci; A. Mihovska; F. J. Velez; N. Prasad; " Integrated Common Radio Resource Management with Spectrum Aggregation over NonContiguous Frequency Bands ", Wireless Personal Communications , Vol. 59 , No. 3 , pp. 499 - 523 , August , 2011 . Papers in Conference Proceedings - Saghezchi, F.; A. Nascimento; M. Albano; A. R. Radwan; J. Rodriguez; " A Novel Relay Selection Game in Cooperative Wireless Networks based on Combinatorial Optimization ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , April , 2011 . - Ferreira, L. S.; L. M. Correia; " Energy-Efficient Radio Resource Management in Self-Organised Multi-Radio Wireless Mesh Networks ", Proc IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , Toronto , Canada , September , 2011 . - Robalo, D.R.; J. Oliveira; F. J. Velez; V. Petrini; M. Barbiroli; C. Carciofi; P. Grazioso; F. Fuschini; " Experimental characterisation of WiMAX propagation in 107 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS different environments ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Holland, O.; O. Cabral; F. J. Velez; A. Aijaz; P. Pangalos; H. Aghvami; " Opportunistic Load and Spectrum Management for Mobile Communications Energy Efficiency ", Proc IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , toronto , Canada , September , 2011 . - Francisco, H. F.; P. Vieira; " QoS Control and Analysis for LTE Networks ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Ferreira, L. S.; L. M. Correia; " Radio Resource Management for Optimising MultiRadio Wireless Mesh Networks Deployments ", Proc IEEE Wireless Personal and Mobile Communications - WPMC , Brest , France , October , 2011 . - Sousa, I.; M.P. Queluz; A. J. Rodrigues; P. Vieira; " Realistic Mobility Modeling of Pedestrian Traffic in Wireless Networks ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Dionísio, R.P.; P. Marques; J. Rodriguez; " TV White Spaces Maps Computation through Interference Analysis ", Proc ICT Mobile and Wireless Communications Summit , Warsaw , Poland , June , 2011 . TRANSMISSION AND RECEPTION SYSTEMS Book Chapters - Neves, D.; C. Ribeiro; A. Silva; A. Gameiro; " Channel and Parameters Acquisition in Cooperative OFDM Schemes " - Chapter in Chapter in Wireless Technologies , ITech Education and Publishing , In-Tech , 2011 . - Silva, A. ; R. Holakouei Holakouei; A. Gameiro; " Multi-Cell Cooperation for Future Wireless Systems " - Chapter in Recent Advances in Wireless Communications and Networks , Jia-Chin Lin , In-Tech , 2011 . - Bonifácio, g; P.S André; N.B.C. Carvalho; " RESONANT WIRELESS POWER TRANSMISSION " - Chapter in Advances in Energy Research – Volume 8 , Morena V. Acosta , Nova Publisher , New york , 2011 . Papers in Journals - Carson, W.; M. Rodrigues ; I. J. Wassell; " Characterization of Demapper EXIT Functions with BEC a priori Information and Applications to BICM-ID ", IEEE Trans. on Communications , Vol. 59 , No. 11 , pp. 1 - 10 , November , 2011 . - Araújo, T. ; R. Dinis; " Loading techniques for OFDM systems with nonlinear distortion effects ", European Trans. on Telecommunications , Vol. PP , No. 99 , pp. 1 - 12 , December , 2011 . 108 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Castanheira, D.; A. Gameiro; A. Silva; " Minimum Bit Error Rate Nonlinear Precoding for Multiuser MIMO and High SNR ", Physical Communication-Elsevier , Vol. 4 , No. 4 , pp. 296 - 304 , December , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Multiuser precoding techniques for a distributed broadband wireless system ", Telecommunication Systems , Vol. 1 , No. 1 , pp. 1 - 1 , November , 2011 . - Sebastião, P.; A. Correia; " O que é a tecnologia LTE? ", Comunicações – Revista da Associação Portuguesa para o Desenvolvimento das Comunicações , pp. 26 - 28 , May , 2011 . - Araújo, T. ; R. Dinis; " On the Accuracy of the Gaussian Approximation for the Evaluation of Nonlinear Effects in OFDM Signals ", IEEE Trans. on Communications , Vol. PP , No. 99 , pp. 1 - 6 , December , 2011 . - Prabhu, V.; M. Rodrigues ; " On Wireless Channels With M-Antenna Eavesdroppers: Characterization of the Outage Probability and \epsilon–Outage Secrecy Capacity ", IEEE Trans. on Information Forensics and Security , Vol. 6 , No. 3 , pp. 853 - 860 , September , 2011 . - Sebastião, P.; F.C. Cercas; A. Cartaxo; " Performance of channel codes in wireless communication systems using efficient simulation ", IET Communications , Vol. 5 , No. 13 , pp. 1939 - 1946 , September , 2011 . - Silva, A. ; R. Holakouei Holakouei; A. Gameiro; " Power Allocation Strategies for Distributed Precoded Multicell Based Systems ", EURASIP Journal on Wireless Communications and Networking , Vol. 2011 , No. 2011 , pp. 1 - 1 , April , 2011 . - Wake, D. ; A. Nkansah; P. Assimakopoulos ; N. J. G. Gomes; M. Violas; Z. Liu; S. Pato; F. M. Ferreira; G. Valicourt; R. Brenot; " Rádio sobre Fibra ", Revista RTI Redes, Telecom e Instalações , pp. 52 - 63 , November , 2011 . - Cruz, P.M.; N.B.C. Carvalho; " Wideband Behavioral Model for Nonlinear Operation of Bandpass Sampling Receivers ", IEEE Trans. on Microwave Theory and Tech. , Vol. 59 , No. 4 , pp. 1006 - 1015 , April , 2011 . Papers in Conference Proceedings - Jang, W.; N.B.C. Carvalho; " Crest factor reduction through scaling and recovering by frame in OFDM communication systems ", Proc URSI General Assembly , Istanbul , Turkey , Vol. 2011 , pp. 1 - 4 , August , 2011 . - Neves, D.; C. Ribeiro; A. Silva; A. Gameiro; " A Pilot-Data Based Channel Estimation Method for OFDM Relay-Assisted Systems ", Proc IEEE Vehicular Technology Conf. - VTC-Fall , San Francisco , United States , Vol. 74th , pp. 1 - 5 , September , 2011 . 109 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Vieira, P.; " A Problem Based Learning Approach in Wireless Communications Teaching ", Proc World Engineering Education Flash Week , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , October , 2011 . - Carvalho, M.; P. Vieira; " An Enhanced Handover Oscillation Control Algorithm in LTE Self-Optimizing Networks ", Proc Wireless Personal Multimedia Communications Symp. - WPMC , Brest , France , Vol. 1 , pp. 1 - 1 , October , 2011 . - Neves, D.; A. Silva; C. Ribeiro; A. Gameiro; " An Iterative Pilot-Data Aided Estimator for OFDM-Based Relay-Assisted Systems ", Proc IEEE Latin-American Conf. on Communications - LATINCOM , Belem , Brazil , Vol. 1 , pp. 1 - 5 , November , 2011 . - Cercas, F.C.; D_Afonso Afonso; R. Dinis; R.Rodrigues Rodrigues; " Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , May , 2011 . - Ganhão, F.; R. Dinis; L. B. Bernardo; P. C. Carvalho; R. O. Oliveira; P. Pinto; " Analytical Performance Evaluation of SC-FDE Modulations with Packet Combining and Multipacket Detection Schemes ", Proc IEEE Vehicular Technology Conf. - VTCSpring , Budapest , Hungary , May , 2011 . - Cercas, F.C.; D_Afonso Afonso; R. Dinis; R.Rodrigues Rodrigues; " Correlation of Spreading Sequences Combined with Nonlinear OQPSK Signals ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , April , 2011 . - Reboredo, H.; M. Rodrigues ; J. Xavier; " Design of Filters For Reliable and Secure Communications: Conditional Mean Estimation at the Eavesdropper ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Lourenço, A. L.; N.S. Souto; R. Dinis; " Detection of Colliding Users in OFDM based Random Access Networks ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Distributed Precoding with Centralized Power Allocation Techniques for Multicell OFDM Systems ", Proc Wireless Personal Multimedia Communications Symp. - WPMC , Brest , France , Vol. 1 , pp. 1 - 1 , October , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Distributed Versus Centralized Zero-Forcing Precoding for Multicell OFDM Systems ", Proc IEEE GLOBECOM Workshops: Distributed Antenna Systems for Broadband Mobile Communication , Houston , United Kingdom , December , 2011 . - Monteiro, F. A.; I. J. Wassell; " Dual-Lattice-Aided MIMO Detection for Slow Fading Channels ", Proc IEEE International Symp. on Signal Processing and Information Technology - ISSPIT , Bilbao , Spain , pp. 464 - 469 , December , 2011. 110 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Ganhão, F.; M.P. Pereira; L. B. Bernardo; R. Dinis; R. O. Oliveira; P. Pinto; M. M. Macedo; P, Pereira ; " Energy efficient NDMA multi-packet detection with multiple power levels ", Proc Doctoral Conf. on Computing, Electrical and Industrial Systems - DOCEIS , Costa de Caparica , Portugal , February , 2011 . - Cruz, P.M.; N.B.C. Carvalho; " Enhanced Architecture to Increase the Dynamic Range of SDR Receivers ", Proc IEEE Radio and Wireless Symposium - RWS , Phoenix , United States , Vol. 1 , pp. 331 - 334 , January , 2011 . - Boban, M.; R. Meireles; J. Barros; O. Tonguz; P. Steenkiste; " Exploiting the Height of Vehicles in Vehicular Communication ", Proc IEEE Vehicular Networking Conf. (VNC) , Amsterdam , Netherlands , Vol. 3 , pp. 1 - 8 , November , 2011 . - Reboredo, H.; M. Ara; M. Rodrigues ; J. Xavier; " Filter Design with Secrecy Constraints: The Degraded Multiple-Input Multiple-Output Gaussian Wiretap Channel ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , May , 2011 . - Reboredo, H.; V. Prabhu; M. Rodrigues ; J. Xavier; " Filter design with secrecy constraints: The multiple-input multiple-output Gaussian wiretap channel with zero forcing receive filters ", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Prague , Czech Republic , May , 2011 . - Silva, P.; R. Dinis; " Frequency-Domain Multiuser Detection for Highly Overloaded DS-CDMA Systems ", Proc IEEE Vehicular Technology Conf. - VTC-Fall , San Francisco , United States , September , 2011 . - Sebastião, P.; F.C. Cercas; " Generalização do modelo de propagação LUI a cenários com túneis para as tecnologias Wi-Fi, GSM, UMTS, WiMAX e LTE ", Proc URSI Seminar of the Portuguese Committee , Lisbon , Portugal , November , 2011 . - Barroso, T.B.; J. Sanguino; A. J. Rodrigues; " Georeferencing for Coordinated Positioning Applications ", Proc Wireless Personal Multimedia Communications Symp. - WPMC , Brest , France , pp. 319 - 323 , October , 2011 . - Pedrosa, P.; R. Dinis; F. Nunes; " Joint Detection and CFO Estimation for QAM Constellations ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , May , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Linear Precoding for Centralized MultiCell MIMO Networks ", Proc IEEE Symp. on Computers and Communications (ISCC) , Corfu , Greece , June , 2011 . - Almeida, K. A.; P. Vieira; " Maximizing Performance using MIMO Techniques for 4th Generation Mobile Communication Systems ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Cruz, P.M.; N.B.C. Carvalho; " Multi-Carrier Wideband Nonlinear Behavioral Modeling for Cognitive Radio Receivers ", Proc European Microwave Week/European Microwave Conf. , Manchester , United Kingdom , October , 2011 . 111 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Sousa, F.; F. Nunes; " New Expressions for the Autocorrelation Function of Galileo Signals ", Proc European Navigation Conf. - ENC-GNSS , London , United Kingdom , Vol. I , pp. 1 - 15 , November , 2011 . - Ferreira, F. M.; S. Pato; H. A. Silva; P. Monteiro; " On supporting multiple signal formats over a FUTON system ", Proc Conf. on Optical Networks Design and Modelling - ONDM , Bologna , Italy , pp. 1 - 6 , February , 2011 . - Rodrigues , M.; " On the Constrained Capacity of Multi-Antenna Fading Coherent Channels With Discrete Inputs ", Proc IEEE International Symp. on Information Theory - ISIT , Saint-Petersburg , Russia , July , 2011 . - Cercas, F.C.; R.Rodrigues Rodrigues; D_Afonso Afonso; R. Dinis; " ON THE CORRELATION OF SPREADING SEQUENCES COMBINED WITH NONLINEAR OQPSK SIGNALS ", Proc IASTED International Conf. on Signal Processing, Pattern Recognition and Applications - SPPRA , Innsbruck , Austria , February , 2011 . - Almeida, A.; R. Dinis; F.C. Cercas; " ON THE USE OF TCH CODES IN ULTRAWIDE BAND SYSTEMS ", Proc IASTED International Conf. on Signal Processing, Pattern Recognition and Applications - SPPRA , Innsbruck , Austria , February , 2011 . - Nunes, F.; F. Sousa; J. Leitão; " Performance Analysis of Low-Complexity VDLL Architectures for GNSS Signals ", Proc European Navigation Conf. - ENC-GNSS , London , United Kingdom , Vol. 1 , pp. 1 - 13 , November , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Performance Evaluation of Distributed Precoding Schemes for Multicell OFDM Systems ", Proc IEEE Vehicular Technology Conf. - VTC-Fall , San Francisco , United States , Vol. 1 , pp. 1 - 1 , September , 2011 . - Holakouei, R. Holakouei; A. Silva; A. Gameiro; " Power Allocation Strategies for SVD Multicell MIMO-OFDM Based Systems ", Proc Wireless Telecommunications Symp. - WTS , New York , United States , April , 2011 . - Balseiro, F. B.; N.S. Souto; " Robust Channel Estimation for Broadband Satellite Communications ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Seguro, J. S.; P. G. Gomes; N.S. Souto; A. Correia; R. Dinis; " Rotation Matrices for OFDM Transmission ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Monteiro, F. A.; F. R. Kshischang; " Trellis detection for random lattices ", Proc International Symp. on Wireless Communication Systems - ISWCS , Aachen , Germany , Vol. - , pp. 755 - 759 , November , 2011 . - Trigo, G.; D. Donas-Boto; C. Silva; J. Sanguino; " Vehicle Heading Estimation Using a Two Low-Cost GPS Receiver Configuration ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , May , 2011 . 112 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - Kumar, Navin; Domingos Terra; Nuno Rafael Lourenço; L. Alves; R. L. Aguiar; " Visible Light Communication for Intelligent Transportation in Road Safety Application ", Proc IEEE IWCMC - IWCMC , Istanbul , Turkey , July , 2011 . - Carson, W.; M. Rodrigues ; F. Perez-Cruz Perez-Cruz; A. R. C. Calderbank; S. G. Goparaju; " When to add another dimension when communicating over MIMO channels ", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Prague , Czech Republic , Vol. 1 , pp. 1 - 1 , May , 2011 . 4.1.7 Other Achievements Prototypes - Caldeirinha, R.F.S.; N. Leonor; D. Ferreira; T.R. Fernandes; " A ray tracing based model using point scatterers for doubly selective radio channels ", ADCOD , November , 2011 . - Leonor, N.; R.F.S. Caldeirinha; " Low cost and portable radiation pattern measurement system at 2.4 GHz ", ESTG , June , 2011 . - Caldeirinha, R.F.S.; D. Ferreira; T.R. Fernandes; " Multi-frequency swept-time delay cross-correlation channel sounder for propagation studies ", STDCC , December , 2011 . - Kumar, Navin; L. Alves; R. L. Aguiar; " Prototype Design of Visible Light Communication for Road Safety ", 01 , October , 2011 . Patents - Serra, C. C. ; C. R. Medeiros; J.R. Costa; C. A. Fernandes; " Dispositivo com antena transparente integrada em espelho para sistema de identificação por rádiofrequência ", (Pending) PT 105477 , January , 2011 . Awards - Velez, F. J.; " Prémio ANACOM URSI Portugal 2011 ", (Menção honrosa) com o trabalho “Fixed WIMAX Profit Maximisation with Energy Saving Through Relay Sleep Modes and Cell Zooming “ , 01-10-2011 . - Kumar, Navin; R. L. Aguiar; L. Alves; " Fraunhofer Challenge 2011 ", Won Second prize in PhD category for the best Idea in PhD thesis work for session 2010-1011 , 01-10-2011 . - Leonor, N.; R.F.S. Caldeirinha; " Semi-finalist of the IEEE AP-S Student Design Contest 2011: Radiation Patterns on a Budget ", This paper presents a radiation pattern measurement system in order to evaluate 2.4GHz antennas. This 113 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS measurement system was built with the demand of being an inexpensive and easily reproducible system, lightweight and visually and user friendly. Prize of $1,500 , 01-06-2011 . - Kumar, Navin; Nuno Rafael Lourenço; L. Alves; R. L. Aguiar; " Visible Light Communication for Road Safety: Poster Award ", Awarded one of the best poster award in the Engineering Category at Annual Research Day at University of Aveiro , 01-06-2011 . - Fernandes, C. A.; " UTL/Santander Totta Award in the Electrotechnical Engineering area ", Honorable mention , 01-02-2011 . Miscellaneous - Velez, F. J.; M. del Camino Noguera; O. Holland; H. Aghvami; " National Delegate ", Fixed WiMAX Profit Maximisation with Energy Saving through Relay Sleep Modes and Cell Zooming ", COST IC1004 - Cooperative Radio Communications for Green Smart Environments TD(11) 02040 , 01-10-2011 . - Caldeirinha, R.F.S.; " MSc Thesis Jury ", Antena para Orientação Indoor ", Mariana Silva Cascalheira, University of Aveiro , 01-07-2011 . - Caldeirinha, R.F.S.; " MSc Thesis Jury ", Sistema de Localização Utilizando Redes sem Fios ", Carlos Miguel Cardoso Pereira, University of Aveiro , 01-07-2011 . - Barroca, N.; F. J. Velez; J.M. Ferro; Luis M. Borges; A. Lebres; " Seminars ", Block Acknowledgment Mechanism for Wireless Sensor Networks ", COST IC1004 Cooperative Radio Communications for Green Smart Environments , 01-06-2011 . - Barroca, N.; F. J. Velez; J.M. Ferro; Luis M. Borges; A. Lebres; " Tutorial ", 13º Seminário RTCM - Rede Temática de Comunicações Móveis ", ENERGY-AWARE WIRELESS SENSOR NETWORKS MAC MODELLING AND SIMULATION WITH EFFICIENT TRANSCEIVERS , 01-02-2011 . - Cabral, O.; F. Meucci Meucci; A. Mihovska; F. J. Velez; N. Prasad; " Seminars ", Integrated Common Radio Resource Management with Spectrum Aggregation over Non-Contiguous Frequency Bands ", COST TERRA- Techno-Economic Regulatory Framework for Radio Spectrum Access for Cognitive Radio Software Defined Radio , 01-01-2011 . - Pires, N.; " Invited Talks ", Ultrawide Band Antennas Design & Applications ", IEEE APS/EDS/MTTS Joint Chapter Portugal , 01-01-2011 . 114 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS 4.1.8 Other Contributions Conference Committees - Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Organizing Committee, Sérgio Almeida Matos, 01-01-2011 - European Microwave Week/European Microwave Conf., Sessions Chairman , Nuno Borges Carvalho, 01-01-2011 - National Conf. on Telecommunications (Peru), Technical Programme Committee, Fernando J. Velez, 01-01-2011 - IEEE International Symp. on Personal, Indoor and Mobile Radio Commun - PIMRC , Technical Programme Committee, Fernando J. Velez, 01-01-2011 - International Symp. on Applied Sciences in Biomedical and Communication Technologies - ISABEL, Technical Programme Committee, Fernando J. Velez, 01-012011 - Conf. da Engenharia - UBIEngenharias, Technical Programme Committee, Fernando J. Velez, 01-01-2011 - Conf. sobre Redes de Computadores - CRC, Technical Programme Committee, Fernando J. Velez, 01-01-2011 - International Conf. on Clifford Algebras and their Applications - ICCA9, Sessions Chairman , Sérgio Almeida Matos, 01-01-2011 - IEEE Vehicular Technology Conf. - VTC-Fall, Technical Programme Committee, Fernando J. Velez, 01-01-2011 - IEEE Intelligent Vehicles Symp. - IV, Sessions Chairman , Cristina Olaverri , 0101-2011 - IEEE Vehicular Technology Conf. - VTC-Fall, Technical Programme Chairman, Fernando J. Velez, 01-01-2011 - IEEE Vehicular Technology Conf. - VTC-Spring, Sessions Chairman , Fernando J. Velez, 01-01-2011 - International Conf. and Exhibition on Next Generation Mobile Applications, Services and Technologies - NGMAST, Technical Programme Committee, Fernando J. Velez, 01-01-2011 - IEEE Vehicular Technology Conf. - VTC-Spring, Technical Programme Committee, Fernando J. Velez, 01-01-2011 115 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS - IEEE International Symp. on Microwave Theory and Tech., Technical Programme Committee, Nuno Borges Carvalho, 01-01-2011 - IEEE Vehicular Technology Conf. - VTC-Spring, Technical Programme Committee, Américo Correia, 01-01-2011 - Conf. on Telecommunications - ConfTele, Conference Chairman, João Costa Freire, 01-01-2011 - IEEE Region 8 EUROCON 2011 International Conference on Computer as a Tool joint with the Conference on Telecommunications, Organizing Committee, Pedro Mendonça Santos, 01-01-2011 - EUROCON and CONFTELE 2011, Conference Chairman, João Costa Freire, 01-012011 - IEEE AP-S/URSI International Symp., Sessions Chairman , Jorge Rodrigues da Costa, 01-01-2011 - Celtic Plus Event 2011, Technical Programme Committee, Luís M. Correia, 01-012011 - Conf. on Electronics, Telecommunications and Computers - CETC, Conference Chairman, Paulo Alexandre Carapinha Marques, 01-01-2011 - IEEE Vehicular Technology Conf. - VTC-Spring, Technical Programme Committee, Rafael Caldeirinha, 01-05-2011 - EUROCON and CONFTELE 2011, Scientific Committee, Rafael Caldeirinha, 01-042011 - Conf. on Electronics, Telecommunications and Computers - CETC, Scientific Committee, Rafael Caldeirinha, 01-11-2011 - International Conf. on Wireless Information Networks and Systems - Winsys, Conference Chairman, Rafael Caldeirinha, 01-07-2011 - IEEE International Conf. on RFID-Technology and Applications, Technical Programme Committee, Pedro Miguel Cabral, 01-01-2011 - NEWCOM++ / COST 2100 Joint Workshop on Wireless Communications - JNCW, Technical Programme Committee, Fernando J. Velez, 01-01-2011 - Workshop on The Future Internet: The Social Nature of Technical Choices, Technical Programme Committee, Luís M. Correia, 01-01-2011 - Conf. on Electronics, Telecommunications and Computers - CETC, Technical Programme Committee, Paulo Alexandre Carapinha Marques, 01-01-2011 - International Conf. on Body Area Networks - BodyNets, Technical Programme 116 ANNUAL REPORT 2011 – WIRELESS COMMUNICATIONS Committee, Luís M. Correia, 01-01-2011 - ICST Conf. on Mobile Networks and Management (MONAMI), Technical Programme Committee, Luís M. Correia, 01-01-2011 - ICNIRP International Conf. on Non Ionizing Radiation and Childrens Health, Technical Programme Committee, Luís M. Correia, 01-01-2011 - Congresso Português de Protecção Contra Radiações - CPPCR, Technical Programme Committee, Luís M. Correia, 01-01-2011 - International Conf. on Cloud Computing and Services Science - CLOSER, Technical Programme Committee, Luís M. Correia, 01-01-2011 - URSI Commission F Triennial Open Symposium on Radio Wave Propagation and Remote Sensing, Technical Programme Committee, Luís M. Correia, 01-01-2011 - IEEE Region 8 EUROCON 2011 International Conference on Computer as a Tool joint with the Conference on Telecommunications, Sessions Chairman , Pedro Mendonça Santos, 01-01-2011 - CETC2011- Conf. on Electronics, Telecommunications and Computers , Technical Programme Committee, Pedro Vieira, 01-01-2011 - Canada Eu future internet workshop, Technical Programme Committee, Luís M. Correia, 01-01-2011 117 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS 4.2 Optical Communications 4.2.1 Area Coordinators Adolfo Cartaxo José Ferreira da Rocha 4.2.2 Human Resources Overview Degree Aveiro Coimbra Lisboa Full Professor 2 0 0 Associate Professor 2 1 3 Assistant Professor 6 2 4 Post. Doc. 6 0 2 Visiting Professor 1 0 0 PhD Student 25 3 3 (Licenciado) 2 0 0 44 6 12 TOTAL Table 14 - Overview of human resources in the Optical Communications Area in 2011 118 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Permanent Collaborators Position Associate Professor Associate Professor Assistant Professor Associate Professor PhD Degree Agregação Name Adolfo Cartaxo PhD António Teixeira PhD Armando Nolasco Pinto Agregação Associate Professor Assistant Professor Full Professor PhD Carlos Ferreira Fernandes Daniel Diogo Trindade Fonseca Henrique José A. Silva PhD João Pires Agregação João Lemos Pinto Agregação PhD Jorge Manuel Torres Pereira José Ferreira da Rocha Assistant Professor Assistant Professor Assistant Professor MSc PhD José Morgado PhD Luís Cancela PhD Manuel Violas Assistant Professor Assistant Professor Assistant Professor Post. Doc. PhD Marek Hajduczenia PhD Mário Lima PhD Natasa Pavlovic Agregação Paulo André Associate Professor Post. Doc. PhD Paulo Monteiro PhD Assistant Professor Post. Doc. PhD Rogério Nunes Nogueira Rui Sousa Ribeiro Associate Professor Full Professor PhD Marcelino Pousa PhD Tiago Manuel Ferreira Alves Group Optical Communications Photonics – Lx Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Lx Optical Communications Photonics – Lx Optical Communications Photonics – Co Optical Communications Photonics – Lx Optical Communications Photonics – Av Optical Communications Photonics – Lx Optical Communications Photonics – Av Optical Communications Photonics – Lx Optical Communications Photonics – Lx Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Co Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Av Optical Communications Photonics – Lx and and and and and and and and and and and and and and and and and and and and and and Table 15 – Permanent Collaborators working in the Optical Communications Area in 2011 119 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Other Collaborators Position PhD Student Degree MSc Name Álvaro José Caseiro de Almeida Group Optical Communications and Photonics – Av PhD Student MSc Ana Maria Sousa da Rocha Optical Communications and Photonics – Av PhD Student MSc Ana Oliveira Pratas e Sousa Optical Communications and Photonics – Av PhD Student Licenciatura Ana Patrícia Santos Ferreira Optical Communications and Photonics – Av PhD Student MSc Carlos Alberto Ferreira Marques Optical Communications and Photonics – Av PhD Student MSc Carlos Miguel Santos Vicente Optical Communications and Photonics – Av PhD Student MSc Cláudia Sofia Marcos Machado Reis Optical Communications and Photonics – Av PhD Student PhD Claunir Pavan Wireless Circuits – Av PhD Student MSc Fernando Pedro Pereira Guiomar Optical Communications and Photonics – Av PhD Student MSc Filipe Manuel Wiener Ferro de Carvalho Optical Communications and Photonics – Lx PhD Student MSc Filipe Marques Ferreira PhD Student MSc Visiting Professor PhD Student PhD MSc Jacklyn Dias Reis PhD Student MSc João Carlos de Melo Ferreira Assistant Professor Assistant Professor Post. Doc. MSc João da Silva Pereira PhD João Lopes Rebola PhD João Manuel Ferreira Pedro Optical Communications and Photonics – Co Hugo Filipe Teixeira Lima Optical Communications and Photonics – Av Hypolito José Kalinowsky Wireless Circuits – Av Optical Communications and Photonics – Av Optical Communications and Photonics – Av Optical Communications and Photonics – Co Optical Communications and Photonics – Lx Optical Communications and Photonics – Lx 120 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Position PhD Student Degree Licenciatura Name João Miguel Lopes dos Santos Group Optical Communications and Photonics – Lx Licenciado Licenciatura José Miguel Santos Optical Communications and Photonics – Av Wireless Circuits – Av PhD Student MSc Lara Penedo Pellegrino PhD Student PhD Lúcia Maria Botas Bilro PhD Student MSc Maria de Fátima Fonseca Domingues PhD Student MSc Miguel Ângelo Madureira Optical Communications and Photonics – Av Optical Communications and Photonics – Av PhD Student MSc Nélia Jordão Alberto PhD Student PhD Nelson Jesus C. Muga Optical Communications and Photonics – Av Optical Communications and Photonics – Av Optical Communications and Photonics – Av Wireless Circuits – Av PhD Student Licenciatura Nelson Manuel Simões Costa Optical Communications and Photonics – Lx PhD Student MSc Nuno Alexandre Peixoto Silva Optical Communications and Photonics – Av PhD Student MSc Paulo Alexandre Ferreirinha de Almeida Optical Communications and Photonics – Co PhD Student MSc Paulo Fernando da Costa Antunes Optical Communications and Photonics – Av PhD Student MSc Rogério Pais Dionísio Optical Communications and Photonics – Av Optical Communications and Photonics – Av Wireless Circuits – Av PhD Student Licenciatura Miguel Vidal Drummond PhD Student Rui Manuel Dias Morais Post. Doc. Licenciatura Rui Meleiro Assistant Professor Post. Doc. PhD Rui Pedro Oliveira Alves MSc Sérgio Junior PhD Student MSc Silvia Medeiros Vaz Pato Licenciado Licenciatura Teresa Almeida Post. Doc. MSc Tiago Silveira Optical Communications and Photonics – Av Optical Communications and Photonics – Av Optical Communications and Photonics – Co Wireless Circuits – Av Optical Communications and Photonics – Av 121 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Position PhD Student PhD Student Degree MSc Name Vítor Manuel Costa Ribeiro Group Optical Communications and Photonics – Av Zhansheng Liu Optical Communications and Photonics – Av Table 16 – Non-permanent Collaborators working in the Optical Communications Area in 2011 122 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS 4.2.3 Summary of Research Achievements 4.2.3.1 Contributing groups Optical Communications and Photonics – Av Optical Communications and Photonics – Co Optical Communications and Photonics – Lx 4.2.3.2 Scope and Objectives In the following, the achievements in the Optical Communications area are grouped, under three sub-areas: Optical Components and Subsystems Optical Communication Systems Optical Networking 4.2.3.3 Expertise and research topics for research Optical components and sub-systems The work carried out in this sub-area concentrated on the modeling, performance evaluation, optimization and implementation of key components and subsystems for all-optical networks. The dynamic transfer matrix method (TMM) has been numerically implemented in non-conventional DFB laser structures. Preliminary dynamic results concerning the transient behaviour of the output power and the emitted wavelength of an optimized asymmetric 3PS-DFB laser structure have been obtained. The frequency response of dual depletion InGaAs/InP PIN photodiodes was investigated in detail. The location of the drift region relative to the n and p contacts, the direction of the incident light and the bias voltage were taken into account in the numerical simulator model. The bandwidth results from the interplay between the transit time, in the drift and absorption region, and the capacitive effects and, for short devices, it is mostly independent of bias voltage because the capacitive effects are dominant. The bandwidth may be optimized by 123 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS an adequate choice of the absorption and drift region lengths and bias voltage, and takes larger values than for the conventional PIN structure. New techniques and new innovative devices based on fiber Bragg gratings (FBG) in micro-structured plastic optical fibers were developed for optical communications and sensing applications. Carbon allotropic (diamond and graphene) coated optical fiber devices were studied for sensing and communications applications. Optical fiber sensors were developed for: monitoring human joint angles, measuring water turbidity, hemodynamic assessment, monitoring the Madeira wine vinification process, measurement of refractive index and bending, viscosity and anion recognition. This work included novel plastic fiber sensors for refractive index and bending measurement. A fiber monitoring system, based on fiber sensors and wireless transmission was also optimized and developed. Some strategies were studied to mitigate the fiber fuse effect. This effect can have a deteriorating impact in practical cases where the optical power carried by an optical fiber is greater than a certain threshold. Power transmission over optical fiber was also studied and some experimental work performed. The following devices were optimized and developed for some specific functionality in optical communication systems and networks: - passive devices (Y-branch splitter and MZ modulators) for passive optical networks, based on sol-gel technologies; - an acoustic wave generator was used for optical fibers to be used in tunable filters; - optical filters for radio over fiber; - a novel photonic true-time delay beamforming system for phased array antennas. The system relies on tunable delay lines which are based on MachZehnder delay interferometers (MZDIs) with tunable coupling ratio; In the area of all optical signal processing, we showed that all-optical polarization control based on Raman scattering can be obtained over a wavelength range of 60 nm. The efficiency of the pulling process is higher close to the Raman gain peak. For shorter and longer wavelengths, higher pump powers are required in order to assure maximum efficiencies. Such polarization controllers provide a 124 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS very fast response time, overcoming an important drawback of polarization control schemes based on optoelectronic elements. We also studied the generation of two idler waves inside a high birefringent (HiBi) optical fiber through three four-wave mixing (FWM) processes. The coupledequations for the field amplitudes were derived and analytically solved, in the copolarized and orthogonal polarization schemes. Results show that the stimulated Raman scattering does not change the efficiency of the idler wave generation in the co-polarized scheme, whereas in the orthogonal polarization scheme the nonlinear process decreases the efficiency of the four-wave mixing processes. Work on all-optical signal processing for high bit rate optical networks covered the following aspects: advanced techniques for all-optical routing, tunable dispersion compensation, optical filtering, pulse shaping, clock recovery, optical code division multiplexing and regeneration. In the area of all-optical processing for ultra-high speed systems, we have carried out some work in deriving latching structures for implementation of all-optical memories. Work on all optical signal processing with SOAs has focused on the set-up of a lab experiment for evaluation of static RAM. The set-up is ready and measurements should start in the first quarter of 2012. An all-optical packet monitoring technique was derived and is now being simulated. Work on the experimental demonstration of this technique has started in order to give some more capabilities to the physical layer. 4.2.3.4 Optical communications systems In the area of equalization in high-bit rate optical communications, we proposed a non-iterative digital backward propagation technique, based on an inverse modified Volterra series transfer function to post-compensate linear and nonlinear transmission impairments in the presence of optical noise. Our compensation algorithm is able to surpass the maximum accuracy obtained with a symmetric split-step Fourier method, enabling us to increase the nonlinear tolerance by approximately 2 dB. Also some DSP algorithms were developed for coherent receiver applications. In addition, the study of techniques for impairment compensation in coherent communication systems based on memory polynomials was initiated. 125 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Work was carried out in the area of RoF transmission using directly modulated lasers. Studies of RF propagation over fiber included TDT, satellite (video) and multi-band OFDM-UWB radio signal transmission along long-reach PONs. These studies included simulation and experimental evaluation. Experimental evaluation concentrated on video over fiber (CWDM and DWDM) scenarios, compensation of non-linear laser response, amplification topologies, and transmission impairments. Research on RoF systems also focused on photonic techniques for generation of microwave and millimeter wave sub-carriers. The study of GPON standards and evolution to NGPON involved topologies and modulation formats. Work was also carried out regarding scenarios and technologies to support XGPON (extended reach GPON). Some efforts were dedicated to the study of performance degradation of optical single sideband signals in the case of direct detection. The topic of optical transmission systems based on mode group diversity was identified as having a large potential. A digital simulator for the propagation in multimode fibers was developed, which takes into account modal coupling at fiber imperfections and splices between single mode and multimode fibers. A nonlinear model for pulse propagation in multimode fibers with reduced radius, which supports a small number of modes, has also been developed. In the area of quantum cryptography, we have derived novel analytical expressions to estimate the quantum bit-error rate (QBER), in quantum key distribution (QKD) systems based on polarization encoding with single-photons state of polarization (SOP). Such expressions are in agreement with experimental results. We have also shown that the de-correlation between the reference and data signals is the fundamental impairment in the implementation of WDM based SOP control schemes. This makes mandatory the use of low PMD fibers in order to achieve large distances with a low QBER. The search for new CDMA codes has been pursued, by exploring their applicability in access networks with coherent modulation and detection. A moment generating function of the signal at the output of direct-detection optically pre-amplified OFDM receiver, relying on the uncorrelation of signal samples at the receiver fast Fourier transform block input, was proposed to 126 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS assess the performance of direct detection OFDM receivers. The development of an accurate moment generating function that takes into account the correlation between the signal samples at the receiver fast Fourier transform block input for the same kind of receivers was initiated. A photonic analog-to-digital conversion (Ph-ADC) structure based on wavelength division multiplexing (WDM) was investigated, and its performance was compared with the performance of the Ph-ADC photonic structure based on time division multiplexing. 4.2.3.5 Optical networking The work on access networks has continued, with special emphasis on next generation PONs and their convergence/integration with MANs. Wired-wireless converged next generation optical access networks were investigated. The coexistence of multi-format OFDM-based signals (custom OFDM signal bearing Gigabit Ethernet data, WiMAX, LTE, UWB sub-bands) in long-reach PONs (LR-PONs) using directly modulated lasers and externally modulated lasers was studied numerically and experimentally. Schemes for centralized broadband impairment compensation at the central office of such multi- services/signals LR-PONs were proposed and assessed experimentally considering single wavelength and multi-wavelength transmission. Linearization improvement of directly and externally modulated LR-PONs achieved by using digital pre-distortion of those multi-octave OFDM-based signals was investigated numerically and experimentally. Several achievements were obtained in the area of FTTH. António Teixeira has been appointed IEEE and FSAN/ITU representative for next generation PON's. Marek Hajduczenia also participates actively as editor in the standardization activities of IEEE 802.3 (focus on the physical layer of EPON systems) and IEEE 1904.1 (focus on logical layer and service layer interoperability of EPON systems) as well as in major IEEE projects, namely P802.3bf (focused on development of standard interfaces for all types of Ethernet physical layers; chief editor) and DOCSIS (Evolution of Cable Networks). Therefore, several contributions have been made as regards standards organizations. 127 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Raman amplification was studied in the context of PON applications and optical powering of remote nodes was demonstrated. Raman amplification was also analyzed for optical burst switched networks and comparisons (experimentally and by simulation) were made with other amplification technologies (EDFAs and SOAs). In the area of RoF systems, several techniques were investigated for simultaneous transport of different services in the baseband and in several microwave and millimeter wave bands, and for the optimum operating conditions for supporting multiple radio channels over a SCM-based distributed antenna system. In the case of optical network dimensioning, we developed a genetic algorithm for the topological design of survivable optical transport networks, with minimum capital expenditure. Using the developed genetic algorithm, we could obtain nearoptimal topologies in a short time. The quality of the obtained solutions was assessed using an integer linear programming model. Results obtained using real telecommunications networks show that by using an initial population that resembles real optical transport networks a good convergence is achieved. Work on optical burst-switched networks continued in 2011. Strategies to deal with quality-of-service differentiation in OBS networks have been proposed. An optimization framework for designing optical transport networks in environments with mixed line rate demands (40 Gb/s and 100 Gb/s), aiming at the minimization of the network cost, by taking into account aspects such as grooming, virtual concatenation and regenerator placement has been continued. A planning tool to design multi-stage passive optical networks, which includes the proposal of an integer linear programming model and an efficient heuristic to deal with the optimization problem, has been developed. In the area of physical layer impairments in optical networks, the influence of crosstalk-crosstalk beat noise on optical DPSK systems performance was investigated, the behavior of eigen-functions and eigen-vectors in those systems was studied, and the impact of in-band crosstalk in the performance of those systems was evaluated using Monte Carlo simulation. 128 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS 4.2.4 Running and Concluded Projects Overview Funding Agency Number ESF, COST 2 EU, FP7 1 FCT 1 FCT/GRICES 1 FCT/PTDC 10 IT 4 JustBit 1 Nokia Siemens Networks 1 PT-Inovação 2 QREN, PT-Inovação 2 QREN, Televés 1 Table 17 - Number of active projects in the Optical Communications Area in 2011 129 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Activity in Projects Acron / Ref (NeCiRA) Title New Challenges in Raman amplification Funding FCT/GRICES Descript. The major objective of this project is to study the new challenges impose by Raman amplification in optical communications. In particular, the questions related with temporal and spectral transients. Another relevant aspect of this amplification scheme is the fibre catastrophic fuse effect, responsible by the fibre destruction due to the high injected optical power. Acron / Ref Title AdaptDig Adaptive Digital Compensation in Access and Transport Optical Networks Funding PT-Inovação Descript. Design, implement and validate efficient algorithms for digital poscompensation for access and transport optical networks. Acron / Ref ANION Title Optical Sensors and Nanomaterials for Anion Recognition Funding FCT/PTDC Descript. The main goal of this project is to develop novel anion host materials, with adequate structural features, for biomedical, environmental and sensing applications. Based on our interest in the development of an efficient technology for water treatment we considered the possibility of supporting the most promising anion receptors on magnetic nanoparticles, allowing their recovery using external magnetic forces. Another goal will be the construction of a 130 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS refractive index sensor based on tilted fiber Bragg gratings (TFBG)functionalized by the most efficient synthesized hosts or by gold nanoparticles wrapped also with anion hosts. These efforts will be pursued in order to evaluate the potential applications of these molecules and the resultant materials to be used as anion receptors. This proposal aims five specific objectives having the overall goal of exploiting the anion properties of new hosts that are stated below: (Aim 1) develop robust precursors or platforms that enable rapid development of new compounds, and build up the target receptors based on porphyrin related compounds; (Aim 2) develop new sensors based on smaller and cheaper commercial reagents like triazine and perfluorinated derivatives. Such new materials should be able to host different types of anions in selective and efficient ways, through their cavities or clefts; (Aim the 3) anion assessing screen the binding properties their most hypothetic promising of all advantage new as materials, evaluating compounds/materials; novel anion binding agents, when compared with the present technologies; (Aim 4) prepare new nanomaterials, based on magnetic nanoparticles covered with small and cheap hosts, that can be recovered and reused; (Aim 5) translate the anion binding results in solution into the construction of novel optical fiber sensors, by wrapping a thinned fiber Bragg gratings with the best selective anion hosts synthesized, covalently or supramolecularly. Acron / Ref CITO Title CITO Funding IT Descript. Objectiva o estudo de potenciais soluções para compressão de imagem totalmente optica com base em transformadas. 131 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref CONLUZ Title Steering of light in nonlinear waveguides with resonant interactions Funding FCT/PTDC Descript. This project aims to study the steering of light in different nonlinear systems with internal resonances. Nowadays such systems attract a great deal of attention because modern technologies allow to produce devices where internal resonant interactions between light and material excitations result in huge optical nonlinearities, providing a rich plethora of nonlinear effects at relatively low power. These huge nonlinearities and the flexibility of physical parameters make such devices very attractive for different practical applications, including guidance of light, information processing, and generation of new frequencies. In addition, such systems constitute laboratories to study fundamental nonlinear phenomena. This project addresses several kinds of physical systems and devices. We consider hollow-core photonic crystal fibers filled with gases of multi-level atoms whose resonant frequencies match the frequency band guided through the fiber. In these systems, the matter-light interactions are not only strong because of their resonant nature, but are also easily manageable through the control of the coupling field on the other hand. Systematic investigation of the nonlinear dynamics will be undertook, starting from the study of the propagation of the continuous radiation in simple geometries, but also looking into the dynamics of short pulses, to the formation of optical solitons, and to their mutual interactions in more sophisticated geometries, like coupled waveguides, networks of waveguides, couplers, etc.. The formation and stability of solitons, representing coupled states of light and matter, i.e. a kind of polaritons, is expected to be strongly affected by the waveguide characteristics and by the material dispersion of the media. Hence, it will be explored how the propagation of short pulses can be steered by the slowly varying quasi-continuous waves and by additional short pulses. Effective 132 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS models describing linear and nonlinear effects by taking into account the quantum mechanical description of the interactions will be developed, giving special attention to the impact in the propagation of solitons of dissipation, particularly dissipation due to spontaneous emission from the excited states of the multilevel atoms, material losses and imperfect guidance of the light. When dissipation is weak enough we can speak about quasi-solitons propagating at long distances, whereas in the quantum regime, when dissipation is strong enough, we can expect manifestations of the Zeno effect. We also investigate how the dissipation affects not only the maximum propagation distance of the solitons, but also their shapes and stability. Technologically it is possible to manufacture a multi-core fiber filled with active gases. For these fibers, it is important to study the interaction between the pulses propagating in the neighbouring cores and find out the conditions of effective energy transference between modes. We plan to address this problem analytically and by extensive numerical simulations. We also investigate semiconductor microstructured systems, which are another important kind of the waveguiding systems produced on semiconductor chips. The main advantages of these systems are their small sizes and the possibility to pump them by external continuous sources of the light. Cavity solitons can survive in these systems until the pump is switched off. The bright and dark solitons can be controlled by the pump and by weak control signals. This type of systems can be used as optical memories and for information processing, as well as, on the generation of new frequencies. We also consider systems consisting of a semiconductor thin film which serve as planar waveguide for the light and can be pumped by a coherent light due of imperfect guidance. The resonant nonlinearity arises from stimulating excitons with resonant frequency coinciding with the cut-off frequency of the planar waveguide. Consequently, it is possible to excite quasiparticles with very low group velocities, commonly known as polaritons and resulting from the resonant coupling of light and mater excitations, which provides very strong nonlinearities. This allows the formation of resting or slow moving localized 133 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS optical structures at low pumping powers. Meta-material waveguiding systems consisting of weakly nonlinear dielectric films with build in metallic nanoparticles are also considered. The nanoparticles provide polariton resonances playing a role similar to the exciton resonances. These systems will be modelled rigorously, starting from basic quantum-mechanical theory. We will investigate the dynamics of the solitons in detail using analytical and numerical methods. The possibility of controlling the solitons by weak perturbations of the pump, as well as, the resonant mutual interaction between cavity solitons and between the solitons and quasi-linear waves will also be investigated. Acron / Ref CONTACT Title Components and techniques for high capacity optical communications Funding FCT/PTDC Descript. A) Main aims and expected results - Development and production of a set of novel low cost components for optical systems (lasers, filters, BGW, optical cavities for clock recovering etc) - Development of innovative concepts and architectures for optimized optical systems, dependant such architectures, has energy integrated scavenging, functions polarization through advanced devices in fiber or integrated optics, such as tuneable header recognition and processing for all-optical routers. - Develop new concepts, ideas, strategies and architectures for the transmission above 100Gbit/s and beyond 8Tbit/s; - Test the new components and architectures in “real world” applications. 134 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref Title FIVER Fully-Converged Quintuple-Play Integrated Optical-Wireless Access Architectures Funding EU, FP7 Descript. i) to propose a streamlined optical access and radio network architecture with extended range, simplified implementation and deployment; ii) to develop combined fibre and radio transmission centralised impairment compensation extending the FTTH range to > 100 km; iii) to enable single, end-to-end management architecture along the FTTH access network of the complete photonic and radio access paths; iv) to provide converger OFDM-baseband, medium-range WiMAX and short-range UWB and cellular LTE on a conventional wavelength division-duplexed (WDD) and a reflective-electroabsorption transceiver (R-EAT) based network architecture; v) to demonstrate the feasible network operation with signals (UWB) in the 60 GHz radio band; vi) to create an open house showroom in order to shown the approach benefits to the general public. Acron / Ref Title IC1101 COST IC1101 - Optical Wireless Communications - An Emerging Technology Funding ESF, COST Descript. Wireless transmission via optical carriers opens doors of opportunity in areas as yet largely unexplored. Offering significant technical and operational advantages, optical wireless communication (OWC) can be, in some applications, a powerful alternative to and, in others, complementary to existing radio frequency (RF) wireless systems. Variations of OWC can be employed in a diverse range of communication applications ranging from very short-range (on the order of millimetres) optical interconnects within integrated circuits 135 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS through outdoor inter-building links (on the order of kilometres) to satellite links (larger than 10,000 kilometres). In many respects, OWC research is still in its infancy and calls for extensive research to begin to harness the enormous potential of the optical spectrum. This COST Action will serve as a high-profile consolidated European scientific platform for interdisciplinary OWC research activities, spanning from characterization of diverse propagation media to modeling, design and algorithms/protocols development and systems. of It devices, will components, make significant contributions to the fundamental scientific understanding, technical knowledge, engineering design and applications while promoting community awareness of this emerging field. Development of novel and efficient communication technologies resulting from integrated research activities made possible through this Action will be a significant enabler communication for networks future-generation supporting a wide heterogeneous range of wireless services/applications. Acron / Ref Title IXOS3D In-band crosstalk in optical communications systems with differential direct detection Funding IT Descript. This project is within the optical communication networks area. In particular, in the area that studies the physical constraints in optical networks. One of the most severe limitations in the network physical layer is crosstalk. This phenomenon has its origin, primarily, in the imperfect isolation of optical components, such as optical switches, multiplexers, and demultiplexers, that are key components in the design of an optical node. The type of crosstalk that causes the higher degradation to the system performance is the in-band crosstalk, in which the interfering (crosstalk) signals and the selected signal, despite coming from distinct optical sources, have the same nominal wavelength. 136 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS The main objectives of this project are: * Develop a formalism to evaluate the impact of in-band crosstalk in optical DQPSK systems. * Evaluate the impact of in-band crosstalk in a DPSK and DQPSK systems when the signal propagates through an optical network. Each optical node is formed by an optical switching architecture, optical amplifiers, optical filters, and possibly wavelength converters. * Implement Monte Carlo (MC) simulation to study the impact of ASE noise and in-band crosstalk on the performance of DPSK and DQPSK systems and confirm the analytical results. * Implement the multicanonical Monte Carlo (MMC) method to simulate the tails of the probability density function of the decision variable and to obtain lower values of the bit error rate (BER) than in the MC standard procedure. * Evaluate by simulation the impact of in-band crosstalk in optical networks with DPSK and DQPSK signals, for a rigorous model of the optical node and validate the analytical tool developed for this case. Acron / Ref NESH Title Development of novell sensors for hemodynamics characterization Funding FCT/PTDC Descript. Development of novell sensors for hemodynamics characterization Acron / Ref NGTVD Title Next generation Digital Tv over Fiber Funding QREN, Televés Descript. DEvelop a cost effective multi polarization optical fiber transciever for next generation TV distribution in Short haul. 137 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref NET-OPT Title NET-OPT - Network Optimization Funding Nokia Siemens Networks Descript. Optimize the design and operation of optical transport networks with relation to energy consumption and spectral efficiency. Acron / Ref NG-COS Title Next-Generation Coherent Optical Communication Systems Funding IT Descript. - To develop cost-effective solutions for extraction of phase and amplitude information from the optical field, using advanced signal processing techniques to reduce the hardware requirements associated with coherent detection; - To develop and implement efficient and simplified digital postcompensation algorithms using the phase and amplitude information of the optical field in order to enable real-time mitigation of linear and nonlinear propagation impairments, with low computational power; Future high-speed optical communication systems will inevitably rely on new enabling technologies such as advanced modulation formats, coherent detection and receiver-side digital signal processing. In order to apply these technologies to commercial optical communication systems there must be a strong I&D effort to develop efficient and low-cost solutions. This is currently a fast growing investigation topic, which need to be faced in many different fronts, such as: - Study of propagation and receiver performance of different advanced modulation formats; - Analysis of network architectures and optical devices in order to 138 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS reduce the impact of propagation impairments; - Development of efficient and cost-effective solutions for coherent detection both in metro and access networks; - Development of digital adaptive post-compensation algorithms for the mitigation of linear and nonlinear impairments. Within the framework of this project we will focus mainly on the development of cost-effective coherent receivers, using advanced digital signal processing techniques in order to reduce the hardware requirements. Besides, taking advantage of the amplitude and phase information provided by coherent detection, we are also going to develop digital post-compensation algorithms, in order to simultaneously enable higher bit-rates, narrower inter-channel spacing and longer propagation distances without sacrificing the received signal quality. Acron / Ref Title OREO3 Organic-inorganic hybrids with enhanced light properties for the new generation of optical communications Funding FCT/PTDC Descript. This project aims at the design-assisted synthesis and processing of organic/inorganic hybrid materials with enhanced light-emitting features and their applications in the new generation of optical telecommunications (as passive and active structures). Passive elements (such as planar and channel waveguides, couplers and multimode interference splitters) will be developed based on the nondoped hybrid matrices, whereas organic dyes and/or lanthanide (Ln3+) ions will be used for active components (namely optical amplifiers). 139 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref OSP-HNLF Title OSP-HNLF - Optical Signal Processing Using Highly Nonlinear Fibers Funding FCT/PTDC Descript. We will fabricate and characterize highly nonlinear fibers obtained by tapering standard optical fibers. Highly nonlinear fibers will be used to produce a super-continuum and to implement two all-optical signal processing devices: i) an all-optical signal regenerator for intensity modulated signals based on self-phase modulation (SPM) and ii) an all-optical signal processing regenerator for nonlinear phase noise reduction based on four-wave mixing (FWM) suitable to be used in phase modulated signals. An accurate numerical modelling and the design optimization of both tapered fibers (TFs) and microstrutured fibers (MFs) will be realized, in the perspective of their use to generate a wide and flat super-continnum, as well as some nonlinearity-based optical signal processing functions, namely the wavelength conversion, all-optical switching and 2R regeneration. Acron / Ref Title PosDig Digital Post-Compensation of Chromatic Dispersion and Nonlinearities in Optical Communication Systems Funding PT-Inovação Descript. Design, implement and validate efficient algorithms for digital poscompensation of chromatic dispersion and nonlinearities in optical communication systems Acron / Ref RoFnet Title Reconfigurable Radio over Fiber network – RoFnet Funding FCT/PTDC Descript. The overall objective of the project is to develop and demonstrate the feasibility of a novel cost effective RoF system architecture that uses 140 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS the benefits of combining optical networking concepts with fiber radio techniques to efficiently manage the network resource usage and to allow flexible wavelength allocation for the BSs, depending on user requirements and QoS. To achieve the overall goal of the project we identify the following interim objectives: -Identification of novel network architectures suited for RoF systems, combining low complexity with flexibility and cost effectiveness; -To develop and demonstrate the feasibility of a new low cost BS architecture, which uses a RSOA; -To assess the transmission impairments of wavelength division multiplexed (WDM) systems combined with subcarrier multiplexing and employing optical single side band modulation (OSSB); -To develop wavelength allocation algorithms able to allocate network resources depending on varying user demand and QoS: - To liaise with other European projects in order to understand and possibly integrate relevant developments. Acron / Ref SMART Title Remote Structure Health Monitoring Funding JustBit Descript. The objective of this project is to develop techniques for the remote monitoring of structures. For the trial, two viaducts will be monitored with several fiber sensors developed at IT. A prototype will be placed remotely for the interrogation of all sensors. It will collect real time data of deformation and temperature and give alarms if critical thresholds are triggered 141 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref P-Quantum Title Practical Quantum Communications Funding IT Descript. - To perform a field trial experiment over installed fibers in the city of Aveiro, using single and entangled photon-pairs to implement quantum protocols for message authentication and fair contract signing; - To propose quantum protocols suitable for real quantum channels, for privacy problems that cannot be solved with quantum key distribution, namely the authentication of messages and fair contract signing. - To develop the interest and expertise in quantum telecommunications in Portugal, both at the theoretical and the experimental levels, in order to develop internationally-competitive research and train new human resources in this new and strategically important area for secure telecommunications. Acron / Ref TOMAR-PON Title Techniques Of Modulation And Remodulation for PON Funding FCT/PTDC Descript. This project targets the performance enhancement of passive optical network (PON). The two key performances that this project aims at improving are the capacity and reach of PONs. Thus, the extended reach wavelength division multiplexing (WDM) PON with increased bit rate up to the Ethernet rates of 100Gb/s and with the bidirectional transmission will be investigated. The project intends to improve the two crucial elements of PONs, the central office and the optical network unit (ONU), by means of investigating the optimum modulation and remodulation techniques for these systems, since they constitute pillars of such a cost-sensitive segment. 142 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Acron / Ref TURBO Title Transmission of UltRa wide-Band radio signals over Optical fibre Funding FCT/PTDC Descript. This project proposes to investigate the performance impairments of the orthogonal frequency division multiplexing ultra wideband (OFDMUWB) radio signal transmission in fiber-to-the-home (FTTH) networks and optimize the system parameters through analytical and numerical simulation work, and to experimentally demonstrate the main results obtained. Particularly, the study and the assessment of the main system impairments is performed, such as: (i) electrical crosstalk associated with multi-channel OFDM-UWB transmission, (ii) linear and non-linear fibre effects, (iii) optical crosstalk associated with the transmission of several optical channels using dense wavelength division multiplexing (DWDM). Different techniques to reduce the performance degradation caused by such limitations are also investigated. The work to carry out along this project targets the transmission of OFDM-UWB radio signals in FTTH networks using external modulation (EM) and direct modulation (DM) of the emitter laser. The transmission of OFDM-UWB radio signals over multi-mode fibre is also a topic to be investigated in the project, since this type of fibre is used in the user’s premises due to its easy maintenance and utilization. 143 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS 4.2.5 Running and Concluded Theses MSc Theses Supervisor Adolfo Cartaxo António Teixeira Paulo André Student Co- Supervisors Paulo André Gabisa Bekele António Teixeira Daniel Vieira Luís Cancela Rui Batalha Mário Lima Mário Lima 6/2011 Estado da resposta transitória de amplificadores ópticos 7/2011 Cenários de migração para XGPON1 Paulo André Carlos Eduardo da Costa António Silva Estudo e teste de uma rede EPON_ Estudo Comparativo entre sistemas RoF com modulação directa e com modulação externa Geração e propagação de sinais rádio sobre fibra óptica Optimization of IPTV Distribution Redução das emissões de CO2 em redes ópticas Paulo André Licínio Ferreira Humberto Varum Paulo André MArco Granada Mário Lima António Teixeira Hugo Borges dos Mário Lima Santos Lopes Simao Pedro Mário Lima Tavares Brandao Hugo Rodrigues Mário Lima Braz de Carvalho João Manuel Ferreira Pedro João Pires Bruno Caseiro António Teixeira Ricardo Manuel Mário Lima da Silva Ferreira 11/2011 12 /2011 12/2011 12/2011 Photon-Pairs Generation Through FourWave Mixing 12/2011 Monte-Carlo simulation of an optical Genádio Martins João Lopes Rebola DQPSK system impaired by crosstalk António Teixeira 9/2011 Wireless Optical Communications based 9/2011 on White LEDs Luís Cancela António Teixeira 8/2011 GMPLS-controlled OBS network simulator: implementation of the OSPF 9/2011 protocol Celestino Sanches Martins Jose Pedro António Teixeira Oliveira Mário Lima Rodrigues Ruben Fernando Pedro Renato Cavalheiro Tavares Pinho Jeronimo Pedro Renato Márcio José Reis Tavares Pinho Silva Almeida Tiago Rafael Armando Nolasco Ferreira Marques Pinto Pisco Pedro Renato Tavares Pinho Geração e propagação de sinais rádio sobre fibra (RoF)_ Simulation of optical amplification in plastic optical fiber Henrique José A. Silva Armando Nolasco Luís Miguel Pais Pinto Pinto Martins End Date Transmission of OFDM-UWB radio signals in FTTH networks using directly 5/2011 modulated lasers Inês Marques Dias Paulo Jorge Afonso de Andrade Telmo David Pelicano de Almeida Title Monitorização do processo de cura do betão com sensores ópticos 12/2011 4/2012 5/2012 Transporte de energia em fibras ópticas 5/2012 2 Convivência de gerações em redes 6/2012 ópticas PON. Distribuição de Sinais Rádio e Vídeo 6/2012 sobre Fibra_ Distribuição de vídeo em redes ópticas 6/2012 PON Optimized design of multi-rate optical networks with intermediate 6/2012 aggregation Redes ópticas de próxima geração – 6/2012 formatos de modulação 144 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Supervisor António Teixeira António Teixeira Henrique José A. Silva Paulo André António Teixeira António Teixeira António Teixeira Luís Cancela Student Co- Supervisors Carlos Manuel Da Mário Lima Silva Oliveira Tiago Miguel Da Paz Santos Mário Lima Mendes Filipa Raquel Gois Lopes Maria Rute Sandra Correia Ferreira André Goncalo Amorim Ribeiro Gomes Mário Lima Pereira José Ferreira da Cristiana Santos Rocha João André Rodrigues Mário Lima Antunes Carlos Jorge João Lopes Rebola Morais Fraga João Pires Afonso Oliveira João Manuel Ferreira Pedro João Pires Bruno Henriques João Manuel Ferreira Pedro Pedro Renato Tavares Pinho Nuno Miguel dos Santos Mendes Paulo André Pedro Sena Maria Rute Ferreira André Pedro Renato Tavares Pinho Andreia Sofia Reis Mouta Pedro Miguel Pedro Renato Fernandes Tavares Pinho Soares Daniel Hugo Armando Nolasco Gonçalves Pinto Martins Sofia Batalha de Armando Nolasco Oliveira Pascoal Pinto Amado Barbara Salome António Teixeira Ribeiro de Mário Lima Almeida Title End Date Redes ópticas passivas de alcance estendido 6/2012 Redes ópticas passivas de operação estendida 6/2012 All-Optical Static RAM Cell with Read/Write functionality Híbridos orgânicos-inorgânicos para monitorização óptica biomédica 7/2012 8/2012 Arquitectura WDM-PON baseada em components Sintonizáveis 9/2012 Redes de acesso baseadas em formatos de modulação avançados 9/2012 Segurança em Redes ópticas_ 9/2012 Analysis of in-band crosstalk impact in optical burst switching networks Designing and optimization of heterogeneous OTN/DWDM networks with intermediate aggregation. Optimization and multilayer planning of IP/MPLS/OTN networks Análise Tecno-Económica em Telecomunicações - FTTx Concentradores solares luminescentes baseados em Materiais Híbridos Orgânicos-Inorgânicos Distribuição de Sinais Rádio e Vídeo sobre Fibra 10/2012 10/2012 11/2012 12/2012 12/2012 12/2012 Fibras ópticas de plástico 12/2012 IPTV Deliverer over MPLS-TP 12/2012 Packet-Based Transport Networks 12/2012 Redes opticas passivas avançadas e de 12/2012 cobertura extendida NG-PON2 Table 18 - List of MSc Theses running in the Optical Communications Area during 2011 PhD Theses Supervisor Student João Pires João Pedro Rogério Nunes Nogueira Lucia Bilro Co- Supervisors Paulo Monteiro Title End Date Contention Minimization Strategies for Optical Burst-Switched Networks 1/2011 Optical Metrology in Medicine and Rehabilitation, Optical Metrology in Medicine and Rehabilitation 2/2011 145 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Supervisor Student Co- Supervisors Rogério Nunes Nogueira Nelia Alberto Armando Nolasco Pinto Claunir Pavan José Ferreira da Rocha Paulo Monteiro Miguel Vidal Drummond Rogério Nunes Nogueira Adolfo Cartaxo Tiago Manuel Ferreira Alves Armando Nolasco Pinto Nelson de Jesus Corderio Muga Henrique José A. Silva Paulo Fernando da Costa Antunes Sílvia Medeiros Vaz Pato Paulo André Ana Maria Rocha Paulo André Carlos Miguel Vicente Henrique José A. Silva João da Silva Pereira António Teixeira Jacklyn Dias António Teixeira Muneer Zuhdi Paulo André Rogério Nunes Nogueira Rogério Nunes Nogueira Luís Sá Title Biosensors based on Fiber Bragg Gratings, Biosensors based on Fiber Bragg Gratings Dimensioning Multi-Layers Optical Networks 3/2011 9/2011 Ultra wideband radio signal systems along optical fibre 11/2011 Polarization Effects in Fiber Optics Communication Systems 12/2011 Next Generation Optical Access Networks Estudo da Degradação de fibras ópticas sob o efeito de potências elevadas Hibridos Orgânicos/inorgânicos para aplicações de baixo custo em óptica integrada Spread Spectrum in Access and Metropolitan Networks WDM flexible networks Paulo André 3/2011 All optical processing in fibre optical communication systems Sensores ópticos para monitorização dinâmica de estruturas Maria Rute Ferreira André End Date Blue ocean Strategy in current optical communications Energy consumption in communications networks 12/2011 3/2012 5/2012 5/2012 6/2012 7/2012 9/2012 9/2012 Bernardo Veiga Techno-economics in scientific projects Henrique José A. Silva Filipe Marques Ferreira Paulo Monteiro High Capacity Optical Transmission Systems based on Mode Group Diversity 10/2012 Multiplexing Paulo André Lara Penedo Pellegrino Paulo Monteiro Henrique José A. Silva Paulo Alexandre Ferreirinha de Almeida Rogério Nunes Nogueira Hugo Lima António Teixeira Rogério Dionísio Rogério Nunes Nogueira António Teixeira Claudia Reis Paulo André Rogério Nunes Nogueira Nuno Ferreira António Teixeira Adballa Abdelgader Adolfo Cartaxo Nelson Manuel Daniel Diogo Optical fibre telecommunication systems 12/2012 Simões da Costa Trindade Fonseca with multi-symbol phase modulation Mário Lima, 9/2012 Integrated multi-functional photonic devices for optical communication purposes 10/2012 Radio Over Fibre Systems with Support for Fixed and Mobile services 10/2012 Advanced Fiber Sensors, Advanced Fiber 12/2012 Sensors Advanced optical generation and regeneration 12/2012 All-optical routing funcionalities Local crystalization of LiNbO3 for the production of low cost optical devices Next generation optical converged networks 12/2012 12/2012 12/2012 146 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Supervisor Student Co- Supervisors Title End Date João Pires João Santos Paulo Monteiro Physical and logical aspects of Ethernet over WDM networks supported in ring topologies, 12/2012 Armando Nolasco Pinto João Carlos de Melo Ferreira Paulo Monteiro Transient Effects in Optical Networks 12/2012 Manuel Violas Mojtaba Sadeghi Atílio Gameiro Radio-over-Fiber Technology for Broadband Wireless MIMO Systems 1/2013 Atílio Gameiro Mojtaba Sadeghi Manuel Violas Rogério Nunes Nogueira Andre Albuquerque Rogério Nunes Nogueira Rogério Nunes Nogueira Miguel Vidal Drummond Carlos Marques Luís Melo João Lemos Pinto António Teixeira Zoran Vijicij Natasa Pavlovic António Teixeira Ali shahpari Mário Lima Armando Nolasco Pinto Filipe Manuel Wiener Ferro de Carvalho Nuno Alexandre Peixoto Silva Paulo André Ana Pratas Manuel Violas Zhansheng Liu Mário Lima Vitor Ribeiro Armando Nolasco Pinto Fernando Pedro Pereira Guiomar Maria de Fátima Fonseca Domingues Rui Manuel Dias Morais Sudhir Kumar Routray Álvaro José Caseiro de Almeida Adolfo Cartaxo Paulo André Armando Nolasco Pinto Armando Nolasco Pinto Armando Nolasco Pinto MIMO techniques for radio over Fiber Active and Passive All-Optical Signal Processing Devices for Efficient Optical Communication Systems Components and techniques for high capacity optical communications Advanced fiber optic sensors 2/2013 9/2013 9/2013 10/2013 emiters and receivers for next generation 12/2013 access optical networks Next generation dense optical access 12/2013 networks OFDM-based next generation converged 12/2013 optical-wireless access networks Quantum Cryptography in Optical Fibers 12/2013 Rogério Nunes Nogueira Nuno Borges Carvalho Mário Lima,António Teixeira Técnicas de monitorização em redes 12/2013 ópticas da próxima geração Research on Nonlinearities in Radio over 4/2014 Fiber All-optical network resources in the scope of impairment aware based routing 9/2014 for the next generation optical networks Digital Post-Compensation in High-Speed 12/2014 Optical Transmission Systems Estudo da degradação do tempo de vida das fibras ópticas e o seu impacte no 12/2014 desempenho das redes de comunicações Paulo Monteiro Optical Networks Optimization 12/2014 José Ferreira da Rocha Quality of Signal in Transparent Optical Networks 12/2014 Paulo André Quantum Communications in Optical Fibers 12/2015 Table 19 - List of PhD Theses running in the Optical Communications Area during 2011 147 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS 4.2.6 Publications Optical Communication Systems Book Chapters - André, P.S; Ana M. Rocha; F Domingues; N. Fernandes ; F Granada; M. J. N. Lima; A.T. Teixeira; " POWER TRANSMISSION OVER OPTICAL FIBERS " - Chapter in Advances in Energy Research – Volume 8 , Morena V. Acosta , Nova Publisher , New York , 2011 . Papers in Journals - Girão, J.; B. Neto; Ana M. Rocha; C. Reis; R.P. Dionísio; s Chatzi; F Bonada; J. Lazaro; A.T. Teixeira; P.S André; " C+L bandƒn extended reach amplified next generation access networks ", Microwave and Optical Tech. Letters , Vol. 53 , No. 10 , pp. 2414 - 2418 , October , 2011 . - Oliveira, R.A.; C.A.F. Marques; J. Canning; R.N. Nogueira; A. Pohl; " Complex Bragg Grating Writing using Direct Modulation of the Optical Fibre with Flexural Waves ", Applied Physics Letters , Vol. 99 , No. 16 , pp. 161111 - 161111-3 , October , 2011 . - Reis, J.D.; A.T. Teixeira; " Cross-Phase Modulation Impact on Coherent Optical 16QAM-WDM Transmission Systems ", Microwave and Optical Tech. Letters , Vol. 53 , No. 3 , pp. 633 - 636 , March , 2011 . - Rocha, Ana M.; P. Antunes; F Domingues; M. Facão Facão; P.S André; " Detection of Fiber Fuse Effect Using FBG Sensors ", IEEE Sensors Journal , Vol. 11 , No. 6 , pp. 1390 - 1394 , June , 2011 . - Guiomar, F. P.; J.D. Reis; A.T. Teixeira; A. N. Pinto; " Digital Post-Compensation Using Volterra Series Transfer Function ", IEEE Photonics Technology Letters , Vol. 23 , No. 19 , pp. 1412 - 1414 , October , 2011 . - Liu, Z.; M. Violas; N.B.C. Carvalho; " Digital Predistortion for RSOAs as External Modulators in Radio over Fiber Systems ", Optics Express , Vol. 19 , No. 18 , pp. 17641 - 17646 , August , 2011 . - Alves , T. M. F.; A. Cartaxo; " Distribution of double-sideband OFDM-UWB radio signals in dispersion compensated long-reach PONs ", IEEE/OSA Journal of Lightwave Tech. , Vol. 29 , No. 16 , pp. 2467 - 2474 , August , 2011 . - Marques, C.A.F.; R.A. Oliveira; A. Pohl; J. Canning; R.N. Nogueira; " Dynamic Control of a Phase-Shifted FBG through Acousto-Optic Modulation ", Optics Communications , Vol. 284 , No. 5 , pp. 1228 - 1231 , March , 2011 . 149 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Silva, N. A.; N. J. Muga; A. N. Pinto; " Evolution of first-order sidebands from multiple FWM processes in HiBi optical fibers ", Optics Communications , Vol. 284 , No. 13 , pp. 3408 - 3415 , April , 2011 . - Alves , T. M. F.; A. Cartaxo; " Experimental Demonstration of 9 Double Sideband OFDM-UWB Sub-Bands Transmission Along Long-Reach PONs ", Microwave and Optical Tech. Letters , November , 2011 . - Morgado, J.; D.F. Fonseca; A. Cartaxo; " Experimental Study of Coexistence of Multi-Band OFDM-UWB and OFDM-Baseband Signals in Long-Reach PONs Using Directly Modulated Lasers ", Optics Express , Vol. 19 , No. 23 , pp. 23601 - 23612 , December , 2011 . - Liu, Z.; M. Sadeghi; G. Valicourt; R. Brenot; M. Violas; " Experimental Validation of a Reflective Semiconductor Optical Amplifier Model Used as a Modulator in Radio Over Fiber Systems ", IEEE Photonics Technology Letters , Vol. 23 , No. 9 , pp. 576 - 578 , May , 2011 . - Fonseca, D.F.; A. Cartaxo; " Eye opening degradation due to sideband suppression in direct detection systems for different signaling formats ", Fiber and Integrated Optics , Vol. 30 , No. 3 , pp. 151 - 165 , June , 2011 . - Ferreira, F. M.; S. L. Jansen; P. Monteiro; H. A. Silva; " Nonlinear Semi-Analytical Model for Simulation of Few-Mode Fiber Transmission ", IEEE Photonics Technology Letters , pp.1 - 3 , November , 2011 . - Dahan, D. D.; U. M. Mahlab; A.T. Teixeira; I. Tomkos; " Optical performance monitoring for translucent/transparent optical networks ", IET Optoelectronics , Vol. 5 , No. 1 , pp. 1 - 18 , May , 2011 . - Alves , T. M. F.; M. Morant; A. Cartaxo; R. Llorente; " Performance comparison of OFDM-UWB radio signals distribution in long-reach PONs using Mach-Zehnder and linearized modulators ", IEEE Journal on Selected Areas in Communications , Vol. 29 , No. 6 , pp. 1311 - 1320 , June , 2011 . - Muga, N. J.; M. Ferreira; A. N. Pinto; " QBER Estimation in QKD Systems with Polarization Encoding ", IEEE/OSA Journal of Lightwave Tech. , Vol. 29 , No. 3 , pp. 355 - 361 , February , 2011 . - Abdalla, A.A.; M. J. N. Lima; A.T. Teixeira; " Reduced bandwidth transmitter and simple detection scheme for improved constant envelope OFDM ", Electronics Letters , Vol. 47 , No. 6 , pp. 391 - 392 , March , 2011 . - Alves , T. M. F.; A. Cartaxo; " SNR approach for performance evaluation of timestretching photonic analogue to digital converter system ", Optics Express , Vol. 19 , No. 2 , pp. 1493 - 1509 , January , 2011 . - Facão, M. Facão; Ana M. Rocha; P.S André; " Traveling Solutions of the Fuse Effect in Optical Fibers ", IEEE/OSA Journal of Lightwave Tech. , Vol. 29 , No. 1 , pp. 109 - 114 , January , 2011 . 150 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Reis, J.D.; A.T. Teixeira; " Weighting nonlinearities on future high aggregate data rate PONs ", Optics Express , Vol. 19 , No. 27 , pp. 26567 - 26567 , December , 2011 . Papers in Conference Proceedings - Veljanovski, V. V.; V. S. Sleiffer; D. B. van den Borne; J. C. Capasso; H. K. Kuluslu; J. S. Seixas; V. S. Schramm; A. T. Tschersich; R.N. Nogueira; N.P. Pavlovic; " 100G CP-QPSK Field Trial over 4108 km of Installed Submarine Cable ", Proc OSA Optical Fiber Communications - OFC , LA , United States , Vol. 1 , March , 2011 . - Cartaxo, A.; J. Morgado; T. M. F. Alves ; F. C. Carvalho; D.F. Fonseca; J. L. Rebola; " A view on optical-wireless converged NG-FTTH networks ", Proc Annual Workshop on Photonic Technologies for Access and Biophotonics , Stanford , United States , January , 2011 . - Oliveira, R.A.; G. R. C. Possetti; C.A.F. Marques; P.T. Neves; C. A. Bavastri; R. C. Kamikawachi; J. L. Fabris; R.N. Nogueira; J. Canning; A. Pohl; " Acousto-optic control of the LPG spectrum for sensing applications ", Proc Optical Fiber Sensors Conf. , Ottawa , Canada , Vol. OFS11-OFS21-223 , pp. 1 - 4 , May , 2011 . - Marques, C.A.F.; R.A. Oliveira; A. Pohl; P.S André; R.N. Nogueira; " Adaptive gain equalization on optical amplifiers based on the Acousto-Optic effect using a single Long Period Grating ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. cd , pp. 1 - 3 , April , 2011 . - Marques, C.A.F.; L. Melo; R.A. Oliveira; A. Pohl; P.S André; R.N. Nogueira; " Adaptive gain equalization on optical amplifiers based on the acousto-optic modulation using a long period grating ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , May , 2011 . - Reis, J.D.; A.T. Teixeira; " Architectural Optimization of Coherent Ultra-Dense WDM based Optical Access Networks ", Proc OSA Optical Fiber Communications OFC , Los Angeles , United States , March , 2011 . - Marques, C.A.F.; R.A. Oliveira; J. Canning; A. Pohl; R.N. Nogueira; " Controlling the properties of Fiber Bragg Gratings based on the Acousto-Optic modulation ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , pp. 1 - 3 , April , 2011 . - Almeida, A. J.; L. M. Pinto; N. A. Silva; N. J. Muga; A. N. Pinto; " Correlated Photon-Pair Generation in a Highly Nonlinear Fiber Using Spontaneous FWM ", Proc Symp. on Enabling Optical Networks - SEON , Aveiro , Portugal , Vol. 1 , pp. 1 - 4 , July , 2011 . - Muga, N. J.; A. J. Almeida; M. Ferreira; A. N. Pinto; " Critical Issues in Polarization Encoded Quantum Key Distribution Systems ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 11 - 11 , April , 2011 . 151 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Reis, J.D.; A.T. Teixeira; " Density and Guard Band in Migration Scenarios to Coherent Ultra-Dense WDM ", Proc IEEE Global Telecommunications Conf. GLOBECOM , Houston , United States , Vol. 54 , pp. 1 - 5 , December , 2011 . - Alves , T. M. F.; A. Cartaxo; " Dependence of the transmission performance of multi-Band OFDM-UWB signals in LR-PONs on the modulator bias and driving voltages ", Proc International Microwave and Optoelectronics Conf. - IMOC , Natal , Brazil , October , 2011 . - Almeida, P. ; H. A. Silva; " Distribution of MB-OFDM UWB and Millimeter-Wave WPAN Signals on Hybrid FTTH Networks ", Proc IEEE International Conf. on UltraWideband - ICUWB , Bologna , Italy , Vol. 1 , pp. 1 - 5 , September , 2011 . - Pinho, P.T.; " Evaluation of a Low-Cost Radio-Over-Fiber System ", Proc Symp. on Enabling Optical Networks - SEON , Aveiro , Portugal , July , 2011 . - Gamelas, AG; " Evolution of FTTH networks based on Radio-Over-Fibre ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , pp. 1 - 4 , June , 2011 . - Rodrigues, C.Rodrigues; F. C. Carvalho; A. Cartaxo; " Evolution of FTTH networks based on Radio-Over-Fibre ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , pp. 1 - 4 , June , 2011 . - Rocha, Ana M.; G. G. Fernandes; F Domingues; A. N. Pinto; M. Facão Facão; P.S André; " Fiber fuse effect propagation break using optical fiber taper ", Proc Optoelectronics and Communications Conf. - OECC , Kaohsiung , Taiwan , pp. 593 594 , July , 2011 . - Vilar, R. ; C.A.F. Marques; R.N. Nogueira; A.T. Teixeira; R. Llorente; F. Ramos; " Flexible Optical-Comb-Based Multi-Wavelength Conversion for Optical Switching and Multicast ", Proc European Conf. on Networks and Optical Communications NOC , Newcastle , United Kingdom , Vol. , pp. 1 - 4 , July , 2011 . - Costa, N.; D.F. Fonseca; A. Cartaxo; " Influence of local oscillator-to-signal power ratio on the gaussianity of CP-QPSK signal statistics ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , June , 2011 . - Morgado, J.; D.F. Fonseca; A. Cartaxo; " Influence of Spectrum Location of Gigabit-Ethernet in Coexistence with Multi-Band OFDM-UWB Wireless Signals on the Long-Reach PON Performance Using Directly Modulated Lasers ", Proc IEEE International Topical Meeting on Microwave Photonics , Singapore , Singapore ,October , 2011 . - Oliveira, R.A.; C.A.F. Marques; K. Cook; J. Canning; R.N. Nogueira; A. Pohl; " Inscription of Bragg gratings using flexural acoustic waves ", Proc European Conf. on Optical Communications - ECOC , Geneva , Switzerland , September , 2011 . - Fernandes, G. G.; A. J. Almeida; M. Niehus; A. N. Pinto; " Measurement of the Diameter of an Optical Fiber Microwire using Stimulated Four-Wave Mixing ", Proc 152 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , Vol. 1 , pp. 1 - 7 , May , 2011 . - Guiomar, F. P.; J.D. Reis; A.T. Teixeira; A. N. Pinto; " Mitigation of Intra-Channel Nonlinearites Using a Frequency-Domain Volterra Series Equalizer ", Proc European Conf. on Optical Communications - ECOC , Geneve , Switzerland , September , 2011 . - Fonseca, D.F.; J. Morgado; A. Cartaxo; " Multi-band UWB signals transmission improvement due to pre-emphasis in LR-PONs using DMLs ", Proc IEEE Photonics Conf. - IPC , Arlington , United States , October , 2011 . - Sá , L.M.; C.A.F. Marques; N. Alberto; R.N. Nogueira; P.S André; " Multichannel dispersion compensation using a simplified approach SFBG design ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , May , 2011 . - Almeida, P. ; H. A. Silva; " Multiservices and Multiband Optical Signal Generation for Hybrid Access networks ", Proc Conf. on Optical Networks Design and Modelling - ONDM , Bologna , Italy , pp. 1 - 6 , February , 2011 . - Fernandes, G. G.; A. J. Almeida; A. N. Pinto; " Nonlinear Phase and Parametric Gain in Optical Fiber Microwires ", Proc Symp. on Enabling Optical Networks - SEON , Aveiro , Portugal , Vol. 1 , pp. 1 - 4 , July , 2011 . - Pinto, A. N.; A. J. Almeida; N. A. Silva; N. J. Muga; L. M. Pinto; " Optical Quantum Communications: An Experimental Approach ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , May , 2011 . - Sousa, .; C.A.F. Marques; R.N. Nogueira; P.S André; " Optical signal to noise ratio monitoring with Hi-Bi fiber Bragg grating ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , pp. 1 - 3 , April , 2011 . - Meireles, B. M.; J. L. Rebola; " Optimization of optical SSB-OFDM system with direct-detection for application in metropolitan/regional networks ", Proc ICETE International Conf. on Optical Communication Systems - OPTICS , Sevilla , Spain , Vol. 1 , pp. 1 - 1 , July , 2011 . - Muga, N. J.; A. J. Almeida; M. Ferreira; A. N. Pinto; " Optimization of polarization control schemes for QKD systems ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , Vol. 1 ,May , 2011 . - Guiomar, F. P.; A. N. Pinto; " Optimizing the Nonlinear Operator in Backward Propagation ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Sousa, .; C.A.F. Marques; R.N. Nogueira; P.S André; " OSNR monitoring using HiBi FBG for 10 Gbit/s optical networks ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , pp. 1 - 4 , June , 2011 . 153 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Alves , T. M. F.; A. Cartaxo; " Photonic analogue-to-digital converted based on wavelength division multiplexing technique ", Proc ICETE International Conf. on Optical Communication Systems - OPTICS , Sevilha , Spain , Vol. 1 , pp. 1 - 10 , July , 2011 . - Reis, J.D.; A.T. Teixeira; " Physical Impairments on High Aggregate Data Rate Passive Coherent Optical Networks ", Proc International Microwave and Optoelectronics Conf. - IMOC , Natal-RN , Brazil , Vol. CD , pp. 1 - 5 , November , 2011 . - Mendonça, A.; A. Charas; J. C. Clark; L. B. Bazzana; A. N. Nocivelli; G. L. Lanzani; J. Morgado; " Plastic optical fibres dopants to obtain gain enlargement and ultrafast optical switching ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , Vol. 1 , pp. 1 - 7 , May , 2011 . - Almeida, A. J.; S. R. Carneiro; N. A. Silva; N. J. Muga; A. N. Pinto; " PolarizationEntangled Photon Pairs Using Spontaneous Four-Wave Mixing in a Fiber Loop ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - André, P.S; M. J. N. Lima; F Granada; X Xiangjun; " Power over fiber in Raman amplified optical networks ", Proc International Conf. on Telecommunications - ICT , graz , Austria , June , 2011 . - Carvalho, F. C.; A. Cartaxo; " Power Requirements for Coexisting Baseband and Wireless OFDM-based Signals in Hybrid Metro-Access Networks ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , Vol. Tu.A5.6 , pp. 1 - 4 , June , 2011 . - Pato, S.; J. M. Pedro; P. Monteiro; H. A. Silva; " Prospects of supporting distributed antenna systems over next-generation optical access and metro-access networks ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , June , 2011 . - Rocha, Ana M.; P.S André; F Domingues; M. Facão Facão; " Reflected Light from the Fiber Fuse Propagation ", Proc Conf. on Telecommunications - ConfTele , Lisboa , Portugal , April , 2011 . - Almeida, A. J.; N. A. Silva; N. J. Muga; A. N. Pinto; " Single-Photon Source Using Stimulated FWM in Optical Fibers for Quantum Communication ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , Vol. 1 , pp. 1 - 7 , May , 2011 . - Silva, N. A.; A. J. Almeida; A. N. Pinto; " Statistical Characterization of a SinglePhoton Source Based on Stimulated FWM in Optical Fibers ", Proc Conf. on Telecommunications - ConfTele , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Rocha, Ana M.; F Domingues; M. Facão Facão; P.S André; " Threshold Power of Fiber Fuse Effect for different types of Optical Fiber ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , pp. Tu.P.13 - , June , 2011 . 154 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Reis, J.D.; A.T. Teixeira; " Transmission Aspects on Broadband Coherent Optical Access Networks ", Proc IEEE Latin-American Conf. on Communications LATINCOM , Belém-PA , Brazil , Vol. 3 , pp. 1 - 6 , October , 2011 . - Morgado, J.; D.F. Fonseca; A. Cartaxo; " Transmission of Coexisting OFDMBaseband and Multi-Band OFDM-UWB Signals Along LR-PONs Using DMLs ", Proc IEEE Photonics Conf. - IPC , Arlington , United States , October , 2011 . - Liu, Z.; M. Violas; N.B.C. Carvalho; " Transmission of Four Channels SCM Over Fiber and Nonlinear Compensation for RSOA External Modulators ", Proc IEEE GLOBECOM Workshops: Distributed Antenna Systems for Broadband Mobile Communication , Houston , United States , pp. 1 - 5 , December , 2011 . - Fonseca, D.F.; J. Morgado; A. Cartaxo; " Transmission of multi-band OFDM-UWB signals along NG-FTTH networks using directly modulated lasers ", Proc OSA Optical Fiber Communications - OFC , Los Angeles , United States , March , 2011 . - Rebola, J. L. ; A. Cartaxo; " Using the Moment Generating Function for the Performance Assessment of Optically Preamplified Direct-Detection OFDM Systems ", Proc International Microwave and Optoelectronics Conf. - IMOC , Natal , Brazil , October , 2011 . - Reis, J.D.; A.T. Teixeira; " Weighting Nonlinearities on Future High Aggregate Data Rate PONs ", Proc European Conf. on Optical Communications - ECOC , Geneva , Switzerland , Vol. CD , pp. We.10.P1.109 , September , 2011 . Project Reports - Almeida, P. ; F. M. Ferreira; H. A. Silva; " Optical Transmitter for the RoFnet Project Demonstrator ", Instituto de Telecomunicações , PTDC/EEATEL/71678/2006 , June , 2011 . OPTICAL COMPONENTS AND SUB-SYSTEMS Book Chapters - Fernandes, C. F.; J. Morgado; " The Static and Dynamic Transfer-Matrix-Method in the Analysis of Distributed-Feedback Lasers " - Chapter in Numerical Simulations of Physical and Engineering Processes , INTECH Open Acess Publisher, In-Tech, 2011 . - André, P.S; Ana M. Rocha; F Domingues; M. Facão Facão; " Thermal effects in optical fibers " - Chapter in Heat Transfer - Book 1 , Marco Aurélio dos Santos Bernardes , In-Tech , 2011 . Papers in Journals - Reis, C.; A. Maziotis; C. Kouloumentas; N. Calabretta; P.S André; R.P. Dionísio; B. Neto; H.J.S Dorren; H. Avramopoulos; A.T. Teixeira; " All-Optical Clocked D Flip- 155 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Flop Memory using a Hybrid Integrated S-R Latch ", Microwave and Optical Tech. Letters , Vol. 53 , No. 6 , pp. 1201 - 1204 , June , 2011 . - Bilro, L.; N. Alberto; L.M. Sá ; J. L. Pinto; R.N. Nogueira; " Analytical Analysis of Side-Polished Plastic Optical Fiber as Curvature and Refractive Index Sensor ", IEEE/OSA Journal of Lightwave Tech. , Vol. 29 , No. 6 , pp. 864 - 870 , March , 2011 . - Muga, N. J.; M. Ferreira; A. N. Pinto; " Broadband polarization pulling using Raman amplification ", Optics Express , Vol. 19 , No. 19 , pp. 18707 - 18712 , September , 2011 . - Fernandes, V.R.; Vicente; E. Pecoraro; D Karpinsky; A Kholkin; N. Wada; P.S André; Ferreira; " Determination of Refractive Index Contrast and Surface Contraction in Waveguide Channels Using Multiobjective Genetic Algorithm Applied to Spectroscopic Ellipsometry ", IEEE/OSA Journal of Lightwave Tech. , Vol. 29 , No. 19 , pp. 2971 - 2977 , October , 2011 . - Neto, B.; A. K Klingler; C. Reis; R.P. Dionísio; R.N. Nogueira; A.T. Teixeira; P.S André; " Enhanced optical gain clamping for upstream packet based traffic on hybrid WDM/TDM-PON using fiber Bragg grating ", Optics Communications , Vol. 284 , No. 5 , pp. 1354 - 1356 , March , 2011 . - Domingues, F.; Ana M. Rocha; P.S André; " High powers effects in damaged and contaminated optical fiber connectors ", Microwave and Optical Tech. Letters , Vol. 53 , No. 11 , pp. 2485 - 2488 , November , 2011 . - Domingues, F; Ana M. Rocha; P.S André; " High powers effects in damaged and contaminated optical fiber connectors ", Microwave and Optical Tech. Letters , Vol. 53 , No. 11 , pp. 2485 - 2488 , November , 2011 . - Boavida, J.M.; J. Morgado; C. F. Fernandes; " HR-AR Coated DFB Lasers with High-Yield and Enhanced Above-Threshold Performance ", Optics and Laser Technology , Vol. 43 , No. 3 , pp. 729 - 735 , April , 2011 . - Ferreira, N.; F. M. Costa; R.N. Nogueira; M.P.F. Graça; " Lithium niobate bulk crystallization promoted by CO2 laser radiation ", Applied Surface Science , Vol. in press , No. - , pp. 1 - 4 , September , 2011 . - Graffion, ; Cattoen; W Man; V.R. Fernandes; P.S André; R. A. Sá Ferreira; L. D. Carlos; " Modulating the Photoluminescence of Bridged Silsesquioxanes Incorporating Eu3+-Complexed n,n0-Diureido-2,20-bipyridine Isomers: Application for Luminescent Solar Concentrators ", Journal of Materials Chemistry , Vol. 23 , No. 21 , pp. 4773 - 4782 , October , 2011 . - Dionísio, R.P.; G.P. Parca; C. Reis; A. T. Teixeira; " Operational parameter optimization of MZI-SOA using multi-objective genetic algorithms ", Electronics Letters , May , 2011 . 156 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Domingues, F.; P.S André; ; " Optical fibres coating aging induced by the maritime environment ", Journal of Microwaves, Optoelectronics and Electromagnetic Applications , Vol. 10 , No. 1 , pp. 259 - 265 , June , 2011 . - Drummond, M. V.; C.A.F. Marques; P. Monteiro; R.N. Nogueira; " Photonic Instantaneous Frequency Measurement System Using Complementary Modulation ", IEEE Photonics Technology Letters , Vol. 23 , No. 3 , pp. 143 - 145 , February , 2011 . - Antunes, P.; Ana M. Rocha; Lima; H Varum; P.S André; " Thin bonding wires temperature measurement using optical fiber sensors ", Measurement , Vol. 44 , No. 2 , pp. 554 - 558 , February , 2011 . - Vicente, C.; R Venkatachaam; B. Ferreira; P. Marques; C.A.F. Marques; E. Pecoraro; L. D. Carlos; P.S André; R. A. Sá Ferreira; " Thin film optimization design of organic-inorganic hybrids for waveguide high-rejection optical filters ", Physica Status Solidi (RRL) , Vol. 5 , No. 8 , pp. 280 - 282 , July , 2011 . - Antunes, P.; H Varum; P.S André; " Uniaxial fiber Bragg grating accelerometer system with temperature ", Measurement , Vol. 44 , No. 1 , pp. 55 - 59 , September , 2011 . - Xavier, L.R.; V.R. Fernandes; Vicente; E. Pecoraro; Carlos; R. A. Sá Ferreira; P.S André; " UV Laser Photo-fabrication of Waveguide Couplers using Self-Patterning Organic-Inorganic Hybrids ", Microwave and Optical Tech. Letters , Vol. 53 , No. 10 , pp. 2304 - 2307 , October , 2011 . Papers in Conference Proceedings - Ribeiro, V. M. C.; C. Reis; M. J. N. Lima; P.S André; A.T. Teixeira; " All-optical flip flop using two gain-clamped RSOAs ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Fernandes, C. F.; J. Morgado; J.M. Boavida; " Analysis of Phase-Shift DFB Lasers Using the Dynamic Transfer-Matrix-Method ", Proc IEEE II Conference on Telecommunications - CONATEL 2011 , Arequipa , Peru , pp. -1 -4 , May , 2011 . - Pereira, J. T.; C.F. Fernandes; " Bandwidth Modeling and Optimization of PIN Photodiodes ", Proc Conf. on Telecommunications - ConfTele , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Ferreira, F. M.; S. Pato; P. Almeida; H. A. Silva; P. Monteiro; " Dual Band Signal Generation for Millimeter-wave RoF Systems with Subcarrier Multiplexing ", Proc Conf. on Telecommunications - ConfTele , Lisbon , Portugal , pp. 1 - 4 , April , 2011. - Domingues, F.; Ana M. Rocha; P.S André; " Failure Probability of Optical Fiber under High Optical Power and Small Bend Diameters ", Proc International Microwave and Optoelectronics Conf. - IMOC , Natal , Brazil , October , 2011 . 157 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS - Fernandes, C.F.; J. T. Pereira; " Frequency Response Analysis of Dual Depletion PIN Photodiodes ", Proc Portuguese-Spanish Conf. in Electrical Engineering , Ponta Delgada, Açores , Portugal , Vol. 1 , pp. 1 - 4 , July , 2011 . - Pereira, J. T.; J.T. Torres; " Frequency Response Optimization of Dual Depletion InGaAs/InP PIN Photodiodes ", Proc International Symp. on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering - ISEF , Funchal - Madeira , Portugal , Vol. 1 , pp. 1 - 8 , September , 2011 . - André, P.S; F. Domingues; F Granada; " Impact of the Maritime Environment on the Aging of Optical Fibers ", Proc Conf. on Lasers and Electro-optic - CLEO , baltimore , United States , May , 2011 . - André, P.S; Vicente; L.R. Xavier; V.R. Fernandes; E. Pecoraro; R.N. Nogueira; P. Monteiro; Carlos; N. Wada; R. A. Sá Ferreira; " Integrated optics structures on solgel derived organic-inorganic hybrids for optical communications ", Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , May , 2011 . - André, P.S; F Domingues; M. Facão Facão; Ana M. Rocha; " Optical Fuse Discharge Temperature Determination Employing the CIE Color Coordinates ", Proc Conf. on Lasers and Electro-optic - CLEO , sidney , Australia , August , 2011 . - Sá Ferreira, R. A.; Vicente; E. Pecoraro; Carlos; P.S André; " Organic–inorganic hybrid materials in the context of the next generation of optical networks ", Proc International Conf. on Transparent Networks – ICTON , estocolmo , Sweden , June , 2011 . - Drummond, M. V.; C.A.F. Marques; P. Monteiro; R.N. Nogueira; " Photonic Instantaneous RF Frequency Measurement System based on Complementary E/O Modulation ", Proc Optoelectronics and Communications Conf. - OECC , Kaohsiung , Taiwan , Vol. 6G2-2 , pp. 1 - 2 , July , 2011 . - Drummond, M. V.; C.A.F. Marques; P. Monteiro; R.N. Nogueira; " Photonic Instantaneous RF Frequency Measurement System based on Complementary Modulation ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 3 , April , 2011 . - Drummond, M. V.; C.A.F. Marques; P. Monteiro; R.N. Nogueira; " Photonics Instantaneous RF Frequency Measurement System based on Complementary Modulation ", Proc International Conf. on Applications of Optics and Photonics AOP2011 , Braga , Portugal , Vol. 1 , pp. 1 - 4 , March , 2011 . - Fernandes, V.R.; Vicente; E. Pecoraro; N. Wada; P.S André; R. A. Sá Ferreira; " Refractive Index Characterization of Waveguide Channels Using Spectroscopic Ellipsometry ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011. - Drummond, M. V.; A.T. Teixeira; P. Monteiro; R.N. Nogueira; " Routable OTDM to WDM Converter enabled by a Programmable Optical Processor ", Proc European 158 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Conf. on Optical Communications - ECOC , Geneva , Switzerland , Vol. We.10.P1.58 , pp. 1 - 3 , September , 2011 . - Sá Ferreira, R. A.; Vicente; V.R. Fernandes; Carlos; P.S André; E. Pecoraro; V. Bermudez; " Silica-on-silicon high rejection filters using organic-inorganic hybrids ", Proc Materials Research Society Symp. , San Francisco , United States , April , 2011. - Silva, N. A.; N. J. Muga; A. N. Pinto; " Single-Photon Source Using Stimulated FWM in Optical Fibers for Quantum Communication ", Proc SPOF International Conference on Applications of Optics and Photonics - AOP 2011 , Braga , Portugal , May , 2011 . - Drummond, M. V.; A.T. Teixeira; P. Monteiro; R.N. Nogueira; " Tunable OTDM to WDM Conversion enabled by a Programmable Optical Filter ", Proc Optoelectronics and Communications Conf. - OECC , Kaohsiung , Taiwan , Vol. 8D1-2 , pp. 1 - 4 , July , 2011 . OPTICAL NETWORKING Papers in Journals - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Optimized Routing and Buffer Design for Optical Transport Networks Based on Virtual Concatenation ", Journal of Optical Communications and Networking , Vol. 3 , No. 9 , pp. 725 - 738 , September , 2011 . Papers in Conference Proceedings - Cartaxo, A.; J. Morgado; D.F. Fonseca; " A perspective on optical-wireless converged NG-FTTH networks using directly modulated lasers ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , Vol. 1 , pp. 1 - 4 , June , 2011 . - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Cost-Optimized Planning for Supporting 100 Gb/s and 40 Gb/s Services over Channel Count-Limited Optical Transport Networks ", Proc IEEE International Conf. on Communications - ICC , Kyoto , Japan , Vol. 1 , pp. 1 - 6 , June , 2011 . - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Enhanced Differential Delay Compensation in OTN with Dedicated and Shared Buffering Architectures ", Proc European Conf. on Optical Communications - ECOC , Geneve , Switzerland , Vol. 1 , pp. 1 - 3 , September , 2011 . - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Impact of Collocated Regeneration and Differential Delay Compensation in Optical Transport Networks ", Proc Conf. on Telecommunications - ConfTele , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Multi-Stage Optimization Framework for Transporting 100-GbE over OTN with Distributed Differential Delay 159 ANNUAL REPORT 2011 – OPTICAL COMMUNICATIONS Compensation ", Proc IEEE International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks - IEEE CAMAD , Kyoto , Japan , Vol. 1 , pp. 1 - 5 , June , 2011 . - Pedro, J. M.; J. Santos; J. J. O. Pires; " Performance Evaluation of Integrated OTN/DWDM Networks with Single-Stage Multiplexing of Optical Channel Data Units ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden ,June , 2011 . - Cancela, L. G. C.; J. J. O. Pires; " Quantifying the Influence of Crosstalk-Crosstalk Beat Noise in Optical DPSK Systems ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Pedro, J. M.; S. Pato; " Towards Fully Flexible Optical Node Architectures: Impact on Blocking Performance of DWDM Transport Networks ", Proc International Conf. on Transparent Networks – ICTON , Stockholm , Sweden , June , 2011 . - Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Virtual Concatenation of 100GbE over OTN: Tradeoffs Between Homogeneous and Heterogeneous Multiplexing ", Proc Symp. on Enabling Optical Networks - SEON , Aveiro , Portugal , Vol. 1 , pp. 1 - 4 , July , 2011 . 4.2.7 Other Achievements Patents P.S André; Ana M. Rocha; P. Antunes; A. Martins; " Method and monitor to determined the presence of fuse effect in optical networks ", WO/2011/071405 , June , 2011 . - P.S André; Ana M. Rocha; P. Antunes; A. Martins; " Monitor e método para a determinação da ocorrência do efeito de fusível em redes ópticas, baseados em redes de difracção escritas numa fibra óptica ", PT 104875 , August , 2011. Awards - Alves , T. M. F.; A. Cartaxo; " Best paper award ", Optics Conference 2011 , 0107-2011 . 160 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA 4.3 Networks and Multimedia 4.3.1 Area Coordinators Mário Figueiredo Rui Valadas 4.3.2 Human Resources Overview Degree Aveiro Coimbra Lisboa Full Professor 0 1 5 Associate Professor 2 1 7 Assistant Professor 11 4 27 Post. Doc. 0 1 3 Coordinator Professor 0 1 1 Assistant Lecturer 1 2 1 PhD Student 23 3 31 (Licenciado) 9 0 0 46 12 75 TOTAL Table 20 – Overview of human resources in Networks and Multimedia Area in 2011 161 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Permanent Collaborators Position Associate Professor Full Professor Degree PhD Name Abel João Gomes Agregação Amílcar Sernadas Assistant Professor Assistant Professor Assistant Professor Assistant Professor Assistant Professor Assistant Professor Assistant Professor Post. Doc. PhD Ana Cristina Costa Aguiar PhD Ana Fred Assistant Professor PhD Carlos Eduardo Ramos dos Santos Lourenço Security and Quantum Information –Lx Assistant Professor PhD Carlos Manuel Costa Lourenço Caleiro Security and Quantum Information –Lx Post. Doc. PhD Catarina Brites Multimedia Signal Processing – Lx Networked Systems – Po PhD PhD PhD PhD Post. Doc. Pattern and Image Analysis – Lx Ana Gualdina Almeida Matos Security and Quantum Information –Lx Anders Lyhne Christensen Network Architecture and Protocols – Lx António Carlos Almeida Network Architecture and Protocols – Lx António Nogueira Wireless Networking – Av Augusto José Venâncio Neto Wireless Networking – Av Bruno Bauwens Networked Systems – Po Cristina Olaverri Assistant Professor Assistant Professor Post. Doc. PhD Post. Doc. PhD Assistant Lecturer Post. Doc. PhD Coordinator Professor Assistant Professor PhD Fernando Lopes PhD Fernando Perdigão PhD PhD Group Network Architectures and Protocols – Cv Security and Quantum Information –Lx Networked Systems – Po Daniel da Silva Graça Security and Quantum Information –Lx Daniel Enrique Lucani Roetter Networked Systems – Po Danillo Bracco Graziosi Multimedia Signal Processing – Lr Daowen Qiu Security and Quantum Information –Lx Diogo Nuno Pereira Gomes Wireless Networking – Av Fausto José Canhoto de Paiva Networked Systems – Po Vieira Multimedia Signal Processing – Co Multimedia Signal Processing – Co 162 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position Associate Professor Assistant Professor Assistant Professor Degree Agregação Name Fernando Pereira PhD Francisco Fontes PhD Gabriel Falcão Paiva Fernandes Group Multimedia Signal Processing – Lx Network Architectures and Protocols – Av Multimedia Signal Processing – Co Assistant Professor PhD Hugo Pedro Martins Carriço Proença Pattern and Image Analysis – CV Assistant Professor Assistant Professor PhD João Ascenso PhD João Filipe Quintas dos Santos Rasga Multimedia Signal Processing – Lx Security and Quantum Information –Lx Associate Professor Licenciatura João Francisco Cordeiro de Oliveira Barros Networked Systems – Po Assistant Professor PhD João Pedro Afonso Oliveira da Silva Pattern and Image Analysis – Lx Associate Professor Assistant Professor PhD João Sobrinho PhD Joaquim José de Castro Ferreira Network Architecture and Protocols – Lx Embedded Systems – Av Assistant Professor PhD Joel José Puga Coelho Rodrigues Network Architectures and Protocols – Cv Associate Professor PhD José Alberto Gouveia Fonseca Embedded Systems – Av Agregação José Bioucas Dias PhD José Brázio PhD José Nascimento PhD Luís A. Alexandre PhD Luís Ducla Soares PhD Luis Filipe Coelho Antunes Pattern and Image Analysis – Lx Network Architecture and Protocols – Lx Pattern and Image Analysis – Lx Pattern and Image Analysis – CV Multimedia Signal Processing – Lx Security and Quantum Information –Lx Pattern and Image Analysis – Lx Associate Professor Associate Professor Assistant Professor Associate Professor Assistant Professor Assistant Professor Full Professor Assistant Professor Agregação Luís Henrique Martins Borges de Almeida PhD Luís Miguel Martins Nunes Network Architecture and Protocols – Lx 163 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position Associate Professor Post. Doc. Degree PhD PhD Manuel Alejandro Barranco González Networked Systems – Po Assistant Professor PhD Marco Alexandre Cravo Gomes Multimedia Signal Processing – Co Full Professor Name Group Luis Miguel Pinho de Almeida Networked Systems – Po Agregação Maria Cristina de Sales Viana Serôdio Sernadas Assistant Professor PhD Maria Manuela Areias da Costa Pereira de Sousa Assistant Professor PhD Assistant Professor Assistant Professor Assistant Professor Post. Doc. PhD Maria Paula Prata de Sousa PhD Maria Paula Queluz PhD Mariana Almeida Multimedia Signal Processing – Cv Maria Paula Antunes Abrantes Security and Quantum Gouveia Information –Lx Mariana Henriques da Silva Kaiseler Full Professor Agregação Mário Figueiredo Full Professor Agregação Mário Freire Assistant Professor Security and Quantum Information –Lx Michel Celestino Paiva Ferreira Network Architectures and Protocols – Cv Multimedia Signal Processing – Lx Pattern and Image Analysis – Lx Networked Systems – Po Pattern and Image Analysis – Lx Multimedia Signal Processing – Cv Networked Systems – Po Assistant Professor PhD Miguel Raul Dias Rodrigues Information Theory – Po Assistant Professor PhD Miguel Tavares Coimbra Interactive Multimedia Po Post. Doc. PhD Nikola Paunkovic Security and Quantum Information –Lx Assistant Professor PhD Nuno Miguel Morais Rodrigues Multimedia Signal Processing – Lr Coordinator Professor PhD Paulo Alexandre Carapinha Marques Pattern and Image Analysis – Lx 164 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position Associate Professor Degree Agregação Name Paulo Alexandre Carreira Mateus Group Security and Quantum Information –Lx Assistant Professor Assistant Professor Assistant Professor Assistant Professor Assistant Professor PhD Paulo André Pais Fazendeiro PhD Paulo Lobato Correia PhD Paulo Nunes PhD Paulo Salvador Ferreira PhD Pedro Alexandre Sousa Gonçalves Pattern and Image Analysis – CV Multimedia Signal Processing – Lx Multimedia Signal Processing – Lx Wireless Networking – Av Wireless Networking – Av Coordinator Professor Assistant Professor Post. Doc. PhD Pedro Amado Assunção PhD Multimedia Signal Processing – Lr Pedro Ricardo Morais Inácio Multimedia Signal Processing – Cv Ricardo Roberto Duarte Networked Systems – Po Marau Associate Professor Assistant Professor Associate Professor Assistant Professor Agregação Full Professor Agregação Rui Valadas Assistant Professor Post. Doc. PhD Sancho Moura Oliveira PhD Sara Maria Fernandes Rato e Costa Marques Candeias Coordinator Professor Assistant Professor Post. Doc. PhD Sérgio Faria PhD Susana Sargento PhD Tiago Travassos Vieira Vinhoza Assistant Professor Post. Doc. PhD Tomás Brandão PhD Traian Emanuel Abrudan PhD PhD PhD Rui L. Aguiar Wireless Networking – Av Rui Manuel Fonseca Pinto Multimedia Signal Processing – Lr Rui Manuel Rocha Network Architecture and Protocols – Lx Rui Pedro de Magalhães Claro Networked Systems – Po Prior Network Architecture and Protocols – Lx Network Architecture and Protocols – Lx Multimedia Signal Processing – Co Multimedia Signal Processing – Lr Network Architectures and Protocols – Av Networked Systems – Po Multimedia Signal Processing – Lx Networked Systems – Po 165 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position Assistant Professor Degree PhD Name Valter Filipe Miranda Castelão da Silva Licenciado Licenciatura Vasco Lagarto Assistant Professor PhD Assistant Professor Post. Doc. PhD Vitor Manuel Mendes Silva PhD William Ricardo Carson Group Wireless Networking – Av Wireless Networking – Av Verónica Costa Teixeira Pinto Interactive Multimedia Orvalho Po Multimedia Signal Processing – Co Information Theory – Po Table 21 – Permanent Collaborators working in the Networks and Multimedia Area in 2011 Other Collaborators Position PhD Student Degree MSc Alexandre Kimiyaki Ligo Group Network Architectures and Protocols – Cv Networked Systems – Po MSc Alfredo Matos Wireless Networking – Av Licenciatura Álvaro Henrique C. Gomes Radio Systems – Av PhD Student MSc André Amorim de Faria Cardote Network Architectures and Protocols – Av PhD Student MSc André Braga Reis PhD Student MSc André Filipe Torres Martins PhD Student MSc André Lourenço PhD Student MSc André Nuno Carvalho Souto Network Architectures and Protocols – Av Network Architecture and Protocols – Lx Pattern and Image Analysis – Lx Security and Quantum Information –Lx Assistant Professor PhD Student PhD André Zúquete MSc Andreia Sofia da Costa Teixeira Network Architectures and Protocols – Av Security and Quantum Information –Lx PhD Student Ângela Cristina Marques de Oliveira Multimedia Signal Processing – Cv PhD Student Angelo Miguel Pires Arrifano Multimedia Signal Processing – Cv PhD Student PhD Student Licenciado Name Adriano Nunes Raposo 166 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree MSc Name Antonio Carlos de Oliveira Júnior Assistant Lecturer PhD PhD Student MSc Arlindo Oliveira da Veiga PhD Student MSc Artur Ferreira PhD Student MSc Bruno José Conchinha Montalto PhD Student António Luís Morais Costa da Network Architecture and Silva Lopes Protocols – Lx Bruno Miguel Correia da Silva PhD Student MSc Bruno Miguel Ferreira de Oliveira Assistant Lecturer PhD Student MSc Carla Calado Lopes MSc Carlos Jorge Santiago PhD Student Carlos Manuel Martins Marques PhD Student Carlos Miguel Ferreira Licenciado MSc Carlos Miguel Martins de Campos PhD Student Daniel Filipe Leonardo Figueira PhD Student Diego Felix de Souza PhD Student Diogo João de Sousa Ferreira Licenciado Licenciatura Diogo Resende Rainho PhD Student MSc Eduardo Marta PhD Student MSc PhD Student Group Network Architecture and Protocols – Lx Network Architectures and Protocols – Cv Pattern and Image Analysis – Lx Security and Quantum Information –Lx Network Architectures and Protocols – Cv Interactive Multimedia Po Multimedia Signal Processing – Co Wireless Networking – Av Network Architectures and Protocols – Av Network Architectures and Protocols – Av Network Architectures and Protocols – Av Network Architectures and Protocols – Av Multimedia Signal Processing – Lx Networked Systems – Po Wireless Networking – Av Multimedia Signal Processing – Co Eduardo Oliveira Estanqueiro Wireless Networking – Av Rocha Elga Cristina Gato Correia PhD Student MSc Emanuel Martins PhD Student MSc Evariste Logota Multimedia Signal Processing – Cv Multimedia Signal Processing – Co Network Architectures and Protocols – Av 167 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree Name Fabio de Lima Hedayioglu PhD Student MSc Farhan Riaz PhD Student MSc Fernando António Carvalho Marcos Licenciado Filipe Cabral Pinto Group Interactive Multimedia Po Interactive Multimedia Po Network Architectures and Protocols – Cv Network Architectures and Protocols – Av Multimedia Signal Processing – Cv Network Architectures and Protocols – Cv Security and Quantum Information –Lx PhD Student Licenciatura Filipe Cruz Gomes Soares PhD Student MSc Filipe dos Santos Neves Assistant Professor PhD Francisco Miguel Alves Campos de Sousa Dionísio PhD Student MSc Frank Juergen Knaesel Assistant Professor PhD Frutuoso Gomes Mendes da Silva Network Architectures and Protocols – Av Network Architectures and Protocols – Cv PhD Student MSc Gerhard Maierbacher Networked Systems – Po PhD Student MSc Gil Melfe Mateus Santos Assistant Professor PhD Student MSc Gonçalo Nuno Vinhas Leitão MSc Hana Khamfroush Network Architectures and Protocols – Cv Network Architectures and Protocols – Cv Networked Systems – Po PhD Student MSc Helena Isabel Aidos Lopes PhD Student MSc Henrique José Monteiro Oliveira PhD Student MSc Hugo Filipe Pereira da Silva Reboredo Information Theory – Po PhD Student MSc Hugo Humberto Plácido da Silva Pattern and Image Analysis – Lx PhD Student Network Architecture and Protocols – Lx Multimedia Signal Processing – Lx Hugo Moreira de Sousa Pinto Networked Systems – Po Assistant Professor PhD Isabel da Piedade Xavier Machado Alexandre Network Architecture and Protocols – Lx Assistant Professor Assistant Professor PhD Jaime Arsénio de Brito Ramos PhD Jan Gunnar Cederquist Security and Quantum Information –Lx Security and Quantum Information –Lx 168 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree MSc Name João Guilherme Pereira Rodrigues Group Networked Systems – Po PhD Student MSc João Manuel Barbosa de Oliveira Network Architecture and Protocols – Lx PhD Student MSc João Manuel Maia Duarte PhD Student MSc João Manuel Pires Leitão Caldeira Network Architecture and Protocols – Lx Network Architectures and Protocols – Cv PhD Student MSc João Maria Duarte Andrade PhD Student MSc João Monteiro Soares PhD Student MSc João Paulo Barraca Assistant Lecturer PhD Student MSc João Paulo Cordeiro MSc João Paulo Patriarca de Almeida PhD Student MSc João Paulo Vilela Networked Systems – Po PhD Student Licenciatura João Vasco Paulo Gomes PhD Student MSc Joaquim Manuel Pereira Mateus Multimedia Signal Processing – Cv Network Architectures and Protocols – Cv PhD Student MSc José Carlos G. P. Miranda PhD Student MSc José David Pereira Coutinho Gomes Antão Network Architecture and Protocols – Lx Pattern and Image Analysis – Lx Assistant Professor PhD José Francisco Monteiro Morgado Network Architectures and Protocols – Cv PhD Student MSc PhD Student MSc Karina Girardi Roggia PhD Student MSc Ke Zhang Security and Quantum Information –Lx Information Theory – Po PhD Student Licenciatura Lino Miguel Moreira Ferreira Multimedia Signal Processing – Lr PhD Student MSc Lucas Guardalben Network Architectures and Protocols – Av Multimedia Signal Processing – Co Network Architectures and Protocols – Av Wireless Networking – Av Network Architectures and Protocols – Cv Networked Systems – Po José Miguel de Carvalho Catela Network Architecture and Teixeira Protocols – Lx 169 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Degree PhD Name Luís Cruz PhD Student MSc Luis David Moreira Pedrosa Group Multimedia Signal Processing – Co Network Architecture and Protocols – Lx PhD Student Luís Filipe Nunes Quaresma de Oliveira Network Architecture and Protocols – Lx PhD Student Luís Filipe Rosário Lucas PhD Student Multimedia Signal Processing – Lr Luís Manuel Cerqueira Barreto Network Architectures and Protocols – Av Luís Miguel Barbosa da Costa Interactive Multimedia Leite Po PhD Student MSc PhD Student MSc Luís Miguel Lopes de Oliveira Associate Professor PhD Luis Miguel Pina Coelho Teixeira Botelho PhD Student Network Architectures and Protocols – Cv Network Architecture and Protocols – Lx Luis Miguel Ramos Barbara Cunha Pinto Networked Systems – Po Licenciatura Luís Miguel Silva Wireless Networking – Av Full Professor Agregação Luís Sá PhD Student MSc Luisa Marina Araújo Lima Multimedia Signal Processing – Co Networked Systems – Po PhD Student MSc Manuel Mota Ferreira PhD Student MSc PhD Student MSc Licenciado PhD Student Maria Margarida Carreira Pires Embedded Systems – Av Urbano PhD Student Post. Doc. PhD PhD Student PhD Student Network Architecture and Protocols – Lx Márcio Daniel Tavares de Melo Network Architectures and Protocols – Av Maria Cecília dos Santos Network Architectures Rosa and Protocols – Cv MSc Maricica Nistor Networked Systems – Po Marta Isabel Belchior Lopes Network Architecture and Protocols – Lx Mate Boban Networked Systems – Po Miguel Pereira dos Santos Silva Network Architecture and Protocols – Lx 170 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree Licenciatura PhD Student Name Miguel Sousa Borges de Almeida Group Network Architecture and Protocols – Lx Mohammad Nozari Zarmehri Networked Systems – Po PhD Student MSc Munnujahan Ara Information Theory – Po PhD Student MSc Nelson Carreira Francisco PhD Student MSc Nelson Filipe Capela PhD Student MSc Nuno Alexandre Tavares Coutinho Multimedia Signal Processing – Lr Network Architectures and Protocols – Av Network Architectures and Protocols – Av PhD PhD Nuno Manuel Garcia dos Santos Network Architectures and Protocols – Cv PhD Student Assistant Professor PhD Student Assistant Professor PhD Student Assistant Lecturer PhD Student PhD MSc Nuno Miguel Monteiro Barbosa Interactive Multimedia Po Paul Andrew Crocker Network Architectures and Protocols – Cv Paulo Alexandre Correia da Network Architectures Silva Neves and Protocols – Cv PhD Paulo Bacelar Reis Pedreiras Embedded Systems – Av MSc Paulo Jorge Ferreira Baptista Pinheiro Cordeiro Network Architectures and Protocols – Cv Licenciatura Paulo Paiva Monteiro MSc PhD Student Multimedia Signal Processing – Co Paulo Roberto Almeida Moreira Network Architecture and Costa Protocols – Lx Paulo Vasco Oliveira Networked Systems – Po Network Architectures and Protocols – Cv Security and Quantum Information –Lx PhD Student MSc Pawel Andruszkiewicz PhD Student Licenciatura Pedro Alexandre Cardoso Baltazar PhD Student Assistant Professor Licenciado Pedro Alexandre Gonçalves Wireless Networking – Av PhD Pedro Araújo MSc Pedro Capão Network Architectures and Protocols – Cv Radio Systems – Av 171 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree MSc Name Pedro Emanuel Rodrigues Gomes PhD Student MSc Pedro Frazão Correia PhD Student MSc PhD Student MSc Assistant Professor PhD Student PhD MSc PhD Student PhD Student Pedro Miguel dos Santos Alves Madeira Adão Pedro Miguel Naia Neves Security and Quantum Information –Lx Network Architectures and Protocols – Av Networked Systems – Po Pedro Miranda de Andrade de Networked Systems – Po Albuquerque d´Orey MSc PhD Student Licenciado Multimedia Signal Processing – Lr Pedro José Gonçalves Ribeiro Security and Quantum Information –Lx Pedro Miguel Alves Brandão Networked Systems – Po Pedro Miguel Salgueiro dos Santos PhD Student Group Networked Systems – Po MSc PhD Student Pedro Tavares Barata Bastos Interactive Multimedia Po Pedro Tiago Magalhães Gomes Networked Systems – Po Ricardo Azevedo Guerra Pereira Network Architectures and Protocols – Av Ricardo David Castañeda Marin Interactive Multimedia Po PhD Student MSc Ricardo João Rodrigues Gonçalves Security and Quantum Information –Lx Licenciado MSc Ricardo Jorge Alves Cordeiro Wireless Networking – Av PhD Student MSc Ricardo Jorge Fernandes Networked Systems – Po PhD Student MSc Ricardo Jorge Magalhães de Matos Network Architectures and Protocols – Av MSc MSc Ricardo Vilaça Moreira PhD Student MSc Romeu Rabaça Monteiro PhD Student MSc Rui Costa Cardoso PhD Student MSc Rui Filipe Mendes Alves da Costa Network Architectures and Protocols – Av Network Architectures and Protocols – Av Network Architectures and Protocols – Cv Networked Systems – Po 172 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position Assistant Professor Degree PhD Name Rui Jorge Henriques Calado Lopes Group Network Architecture and Protocols – Lx PhD Student MSc Rui Manuel Pacheco Meireles Networked Systems – Po Rui Pedro Quaresma Braz Multimedia Signal Processing – Cv Information Theory – Po PhD Student PhD Student MSc Samah Ahmad Mohammad Mustafa PhD Student PhD Sandro Moiron PhD Student MSc PhD Student MSc Sérgio Armindo Lopes Crisóstomo Sérgio Duarte Correia PhD Student Sérgio Emanuel Duarte Dias PhD Student MSc Sérgio Marcelino PhD Student MSc Sónia Pelizzari PhD Student Susana Pereira Bulas Cruz Multimedia Signal Processing – Lr Networked Systems – Po Network Architectures and Protocols – Cv Network Architectures and Protocols – Cv Security and Quantum Information –Lx Pattern and Image Analysis – Lx Networked Systems – Po PhD Student MSc Sylvain Tony Marcelino PhD Student MSc Teresa de Jesus Baptista Vieira PhD Student MSc Teresa Sarmento Henriques PhD Victor Manuel Letra Macedo Marques Network Architectures and Protocols – Av Vitor Simões Ribeiro Wireless Networking – Av Xiem HoangVan Multimedia Signal Processing – Lx Security and Quantum Information –Lx PhD Student PhD Student PhD Student PhD Student Assistant Professor Network Architecture and Protocols – Lx MSc Tiago José Gomes Quelhas Network Architecture and Protocols – Lx MSc Tiago Pinto Fernandes Interactive Multimedia Po MSc Tiago Silvestre Condeixa Network Architectures and Protocols – Av Licenciatura Vasco Nuno da Gama de Jesus Network Architectures Soares and Protocols – Cv MSc PhD Student Assistant Professor Multimedia Signal Processing – Lr Interactive Multimedia Po PhD Yasser Rashid Revez Omar 173 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Position PhD Student Degree Name Ye Can Group Interactive Multimedia Po Table 22 – Non-permanent Collaborators working in the Neteworks and Multimedia Area in 2011 174 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA 4.3.3 Summary of Research Achievements 4.3.3.1 Contributing groups Information Tecnology – Lx Information Theory – Po Multimedia Signal Processing – Lr Multimedia Signal Processing – Lx Network Architecture and Protocols – Lx Network Architectures and Protocols – Av Pattern and Image Analysis – CV Security and Quantum Information –Lx 4.3.3.2 Scope and Objectives The general medium term research direction in IT-Networks and Multimedia will aim at several goals: A global network integrating multiple technologies and services, providing end-to-end quality of service (QoS), ubiquitous access, and security. The common denominator of such heterogeneous global network will almost surely be the Internet Protocol (IP). New ways of storing/communicating, retrieving/accessing, processing, and presenting large volumes of multimedia data text, still images, video, and audio. The area of Networks and Multimedia includes 74 researchers with a PhD degree, and more than 130 PhD students and other collaborators. The research in this scientific area is organized in groups, with their main future research goals and topics of expertise are listed below. 4.3.3.3 Expertise and topics for future research 4.3.3.4 Information Theory Investigation of fundamental communications limits of wired and wireless communications systems; Investigation of the fundamental security limits of communications systems; 175 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Study of the interactions between information theory and estimation theory, and their optimization of applications in the analysis, design and communications systems and in physical-layer security; Investigation of the realization of common signal processing tasks (such as detection, estimation, classification, regression) within the paradigm of compressed sensing/sampling, mainly targeting applications to imaging systems. Interactive Miltimedia Set the infrastructure and logistics to run three research labs on: computer graphics, computer vision, and human-computer interaction; Set the foundation of 3d synthetic characters and how they behave in virtual and real environments. Study and deploy a character animation pipeline to create look-a-like avatars; Study and deploy a markerless facial motion capture system that uses low-cost equipment, such as web-cams; Create an animation system that automatically animates 3d facial models based on the markerless facial motion capture data; Realize a game prototype for the recognition of facial emotions using our facial sketching technique, and reproduce facial expressions from a specific person, wearing a head-mounted display, into a synthetic 3d avatar. Multimedia Signal Processing Application of multi-fractal theory for medical image and video analysis; Automatic discrimination of breast tumors in ultrasonic images: quantification and classification of breast tissue density and study of its variance in the neighborhood of breast tumor lesions. 176 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Design and development of a 3d holographic video codec, taking into account the perceptual characteristics introduced by the channel, the target display, and the human visual system. Development of robust acoustic modelling methods, by automatic segmentation of speakers, linguistic and non-linguistic events and speech utterances in broadcast programs. Study of voice pathologies and dysarthria, using signal analysis and acoustic models for speakers with voice disorders. Automatic creation of phonetic dictionaries for portuguese. Exploring prosodic and linguistic features of the speech segments in the bd database. Studying hesitation phenomena detected automatically from the speech. Making forensic voice comparison using various speech features. Research on the practical aspects of dvb-t deployment and in-building distribution. Research on motion compensation for distributed video coding and for video coding standards. Development of complexity control schemes for video codecs (namely hevc), looking for solutions for embedded platforms to control the amount of power used in coding video, and studying parallel implementation of hevc codecs. Research on video summarization and segmentation, namely focusing on the choice of metrics, the reproduction process, and the integration into temporally scalable video coding algorithms. Development of efficient rate control algorithms for multiple description video encoders, using the h.264/avc framework for dynamic network adaptation to multiple paths and error robustness scenarios. Development of biometric identification and verification methods with enhanced security (notably using distributed source coding tools) and robustness (namely for unconstrained environments and based on partial or degraded data). Development ofiris recognition methods for the non-cooperative at-adistance capture environment by modelling deformations under 177 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA different lighting conditions and through the use of periocular information. Research on analysis of road surface pavement images, for the supervision and management support of road infrastructures, namely highways. Development of processing techniques for 3d video, namely 3d holoscopic video. Developmentof objective video quality assessment methods for iptv networks. Research on digital image and video segmentation and classification, for automatic power line maintenance inspection. Development of efficient distributed video coding solutions based on the wyner-ziv and slepian-wolf theorems. Development of h.264/avc based efficient video coding solutions based on geometric transforms. Development of efficient combined predictive-distributed video coding solutions. Pattern and Image Anaysis Rresearch on deep learning, based on the idea that multiple layers of representation are useful in certain problems, such as, to alleviate the burden of retraining between different but similar tasks by reusing some of the representation layers. Research on evolutionary computation: study of the use of multiple gpus for implementing commonly used algorithms in the area. Proposal and implementation of a framework in order to operationalize the larg (lean, agile, resilient and green – larg) evaluation model for supply chains. Research on using soft computing techniques for automatic drug infusion in medical care environment. Development of image analysis methods for automatic cell annotation and for the analysis chest x-rays. Development of new cluster validation techniques and new algorithms for clustering dyadic data. 178 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Research on new clustering ensemble methods and (dis)similarity learning from data. Classification of sequences using information theoretic distances, with applications in biometrics (namely eeg) and text classification. Research on bling separationof linearly mixed phase-lockedsources. Research on analysis and processing of hyperspectral data for remote sensing and near infrared imaging applications. Development of fast algorithms for imaging inverse problems, involving non-smooth regularization and non-gaussian observation models. Research on on-line algorithms for learning classifiers in structured contexts, namely for natural language processing applications (e.g., parsing). Research on blind image deblurring, namelyfurther testing and improvement of the multi-resolution approach, search for better cost functions, and development of new criteria for selecting the regularization parameter and the stopping threshold. Blind estimation and inversion of nonlinear distortion in signals. Development of new tools for sar data, providing effective improvements of the state of art capabilities in maritime surveillance. Development of an underwater communications testbed using ultrasound signals. Architectures, Protocols and Services Correctness of connection management protocols with application to the Internet. Internet routing. (a) Study of mechanisms and incentives for the deployment of route aggregation. (b) Advances on the algebraic theory of routing. (c) Scalability of MPLS networks. Theoretical and experimental study of complex networks’ structure and dynamics. Design and experimental assessment of networked multimedia systems. Particular emphasis will be given to the signaling and media transport issues and to the support of challenging media content. 179 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Home networking. Development of new context-aware interfaces for smartphones. Wireless sensor networks. (a) Development of new applications based on the 6LowPAN protocol. (b) Development of a new board (hardware) for sensor networks, dedicated to actuation purposes. (c) Initial foray into the so-called “participatory sensing”. Wireless sensor networks: a solution for environmental and body sensor network solution will be proposed for ultra-light aircraft pilot monitoring. Deployment of an experimental network setup (at Tagus Park), interconnecting a mesh of routers. Network applications for monitoring and training of life styles, namely by researching on the effects of converged network and communications technologies. Deployment of VDTN testbed, including aggregation and de- aggregation mechanisms, andfragmentation algorithms. E-learning: a new eLearning platform that incorporates contributionsfrom the Web 2.0/3.0 (including online social networks) in the context of personal learning environments. Mobile and ubiquitous computing, in particular location and context aware applications with a focus on eHeath and ambient assisted living topics. Wearable technologies, in particular, development of technological garments for health status monitoring and interface with domotic systems. Intelligent Transportation Systems: definition of adequate models for wireless signal propagation and quality of service assessment, including the impact of vehicles as obstacles in vehicle-to-vehicle communication Traffic Engineering Congestion control in the internet. (a) investigation of binary congestion signaling schemes to control rate-based and windowbased sources. (b) implementation and testing of new end-to-end 180 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA congestion control mechanisms for links with large bandwidth-delay products. Traffic analysis. (a) robust feature selection and robust pca for internet traffic anomaly detection. (b) portability of statistical classifiers for the identification of internet applications. Theory and practice of quality of experience (qoe) assessment. particular emphasis will be given to the media transport issues, namely its impact on qoe parameters and the mapping between quality of service (qos) and qoe. Evaluation of methodologies for the assessment of the quality of internet access provided by isps. Application of bio-signal measurements to the assessment of quality of experience, in particular, to devising an autonomous and bio-signal based method to assess QoE. Research on network traffic classification, in particular by assessing the effects of changes in the lower layers of the communication models Fundamentals of Networking Physical-layer security: impact of physical-layer security strategies on the secure connectivity of large-scale wireless networks. Network coding: delay, fairness, security and applications in video streaming and peer-to-peer systems. Information security: algorithms for equational reasoning under cryptographic algebraic theories and their integration in a probabilistic model for the analysis of guessing and other offline attacks, and to design and study a suitable equational-based probabilistic dynamic epistemic companion logic. Applicability of the notion of algorithmic information theory to cryptographic primitives. One-way functions: we take a fresh look into one way functions trying to give an individual approach to this concept based on time bounded kolmogorov complexity. we propose a new definition of oneway function and study its connection with classical one way functions (namely weak, string and deterministic one way functions). 181 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA we also prove some results concerning relating classical one way functions and the expected value of kolmogorov complexity. 4.3.4 Running and Concluded Projects Overview Funding Agency Number British Council/CCISP 1 ESF, COST 2 EU 2 EU, FP7 3 EU, FP7 ICT 1 FCT, UT Austin 1 FCT, UT Austin 1 FCT/CAPES 1 FCT/CMU 4 FCT/PTDC 22 FCT/PTDC 2 FLAD 1 IT 16 Plano de Inovação PTInovação 1 PT-Inovação 1 QREN 2 QREN, PT-Inovação 1 Table 23 – Number of active projects in the Networks and Multimedia Area during 2011 182 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Activity in Projects Acron / Ref 3D VIVANT Title Live Immerse Video-Audio Interactive Multimedia Funding EU, FP7 Descript. The aim of the project 3D VIVANT is to capture events automatically in 3D and deliver them for realistic, interactive and immersive play back to home users-viewers. This will require the project to create, develop and integrate a comprehensive range of components from the generic technology of 3D imaging. Real and virtual 3D content will be homogeneously combined/mixed producing a novel form of rich and interactive content, defined as “3D Holoscopic content”. 3D Holoscopic imaging is a technique for creating full colour 3D optical models that exist in space independently of the viewer. The images exhibit continuous parallax throughout the viewing zone. The continuous nature of the images produced with this method eliminates the effect of 'cardboarding' (flattening of objects into discrete depth planes) and flipping (a visible effect created by moving between image fields) present in multiview stereoscopic systems. Unlike multiview stereoscopy, information about a point is contained in many different parts of the image plane. In this respect 3D Holoscopic imaging is akin to holography. However 3D Holoscopic imaging is more advantageous, since it can operate under incoherent illumination, which is in contrast with holography, and hence it allows more conventional live capture and display procedures to be adopted. Furthermore, in viewing the 3D optical model accommodation and convergence work in unison (i.e. the viewer’s eyes focus and converge to the same point) to prevent eye-strain from occurring. The 3D VIVANT project will investigate the possibility of using different technologies for capture and display of 3D content. For the capture, 3D VIVANT will take full advantage of 3D Holoscopic imaging technology, where a single camera is required. Hence in this project a world first single aperture ultra-high definition 3D Holoscopic imaging camera will be constructed which will permit live capture of 3D content. For the 183 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA display, the project will take advantage of Holography to provide immersive, ultra high resolution presentation of 3D content. To increase the immersive experience, the generation and playback of 3D spatial sound is also investigated. The developed system will be tested using two user cases, namely, broadcasting and online hyperlinking. For this purpose various 3D Holoscopic video processing algorithms, such as 3D codecs and 3D object segmentation, as well as search and retrieval techniques will be developed. Acron / Ref 3DVAP Title 3D video adaptation based on perceptual metrics Funding National Science Foundation - QREN Descript. The research work in this project is focused on 3D video stream adaptation methods capable of maximizing 3D perceptual quality under different sets of known constraints. The joint interdependencies between rate, 3D perceptual distortion and decoding complexity will be investigated using subjective evaluation and validation procedures. Adaptation of 3D video streams is mainly targeted at rate, format and decoding complexity adaptation, taking into account that 3D video includes more parameters suitable for adaptation which provide an increased level of flexibility (e.g., the 3D signal is coded into two streams which might undergo through different channel errors and constraints, variable depth distortion in the spatial and temporal domains producing similar perceptual quality, asymmetric distortion in stereoscopic video, effect of error concealment methods in 3D perception, etc). The project research is also concerned in devising power-aware adaptation functions such that decoding power consumption is reduced at the expense of minimum quality cost. This is an open topic for research in 3D video since decoding is far more complex than monoscopic video and the need for low complexity decoding is higher because of limited battery life and computational resources in portable decoders. 184 lower ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref 3DVQM Title 3D Video Quality Monitor Funding IT Descript. The project is focussed on research and development of 3D video perceptual quality monitoring in error prone networks, such as the near future 3DTV services over IP or DVB networks. The challenge is to establish a set of (Quality of Experience) QoE metrics and their relationship with objective measurements that affect the overall QoE. These metrics are computed from a combination of transport network layer information, quality features of 3D video signal and coding parameters embedded in compressed streams. The project seeks to investigate No-Reference (NR) methods such that blind 3D quality assessment can be carried out at any point of the delivery chain including the receiving terminal. Such an approach is rather more challenging than Full-Reference (FR) or even Reduced-Reference (RR) methods, where either the original signal or partial information about it is available. Acron / Ref Affective Mouse Title Affective Mouse Funding QREN Descript. This project aims at determining the role of emotions on the learning process and the way in which these can influence the results of the process. The goal is to develop a Human-computer interaction device (which is envisioned as a computer mouse) that measures multiple electrophysiological signals from the children and simultaneously allows the interaction with a multimedia Web application with games and educational exercises. Thus we want to know how different activities influence the physiological signals while completing the exercises/games on the Web platform. The system will allow the tutor to follow-up the 185 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA learning process, adopt incentive measures, and adjust the learning process according to the emotive signals of the children. As a result of the R&D project a physiological signal database will be produced on didactic and cognitive exercises, this way creating a base structure for advanced studies in affective computing and real interaction/learning environments. Acron / Ref ARGUS Title Activity Recognition and Object Tracking Based on Multiple Models Funding FCT/PTDC Descript. There are hundreds of cameras deployed in public places (e.g., streets, shopping malls, airports). However, only a small fraction of the cameras outputs (<5%) is regularly observed by humans. Most of the video information is stored or destroyed without being watched or processed. This means that current surveillance systems are not able to detect abnormal events in real time. A large effort has been recently done to develop algorithms to track objects (persons, vehicles) in video sequences and to recognize activities and unusual behaviors. Despite this effort, the problem is still far from being solved. Most of the current techniques only consider isolated persons and try to characterize the activity based on the trajectory in the video sequence or using shape features (silhouette, gait, gestures). Shape parameters may be useful when the camera is close to the object being observed, but trajectories are more important if the object is far from the camera. In the case of small/far objects, the surveillance system should be able to learn typical trajectories from the video signal and to compare new trajectories with the learned ones in order to recognize activities and detect unusual events. This can be done by clustering the observed trajectories into a set of typical clusters, each characterized by a “mean” trajectory or by a statistical model. The comparison of trajectories is not a simple task. Some methods involve the temporal alignment of sequences (e.g., using dynamic time warping). Other methods avoid explicit alignment by resorting to generative models (e.g., dynamic Bayesian networks). In 186 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA the latter approach, checking if some new trajectory is well described by a model corresponds to computing its likelihood under that model These generative models, however, are difficult to train and non intuitive since their structure and parameters have no physical meaning. This project will develop a new representation for activity recognition which tries to overcome some of the previous difficulties. We assume that the (person, vehicle, animal) trajectory is generated by a set of space-varying velocity fields learned from the video data. Different velocity fields correspond to different motion regimes. Consider, for example, a cross between two streets. We may have one velocity field describing the pedestrian motion in the first street and a second velocity field in the second street. Switching between the driving fields is possible and the switching probabilities are also space-varying (they depend on the person position in the scene); it’s possible to switch at the cross, but not far from it. Therefore, switching is described by a field of space-varying stochastic matrices. This model will be learned from a set of observed trajectories using the expectation-maximization (EM) algorithm. This seems to be a natural choice, since we do not know which velocity field is driving the motion (active field); these active field labels are thus treated as missing data. The estimation of the spacevarying matrices will be performed in an information theoretic framework using tools from differential geometry (natural gradient based on Riemaniann metric). This will be done in an unsupervised way. The number of models, the velocity fields and the field of switching matrices will all be learned from unlabeled data (video sequences). The proposed model is intuitive and easily understandable/ interpretable since each velocity field can be observed and describes a different type of motion in the scene. This information can be used by the manager of the infrastructure to characterize the typical ways in which people move in that place. Furthermore, it is also a good starting point for activity recognition based on the sequence of active models (switching sequence) and the computation of the sequence probability in order to detect abnormal behaviors. We also propose to develop an extension of the activity recognition system to the case of pairs of interacting pedestrians or even larger groups. The movement of each pedestrian will 187 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA also be modeled using the set of velocity fields as before. The dependence between different pedestrians will have to be modeled since we can no longer assume that they are independent. We will model the pairs (triplets, etc.) of labels in order to describe common activities (e.g., walking together, pursuing). Although the project is focused on human activity recognition, the proposed methods can also be applied in other contexts (e.g., surveillance of highways, analysis of the motion of isolated animals of groups of animals). The project team has worked together in the past and that work led to several joint publications. It includes 4 PhD researchers from 3 research institutes and it will also involve post-graduate students. The team has significant experience in all the the topics involved in the project: surveillance, object tracking, pattern recognition, computer vision, dynamical systems, and differential geometry. Acron / Ref AVATAR Title 3D Face Animation Funding QREN Descript. Project AVATAR aims to develop 3D animated face models that are synchronized with speech. The input to the system can be either speech or text. In the case of speech input, a recognizer is used followed by a converter from phonemes to visemes. In the case of text input, a synthesizer is used to create both the audio (speech) and the sequence of visemes. 3D face animations, created after the sequence of visemes, need to run on browser to allow the development of rich and interactive WEB applications. The project is funded by QREN where IT participates as a subcontractor. 188 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref Title BioSec Secure Multimodal Biometric Recognition System using Distributed Source Coding Funding FCT/PTDC Descript. Biometric recognition systems target the automatic recognition of a person’s identity based on physical, physiological or behavioural characteristics (something a person is or produces). In particular, verification systems perform one to one authentication, comparing the captured biometric data with that person’s own biometric template (a mathematical representation of the biometric features extracted during the enrolment phase) previously stored in the system. One of the major vulnerabilities associated to biometric recognition systems is that once a biometric template becomes compromised, it cannot be reissued, updated or destroyed. An attacker could then gain access to all the accounts/services/applications using that same biometric trait. The main goal of the project is to create a secure multimodal biometric verification system, supporting the generation of different templates from the same biometric data, as well as cancellable templates. Furthermore, the privacy of the original biometric data needs to be guaranteed, not allowing its recovery from the stored data. State-of-the-art methods will be extended by considering a biometric verification system based on distributed source coding principles and cryptographic hash functions, to enhance security with respect to traditional biometric systems. The additional consideration of multimodal biometrics helps preventing spoof attempts by imposters while increasing recognition rates Acron / Ref BodySens Title Internet-friendly Body Sensor Network Funding IT Descript. This project aimed the proposal of plug-and-play approaches for wireless sensor networks (WSNs) with IPv6 support allowing direct connection to 189 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA the Internet. Wireless mesh sensor networks are also considered and routing approaches are studied, as well as body sensor networks and their monitoring through mobile devices (using Android, symbian, Windows mobile and iPhone operating systems). The creation of a wireless sensor network prototype performing IPv6 for demonstrations and performance evaluation of the project contributions is also considered. Acron / Ref Bots Title Design and Implementation of a BotNet Detection System Funding FCT/PTDC Descript. The main purpose of this project is the development of a laboratorial platform for the real time detection of botnets and subsequent countermeasures deployment. The proposed detection approach should be based on diverse information types: the historical traffic profile of network users, on mathematical traffic models that can accurately describe network traffic and/or user profiles, on traffic measurements that can be carried out on some specific probes and on artificial intelligence systems that can take some combination of inputs in order to generate a relevant output that can used by the decision support system Acron / Ref BST Title Bluetooth Sensing Technology Funding IT Descript. The Bluetooth Sensing Technology project aims to deploy Bluetooth scanners along the freeway/arterial network in the road proximity. The idea is to locate a single detector in a place that can cover both ways of direction where data can be transmitted without interferences (i.e. the middle of a freeway, Fig. 2). In addition to the main task of designing and building a prototype of 190 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Bluetooth scanner (Task 1), the Bluetooth Sensing Technology project will include two other tasks that further expand the scope of the collaborative research that is involving faculty from different Portuguese research institutions and universities: the research experiment conduction to measure the traffic conditions (Task 2) and the data evaluation and results interpretation (Task 3). Conclusions regarding effective traffic management, control and flow optimization as it pertains to travel information such as Origin/Destination (O/D) matrices, travel times and route inference will be drawn by comparison of these parameters for each vehicle. The data evaluation will allow characterizing arterial/freeway systems and classifying them. Acron / Ref CAGE Title Computer Assisted Gastroenterology Examination Funding FCT/PTDC Descript. Research and develop novel gastroenterology image analysis algorithms for the extraction of clinical information. Acron / Ref CALLAS Title Calculi and Languages for Sensor Networks Funding FCT/PTDC Descript. The main goals of the CALLAS (Calculi and Languages for Sensor Networks) research project are: to contribute towards a fundamental understanding of wireless sensor networks by developing formal tools based on process calculi; to provide adequate programming architectures for dynamically configurable sensor nodes; and to validate the proposed designs in real-life prototype sensor applications. Wireless sensor networks, made of tiny, low-cost devices capable of sensing the physical world and communicating over radio links, are 191 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA significantly different from classical wireless networks such as GSM or wireless LANs: (a) the design of a sensor network is strongly driven by its particular application, (b) sensor nodes are highly constrained in terms of power consumption memory), and configuration (c) and large-scale distributed and computational sensor software resources (CPU, applications updates require without self- human intervention. Previous work on fundamental aspects of wireless sensor networks has mostly focused on communication-oriented models, in which the sensor nodes are assumed to store and process the data, coordinate their transmissions, organize the routing of messages within the network, and relay the data to a remote receiver. Although some of these models provide useful insights (e.g. into the connectivity characteristics or the overall power efficiency of sensor networks) there is a strong need for formal methods that capture the inherent processing and memory constraints, and illuminate the massively parallel nature of in-network computation. Our take is to develop process calculi for sensor networks building on formalisms for concurrent distributed systems and mobile code (most notably, pi-calculus). The envisioned tools will enable us to (a) prove the correctness and feasibility of different data gathering and communication protocols (e.g. by exploiting behavioral equivalence between processes), and (b) carry out formal comparisons of different schemes by quantifying the minimum amount of required resources. Based on the results of the first task we will attack another fundamental problem in sensor networks: the need for sensor programming languages with self-configuration and distributed update capabilities. We propose to develop specifically tailored high level idioms for sensor networks that capitalize on notions such as mobile code and selfmaintenance. Finally, we will implement and test the developed programming tools on a sensor networking prototype. Real-life experiments will allow us to better understand sensor networking constraints and further improve our designs. We believe that our interdisciplinary team of computer scientists and electrical engineers is well equipped to contribute both in theory and in practice to the advancement of sensor network programming. 192 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref CAPES Title Video coding with MMP Funding FCT/CAPES Descript. Develope algorithmd for video coding with MMP Acron / Ref CellNote Touch Title CellNote Touch - Touch-based Interactive Annotation of Cellular Images Funding IT Descript. Biomedical research typically requires the collection of very high quantities of microscopy images, with its subsequent manual or semiautomatic analysis using support software. This task is slow, subjective and very tiring, which motivates its full automation, allowing scientists to devote their full attention to the more critical issues of their research. The CellNote Touch project will combine research in computer vision and human-computer interaction to create an interactive touch-based tool for an improved analysis and annotation of cellular images that can run on a simple tablet-type computer. Acron / Ref COHERENT Title Coding and Communications over Heterogeneous Technologies Funding IT Descript. COHERENT will deliver fundamental knowledge and a proof-of-concept for network coding as a key enabler of efficient networking for multihomed devices. By exploiting the multiple, coexisting technologies in the end terminals, e.g., Wi-Fi, Bluetooth, WiMAX, UMTS, COHERENT shall focus on developing resource allocation and decision algorithms developed to optimise the use of the multiple available technologies, leveraging advanced coding techniques. Our view is that the optimal trade-off between energy efficiency, quality of service, network resources optimization, and economic costs can only be achieved by fully 193 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA exploiting synergies amongst heterogeneous wireless networks (HWN) through multi-homing. The existing heterogeneous mobility platform developed by previous projects (PANORAMA and LTE_Mob) between Instituto de Telecomunicações (IT) – Aveiro and Portugal Telecom Inovação (PTIN) shall be used for practical evaluation and demonstration of the developed algorithms and methodologies. Conversely, the platform’s functionality will be enhanced with joint coding and resource allocation algorithms Acron / Ref Title ComFormCrypt ComFormCrypt - Computational Semantics of Formal Methods in Cryptography Funding FCT-PTDC Descript. This project addresses the problem of correct symbolic abstractions of cryptographic primitives for the purpose of symbolic, automated proving of security properties of protocols. Computer security has been of major interest in the past two decades. This field provides both interesting research problems and important applications to everyone's life such as e-commerce and e-government, hence the need for designing better and safer security protocols. Proving security of protocols however is a difficult task that sometimes cannot be performed by hand, therefore several tools have been designed to deal with such a complex problem [B01,BMV05,P98]. But the need for such (automated) tools is not only due to the complexity of the protocols. If we consider the simple protocol proposed by Needham and Schroeder in 1978 [NS78], it was not until 1996 that Lowe discovered his famous attack on the protocol using the CSP-model checker FDR [L96] and suggested a fix. The attack used a flaw in the protocol design, the encryption itself was assumed to be perfectly secure. With this ''perfect'' cryptography assumption the protocol is simple enough to be easily analyzed by standard model-checkers and theorem provers. The fix was shown to be safe as long as encryption was perfect. But what happens 194 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA when the cryptographic primitives are not perfect, which is the case in real life where we can always guess a key with small probability? After some positive results regarding cryptographic soundness of such abstractions, Warinschi [W03] showed that the same attack discovered by Lowe against the NS protocol, could be performed against the corrected version if a somewhat weak but standard encryption scheme is used, the El-Gamal encryption scheme. This result turned the attention of the research community for the need of soundness results for formal cryptography, ie, the importance to characterize when protocols proved correct using perfect cryptography are correct when implemented with computational cryptography. Computational soundness of formal cryptography is an active research area and members of this team have been involved in several of its fronts [ABS05,ABHS05,ABHS09,AF06,AFGZN08,BHO07,BHO09,BMS06] Symbolic models provide abstractions for the study of cryptography that are amenable for automatic verification of complex protocols but assume ''perfect cryptography'' [DY93]. Messages, keys, encryptions, attacks, all appear as formal objects described with symbolic operations, axioms, derivation rules; cryptographic operations are modeled as functions on a space of symbolic expressions and security properties are also treated symbolically. This method ignores the probabilistic nature of encryptions. It provides a powerful way to describe how an adversary may interfere, corrupt, deceive participants of a protocol, and grab this way information not addressed to him. This method is much easier to handle mathematically than the computational, the proofs can be automated but, as the probabilistic nature is ignored, security within this framework does not necessarily mean security in the real world. Real probabilistic attacks that are outside the framework of this model may still happen [W03] On the other hand in the computational model cryptographic operations act on strings of bit and their security properties are defined in terms of probability and computational complexity [GM84]. Computational security proofs make use of techniques of these theories; proofs have to be done by hand (ie cannot be automated) and are different for each 195 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA protocol. Good protocols are those in which attackers cannot do something bad too often and efficiently enough. This is a very detailed description, closer to reality as it involves the notion of efficient computation, hence complexity and probabilities. However, even for mildly complex protocols this approach simply becomes too difficult and impossible to handle. The unification of these two models is absolutely necessary for symbolic security proofs to be trustable. So far in the literature there are fragmented attempts done by different research groups, but as their treatment lack sound mathematical basis, the results themselves and how they are related are questionable AR02,ABHS09,AF06,BPW03,C01,CC08,DDMST05,MW04] We expect this research project to deliver new insights to the relationship between the symbolic and computational models, clarify the applicability and limitations of existing approaches to this problem, and provide sound mathematical foundations that can be used in the future as a common framework and technique for sound symbolic abstraction of new cryptographic primitives. The ultimate goal of this research is to develop/adapt fully automated tools for symbolic models that, via our soundness results, entail strong cryptographic guarantees to the computational model, hence substituting the tedious complexity-theoretic proofs of computational cryptography by automated ones Acron / Ref COMUVI Title Compressão de Vídeo Multi-Vista Funding FCT/PTDC Descript. Desenvolvimento de técnicas para compressão de vídeo multi-vistas utilizando técnicas baseadas na correspondência aproximada de padrões multi-escalas recorrentes 196 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref COST 2101 Title Biometrics for Identity Documents and Smart Cards Funding European Science Foundation Descript. The main objective of this COST Action is to investigate novel technologies systems for using unsupervised a new multimodal generation of biometric authentication biometrics-enabled identity documents and smart cards, while exploring the added-value of these technologies for large-scale applications with respect to European requirements in relation to the storage, transmission, and protection of personal data. Acron / Ref CSI^2 Title Cryptographic Security of Individual Instances Funding FCT/PTDC Descript. Cryptographic Security of Individual Instances Acron / Ref DECA-Bio Title Dependent Component Analysis of Biological Signals Funding IT Descript. This project is meant to support a three-way collaboration between ITLisbon, IT-Coimbra, and Aalto University in Helsinki, Finland. The three research groups involved have two things in common: they all work in blind source separation (BSS) in situations where the typical approach through Independent Component Analysis (ICA) is not appropriate; and they all apply these techniques to biological signals. Our proposal is to pool together the e orts of the three research groups. They have recently worked in two main domains: separation of phaselocked subspaces; and separation of cardiac sounds. Although these two domains are very di erent, they share several aspects: 1) they are both inverse problems; 2) the observation model is linear; 3) the sources are 197 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA assumed to be statistically dependent. The team will develop novel algorihms to tackle these two separation problems, based mainly on two approaches: matrix factorization and Bayesian inference. Acron / Ref Title DEWICOS Design of Next Generation Very High Data Rate Wireless Communications Systems Funding FCT/PTDC Descript. The grand objective of the research project DEWICOS: Design of Next Generation Very High Data Rate Wireless Communications Systems is to exploit a novel framework based on the interplay between information theory and estimation theory to lay the foundations for the design of next generation very high data rate wireless communications systems. In the last decade wireless communications have experienced an explosive growth with the demand for higher data rates to accommodate new services growing rapidly ever since. A number of wireless systems have been gradually introduced including novel mobile and fixed wireless systems, e.g., 2nd and 3rd generation mobile systems as well as WiFi (IEEE 802.11) and WiMax (IEEE 802.16). This wireless communications revolution is being fuelled by constant technological breakthroughs to enhance transmission performance in the wireless setting. For example, major advances that dominated research efforts in the past decade concerned the development of multiple antenna transmission schemes, as well as the development of powerful error correcting coding schemes, such as turbo codes and low-density parity-check (LDPC) codes. In fact, these powerful techniques are now gradually being incorporated into wireless communications Notwithstanding, the standards optimization and of the commercial reliable products. information transmission rate – the Holy Grail in communications – is still an open issue at large of paramount importance in communications systems research and practice, offering the prospect of communication at ever increasing information rates. The major difficulty relates to the absence of appropriate mathematical tools and methodologies due to the 198 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA presence of complex features in communications systems, thereby motivating system designers often to resort to other criteria, engineering experience, and insight to optimize the system. Building upon foundational work on the interplay between information theory and estimation theory, this project proposes a different paradigm to the analysis, design and optimization of wireless communications systems: We will capitalize on the relation between mutual information, which measures the reliable information transmission rate between the input and the output of a system, and the non-linear minimum mean-squared error (MMSE), which measures the minimum mean-squared error in estimating the input given the output, to overcome in an innovative way the inherent difficulties concerning the optimization of the reliable information transmission rate of key communications systems. The research project is divided into three complementary tasks, which culminate with the application of the ideas to relevant communications scenarios and applications. The first task leverages the intersections between information theory and estimation theory in order to establish insight into the optimal structure of standard elements of communications systems. The focus will be on establishing concrete design guidelines for optimal transmit filters, optimal receive filters as well as resource allocation procedures in relevant communications scenarios, ranging from deterministic to wireless fading channels and single- to multi-user channels. The objective of the second task will be to develop practical algorithms, with a good tradeoff between issues such as accuracy, efficiency, complexity and convergence, in order to perform optimal filtering and resource allocation in communications systems. In addition, taking into account that the reliable information transmission rate is only achievable with powerful error correcting codes, this task will also investigate the integration of the optimal designs with powerful error correction codes, such as turbo codes or LDPC codes. The objective of the third task will be to evaluate the impact of the optimal designs – in combination with powerful error correcting codes – on the reliable information transmission rate of practical communications scenarios and standards such as WiFi, WiMax and LTE wireless networks, as well as digital subscriber (DSL) lines. Overall, the research team, consisting of 199 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA key research groups from the reputable Instituto de Telecomunicações, gathers considerable expertise in a wide range of complementary topics such as information theory, estimation and detection theory and communications systems and networks, all of which are necessary to meet both the theoretical and practical challenges of this research. Highlevel publishable (and possibly patentable) results are expectable Acron / Ref Title DRIVE-IN Distributed Routing and Infotainment through VEhicular Inter- Networking Funding FCT/CMU Descript. As positioning devices, sensing technologies and wireless interfaces become standard commodities, all sorts of vehicles such as cars, buses and trucks will soon be able to operate in a networked fashion, sharing vital information ranging from traffic congestion data to accident alarm signals and making navigation and safety decisions based on the messages they receive from neighboring nodes. In addition, vehicle-tovehicle communications open a myriad of new applications, including location-based networking and information distributed dissemination, interactive vehicle-based games. So far, social in most applications navigation and communication are viewed as separate capabilities with little or no relationship to each other. Clearly, vehicle mobility and node density can vary dramatically depending on the road network and daily traffic patterns, and, consequently, wireless network connectivity correlated between with the vehicles position is of extremely the dynamic vehicles and and the highly physical characteristics of the road. It is thus important to explore how one can exploit the interplay between real-time navigation and wireless communication to achieve stable and efficient traffic and information flows. 200 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref DeLKeTI Title Development and Learning of Kernels for Text and Images Funding FCT/PTDC Descript. 1. Development of techniques to approximate the universal distance for sequences and multidimensional data; this will lead to an approximate universal kernel. Using the ability of compression algorithms to approximate the universal distance, kernels will be tailored to each particular problem by exploiting different characteristics of the data. 2. Application of universal kernels in learning algorithms such as support vector machines or kernel logistic regression. 3. Theoretical characterization of the concentration properties (bounds) of the approximations to the universal distance, namely by exploiting known connection to Shannon's information. 4. Development of kernel learning techniques, in which the istance measure is learned from data (in supervised, emi-supervised, or nonsupervised modes), rather than specified a priori. 5. Application of the developed kernels to problems in text and image analysis; e.g., categorization, desambiguation, clustering. Acron / Ref DigiScope Title DigiScope - DIGItally enhanced stethosCOPE for clinical usage Funding FCT/PTDC Descript. In the ears of an experienced physician, a stethoscope yields important clinical information which can help an initial assessment of a patient’s clinical condition and guide the subsequent need for more specialized exams. Auscultation is both a powerful tool for screening the generic population for cardiac diseases and a hard clinical skill to master. Our motivation is thus to address state-of-the-art digital audio signal processing research challenges for extracting clinical features from auscultation, as well as providing a clinical second opinion on specific 201 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA heart pathologies. We pay particular attention to aortic pulmonary signal decomposition and its correlation with pulmonary arterial pressure, researching novel algorithms that can enable us to assist clinicians in the detection of pulmonary arterial hypertension situations. This is a good example of a reasonably common and sometimes deadly pathology that is difficult to detect by inexperienced physicians and which has a good prognosis when detected early. Acron / Ref Title EPIC EPIC - Efficient Pattern-matching Image Compression on many-core systems Funding FCT/PTDC Descript. The main goal of this project is to study the implementation of high performance recurrent pattern matching-based compression algorithms in many-core platforms, namely in Graphic Processing Units (GPUs). Acron / Ref EcoSense Title Wireless Sensor Mesh Networks for Pervasive Environmental Monitoring Funding IT Descript. This project aims to study routing protocols, applications and data gathering protocols in wireless mesh sensor networks and their application for environment monitoring. A real prototype for environment monitoring to study the network performance and data collection for better knowledge about Asphodelus bento-rainhae habitat is also considered. 202 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref Title EvaClue Evidence Accumulation in Unsupervised and Semi-Supervised Learning: a Cluster Ensemble Approach Funding FCT/PTDC Descript. The main objectives of this project are twofold: 1. To provide original, state-of-the-art contributions to the area of semisupervised learning, in particular exploring cluster ensemble methods. 2. To address the practical, real world problem of automatic structuring of text data, focusing on three types of objects: scientific papers; electronic email; and web pages. The key idea of semi-supervised learning, specifically constrained clustering, is to exploit both a priori information, and unlabeled data to organize data into sensible groups. A priori information can be provided as labeled data, or as constraints (usually pair-wise relations) that one wishes to enforce or just encourage. We focus on pair-wise associations, which are to be defined from available a priori information, or provided by means of user queries or data mining techniques on the application domain, exploring semi-structured data from multiple sources. Specifically, we will address the problem of active acquisition of constraints, by identifying key-objects at cluster boundaries, and exploring boosting approaches. A particular breakthrough on semisupervised learning is expected by its extension into the cluster ensemble framework. Cluster ensemble methods are a recent and very promising research area in clustering. Introduced in 2001, it was given increasing attention by the scientific community, both from theoretical and application domain perspectives. It is our goal to make novel contributions to this topic, in particular addressing the following issues: (a) processing of large data sets, focusing on efficient and scalable algorithms; (b) dimensionality reduction, through feature selection and extraction techniques; (c) use of a priori information, in a semi-supervised 203 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA perspective. The later issue will be addressed by incorporating and/or extending existing single clustering methods into the ensemble framework, but most importantly by designing new methods directly driven by paradigm. the ensemble Built upon perspective previous and work on evidence accumulation multi-criteria evidence accumulation and dissimilarity-based clustering, we will extend it taking into consideration the previous issues, and furthermore for the purpose of local feature selection (identification of relevant features at a cluster level). Cluster validation methods, exploring stability-based and information-theoretic concepts, will play an important role in the above mentioned research topics. Acron / Ref Title FOCOS Aberrant Crypt Foci and Human Colorectal Polyps : mathematical modelling and endoscopic image processing. Funding Descript. FCT, UT Austin Colon cancer is a type of cancer that forms in the large intestine (colon) or the rectum (end of the colon). Because it often affects both areas it is frequently referred to as Colorectal Cancer (CRC). It is one of the most frequent malignant tumors in the world. In Portugal, it is ranked first in terms of mortality among the five major cancer types (lung, breast, colon, stomach and prostate). Unlike most other malignancies, it is possible to prevent colorectal cancer. This is due to the long period of time elapsed between the appearance of a polyp and the eclosion of the carcinoma, which allows the detection and removal of the benign lesion. The most usual and clinically important polyps are adenomatous polyps (or adenomas), which are common in adults above the age of fifty years. According to international medical guidelines, early detection and removal of adenomatous polyps can prevent CRC and significantly improve the chance of survival. However, many public health issues related to screening of adenomatous polyps, as the periodicity and type of endoscopic evaluations, and the age of first evaluation, are still under discussion, and there is not an agreement 204 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA about the screening programs. In this context, Aberrant Crypt Foci (ACF) may have a crucial and determinant role. These are clusters of aberrant (deviant from normal) crypts (small pits, which are compartments of cells, in the colon epithelium) that are thought to be the precursors of colorectal cancer. In fact, according to endoscopic studies and animals´ experiments, ACF precede the eclosion of adenomas. Thus if this claim is proved, it means ACF must be considered part of the adenomacarcinoma sequence. This proposed project focuses in the mathematical modelling and endoscopic imaging processing of ACF and polyps. It requires interdisciplinary interactions and close collaboration in complementary areas. The main goal is to assist medical doctors in terms of the diagnosis, the prevention and the treatment of colorectal cancer. For the modelling part, our intention is to utilize multiscale methods, which involve partial differential equations and level set methods, to simulate the dynamics and shape of ACF and polyps populations. Mathematical simulations will be compared with experimental and clinical results. Such a comparison will lead to critical assessment of the models assumptions and to introduce suitable changes for their enhancement. We believe these models will be able to reproduce some particular aspects of the behavior of the human colon, and to reveal processes/mechanisms that would be impossible to reach with real-life experiments. They will provide some insight into ACF and polyps dynamics/behavior and consequently into CRC carcinogenesis. For the image processing part our aim is to develop computerized and fast algorithms to identify and assess the ACF and polyps patterns, captured in vivo by endoscopy. In particular, PDE (partial differential equation) and variational based image processing methods will be applied. The current methods employed for assessing the ACF and polyps patterns are somewhat subjective. They rely on direct medical observation only and are not standardized nor automated. It is desirable to have a reliable computerized method capable of identifying the ACF´s external boundaries and the crypts´ orifices in their interiors, as well as, the polyps´ patterns (size, morphology, color, surface, location). In this proposed project, the ACF´s images are obtained by magnification chromoscopic colonoscopy, with a fexible endoscope, whereas the 205 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA polyps´ images are acquired with a colon capsule endoscope. This latter is a very recent noninvasive tool for colonic evaluation, and consists of a microdevice, which is ingested by a patient and films the interior of the colon wall. The main advantages of such image processing algorithms would be to support the clinical reading and analysis, to improve diagnostic accuracy, to help to standardize colonic crypt and polyp pattern assessment, and to reduce the time needed for analyzing the huge amount of endoscopic images. In this way, these algorithms would facilitate and speed up screening methods towards the CRC prevention. The study of these research topics started in January 2007 at the Mathematical Department of the University of Coimbra (see http://www.mat.uc.pt/ cmuc/lcm/endoscopic.html), with the collaboration of medical doctors from the Faculty of Medicine of the University of Coimbra and the University Hospital of Coimbra. Later on, in October 2007, we initiated a collaboration with the University of Texas at Austin (UT Austin), in the Institute for Computational Engineering and Sciences (ICES), involving Omar Ghattas, Georg Stadler, Chandrajit Bajaj, Bjorn Engquist and Richard Tsai. These researchers are now members of the research team of this project. The company Given Imaging (Yoqneam, Israel, http://www.givenimaging.com) is also our partner in this project (consultant: Doctor Elisha Rabinovitz, PhD, Chief Scientist). Acron / Ref GOLEM Title GOLEM: Realistic Virtual Humans Funding EU, FP7-People Descript. The overall objective of GOLEM is to share knowledge between Industry and Academia in order to successfully achieve the following scientific and technological objectives. The main goal of the project is to carry out multidisciplinary research that will result in technology that radically improves the visual appearance and behaviour of virtual characters (avatars), while streamlining the production pipeline and keeping them customizable and affordable. This will have a relevant impact in 1) 206 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA industries (such as movies or games) 2) academia (by advancing the state of the art in the related research fields) and 3) neuroscience (by using the avatars in novel experiments about presence in virtual environments). GOLEM encompasses two complementary objectives; the first objective is the development of a novel, optimized pipeline that covers capture, synthesis and animation of realistic virtual humans in real time, which will enhance current state-of-the-art techniques to create virtual humans in fields such as game production or cinematography. It is estimated that its development will save up to 90% of time in the animation process. Based on the achieved results, the second objective of this project is to conduct novel research on presence in virtual environments. Acron / Ref GTI-CANE Title Generic Transport In Context-Aware NEtworks Funding FCT/PTDC Descript. The overall goal of GTI-CANE is to design and demonstrate a new architecture for the efficient support of context-aware multiparty sessions in NGNs, using the above described concepts along with intelligent network control entities to provide a stable high-level transport to applications while taking care of low-level, dynamic issues like network selection and mechanisms for seamless mobility Acron / Ref HE[eee]SIT[u]ATION Title HE[eee]SIT[u]ATION: Portuguese Hesitation Models Funding FCT/PTDC Descript. The main objective of this work is to establish hesitation models of continuous spoken European Portuguese, that is, to identify the pertinent linguistic characteristics (features) of the phenomenon that are regular in its production. 207 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Operational objectives are the following: a) To describe Portuguese hesitation phenomena, under acousticprosodic and morphologic-syntactic parameters. b) To define linguistic rules and models for the automatic identification and handling of hesitations in continuous speech. c) To create an annotated database of hesitations for the European Portuguese that will be available to the speech and language research community. Acron / Ref HoHus Title High-performance Onboard Hyperspectral Unmixing Systems Funding IT Descript. Hyperspectral imaging has recently emerged as a powerful remote sensing technology. The huge data volumes acquired by these sensors put stringent requirements on data processing techniques as most of the remote sensing applications require an immediate response. The project aims at the development and implementation in GPU and FPGA hardware of the main steps of the unmixing techniques in a parallel fashion. The full unmixing system supported by specialized hardware may be suitable in the future for real-time onboard processing. Acron / Ref Title InVivoMuscle Development of “in vivo” experimental techniques and modeling methodologies for the evaluation of the mechanical load applied on the musculoskeletal system Funding FCT/PTDC Descript. The main goal is to pursue interdisciplinary research involving muscle physiology, biomechanics and neuromuscular control. The actual focus is to conduct research for the evaluation of biomechanical load on the musculoskeletal system. Our underlying hypothesis is that the increasing 208 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA of the amount of exercise can positively influence biological tissue morphology and functional mechanical properties. Nevertheless, excessive loading, both in intensity as well as frequency and volume, can be associated to acute and chronic musculoskeletal impairments. We aim to study the effect of specific mechanical loads in the musculoskeletal system, with special emphasis in the muscle-tendon complex, and the cartilage. The study will be centered on architectural/structural, functional and neuromuscular chronic and acute changes associated to the mechanical load supported while the body is undergoing exercise routines, of moderate to high mechanical cyclic loading. To accomplish the study of the biological tissue chronic and acute adaptations to cyclic mechanical loading two complementary approaches will be used: (1) in vivo imaging methodologies (magnetic resonance imaging - MRI - and ultrasonography - US); (2) biomechanics modeling. We are concerned with the changes in muscle and tendon stiffness, cartilage thickness and collagen arrangement. The neuromuscular control systems are sensitive to neural fatigue, and this can be measured through EMG. These changes will be assessed and introduced into the models throughout the redefinition of the activation process. Structural and functional analysis of cartilage and muscle-tendon complex before and after mechanical load will be available from MRI and SE. The resulting information will be correlated and those changes will be related with the estimated joint loading (using biomechanical modeling). All this data will be further analyzed applying clustering techniques for exploratory data analysis, crossing it with the different types of mechanical loads. 209 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref LIFEisGAME Title LIFEisGAME: LearnIng of Facial Emotions usIng Serious GAMEs Funding FCT, UT Austin Descript. To carry out research that leads to a system capable of facial synthesis in real time with cinematographic quality To explore different models to define the most adequate tangible user interface to allow an immersive behavior when interacting with people that sufer of ASD To disseminate results to the public and to the scientific community Acron / Ref Title LTE-Mob Integração de LTE nas Arquitecturas de Redes Futuras: uma Perspectiva de Mobilidade Funding PT-Inovação Descript. Para um operador de telecomunicações é muito importante identificar a melhor forma de evoluir a sua rede de acesso para integrar as novas tecnologias existentes, minimizando as modificações na sua infraestrutura de suporte. O objectivo deste projecto é investigar a arquitectura de suporte ao LTE (Long Term Evolution), nomeadamente o EPC (Evolved Packet Core), com especial enfoque nos: (1) mecanismos e parâmetros de Qualidade de Serviço (QoS) suportados em cada um dos segmentos da rede: acesso e core; e estudo dos processos de gestão de mobilidade definidos pelo 3GPP e a sua integração em ambientes dinâmicos e com a plataforma IEEE 802.21 Media Independent Handover (MIH). Actualmente, mesmo estando num ambiente residencial, os utilizadores preferem utilizar o telemóvel para efectuar chamadas em vez do telefone da rede fixa. No entanto, a cobertura disponibilizada em ambientes residenciais pelas tecnologias móveis nem sempre é eficaz. Neste sentido, as femtocells poderão desempenhar um papel significativo e, como tal, este projecto irá investigar e propor um conjunto de 210 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA mecanismos para expandir a arquitectura LTE/EPC com suporte para configurações baseadas em femtocells. Finalmente, será também efectuado o estudo da arquitectura e funcionalidades do modo relay para LTE e a sua usabilidade em cenários residenciais e empresariais. Acron / Ref MBIR Title MBIR-Multispectral Biometric Iris Recognition Funding IT Descript. The main goal of this project is to assess the amount of discriminating information that can be used for iris biometric purposes, according to the spectrum and intensity of light used in the acquisition scene. The use of different light spectrums for iris recognition purposes has been receiving growing attention, due to the potential of performing image acquisition at large distances and uncontrolled environments, which enables any application where the cooperation of the recognizable subjects is not expectable (forensics). Acron / Ref MuViDisco Title Multiview Video Disparity Compensation using Geometric Transforms Funding IT Descript. The main objective of this project is to develop a novel prediction model that we expected to increase the performance of traditional 3D video encoders. This technique will efficiently exploit geometric transformations to warp each image block from one view to another, thus modeling the disparity effect. 211 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref MUVIS Title MUlti-view distributed coding for VIsual Sensor networks Funding FCT/PTDC Descript. Distributed video coding (DVC) is a compression paradigm based on two key Information Theory results from the 70s: the Slepian-Wolf and the Wyner-Ziv theorems. Contrary to the available predictive video codecs, DVC codecs exploit the source statistics at the decoder providing functional benefits such as: 1) flexible distribution of the computational complexity between encoder and decoder; 2) in-built robustness to channel losses; 3) exploitation of Inter-view data correlation at the decoder. These functional benefits are very important for visual sensor networks, a network of wireless low-power video camera nodes, used for a wide range of applications such as surveillance, monitoring of remote areas or tele-presence systems. Visual sensor networks are characterized by: 1) Inter-view correlation between camera nodes with overlapped views; 2) up-link communication between many encoders (one at each camera node) to a few decoders; 3) independent compression of each view, since collaboration between cameras is difficult to implement or rather inefficient. Due to these characteristics, it is not efficient (or possible) to compress each captured view at a central node with the typical predictive approach, e.g. using the recent multi-view video coding H.264/MVC (Multi-view Video Coding) standard, since it implies to exploit spatial, temporal and Inter-view correlations at a rather high complexity encoder. The architectural distributed benefit since coding it approach does not provides require a any significant Inter-camera communication to explore the Inter-view correlation while the predictive approach requires the availability of all views at some central encoding location, forcing communication between cameras. This project will advance state-of-the-art by developing competitive multi-view DVC solutions for visual sensor networks, notably by proposing: 1. Side information (SI) creation and correlation noised modeling: To 212 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA fully exploit the potential of the multi-view distributed video coding paradigm, high quality side information (an estimation of the source created at the decoder) must be created by (jointly) exploiting temporal and Inter-view correlations. In this case, solutions that combine temporal and Inter-view SI estimators by using preliminary decoded data as helper information will be proposed. In addition, correlation noise models capturing the statistical correlation between the side information (available at the decoder) and the source (available at the encoder) will also be proposed along with the estimation of the relevant parameters. 2. Hybrid predictive-distributed video coding: The combination of predictive coding techniques, to exploit the temporal correlation, with distributed coding techniques, to exploit the Inter-view correlation, may be a successful “cocktail” to obtain improved rate-distortion (RD) performance. This approach was never exploited before (as much as the authors know) and will require to reinvent popular coding techniques at both encoder and decoder. In this case, it is also expected to obtain error resilience improvements, which is quite important in this type of error-prone networks (typically wireless). Acron / Ref MuMoMgt Title Gestão de Mobilidade e Multicast em Redes de Acesso Heterogéneas Funding FCT/PTDC Descript. The project intends to define, develop and deploy a Wireless Access Network that supports multicast traffic in a mobility environment and manages network resources efficiently. The main objectives are: (1) To propose, design and evaluate a signalling mechanism to manage multicast sessions over heterogeneous wireless networks; (2) To propose and evaluate a mobility solution to provide seamless handover of multicast groups; (3) To propose and evaluate resource management algorithms to support multicast groups over heterogeneous wireless technologies. This Wireless Access Network shall be exploitable not only by the 213 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA conventional Internet Service Providers (ISP), such as PT, but also by the content providers that will exploit the DVB spectrum. Since DVB is a broadcast technology, it is necessary to provide a return channel in a different technology, so both types of wireless providers need to cooperate. Acron / Ref NECOVID Title NECOVID: Negative Covert Biometric Identification Funding FCT/PTDC Descript. The main purpose of this project is to address the feasibility of an automated system that performs covert and reliable biometric recognition, using the iris as single trait. Obviously, this type of biometric recognition is extremely ambitious and brings many challenges to the pattern recognition task, namely due to the many types of non-deal images that result of the imaging conditions and acquisition protocols (at-a-distance, on-the-move and under dynamic lighting conditions) The proposed approach to deal with these extremely challenging conditions is based on the concept of negative (a-contrario) recognition, i.e., to prove that an individual is not among a group of people already known to the system. The key insight is that although the quality of the captured data possibly denies the positive recognition with enough confidence, perhaps it is still possible to assure that data is not correspondent to a subset of the enrolled templates, which for most of the everyday situations is the essential. The range of potential applications to the type of system proposed for this project is obvious. Indeed, this type of applications is regarded for the Pattern Recognition community as ‘’the grand- challenge’’ (e.g., ''Biometrics: a grand-challenge'', A.K. Jain), due to the implications that they can have in modern societies. 214 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref NETS Title Next Generation Network Operations and Management Funding FCT/CMU Descript. Effective network management has been widely recognized as a grand challenge. Enterprise networks spend an increasing amount of their IT budgets (up to 70% in 2008) in order to only maintain their current operating environments, rather than to add new, value-adding services and equipment. A $1000 server that demands annual maintenance cost of $2000 illustrates a simple example of the management problem. This excessive cost of network management is mainly due to the large scale of networks, the heterogeneity of different technologies, and their subtle interactions. The goal of NeTS is to develop a novel network operation and management framework that departs from conventional approaches through a cross-disciplinary research collaboration based on hierarchical network abstraction modeling, structure learning of probabilistic graphical models for machine learning, and wavelet and kernel-based signal processing technologies. In multiple phases, NeTS will be progressively deployed in the Portugal Telecom (PT)’s operation and management of high definition IP/TV network to illustrate the impact of our proposed research. High Definition IP/TV network is one of the highest growth services for PT and is regarded as a key strategic area in PT. The grand challenge of this complex network is to deliver, without failures, a high quality service efficiently – this requires novel management/operations systems to detect anomalies, identify their root-causes, and predict future network behavior in real time. Existing network management systems for IP/TV are generally focused on monitoring and on simple correlation of events analysis; using these management systems still incurs in excessive costs and delays. NeTS will be deployed online in part of PT’s IP/TV network in order to assess its performance and expected network operations and management cost reduction. Network operators will play a key role in assessment and finetuning of our systems. Our approach to this research problem is significantly different from conventional approaches that focus on monitoring and correlation analysis. We bring together insights from 215 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA network abstraction and statistical and heuristic machine learning methods and closely tie them to build an intelligent network abstraction model. Network insights show that the network configuration dictates the behavior of the network control plane and the network control plane dictates the behavior of the data plane. We bring configuration, control and data plane abstraction models together with probabilistic graphical models to derive an intelligent and predictable network abstraction model of an enterprise network. Further novelty of our approach consists of performing automatic learning of the graph structure using concepts from Bayesian model selection, information theory, and optimization; this will be done step-by-step using first static network configuration elements, then by summarization and filtering of dynamic control plane information, and finally of data plane information. Once a graphical model is obtained for the network, we will perform inference on the graph to identify anomalies and their root-causes and to predict future network behavior. Finally, we will explore the concept of forcing function to impose restrictions on the network configuration that simplify the graphical model and the inference process. This project heavily leverages on previous network abstraction modeling work with PT in last 3 years. The direct impact of this research will be on the network operations and management of PT’s IP/TV service. Although at this point it is not possible to say what the real impact will be, we anticipate a reduction of at least 30% on network operations and management costs. This is supported by the anticipation that support teams will be directed to a single extremely likely root cause of a failure rather than to multiple possible failure points, that root-causes will be detected in the time-span of seconds rather than days, that service may be brought up in minutes s rather than days, and that network behavior and failures may be anticipated, thus reducing down time several orders of magnitude. We expect other enterprise network-supported services may also benefit from NeTS because the network modeling and management functions researched in this project are generic to enterprise networks. To achieve NeTS’ goals, we formed an interdisciplinary team that includes experts in Networking (Dr. Sobrinho, IT/Lisboa, Dr. Kim, ECE/CMU and Dr. Alegria, PT), Machine Learning (Dr. Cardoso, 216 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA INESC/Porto and Dr. Morla, INESC/Porto), Information Theory, Communications and Signal Processing (Dr. Rodrigues, IT/Porto), as well as Optimization (Dr. Xavier, ISR/Lisboa). Furthermore, we obtained a strong collaboration commitment from Portugal Telecom with their operational experiences and manpower that will be explored during all phases of the research project (see attached letter of support from PT). We plan to integrate several PhD students who are already enrolled in (e.g. Tiago Carvalho and Tiago Quelhas) and in the process of applying to the CMU-Portugal program. It is also important to note that we have created various PhD-level courses within the CMU-Portugal program in topics directly relevant to this research proposal, as well as taken the responsibility for advanced courses within the CMU-Portugal Master’s program in Information Networking. Class projects for graduate and undergraduate students will also focus on research issues that contribute to the success of NeTS. Furthermore, PT employees who are enrolled in the Master’s program will work on NeTS projects and continue their work when they return to PT after completion of their degrees. CMU and Portuguese PIs will ensure that project development, milestone achievement, and partner coordination are on track with plan and take measures to correct any deviation to the project timetable. This will be facilitated by the existence of previous work between partners e.g. PT and CMU and shared PhD students. Acron / Ref Title Funding Descript. NOISYIRIS NOISYRIS - Synthesis of Noisy Iris Images for Biometric Recognition Purposes IT Tthe main goal of this project is the development of a prototype system able to generate synthetic close-up iris images, according to a set of parameters specified by users. This system will be integrated in the UBIRIS web site, and will constitute as a valuable tool in the evaluation of the robustness of iris recognition methods. 217 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref Title Novel information processing methodologies for intelligent sensor networks Novel information processing methodologies for intelligent sensor networks Funding FCT/CMU Descript. Over the past few years, we have witnessed tremendous advances in the miniaturization of low cost electro-mechanical devices that exhibit several sensing capabilities (e.g. temperature, pressure, vision, etc) and possess signi cant embedded processing and low-range wireless communication. This triggered interest in wireless sensor networks (WSN) where large collections of such small wireless sensor nodes are scattered across critical geographical areas or infrastructures to execute a variety of monitoring and acting tasks. While the use of WSN is crucial to assess the state of a physical system, the ultimate engineering goal is to control such system to perform certain desired tasks. We refer to systems that close the loop around wireless sensor networks as cyber-physical systems (CPS). Cyber-physical systems are physical and engineered systems the operations of which integrated by a are monitored, computing and coordinated, controlled communication and infrastructure. Examples of CPS include medical devices and systems, aerospace systems, transportation vehicles and intelligent highways, defense systems, robotic building and systems, process environmental control, control factory and automation, smart spaces. To realize the immense potential bene ts of CPS in real-life applications, a plethora of novel problems lying at the intersection of statistical signal processing, control, communication theory, and distributed optimization, must be addressed. Indeed, it is clear that to achieve desired networkwide detection, estimation or control objectives, system designers should deal eciently with simultaneous challenges, typically tackled in separate engineering disciplines. The challenges include securing energy-ecient operation as the nodes are usually batteryoperated and constrained to small power budgets, developing distributed analogues of centralized signal processing and control 218 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA algorithms, coping with the dynamic communication topology interconnecting the sensing nodes, dealing with the random nitebandwidth wireless medium, etc. The need for this interdisciplinary e ort is mirrored in the creation of this project's research team which gathers signi cant expertise in a wide range of complementary topics in the disciplines of control, signal processing, optimization, information theory, along with the private technology company ISA (Intelligent Sensing Anyhwere) which holds a vast experience in the deployment of sensing networks for telemetry, environmental monitoring and energy eciency. The main goal of this project is to address certain key research issues in the eld of wireless sensor networks and map the research results into implementations on prototype testbeds, thereby showcasing real-life applications with social and economic impact. More precisely, the expected outcomes of this project are: 1. Fast algorithms for sensor selection While energy-eciency is of a lesser concern in wireless LANs, it is of critical importance in large-scale wireless sensor networks (WSN), as the in-situ unattended sensors are typically powered by nonrechargeable batteries. Thus, aggressive restraints on sensor usage must be observed to ensure a prolonged WSN lifetime. When the WSN is used for event discrimination (e.g., intruder/no intruder, re/no re, etc) this translates into nding which minimal subset of the deployed sensing nodes is sucient to activate for a given query, whilst securing a prescribed detection performance. It is clear that nding the optimal subset of a formidable optimization challenge. Indeed, sensors represents forming all possible combinations of few sensors and checking the respective performance is computationally intractable even for moderate network sizes. Additionally, a WSN is typically immersed in a noisy environment subject to various degradation factors such as wireless fading and interference phenomena. These induce communications constraints between the sensors themselves or between the sensors and a fusion point responsible for the decision. It is thus important to explicitly account for the impact of this adverse phenomena in the design of reliable sensor selection algorithms. In this project, we will develop fast (non219 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA combinatorial) optimization algorithms for several sensor selection application scenarios which strike a desirable tradeo among detection performance, computational complexity and robustness with respect to the fading wireless medium. 2. Secure WSN communication schemes Security is an issue of paramount importance in current communications systems and networks. The wide deployment of wireless sensor networks, together with the broadcast nature of the wireless medium, calls for advanced secure mechanisms to protect potentially sensible information against possible eavesdroppers. Traditionally, security is viewed as an independent feature with little or no relation to the remaining data communication tasks and, therefore, state-of-the-art cryptographic algorithms are insensitive to the physical nature of the wireless medium. However, there has been more recently a renewed interest on information-theoretic security - widely accepted as the strictest notion of security - which calls for the use of physical-layer techniques exploiting the inherent randomness of the communications medium to guarantee both reliable communication between two legitimate parties as well as secure communication in the presence of an eavesdropper. This paradigm is particularly interesting for wireless sensor networks since it may not be possible to secure information using state-of-the-art complex cryptographic protocols due to energy budget considerations. In this project, we will study the fundamental security mechanisms pertaining to the sensor network communications medium by exploiting tools from information theory. In addition to revealing the secrecy limits of wireless sensor networks, we will also construct speci c transmission schemes appropriate to convey information between sensors and a fusion point in a reliable and secure manner, taking into account the energy and bandwidth restrictions of sensor networks. 3. Secure Control of Cyber-Physical Systems Modern cyber-physical systems raise signi cant engineering challenges because of their scale, their need to bridge the physical, information and communication 220 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA technology domains and their need to operate eciently, securely and reliably. Today's methods and tools for control systems engineering are unable to systematically cope with such requirements. Security, in particular, must enter the design process and cannot be considered an afterthought. Today's designs are mainly driven by performance/cost considerations, resulting in brittle systems susceptible to attacks starting from both the physical and cyber side. The problem arises because CPS tend to be open systems, accessible both physically and through the communication network. The increasing use of the Internet will allow attackers to execute their attacks remotely. Next generation systems will be particularly susceptible to security threats if this concern is not addressed at design time. CPS, di erently from traditional IT systems, not only have to be able to detect malicious attacks but they need to guarantee continuity of operations under attack, perhaps with decreased functionality, through graceful degradation rather abrupt. They also need to be able to recon gure to eradicate attacks and restore full functionality. We propose to introduce a new approach to control systems design, by formally de ning security attacks on control systems and by developing tools to analyze the e ect of security attacks, to design attack resilient control systems and develop quantitative metrics to assess the natural tradeo between security and performance. 4. Testbed and Implementation We propose the employment of an experimental platform to validate the outcomes of the research. ISA will assist in de ning the set of applications that better align with both their business and with the current market trends. We will adopt the Sensor Andrew platform available at Carnegie Mellon at the rst stage, with the plan to enhance the platform and deploy a smaller scale testbed at IST in Portugal at a later stage. Sensor Andrew is a project aimed a building a large scale wireless sensoractuator network infrastructure on the CMU campus. The testbed comprises the basic sensor and actuator hardware, the software that runs on this hardware allowing access to the sensor and actuator hardware, and nally the network protocols and services required to support communications and routing within large-scale sensor networks. 221 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA We plan to build an event noti cation system that will allow us to perform sensor selection, event detection and real time control using the Sensor Andrew platform. At the core of the system is the use of an XMMP server that allows timely retrieval of selected sensor data and delivery of control commands. This infrastructure will allow us to validate the proposed methodologies and algorithms in a real setting, to assess its robustness to uncertainties and resilience to security attacks. The vision of this project is to advance CPS and WSN design by integrating expertise outperforming the along common several key methodologies dimensions, which thereby ignore their interdependence. This is re ected in the formation of the project team which aims at realizing this fruitful synergism between multidisciplinary academic researchers and a highly experienced industry partner. In the detailed outline of the proposed research, we expose clearly how this project builds on such interaction, by describing how each team member participates in the four main lines of research aforementioned. Moreover, the outcomes of this project are also of direct interest to the running FCT project URBISNET-Urban environmental networked sensing using a public transportation infrastructure (PTDC/EEA- CRO/104243/2008), and collaborative work with the URBISNET sta will leverage both projects. Acron / Ref P3DTV Title Performance Optimisation in 3D TV Broadcasting Services Funding IT Descript. This project addresses the emerging 3D TV broadcasting services by investigating the problems associated with transmission of different stereo video coding formats. It is comprised of two main parts that run in parallel and communicate between each other by exchanging technical information in order to optimise the performance of the broadcasting system in terms of received quality and channel useful capacity. The research on 3D video deals with characterisation and optimisation of 3D 222 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA video coding algorithms by developing and testing suitable error resilience methods for broadcasting such type of content. On the decoder side the project addresses error concealment methods to cope with transmission errors and improve the quality delivered to users. The particular issues related to coded depth information are receiving special attention in this project as this is the major component of 3D video which makes it different from classical 2D. Appropriate distortion measures for depth will be used to optimise performance. The project makes use of the most recent video coding standard for video (H.264/AVC) and its extension for multiview coding (H.264/MVC). Finally, a method to characterise the radio propagation channel will be developed for varying deployment scenarios. A refined method is required to effectively measure the signal coverage in DVB-T networks and to extract the effective parameters for the error pattern generator required for both source and channel coding optimisation of DVB-T transmissions. Additionally, the measured data to be obtained and included in a database for various geometries and at a number of frequencies will represent a quantum improvement, both in volume and accuracy of the database presently available to system designers. This will form a framework to radio system designers to propose fading mitigation techniques based on link level analysis using the proposed error pattern generator. Acron / Ref PADU Title Performance and Durability of Future Wireless Sensor Networks Funding EU Descript. Important research questions: how should WSNs be integrated into the Future Internet and what special challenges do they present to designers and implementers, taking into account that all aspects of the design of WSN architecture, communication protocols, and mechanisms must be considered under the viewpoint of the limited energy resources available to sensor nodes. Moreover, to be able to compare different proposed solutions with 223 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA respect to the requirements of users and operators, a thorough evaluation of the WSNs performance is needed. Hence, the development of unified methods for the evaluation of WSNs is a very important task that is not addressed sufficiently, yet. Acron / Ref PAIRUE Title Fusion of Palmprint and Iris Recognition in Uncontrolled Environments Funding IT Descript. The main objective of this project is to design a biometric identification system to be used in uncontrolled data acquisition scenarios. In order to do this, and thus enjoy all the advantages of this type of systems mentioned above, there are four main challenges that have to be solved. These challenges can be summarized as: - Acquisition of data with enough discriminating information - This is a fundamental phase in devising any biometric application. The data acquisition setup (operating wavelength, type of illuminant, levels of luminance, number and position of illumination sources) and the protocol demanded to subjects play a crucial role in the quality of the acquired data and determine the success of the biometric recognition task. Thus, a convenient data acquisition framework should be devised in the earliest stages of the project. - Accurate biometric data segmentation - As mentioned above, traditional biometric applications, such as computer access and border control, require the user to submit a biometric in a highly controlled manner. In this kind of constrained biometric capture, users take deliberate actions to cooperate with the biometric systems, such as facing forward and standing still. This makes it easier for the system to extract the biometric information from the raw image/video data, by performing a simple segmentation. However, when the acquisition scenario is relatively uncontrolled, the acquisition system will have to be able to perform a much more sophisticated segmentation to extract the desired biometric information from the raw image/video and guarantee 224 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA that it is not confused with noise, which can be quite high. - Correction of pose and illumination variations - After being able to extract the biometric data (i.e., determine its exact location) from the raw image/video data, the system has to deal with the problem of pose and illumination variations due to unconstrained biometric capture. After all, when the capture is done in an uncontrolled fashion, the biometric data can have different sizes, different orientations, different degrees of deformation and be subjected to different types of illumination, all of which have to accounted for in order to be able to perform a successful user recognition. This process of dealing with the captured data variability can be seen as form of normalization. - Robust user identification - After the biometric data has been normalized, robust recognition algorithms have to be developed for performing the identification itself. To improve the identification performance, more than one biometric trait can be considered, in which case The different four main fusion strategies challenges above will have have to to be be dealt considered. with, while guaranteeing that the typical requirements imposed on biometric systems, like universality, uniqueness, permanence, collectability, performance or acceptability are also met. This will ensure that the developed identification system will be a successful one. Acron / Ref Title QUALINET European Network on Quality of Experience in Multimedia Systems and Services Funding ESF, COST Descript. The goal of this Action is to establish a strong network on Quality of Experience (QoE) with participation from both academia and industry. Its main objective will be to develop and to promote methodologies to subjectively and objectively measure the impact in terms of quality of future multimedia products and services. 225 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref QuantPrivTel Title QuantPrivTel: Quantum PrivateTelecommunications Funding FCT/PTDC Descript. QuantPrivTel – Quantum Private Telecommunications is a research project that joins the theoretical expertise of the Security and Quantum Information Group (SQIG) at Instituto de Telecomunicações (IT) in Lisbon and the skills in quantum optics experiments of the Optical Communications group (OC-Av) at IT Aveiro to tackle new challenges in the emergent and multidisciplinary area of quantum private telecommunications. Its main scientific objectives are: 1. To propose new quantum protocols for important problems of privacy in telecommunications that cannot be solved with the now-famous quantum messages key distribution, with enhanced namely the security authentication and fair of classical contract signing; 2. To develop and implement efficient methods to generate and detect single photons in optical fibers, as well as pairs of entangled photons, and to use them to demonstrate in the laboratory our original quantum protocols for message authentication and fair contract signing. Some contributions are also expected to more general and forwardlooking problems, such as new schemes to improve phase estimation and precision measurements based on phase distinguishability and quantum correlations, and their possible applications to positioning systems and satellite communications, or the design of environmentassisted quantum channels, a very novel idea we intend to explore. 226 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref ReAlImage Title Regularization Criteria and Fast Algorithms for Imaging Inverse Problems Funding FCT/PTDC Descript. The goal of the project is to advance the state of the art in criteria and algorithms for solving imaging inverse problems. The research fronts that we aim to push forward are the following: a) In standard photography, and even more in computational photography (CP), deconvolution plays a key role. In the standard case, deblurring is used to compensate lens softness, while in many CP applications (e.g., coded aperture) deconvolution is itself responsible for producing the images. Even with the CP ''friendly'' direct operators, prior knowledge (regularization) is required to solve the IP. In this work front, we will develop new regularization criteria, beyond the currently used sparseness-inducing 1-norm and total-variation. In particular, we will consider: compound regularizers; criteria that adapt automatically to the intrinsic complexity and/or the local structure of the underlying image; non-local regularization (which has only been used for pure denoising problems, with excellent results). b) Realistically, full knowledge about the convolution operator is seldom available: the exact motion causing a motion blur is of course unknown; coded aperture imaging is highly sensitive to the exact knowledge of the aperture, which is usually obtained by a previous careful calibration procedure. These observations stress the general importance of blind deconvolution. In this topic, we will research criteria for blind deconvolution, for problems with varying degrees of uncertainty about the direct operator. In particular, we will take steps towards the ''holly grail'' of blind deconvolution: an objective function whose minimization yields optimal image and convolution estimates. c) Some of the currently fastest algorithms for CS and image deconvolution under standard regularizers were developed by researchers in the project team. The new criteria mentioned in (a) and (b) will result in new, more challenging optimization problems, requiring new algorithms. This will be the third core research direction of the 227 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA project, continuing our successful recent line of work. Bregman iterations and augmented Lagragian methods will be fundamental tools in our quest. Acron / Ref Title Funding Descript. SearchCol SearchCol: Meta-heuristic Search by Column generation FCT/PTDC Many relevant practical problems can be modeled as combinatorial optimization problems (COPs). Examples are the definition of routes for vehicles, schedules for machines, or the dimensioning of telecommunication networks. Meta-heuristics (MHs), such as tabu search or genetic algorithms, are the most successful methods in providing good-quality solutions in reasonable amounts of time for large-size instances of several COPs. The aim of this project is to propose a new MH, entitled Search by Column generation (SearchCol), for COPs. SearchCol algorithms will be applied in specific problems from four areas: production planning and scheduling, telecommunications, forest management, and cutting and packing. The main distinctive feature of SearchCol is that its ingredients (such as construction of solutions, neighborhood structures, or crossover operators) are based on column generation (CG). We aim at proving that a suitable search strategy (provided by the hybrid MHs framework) taking advantage of decomposition exact methods (CG) quickly leads to high-quality solutions for NP-hard COPs. The evidence is that CG provides tight lower bounds (in minimization problems) on the optimal value and that the columns belonging to the restricted master problem define a search space where high-quality solutions exist. The drawbacks of standard MHs (the lack of ameasure of the quality of the solution obtained and the lack of a well defined stopping criterion) are overcome in SearchCol since the lower bound provided by CG is available. 228 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref SIMBAD Title Beyond features: similarity-based pattern analysis and recognition Funding EU, FP7 ICT Descript. The challenge of automatic pattern analysis and recognition (or machine learning) is to develop computational methods which learn to distinguish among a number of classes from examples, with a view to endow artificial systems with the ability to improve their own performance in the light of new external stimuli. This ability is instrumental in building next-generation artificial cognitive systems which, as opposed to traditional machine or computer systems, can be characterized as systems which cope with novel or indeterminate situations, which aim to achieve general goals as opposed to solving specific problems, and which integrate capabilities normally associated with people or animals. The socio-economic implications of this scientific endeavor are enormous, as it will have applications in a wide variety of real-world scenarios ranging from industrial manufacturing to vehicle control and traffic safety, to remote and on-site (environmental) sensing and monitoring, and to medical diagnostics and therapeutics. This project aims at bringing to full maturation a paradigm shift that is currently just emerging within the pattern recognition domain, where researchers are becoming increasingly aware of the importance of similarity information per se, as opposed to the classical feature-based approach. Indeed, the notion of similarity has long been recognized to lie at the very heart of human cognitive processes and can be considered as a connection between perception and higher-level knowledge, a crucial factor in the process of human recognition and categorization. We shall undertake a thorough study of several aspects of purely similarity-based pattern recognition methods, from the theoretical, computational, and applicative perspective. We aim at covering a wide range of problems and perspectives, considering both supervised and unsupervised learning paradigms, generative and discriminative models, and our interest will range from purely theoretical problems to real-world practical 229 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA applications. We shall apply our algorithms to challenging biomedical problems that lend themselves particularly well to similarity-based approaches, namely, to the analysis of tissue micro-array images of renal cell carcinoma and to magnetic resonance brain imaging for the diagnosis of mental illness. Acron / Ref SELF Title Descoberta e decisão automática de recursos Funding PTIn Descript. A tendência actual e futura é de que as redes de comunicação se tornem bastante complexas, tanto a nível do número de elementos como a nível da sua diversidade e complexidade. Durante os últimos anos tem havido um esforço grande no desenvolvimento de soluções de controlo e de gestão das redes autonómicas, que permitam colocar alguma parte deste controlo e gestão nos próprios elementos da rede para aumentar a escalabilidade e resiliência da mesma. Destes mecanismos de controlo e gestão, a descoberta dos elementos e da sua informação relevante e a decisão automática do aprovisionamento dos recursos, são dois dos pontos fortes em evolução nesta área. Este projecto tem como objectivo definir e implementar mecanismos de descoberta de nós da rede e da sua informação relevante para tomar decisões de aprovisionamento dos recursos da rede de uma forma automática e considerando que nem sempre toda a informação se encontra presente na tomada de decisão. Este trabalho será integrado nas soluções do plano de controlo das plataformas de transporte da PTInovação e permitirá resolver alguns problemas existentes na descoberta existente destas soluções e nos seus mecanismos de decisão. 230 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref Title Serv-CPS Serv-CPS: Server-based Real-Time Ethernet Communication Architecture for Cyber-Physical Systems Funding Descript. FCT/PTDC The objective of this project is developing a network framework, based on switched Ethernet, suitable to support CPS, by including an explicit and efficient support to component-oriented design methodologies. The framework shall support: - Heterogeneous traffic classes with temporal isolation; - Partitioning and virtualization mechanisms; - Hierarchical multi-level server composition; -Dynamic adaptation and reconfiguration of servers with temporal guarantees; - Analytical tools for supporting the design of CPS; - Middleware for service management; Acron / Ref SHOWNet Title Soft HandOver for Wi-fi networks Funding IT Descript. This proposal aims at decreasing the disruption of the active sessions running during the handover by the use of network coding. In our approach, network coding will be the key enabler towards ensuring soft handover, providing the correct delivery of all packets in the running session without duplicating the packets in both networks. In our approach, the idea is to use network coding to send additional coded packets, i.e., linear combination of the original packets, towards the mobile terminal performing handover, to i) enhance information transmission before the handover, when the channel quality for both data and feedback is severely degraded, and 2) improve the probability of correct reception of the information after the handover, when the exact knowledge of the status of the terminals is unknown. These two steps shall be instrumental in achieving a seamless handover. The choice of the number of coded packets 231 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA to be sent before and after the handover needs to take into account several issues, such as the mobility pattern of the mobile terminal, signal variation in both the previous and the new access networks, handover time and the expected performance degradation while handover is taking place. Moreover, the decision of handover with network coding needs also to be addressed, since it is required to evaluate the cost of handover (in terms of signaling and performance decrease) and the additional cost of introducing coding, both in the extra amount of information delivered and its delay in real-time communications. In this approach, we will target Wi-Fi networks and the handover of smart phones between different Wi-Fi access points. The evaluation of our approach will be performed through simulation in the network simulator and on a seamless mobility platform previously developed between IT and PTInovação. Acron / Ref UbiquiMesh Title Cross-Layer Optimization in Multiple Mesh Ubiquitous Networks Funding FCT/PTDC Descript. The objectives are to maximise resource transmission efficiency whilst guaranteeing the quality (of experience) and minimising the effort for each entity/operator. In line with these objectives, optimization mechanism account for: • Information from the different protocol stack layers to optimize the subscriber access performance, and the creation of cross-layer design interactions whilst optimizing the quality of experience (QoE) metrics; • Interaction among the different network entities to make the service available to the subscribers in an optimized way, taking the possibility of having different companies operating the backhaul and the access networks. The focus of the research activities will be the following: • To identify, monitor and optimize QoE metrics for voice and video services in these networks by considering the support of an hierarchy of mesh networks for the identified scenarios; • To define cross-layer mechanisms to optimize the impact of the developed QoE metrics into the concatenated mesh network performance. Our research will explore mechanisms for efficient use of spectrum, for the 232 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA shared medium access and routing onto the concatenated networks, transport issues, as well as the usefulness of context awareness, e.g. positioning, the distribution of the velocities and active services; • To apply game theory concepts to optimize the cooperation among the different agents: subscriber terminal access network nodes (gateway to the operator) and backbone network routers; • To use pricing models to analyse the benefit associated with agent as well as the interactions among different network operators through the use of the optimization methodologies previously proposed. Acron / Ref UMM Title Gestão de Mobilidade Centrada no Utilizador Final Funding FCT/PTDC Descript. The work to be developed in this project relates to the topic of global mobility management in spontaneous wireless environments, i.e., environments that self-adjust to any network topology change. Global mobility management is addressed from a network perspective, and the purpose is to ensure a transparent access to Internet services (e.g Triple Play) for the end-user, who will be able to access his/her subscribed services independently from access attachment point, location, and based upon his/her own requirements (“Quality of Experience”, QoE). In addition, global mobility management is to be analyzed from a decentralized perspective, given that environments to be considered will incorporate wireless local-loops that are based upon end-user willingness to cooperate. Main aspects to focus upon are: 1. Handover management optimization a. Consider QoE as well as available (aggregated) spectrum to provide the user with the best possible connection seamlessly at any time and independent of location, having in mind user expectations. b. Analyze and validate adequate cost functions and metrics to estimate QoE levels on-the-fly. 2. User-centric mobility management a. Investigate and validate algorithms for a self-organized selection of anchor-points, aiming to insure system robustness to highly frequent 233 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA changes. b. Devise a global mobility management mechanism taking into consideration the aspects analyzed in relation to handover optimization and incorporating mobility models that support adequate anchor point selection. Acron / Ref VERE Title VERE: Virtual Embodiment and Re-Embodiment Funding EU, FP7 ICT Descript. This project aims at dissolving the boundary between the human body and surrogate representations in immersive virtual reality and physical reality. Dissolving the boundary means that people have the illusion that their surrogate representation is their own body, and act and have thoughts that correspond to this. The work in VERE may be thought of as applied presence research and applied cognitive neuroscience, and it would also significantly add to scientific knowledge in these areas . Imagine that you could transfer your self to an artificial body – a virtual body as represented in virtual reality or a physical robotic body. Recent advances in cognitive neuroscience show that internalising a body beyond ourselves (external, remote, alien) is possible, that our body representation is highly malleable and may be altered by appropriate changes to the normal stimulus contingencies that we are used to in every day life. The purpose of this research is to make such body transference possible with two different modes (virtual and physical). On top of this technical achievement, that would be underpinned through ongoing neuroscience research on body representation, would be a number of practical applications that will be constructed and investigated during the project. 234 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref VT Title Video transcoding between H.264 and MPEG-2 Funding British Council/CCISP Descript. Acron / Ref Vital Respnder Title Vital Responder - Monitoring Stress among First Responder Professionals Funding FCT/CMU Descript. The goal of the Vital Responder research project is to explore the synergies between innovative wearable technologies, scattered sensor networks, intelligent building technology and precise localization services to provide secure, reliable and effective first-response systems in critical emergency scenarios. The core problem under consideration is to evaluate human stress in real-time under adverse conditions, by means of continuous online vital sign monitoring of first responders. Turning this vision into engineering reality requires significant advances on the several fronts: (a) real-time information gathering of body signals is very hard to achieve in uncontrolled and dangerous environments, (b) GPS based location systems do not work indoors, and (c) inter-disciplinary research between engineers and clinicians on the origins and nature of physiological stress is still at an infant stage. The “silver bullet” is provided by a high-tech company named Biodevices, which together with researchers at the University of Aveiro developed a suite of non-intrusive wearable technologies, as inconspicuous as a t-shirt, capable of gathering relevant information about the individual. 235 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Acron / Ref WebRun Title Interactive Web game to promote the sports practice Funding IT Descript. Create new ways of interacting with Web applications; Producing a usable prototype (hardware + software); Develop new algorithms for load balancing and replication in order to publish the game in a web server with high performance and high availability. 236 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA 4.3.5 Running and Concluded Theses MSc Theses Supervisor Luís Cruz Student Co- Supervisors Face detection and segmentation for realistic avatar construction Daniel Saragoça Pedro Amado Assunção Simão Cardeal Title Salviano Soares End Date 1/2011 Métodos de medição e avaliação de QoS de serviços 2/2011 multimédia em redes IP Model Training for a Portuguese Speech Synthesis 2/2011 System Fernando Perdigão João Carlos Cunha Gomes Fernando Perdigão Carla Sofia Moura da Cruz Pereira de Carvalho Speech Synthesis System from a Sequence of Phones 2/2011 Filipe Condessa Colonic polyp detection in wireless capsule endoscopy images using a local approximation techniques 3/2011 José Bioucas Dias Susana Sargento Ana Cristina Costa Aguiar Rui Manuel Rocha Mário Figueiredo Paulo Serralheiro Filipe Reibeiro Comunicação entre Veículos 3/2011 João Francisco Cordeiro de Oliveira Barros Filipe Perdigão da Costa Fernando Pereira Miguel Lobato de Faria Pereira Capelo Fernando Lopes Carlos Conceição Matteo Naccari Márcio Carvalho Inácio Fonseca Sérgio Faria Luís Lucas Nuno Miguel Morais Rodrigues José Bioucas Dias Jun Li Pedro Miguel dos Santos Alves Madeira Adão João Miguel Barros Silva Mendes Luís Henrique Martins Borges de Almeida André Gonçalo Machado Abelha Ana Fred Filipe André Lourenço Canento SIN: Service-based Interconnected Networks 3/2011 Advances on transforms for high efficiency video coding 4/2011 Renewal of Electrical and Telecommunications Infrastructures at IPC Fernando Lopes João Francisco Cordeiro Sergio Assunção de Oliveira Barros Data Paths in Urban Sensing 3/2011 Vehicular Networks Automation of Software Testing - Dashboard QMSanalyser Compressão de imagens coloridas com MMP 4/2011 5/2011 6/2011 Discriminative Hyperspectral 6/2011 Image Segmentation Electronic Voting Mariana Almeida Rui Costa Focagem Cega de Imagens usando técnicas de MultiResolução 6/2011 6/2011 Informed Network Coding for Minimum Decoding Delay 6/2011 Affective Mouse Electrophysiological Signal Processing for Affective Computing 7/2011 237 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Daniel Enrique Lucani Roetter Student Hugo Moreira de Sousa Pinto Miguel Tavares Coimbra Johannes Pallauf Co- Supervisors João Francisco Cordeiro de Oliveira Barros Klaus Diepold Hugo Pedro Martins Carriço Proença Tiago Velho Sancho Moura Oliveira Pedro Miguel Aparício Dias Hugo Pedro Martins Carriço Proença Rui Silva Daniel Enrique Lucani Roetter Tiago José Costa Pinto Susana Sargento Tomé Gomes Susana Sargento Filipe Neves Susana Sargento Luís Coelho Sancho Moura Oliveira Hélio Alexandre Dias da Silva Anders Lyhne Christensen Susana Sargento Romeu Monteiro Jorge Carapinha Luís Ducla Soares Paulo Salvador Ferreira Frutuoso Gomes Mendes da Silva João Álvaro Abel João Gomes Couceiro Cardoso Luís Miguel dos Santos Serrano Hugo Manuel Lopes Avelar Joel José Puga Coelho Rodrigues João Alfredo Dias Hugo Pedro Martins Carriço Proença Luís Lucas Frutuoso Gomes Mendes da Silva António Nogueira Paulo Lobato Correia Mauro Filipe Martins Ferrão Vitor Manuel Mendes Silva End Date 7/2011 7/2011 7/2011 7/2011 Chest X-rays image 7/2011 diagnosis: An adaptive approach Coding Just Enough: 7/2011 Algorithm Design and Analysis for Coded Networks Comunicação e decisão entre 7/2011 elementos da rede na internet do futuro Comunicação entre veículos: 7/2011 comunicações multimédia Comunicação entre veículos: 7/2011 encaminhamento e optimização de rotas Conillon: Distributed 7/2011 Computing Platform for Desktop Grids Criação e reconfiguração de 7/2011 redes virtuais numa perspectiva de operador Determining Leishmania 7/2011 Infection Levels by Automatic Analysis of Microscopy Images GPU-based Hand 7/2011 Segmentation to Writing-inthe-Air with Gesture Recognition Hand-based Biometric 7/2011 Recognition System for Mobile Devices Interaction in Games 7/2011 Marco Alexandre Cravo Gomes Modulação de magnitude em 7/2011 DSP de vírgula fixa Performance Assessment of 7/2011 Routing Protocols and Fragmentation Approaches for Vehicular Delay-Tolerant Networks Reconhecimento Biométrico 7/2011 da Íris na Região de Comprimentos de Onda do Visível 7/2011 Serious Games Paulo Salvador Ferreira Statistical characterization of Botnets Andre Filipe Santos Barbosa Pedro Costa Correia Anonymity in Wireless Networks Under Traffic Analysis Attacks Associating ECG features with firefighter’s activities Automatic Document Classification and Analysis Botbeans Miguel Tavares Coimbra Pedro Nogueira Abel João Gomes Title 7/2011 238 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Joel José Puga Coelho Rodrigues Student Co- Supervisors Ivo Charro Lopes Luís Miguel Ramos João Francisco Fausto José Canhoto de Bárbara Cunha Cordeiro de Oliveira Paiva Vieira Pinto Barros Isabel da Piedade Xavier Machado Nuno Pombinho Alexandre Fernando Perdigão Marco António Nunes José Luís Cruz Anselmo Vivas David Ralo Luís Ducla Soares Ângela Cunha José Mário Verónica Costa Teixeira Figueiredo Serra Pinto Orvalho Rui Jorge Henriques Calado Lopes José Miguel Gomes Teixeira de Sousa Fernando Lopes Jérôme Nameche Joel José Puga Coelho Rodrigues Maicke Cabral de Paula Rui Manuel Rocha Carlos Rodrigues Rui Manuel Rocha Hugues Silva Rui Miguel Neto Marinheiro João Maria Azedo Rendeiro Rui Manuel Rocha Joel José Puga Coelho Rodrigues David Possidónio David Miguel Monteiro End Date 7/2011 Ubiquitous Computing Approaches for Mobile Health Applications Information System over Resource-constrained 8/2011 Platforms For Firefighters A story in the museum 9/2011 Automatic Segmentation of 9/2011 Speech and Music in Audio Signals Compressão de imagem de 9/2011 baixa complexidade para tele-contagem - II Construção de uma mesa 9/2011 digital Multi-touch e desenvolvimento de uma aplicação de animação facial Verónica Costa Teixeira Pedro Henrique Pinto Orvalho Silva Rodrigues Isabel da Piedade Xavier Machado Alexandre Title Management of users and user profiles in SAP: Direct Approach vs Web Portal Approach Paulo Lobato Correia Miguel Sales Dias Fernando Ferreira Carlos Almeida Secure Face Recognition Talking 3D characters in realtime An architecture using keybased routing for managing anything-as-a-service clouds Development of a Portable PV-FED Acquisition and Processing Device Construction of a Real Vehicular Delay-Tolerant Network Testbed Domo Zonse - Integrating Sensor Networks into Home Networking Architectures Home Sense - Smartphonebased monitoring and control in Home Environments Hybrid adaptive optimization in a virtualized computing environment Smart Power - Power Consumption Optimization through WSN-based control and monitoring The use of NFC phones on Patient Health Records 9/2011 9/2011 9/2011 10/2011 10/2011 11/2011 11/2011 11/2011 11/2011 11/2011 11/2011 João Ascenso Marcos Salvador Video authentication for H.264/AVC 11/2011 João Ascenso Gonçalo Barreira Video streaming over a IEEE 11/2011 802.11n wireless network 239 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Pedro Amado Assunção Student Co- Supervisors Luís Bernardes Title Adaptação do Protocolo DCCP para Tráfego VoIP Miguel Tavares Coimbra Celso Ferreira CellNote: Image processing modules for cellular images Miguel Alexandre Rui Pedro de Magalhães Pinto Teves da Claro Prior Silva Construção de Gateway SMS Mário Freire Paulo Bacelar Reis Pedreiras End Date 12/2011 12/2011 12/2011 Detection of Encrypted 12/2011 Traffic Generated by Peer-toAndré Esteves Peer Live Streaming Applications Using Deep Packet Inspection Filipe Miguel Teixeira 12/2011 Distributed Control of a Ricardo Rodrigues Pereira da Silva Robotic Arm Pedro Amado Assunção Nuno Gomes Paulo Bacelar Reis Pedreiras Jorge Azevedo Alexandre Moutela Nunes da Mot António Nogueira Diogo Gomes de Pinho Silva Loureiro Paulo Salvador Ferreira Rui Manuel Rocha João Gonçalves Rui Manuel Rocha, Susana Sargento José Albino Carvalho da Silva Miguel Tavares Coimbra Daniel Pereira Ricardo Correia Sérgio Faria Hugo Parreiras Rui Manuel Fonseca Pinto Fernando Lopes Júlio Silva Inácio Fonseca Fernando Lopes Bruno Carmo Luís Cruz Fernando Lopes Adriano Campos Inácio Fonseca Fernando Lopes António Bonifácio Inácio Fonseca Gestão eficiente da fila DCCP 12/2011 em fontes de vídeo 3D baseada em informações cross-layer Linux-based real-time control 12/2011 system 12/2011 Monitoring Support based on NETCONF PowerEmb - Power Aware 12/2011 System for Small Embedded Systems Proposta 3GPP de 12/2011 Indicadores de Desenpenho de Rede – R4 CS Core Network Unobtrusive Collection and 12/2011 Annotating of Auscultations in Real Hospital Environments Sistema de registo do controlo autonómico da variabilidade cardíaca Building Automation and Control – Central Management of a Hotel Building and its Effects in the Building Energy Performance DVB-T Transmission for Inbuilding MATV, SMATV and CATV Project and Implementation of a Linux-based Real-Time Embedded System Technical Process Optimizations in Paper Machines 1/2012 2/2012 2/2012 2/2012 2/2012 David Piñeiro Rui Pedro de Magalhães Lopez Claro Prior TCP com Network Coding Rui Manuel Rocha Over Board - Expansion Module for Actuation on WSN 5/2012 devices Sérgio Teixeira 4/2012 240 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Manuel Nunes Farinha Correia Rego Julio Silva Miguel Sales Dias Nadir Türkman Pedro Miguel dos Santos Alves Madeira Adão Maria Ana Casal Cunha Isabel da Piedade Xavier Machado Alexandre Raquel Feitor Rui Jorge Henriques Calado Lopes Paulo Nunes Paulo Nunes André Rodrigues David José Cabaço Mendes David Miguel Fernandes 3D Holoscopic Video Segmentation A system for interaction with FVP based systems: design, implementation and test Ambiente 3D Web para simulação de condições de iluminação Arquitectura de rede para sessões personalizadas de conteúdos multicast Luís André Romão Henriques Frutuoso Gomes Mendes da Silva Ricardo Jorge de Jesus Rodrigues Pesqueira Susana Sargento Bruno Figueiredo Hugo Pedro Martins Carriço Proença Rui Raposo Fernando Pereira Vasco Nascimento João Ascenso Paulo Nunes Hugo Miguel Campelo Luís Ducla Soares Rodrigues Almeida Luís Cruz Tiago Simões Gonçalves Paulo Nunes Luís Morgado Susana Sargento Jorge Filipe Dias Susana Sargento Joao Gilberto Reigota Afonso Agostinho Ferreira da Silva Usability in an immersive virtual reality system End Date 5/2012 6/2012 6/2012 6/2012 6/2012 Verification of Cryptographic Protocols using First Order 6/2012 Logics Using IEEE802.21 Media Independent Handover tools 7/2012 for enhancing QoE support in IMS networks 7/2012 2D-to-3D Video Conversion Nina Mortazavi Rui Jorge Henriques Calado Lopes Paulo Nunes Title Phone Sensing Smartphone-based application for distributed sensing in human networks Integration and Support for João Carlos Serrenho Automatic Generation of Test Dias Pereira Cases using AnyTestes Framework Project Management in the TI sector in Portugal - Agile Methodology vs Traditional Approach Security and Privacy in Ricardo Jorge Identification and MicroFernandes Chaves Payment Systems Rui Manuel Rocha Pedro Miguel dos Santos Alves Madeira Adão Isabel da Piedade Xavier Machado Alexandre Pedro Miguel dos Santos Alves Madeira Adão Co- Supervisors Biometric Ear Recognition 7/2012 7/2012 7/2012 7/2012 7/2012 Bit-depth scalable distributed 7/2012 video coding 7/2012 Coding and Processing of 3D Holoscopic Video Computable subjective 7/2012 measures for evaluation of 3D video quality Computer Generated 3D 7/2012 Holoscopic Video Comunicação Em Larga7/2012 Arnaldo Silva Escala Em Redes Veiculares: Rodrigues de Oliveira Desempenho Ana Cristina Costa Aguiar Comunicação Em Larga7/2012 Escala Em Redes Veiculares: Distribuição De Conteúdos Depth Estimation and Image 7/2012 Rendering for 3D and Freeviewpoint Video Applications 241 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Gabriel Falcão Paiva Fernandes Marco Martins Luís Cruz Fernando Morais Frutuoso Gomes Mendes da Silva Co- Supervisors Isabel Figueiredo Pedro Nuno Matos Pereira Paulo Nunes João Pedro Ascenso Rodrigues Susana Sargento Bruno Miguel Sendas Parreira Susana Sargento Hugo Pires Daniel Enrique Lucani Roetter Filipe Gomes Jorge Carapinha Pedro Miguel Naia Neves,Francisco Fontes Bruno Alexandre André Zúquete Aguiar da Fonseca Ricardo Antunes Marco Alexandre Cravo Vitor Manuel Mendes de Azevedo da Gomes Silva Veiga Ferrão Maria Paula Queluz Rui Almeida António Nogueira Luís Tiago Ferreira Paulo Salvador Figueiredo Jacinto Ferreira Paulo Bacelar Reis Pedreiras Luis Tavares José A. Fonseca Paulo Bacelar Reis Pedreiras Luis Nobrega Pedro Alexandre Gonçalves António Nogueira Hugo Diogo Antunes Lopes Fonseca Paulo Salvador Ferreira Maria Paula Queluz Miguel Chin Tomás Brandão,António Rodrigues Maria Paula Prata de Sousa João Daniel Raposo Pereira Joel José Puga Coelho Rodrigues Jorge Manuel Frazão Costa Joel José Puga Coelho Rodrigues Paula Freire Joel José Puga Coelho Rodrigues Tiago Miguel Carrola Simões Endoscopic Image Segmentation using Parallel Computing on GPUs with CUDA Explorarions of Video Tracking in Video Sensor Networks Ferramenta visual para a criação de jogos 3D Susana Sargento Fausto José Canhoto de Diana Carneiro Paiva Vieira Title Tomás Brandão João Francisco Cordeiro de Oliveira Barros End Date 7/2012 7/2012 7/2012 Generation of 2D and 3D 7/2012 High Resolution Images from a 3D Holoscopic Representation Integração Da Cloud Com 7/2012 Rede Na Perspectiva De Operador 7/2012 Integração de LTE em redes de acesso heterogéneas Load Balancing in Multi-Beam 7/2012 Satellites Mobilidade Distribuída Em 7/2012 Ambientes Dinâmicos 7/2012 Modulação de Magnitude em Plataformas de Vírgula Fixa Objective Video Quality 7/2012 Assessment in IPTV Networks Statistical characterization of 7/2012 machine-to-machine traffic Supervision and Management 7/2012 System for Mobile Industrial Load Transportation Equipment Suporte MSRP para HardQoS 7/2012 switch, 7/2012 Tracking of wireless users for modeling user behavior Video Quality Evaluation in IP Networks 7/2012 Virtual Images Management 7/2012 Service for Cloud Infrastructures Monitorização dos Sinais Vitais de Condutores para 8/2012 Caracterização de Stress e Fadiga no Trânsito Urbano A New Multilayer Approach for E-Learning Platforms 8/2012 Mobile platform-independent solutions for integration to an 8/2012 electronic health record New Concepts Integration on E-Learning Platforms 8/2012 242 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Co- Supervisors Title End Date Sérgio Faria Luís Cachulo Joel José Puga Coelho Rodrigues Bruno Filipe Aguiar Durães Silva Joel José Puga Coelho Rodrigues Eduardo Jorge Fernandes Silveira Roque Sistema de informação em tempo real para paragens de 8/2012 autocarro Towards a Network Management Solution for 8/2012 Vehicular Delay-Tolerant Networks Wireless Sensor Network Solution for Personal and 8/2012 Environmental Monitoring Rui Cardoso A story in the museum II Isabel da Piedade Xavier Machado Alexandre Isabel da Piedade Xavier Machado Alexandre Collaborative 9/2012 Recommendation System for Mobile devices Desenvolvimento de método 9/2012 alternativo à bengala para orientação de pessoas invisuais Developing cubes for 9/2012 evaluating the profitability of projects in Information Systems 9/2012 Quinta da Regaleira in the palm of your hand Paulo Alexandre Pinto Albuquerque Pedro Brandão Cátia Silva Isabel da Piedade Xavier Machado Alexandre Guilherme João Cavaco Esperança da Silva Isabel da Piedade Xavier Machado Alexandre Luís Pedro Robalo Simões de Lemos Pedro Brandão Paulo Vilares Sérgio Faria Igor Silva Telmo Fernandes João Pedro Afonso Oliveira da Silva Marco António Moura Rebelo Nuno Miguel de Figueiredo Garrido Sérgio Faria Fábio Sousa Pedro Amado Assunção João Carreira Rui Miguel Neto Marinheiro Rui Valdemar Pereira Madaleno Isabel da Piedade Xavier Machado Alexandre Nelson Manuel Catarino Mendes Paulo Lobato Correia Filipe Manuel de Valsassina Serra Sérgio Faria Paulo Lobato Correia Paulo Lobato Correia Paulo Lobato Correia João Fernandes Afonso Salvador Marques Nuno Alexandre Freire Moço Sanchit Sincronização em redes de sensores no corpo Humano Sistema de leitura RFID de longa distância Sistema de monitorização de consumos de energia eléctrica Sistema Electrónico para Monitorização Ambiental Transmissão de televisão 3D com a norma DVB Um modelo de apoio à decisão de adopção de Software as a Service aplicado à actividade económica “Financeira e seguros” Virtual Post Office Miguel Tavares Coimbra Nuno Silva Maria Paula Queluz 9/2012 Tomás Brandão Luís Ducla Soares Luís Ducla Soares Airport Environment Simulator Audio processing for digital stethoscopes used in real clinical environments Automatic detection and counting of stork nests in electric power lines Automatic Road Pavement Crack Detection using SVM Biometric Recognition based on a Smartphone Biometric Recognition based on Latent Palmprints 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 9/2012 10/2012 10/2012 10/2012 10/2012 10/2012 10/2012 243 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Co- Supervisors Title Pedro Miguel dos Santos Alves Madeira Adão Adelino Portela João Sobrinho André Bento Sérgio Faria Mário Reis Paulo Lobato Correia César Alexandre Ferreira Luís João Ascenso António Borga Client-cloud storage of audiovisual data João Ascenso José Moreira Error control schemes for IPTV multicast João Ascenso Divyesh Virchande Rui Manuel Rocha João André H. Ferreira Rui Manuel Rocha Bruno Coelho Rui Manuel Rocha Eduardo Bettencourt Miguel Tavares Coimbra António Sousa Maria Paula Prata de Sousa Rui Manuel Ferreira da Cunha João Sobrinho João Alves Verónica Costa Teixeira Tiago Fernandes Pinto Orvalho Verónica Costa Teixeira Jose Serra Pinto Orvalho Verónica Costa Teixeira Pedro Nogueira Pinto Orvalho Verónica Costa Teixeira Ozan cetinaslan Pinto Orvalho End Date 10/2012 Geração Automática de Casos de Teste na Ferramenta AnyTester MPLS in enterprise networks 10/2012 Telmo Fernandes SAVA - Sistema de informação para veículos automóveis Segmentation of 3D Holoscopic Video 10/2012 10/2012 11/2012 11/2012 HTTP based video streaming 11/2012 Moisés Simões Piedade ISTNanosat-1 - Heart Processing and Digital Communications unit 11/2012 LA6 - Local Aggregation in the Internet of Things 11/2012 Sense Companion 11/2012 Controlling home sensors with smartphone Sistemas Interactivos para 11/2012 Gastrenterologia State Management in Online 12/2012 Games Route aggregation 10/2013 Realtime 3D Scene Previsualization with Mobile Devices Intelligent Facial Animation: Creating emphatic characters with stimuli based animation Emotional Regulation: A means for more immersive applications Simulation of Deformable Solid and Rigid Bodies on Facial Models 10/2014 12/2015 12/2015 12/2015 Table 24 - List of MSc. Theses running in the Networks and Multimedia Area During 2011 244 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA PhD Theses Supervisor Mário Figueiredo Student Marta Belchior Lopes Co- Supervisors José Bioucas Dias Luis Filipe André Souto Coelho Antunes Luis Miguel Pina Coelho Teixeira António Luis Lopes Botelho Fernando Catarina Isabel Pereira Carvalheiro Brites Danillo Bracco Sérgio Faria Graziosi Maria Paula Tomás Brandão Queluz João Francisco Gerhard Cordeiro de Maierbacher Oliveira Barros Paulo Bacelar Reis Pedreiras Rui Gabriel Viegas dos Santos João Francisco Cordeiro de Oliveira Barros João Paulo Vilela Carlos Sá da Costa José Bioucas Dias João Francisco Cordeiro de Oliveira Barros Elsa Alexandra Cabral da Rocha Cardoso Marian-Daniel Iordache Marcel Calvacanti Fernando Perdigão Carla Calado Lopes Luis Filipe Andreia Sofia Coelho Antunes Teixeira Miguel Tavares Coimbra Joel José Puga Coelho Rodrigues End Date Advances in near-infrared hyperspectral image analysis for pharmaceutical anti- 2/2011 counterfeiting Individual Information Measures: Applications to Computational 3/2011 Complexity Distributed Coordination in Unstructured 3/2011 Intelligent Agent Societies Exploiting Correlation Noise Modeling in 3/2011 Wyner-Ziv Video Coding Eduardo Antônio da Codificação de imagens utilizando o 4/2011 Silva algoritmo MMP No-reference image and video quality 5/2011 assessment Coding Strategies for Sensor Networks: Clustering, Compression and Network 7/2011 Coding Luis Miguel Pinho de Enhanced Ethernet Switching Almeida,Paulo Bacelar Technology for Adaptive Hard Real-Time 7/2011 Reis Pedreiras Applications Jamming for Wireless Secrecy Stijn Viaene,Carlos Sá Performance Management of Higher da Costa Education Degrees Antonio Plaza Paulo Falcão Oliveira Susana Sargento Title Andreas J. Kassler,Susana Sargento 7/2011 Sparse Unmixing Approach to Spectral Unmixing 10/2011 Coding Strategies for Secret Key Distribution, Storage and Anonymity 12/2011 Enabling Multimedia Services over Wireless Mesh Networks 12/2011 Automatic processing techniques for speech recognition Armando Matos 7/2011 Characterization of cryptographic primitives based on Kolmogorov Complexity 1/2012 1/2012 Fahran Riaz Computer Assisted Analysis of NarrowBand Imaging Endoscopy Exams 2/2012 Vasco Nuno da Gama de Jesus Soares Performance Assessment of Vehicular Delay Tolerant Networks 2/2012 Susana Sargento Pedro Neves Susana Sargento Luís Barreto Miguel Raul Dias João Oliveira Rodrigues José Bioucas Miguel Almeida Dias Francisco Fonte Acesso Sem Fios de Banda Larga em Ambientes de Redes Heterogéneas de Próxima Geração Controlo de Congestionamento em Redes sem Fios Design and Optimisation of DWDM Millimetre-Wave Fibre-Radio Systems Source Separation of Phase-Locked Ricardo Nuno Vigário Signals Henrique Salgado 3/2012 3/2012 3/2012 3/2012 245 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Luis Filipe Andreia Teixeira Coelho Antunes Ana Fred João Duarte Mário Freire João Vasco Paulo Gomes Mário Freire Filipe Cruz Gomes Soares João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros Rui L. Aguiar Rui L. Aguiar Sérgio Crisóstomo Co- Supervisors Armando Matos Title Análise de Segurança de Primitivas Criptográficas com base na Teoria de Informação Algoritmica Data Clustering using Constraints Paulo Monteiro End Date 4/2012 4/2012 Detection and Limitation of Peer-to-Peer Traffic in Information Networks 6/2012 Generalization of the Embedded Branch Process for Automatic Detection of 6/2012 Breast Cancer , Rui A. Costa Alfredo Miguel Melo Susana Sargento Matos Vitor Manuel Jesus Silva Diogo Nuno Pereira Gomes João Miguel Gonçalves Diogo Nuno Pereira Gomes,Rui L. Aguiar Verónica Costa Teixeira Pinto Orvalho Fernando Perdigão Susana Sargento Susana Sargento Susana Sargento Susana Sargento Luis Miguel Pina Coelho Teixeira Botelho João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros José Carlos Guedes dos Prazeres A. Augusto Sousa Miranda Arlindo Oliveira da Luís Sá Veiga Evariste Logota Ricardo Matos Information Dissemination in Random Networks 6/2012 One-shot Capacity of Memoryless Channels 6/2012 Privacidade em Redes Heterogéneas de 6/2012 Próxima Geração Service Provisioning in Dense Network 6/2012 Operator Scenarios Integrated Identity and Context Management Architecture for Privacy7/ 2012 Enabled Context-Awareness Intuitive Real Time Facial Interaction And Animation Automatic speech and speaker segmentation and labelling Context-Aware Control Design For Multicast-Aware Networks 7/2012 9/2012 9/2012 Context-based Wireless Mesh Networks 9/2012 Nuno Coutinho Sérgio Pires Márcio Melo Jorge Carapinha Integração Transparente de Redes Heterogéneas Virtualização de Redes numa Perspectiva de Operador 9/2012 9/2012 Paulo Costa Learning Action Control Rules through Observation of Software Agent Bodies 10/2012 Mate Boban Capacity Bounds for Communication Networks 11/2012 Pedro Santos Coding for Networks-on-Chip 11/2012 Luis Pinto Cyber -physical systems for Smart Buildings 11/2012 Rui Meireles Peter Steenkiste Density-Based Routing in Vehicular Ad11/2012 hoc Networks Nuno Miguel Morais Rodrigues Nelson Carreira Francisco Eduardo Antônio da Silva Efficient Image And Video Compression 11/2012 Using Multiscale Recurrent Patterns João Francisco Cordeiro de Oliveira Barros Hana Khamfroush Geographical Network Coding 11/2012 246 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros João Francisco Cordeiro de Oliveira Barros Pedro Amado Assunção Student Co- Supervisors End Date Joao Almeida Joint protection and data compression 11/2012 Susana Bulas Cruz Network Coding for Sensor Networks 11/2012 Diogo Ferreira Network Coding Protocols for Video Streaming 11/2012 Maricica Nistor Network Coding Delay 11/2012 Saurabh Shintre Physical-Layer Security in Large-Scale Networks 11/2012 Sylvain Marcelino Salviano Soares,Sérgio Faria Adaptation and Quality Optimization in Future 3D Video Delivery Services Advanced Multiple Description Coding Vitor Manuel Mendes for Video Silva Pedro Amado Assunção Pedro Correia Pedro Amado Assunção Filipe dos Santos Neves Ana Fred André Lourenço Mário Figueiredo David Pereira Coutinho Paulo Bacelar Reis Pedreiras António Luís Ferreira Luis Miguel Pinho de Marques Almeida Ana Fred Helena Aidos Salviano Soares Paulo Lobato Correia Henrique José Monteiro Oliveira Ana Fred Hugo Humberto Placido da Silva Algoritmos de Reconstrução de Sinal e Aplicações Gil Melfe Mateus santos Negative Object recognition Miguel Almeida Orlando Remédios Lino Ferreira Luís Cruz Vitor Mirones Victor Marques 12/2012 12/2012 12/2012 Automatic Document Organization using 12/2012 Semi-Structured Information Data retrieval and classification using 12/2012 information distances Developing Safety Critical Applications based on the Flexible Time-Triggered 12/2012 Paradigm Dissimilarity Increments Statistics and Dimensionality Reduction in Unsupervised Learning Hybrid generative/discriminative supervised learning Image Processing for Supervision and Management Support of Road Infrastructures Multi-Modal Modeling of Cognition and Emotion Mário Figueiredo Artur Ferreira Hugo Pedro Martins Carriço Proença Susana Sargento Pedro Amado Assunção Susana Sargento Miguel Tavares Coimbra João Francisco Cordeiro de Oliveira Barros Title Performance evaluation in next generation networks Scalable Video Coding with embedded new features 12/2012 12/2012 12/2012 12/2012 12/2012 12/2012 12/2012 Self in-network resource management 12/2012 Fabio Headyioglu DigiScope - DIGItally enhanced stethoSCOPE for clinical usage 1/2013 Alexandre Ligo Public Policies for Intelligent Transportation Systems 1/2013 Miguel Tavares Coimbra Pedro Gomes Miguel Tavares Coimbra Paulo Alves Body signal analysis for monitoring fatigue in first responders 3/2013 Event Detection for Capsule Endoscopy 3/2013 Video Exams 247 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Co- Supervisors Miguel Raul Dias Munnujahan Ara Rodrigues Title Information-Theoretic Security 1 End Date 6/2013 Mário Freire Ângela Cristina Marques de Oliveira Mário Freire Carlos David Magalhães Queiroz Autonomic Quantification and Classification of the Breast Tissue 7/2013 Classification in 2D Ultrassound Images Towards Autonomic Detection of 7/2013 Encrypted Peer-to-Peer Traffic João Manuel Pires Leitão Caldeira Integration of Intra-Body Sensors in Wireless Sensor Networks Joel José Puga Coelho Rodrigues Joel José Puga Coelho Rodrigues Luis Miguel Lopes de Amaro Sousa Oliveira Susana Sargento João Soares Pedro Miguel Naia Neves Susana Sargento Lucas Guardalben Paulo Salvador Ferreira Susana Sargento Frank Kanesel Pedro Miguel Naia Neves João Sobrinho Tiago Quelhas Susana Sargento Susana Sargento Rui Jorge Henriques Calado Lopes Maria Manuela Areias da Costa Pereira de Sousa Susana Sargento Verónica Costa Teixeira Pinto Orvalho André Cardote Peter Steenkiste André Reis O. K. Tonguz Converged Mobile Communications in Multiple Integrated Networks Correctness of network protocols 9/2013 9/2013 9/2013 9/2013 Geo-optimized and cross-layer transport 9/2013 communications Optimizing Vehicular Communications 9/2013 through Hybrid Networks Organizational Crisis Preparedness and Response in a Networked World: 9/2013 Marco Bernardo Qualidade subjectiva e objectiva de imagens e vídeos, incluindo o caso 3D 9/2013 Tiago Condeixa User-Centric Mobility with Quality of Experience Handover Optimization 9/2013 Bruno Miguel Ferreira de Oliveira An interactive facial muscle system for CG Films and videogames 10/2013 Social Optimal Routing enabled through Vehicular Networks 10/2013 João Manuel Dias de Almeida QoE measurements with Agents cooperation on Personal Cells Nuno Miguel Monteiro Barbosa Auto-rigging applied to markless MoCap 12/2013 Miguel Raul Dias Samah Mustafa Rodrigues Verónica Costa Teixeira Pinto Orvalho Communication between nodes and domains in self-management networks 8/2013 José Luís P.A. Vale Matos Michel Celestino Pedro Miranda de Cristina Olaverri Paiva Ferreira Albuquerque d'Orey Rui Miguel Neto Marinheiro Verónica Costa Teixeira Pinto Orvalho Performance Assessment of Routing Protocols in IPv6 Over Wireless Sensor Mesh Networks Communication Architecture for Mobile Cloud Services 8/2013 Teresa de Jesus Batista Vieira Miguel Raul Dias Ke Zhang Rodrigues Miguel Raul Dias Vinay Prabhu Rodrigues Adão Silva Connections between Information Theory and Estimation Theory and Applications to Wireless Communications Facial Skin Shading Parameterization System For Real-Time Rendering Of Emotions 11/2013 12/2013 12/2013 Information-Theoretic Security 2 12/2013 Information-Theoretic Security 3 12/2013 248 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Title End Date Pedro Aguiar Kernel based methods for text retrieval 12/2013 and semantic desambiguation José Luís Pereira R. Rossetti Simulation of Intelligent Transportation 12/2013 Systems Rui Pedro Monteiro Amaro Duarte Abel João Gomes Geometric Representation and Animation of Natural Phenomena Mário Figueiredo André T. Martins João Francisco Cordeiro de Oliveira Barros Abel João Gomes Co- Supervisors 1/2014 Abel João Gomes Sérgio Emanuel Duarte Dias Geometric Representation and 1/2014 Recognition Methods in Protein Docking Abel João Gomes Rui Sérgio Viegas Rodrigues Segmentação de Malhas Geométricas Miguel Tavares Coimbra Can Ye Biomedical Signal Processing for Critical Infrastructures 3/2014 Efficient resource management of heterogeneous, small dimension and geographically dispersed cloud computing systems Rui Miguel Neto Rui Jorge Ferreira Marinheiro Esteves Rui Manuel Rocha Luís Ducla Soares João Francisco Cordeiro de Oliveira Barros Joel José Puga Coelho Rodrigues Verónica Costa Teixeira Pinto Orvalho 1/2014 4/2014 Flexible and Adaptive Architecture for Wireless Multimedia Sensor Networks 6/2014 3D Holoscopic Video Coding 7/2014 Joao Guilherme Pereira Rodrigues Information Gathering in Intelligent Transportation Systems 7/2014 Bruno Miguel Correia da Silva Performance Evaluation of Cooperation Mechanisms for Mobile Health Applications 8/2014 Realtime 3D Scene Pre-visualization with Mobile Devices 9/2014 José Catela Moisés Simões Piedade Caroline Conti Paulo Nunes Tiago Pinto Fernandes A. Augusto Sousa Assessing Complexity of Physiological Signals Luis Filipe Teresa Sarmento Coelho Antunes Henriques Luís A. Alexandre Sílvio Brás Filipe Verónica Costa Teixeira Pinto Orvalho Mónica Maria da Costa Madeira Queirós de Oliveira Michel Celestino Pedro Gomes Paiva Ferreira Verónica Costa Teixeira Pinto Orvalho Luís Miguel Barbosa da Costa Leite Sérgio Faria Luis Filipe Rosário Lucas Verónica Costa Teixeira Pinto Orvalho Pedro Tavares Barata Bastos Sérgio Faria Diego Felix Souza Development of a biologically plausible visual saliency algorithm and its implementation on GPGPU architecture Verónica Costa Interactive Technology for Emotion Teixeira Pinto Orvalho Recognition Cristina Olaverri Nuno Miguel Morais Rodrigues,Sérgio Faria Fernando Pereira,Sérgio Faria 9/2014 9/2014 9/2014 Next-Generation Driver Information Systems 9/2014 Virtual puppets 9/2014 Disparity compensation using Least Squares 10/2014 Easy Facial Constraints: A Dynamic Industry Standard 10/2014 Multiview Video Disparity Compensation using Geometric Transforms 10/2014 249 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Supervisor Student Co- Supervisors Miguel Raul Dias Hugo Reboredo Rodrigues Maria Manuela Areias da Costa Ângelo Arrifano Pereira de Sousa End Date Title Filter Design with Secrecy Constraints 11/2014 Multiple Description Coding with Side Information optimized for Wireless Sensors 11/2014 Gabriel Falcão João Maria Duarte Paiva Fernandes Andrade Parallel LDPC Decoding over GF(q) for Heterogeneous and Homogeneous Architectures 11/2014 Hugo Pedro Chandrashekhar Martins Carriço Padolle Proença Periocular biometric recognition at visible wavelength 11/2014 Gabriel Falcão Rui Jorge Melo Paiva Fernandes Teixeira Real-Time Urban 3D Modeling by Combining Stereo from Symmetry with 11/2014 General Purpose Programming in the Graphics Processing Unit (GPGPU Luís Henrique Martins Borges de Almeida António Nogueira Luís Cruz Vitor Manuel Mendes Silva Paulo Salvador Ferreira António Nogueira Miguel Antunes Dias Alfaiate Simões Blind Image Deblurring, Blind Image Deblurring Tiago Miguel Amaral Paulo Salvador de Sousa Ferreira Guilherme Riberio Corrêa Characterization and Modeling of M2M Traffic Complexity Control of HEVC Video Coders and Decoders Memory-Aware Parallel LDPC Decoding over GF(q) for Homogeneous and Heterogeneous Multicore Architectures Methodologies for Network Entities Profiling Modeling and Analysis of Network Resilience: the Security Perspective Parallelization techniques for H.264/AVC and newer standards Architectural and Networking Aspects of Sensing Applications on Vehicular Networks João Maria Duarte Andrade Gabriel Falcão Paiva Fernandes João Rodrigues Antonio Neves Nuno Gonçalves Rodrigues Paulo Salvador Ferreira Luís Cruz Thaísa Leal da Silva Ana Cristina Costa Aguiar Mohammad Nozari Carlos Manuel Costa Lourenço Caleiro Luis Miguel Pinho de Almeida Fernando Pereira Daniel Enrique Lucani Roetter Fernando Pereira Andreia Mordido Logic in Security Communications and Middleware for Cooperating Heterogeneous and Autonomous Mobile Robots Combined predictive-distributed video coding 12/2014 12/2014 12/2014 12/2014 12/2014 12/2014 12/2014 1/2015 1/2015 Luis Filipe Nunes Quaresma de Oliveira Pedro Lima Hoang Van Xiem João Ascenso Hugo Moreira de Sousa Pinto Peter Steenkiste Congestion Control for Future Internet 7/2015 Diego Felix Souza Sérgio Faria Efficient video coding based on geometric transforms 7/2015 3/2015 7/2015 Table 25 - List of PhD Theses running in the Networks and Multimedia Area During 2011 250 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA 4.3.6 Publications Architectures And Protocols Book Chapters - Coutinho, N.; S. Sargento; " Context-Aware Delivery of Multi-Party Communications: Access and Core Network Selection " - Chapter in Wireless MultiAccess Environments and Quality of Service Provisioning: Solutions and Application , Ramona Trestian , IGI global, Medical Information Science Reference ,2011 . - Almeida, M. A.; S. Sargento; " Coupling Activity and Performance Management with Mobility in Vehicular Networks " - Chapter in Vehicular Technologies , 978-9537619-241-8 , In-Tech, 2011 . - Pedreiras, PP; SV Vitturi; SS Schoenegger; LS Seno; " Ethernet Powelink " Chapter in The Industrial Electronics Handbook , Bodgan Wilamowski, J. David Irwin , CRC Press, 2011 . - Sargento, S.; R. Matos; K. H. Hummel; A. H. Hess; H. d. M. de Meer; " MultiAccess Communications in Wireless Mesh Networks by Virtualization " - Chapter in Wireless Multi-Access Environments and Quality of Service Provisioning: Solutions and Application , Ramona Trestian , IGI global, Medical Information Science Reference, 2011 . Papers in Journals - Mendes, L. M.; J. R. Rodrigues; " A Survey on Cross-layer Solutions for Wireless Sensor Networks ", Journal of Network and Computer Applications , Vol. 34 , No. 2 , pp. 523 - 534 , March , 2011 . - Felizardo, V. F.; P. D. G. Gaspar; V. R. Reis; N. M. Garcia; " Aquisition of multiple physiological parameters during physical exercise ", Intrnl. Journal of E-Health and Medical Communications (IJEHMC) , Vol. 2 , No. 4 , pp. 37 - 49 , October , 2011 . - Neves, P.; J. Soares; S. Sargento; H. P. Pires; F. Fontes; " Context-aware Media Independent Information Server for Optimized Seamless Handover Procedures ", Computer Networks , Vol. 55 , No. 7 , pp. 1498 - 1519 , May , 2011 . - Shu, L. S.; J. L. Lloret; J. R. Rodrigues; M. Chen; " Distributed intelligence and data fusion for sensor systems ", IET Communications , Vol. 5 , No. 12 , pp. 1633 1636 , August , 2011 . - Coutinho, N.; T. Condeixa; S. Sargento; A. Neto; " Energy Efficiency as Input for Context-aware Group- based Communications ", Vol. 1 , No. 6 , pp. 329 - 353 , April , 2011 . - Soares, J. M.; M. Franceschinis; R. M. Rocha; W. Zhang; M. A. Spirito; " Opportunistic Data Collection in Sparse Wireless Sensor Networks ", EURASIP 251 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Journal on Wireless Communications and Networking , Vol. 2011 , No. 401802 , January , 2011 . - Oliveira, L.oliveira; A. F. Sousa; J. R. Rodrigues; " Routing and Mobility Approaches in IPv6 over LoWPAN Mesh Networks ", Intrnl. Journal of Communication Systems (IJCS) , Vol. 24 , No. 11 , pp. 1445 - 1466 , November , 2011 . - Natkaniec, M.N.; J. Gozdecki; S. Sargento; " Supporting QoS in Integrated AdHoc Networks ", Wireless Personal Communications , Vol. 56 , No. 2 , pp. 183 - 191 , October , 2011 . - Sousa, Paula Prata; P. Fazendeiro; P. Sequeira; " Towards Cost-Effective BioInspired Optimization: a Prospective Study on the GPU Architecture ", Lectures Notes in Computer Science , Vol. II , No. 7077 , pp. 63 - 70 , December , 2011 . Papers in Conference Proceedings - MArques, A. M.; V.V. Vasconcelos; PP Pedreiras; L. Almeida; " A Flexible dashboard panel for a small electric vehicle ", Proc Iberian Conf. on Information Systems and Technologies - CISTI , Chaves , Portugal , pp. 1 - 4 , June , 2011 . - Sifalakis, S.; S. Martin; C. Tschudin; L. S. Ferreira; L. M. Correia; " A Generic Service Interface for Cloud Networks ", Proc International Conf. on Cloud Computing and Services Science - CLOSER , Noordwijkerhoud , Netherlands , May , 2011 . - Crocker, P.; VN Nicolau; " A Secure Architecture for Electronic Ticketing Based On the Portuguese e-ID Card ", Proc European Conf. on Information Warfare and Security - ECIW , Talin , Estonia , Vol. 10 , pp. 38 - 50 , July , 2011 . - Behnam, MB; PP Pedreiras; " Analysis and optimization of the MTU in real-time communications over Switched Ethernet ", Proc IEEE International Conf. on Emerging Technologies and Factory Automation - ETFA , Tolouse , France , pp. 1 - 7 , September , 2011 . - Silvestre-Blanes, J; PP Pedreiras; R Marau ; " Bandwidth mapping algorithms in distributed media control applications ", Proc IEEE International Conf. on Emerging Technologies and Factory Automation - ETFA , Tolouse , France , pp. 1 - 8 , September , 2011 . - Cederquist, J.; " Complexity of Fairness Constraints for the Dolev-Yao Attacker Model ", Proc ACM Symp. on Appl. Computing , Taichung , Taiwan , Vol. 26 , pp. 1507 - 1514 , March , 2011 . - Santos, R. S.; PP Pedreiras; MB Behnam; TN Nolte; L. Almeida; " Demonstrating an Ethernet Switch Enhanced With Hierarchical Scheduling ", Proc Workshop on Adaptive and Reconfigurable Embedded Systems - APRES , Chicago , United States , April , 2011 . 252 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Santos, R. S.; PP Pedreiras; MB Behnam; TN Nolte; L. Almeida; " Demonstrating an Ethernet Switch Enhanced With Hierarchical Scheduling ", Proc IEEE Real-Time Systems Symp. - RTSS , Vienna , Austria , November , 2011. - Kumar, Navin; Domingos Terra; L. Alves; R. L. Aguiar; " Design, Development and Performance Analysis of DSSS-based Transceiver for VLC ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Roggia, K.; PP Pedreiras; L. Almeida; R. R. Rajkumar; " Efficient Elastic Resource Management for Dynamic Embedded System ", Proc IEEE International Conf. on Embedded Software and Systems - ICESS , Changsha , China , November , 2011 . - Sequeira, P.; Paula Prata Sousa; P. Fazendeiro; " Genetic algorithms over GPUs: a preliminary assessment ", Proc International Conf. on Engineering UBI - ICEUBI , Covilhã , Portugal , Vol. 1 , pp. 1 - 10 , November , 2011 . - Knaesel, F.J.; P. Neves; S. Sargento; " IEEE 802.21 MIH-enabled Evolved Packet System Architecture ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , Aveiro , Portugal , September , 2011 . - Cunguara, MC; TOS Silva; PP Pedreiras; " Loosely Coupled Architecture Network Control Systems ", Proc IEEE International Conference on Industrial Informatics INDIN , Lisbon , Portugal , pp. 137 - 141 , July , 2011 . - Cunguara, MC; TOS Silva; PP Pedreiras; " Loosely Coupled Architecture Network Control Systems ", Proc IEEE International Conference on Industrial Informatics INDIN , Lisbon , Portugal , pp. 137 - 141 , July , 2011 . - Santos, R. S.; MB Behnam; TN Nolte; PP Pedreiras; L. Almeida; " Multi-level Hierarchical Scheduling in Ethernet Switches ", Proc IEEE International Conf. on Embedded Software and Systems - ICESS , Taipe , Taiwan , pp. 185 - 194 , October , 2011 . - Agüero, R.; C. Caeiro; L. M. Correia; L. S. Ferreira; L Suciu; A. Timm-Giel; " OConS: Towards Open Connectivity Services in the Future Internet ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , Aveiro , Portugal , September , 2011 . - Dias, H. D.; R. N. Marinheiro; " Peer-to-Peer Collaboration in Content Delivery Networks ", Proc IEEE International Conf. on Information Networking - ICOIN , Kuala Lumpur , Malaysia , Vol. 1 , pp. 1 - 1 , January , 2011 . - Borges, Luis M.; F. J. Velez; S. Lebres; " Performance Evaluation of the Schedule Channel Polling MAC Protocol applied to Health Monitoring in the Context of IEEE 802.15.4 ", Proc European Wireless - EW , Vienna , Austria , April , 2011 . - Lucas da Silva, M.; C. Simões; H. Silva; F. Botelho; " Rapid Application Development Using Web Technologies: An Application to Communicative Competence Promotion of Children with ASD ", Proc INSTICC International Conf. on Health Informatics - Healthinf , Rome , Italy , January , 2011 . 253 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Dashti, M.T.; J. Cederquist; Y. W. Wang; " Risk Balance in Optimistic Nonrepudiation Protocols ", Proc Formal Aspects of Security and Trust , Leuven , Belgium , Vol. 7140 , pp. 263 - 277 , September , 2011 . - Mathews, N. M.; A. Christensen; R. O. O´Grady; M. B. Bonani; F. M. Mondada; M. D. Dorigo; " Self-Assembly based on Active Recruitment and Guidance ", Proc IEEE/RSJ International Conf. on Intelligent Robots and Systems , San Francisco , United States , Vol. 1 , pp. 4762 - 4769 , September , 2011 . - Sousa, Paula Prata; J. Muranho ; " Sparse Matrix-Vector Multiplication on GPU: When Is Rows Reordering Worthwhile? ", Proc International Conf. on Engineering UBI - ICEUBI , Covilhã , Portugal , Vol. 1 , pp. 1 - 10 , November , 2011 . - Quelhas, T.; J. L. S. Sobrinho; " Towards a Better Understanding of DistanceVector Routing Protocols with Reset on Failures ", Proc IASTED International Conf. on Parallel and Distributed Computing and Networks - PDCN , Innsbruck , Austria , February , 2011 . - MArques, A. M.; V.V. Vasconcelos; PP Pedreiras; L. Almeida; " Towards Efficient Transient Fault Handling in Time-Triggered Systems ", Proc Inforum - Simpósio de Informática , Coimbra , Portugal , September , 2011 . - Olaverri , C.; C. Draxler Draxler; K. Bengler; " Variable Menus for the Local Adaptation of Graphical User Interfaces: An Implementation Approach ", Proc Conf. Ibérica de Sistemas e Tecnologias de Informação - CISTI , Chaves , Portugal , pp. 1 - 1 , June , 2011 . - Barreto, L.; S. Sargento; " XCP-Winf and RCP-Winf: Congestion Control Techniques For Wireless Mesh Networks ", Proc IEEE International Conf. on Communications - ICC , kyoto , Japan , pp. 1 - 6 , July , 2011 . Project Reports - Suciu, L; L. S. Ferreira; C. Caeiro; L. M. Correia; et. al.; " Architectural Concepts of Connectivity Services ", European Commission , FP7-ICT-2009-5-257448 , July , 2011 . COMPUTER GRAPHICS Books - Bastos, P.B; Produção 3D com Blender de Personagens Bípedes , FCA - Editora de Informática, Lda. , Lisboa , 2011 . Book Chapters - Miranda, J.M; T. Fernandes; V. Orvalho; " Interactive Technology: Teaching People with Autism to Recognize Facial Emotions " - Chapter in Autism / Book 1 , InTech , In-Tech , 2011 . 254 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Orvalho, V.; T. Fernandes; J.C. Miranda; " Teaching People with Autism to Recognize Facial Emotions " - Chapter in Autism Spectrum Disorders - From Genes to Environment , Tim Williams , In-Tech , 2011 . Papers in Journals - Fernandes , G. Falcão; J. Andrade; V. Silva; L. Sousa; " GPU-based DVB-S2 LDPC decoder with high throughput and fast error floor detection ", Electronics Letters , Vol. 47 , No. 9 , pp. 542 - 543 , April , 2011 . - Dias, S.; A. Gomes; " Graphics processing unit-based triangulations of Blinn molecular surfaces ", Concurrency and Computation: Practice and Experience , Vol. 23 , No. 17 , pp. 2280 - 2291 , December , 2011 . Papers in Conference Proceedings - Leite, L.; V. Orvalho; " AnimActor: Understanding Interaction with Digital Puppetry using Low-Cost Motion Capture ", Proc International Conf. on Advances in Computer Entertainment Technology - ACE , Lisbon , Portugal , Vol. 8 , November , 2011 . - Silva, L. F. A. S.; F. S. Silva; " Augmented Reality for Web - A new interaction method without markers ", Proc Ibero-American Symp. in Computer Graphics , Faro , Portugal , Vol. 1 , pp. 183 - 188 , June , 2011 . - Abirached, B. A.; J. Aggarwal; B. T. Tamersoy; Y. Zhang; T. Fernandes; J.M Miranda; V. Orvalho; " Improving Communication Skills of Children with ASDs through Interaction with Virtual Characters ", Proc IEEE International Conf. on Serious Games and Applications for Health - SEGAH , Braga , Portugal , Vol. 1 , pp. 1 - 1 , November , 2011 . - Deus, T. F.; T. Marques; P. Alexandre; PFL Lopes; I. Alexandre; " Learn English With Inspector Flops ", Proc VideoJogos - VJ , Porto , Portugal , December , 2011 . - Fernandes, T.; S. A. Alves; J.M Miranda; C. Q. Queirós; V. Orvalho; " LIFEisGAME: An approach to the utilization of serious games for therapy for children with ASD ", Proc Conference on Enterprise Information System - International Workshop on Health and Social Care Information Systems and Technologies - CENTERIS HCIst 2011 , Porto , Portugal , Vol. 1 , pp. 1 - 1 , October , 2011 . - Lopes, PFL; DJ Jardim; I. Alexandre; " Math4Kids ", Proc First Iberian Workshop on Serious Games and Meaningful Play - SGaMePlay , Chaves , Portugal , June , 2011 . - Barbosa, A. F. S. B.; F. S. Silva; " Oxyblood - A serious game in WebGL ", Proc First Iberian Workshop on Serious Games and Meaningful Play - SGaMePlay , Chaves , Portugal , Vol. 1 , pp. 221 - 224 , June , 2011 . - Fernandes , G. Falcão; J. Andrade; V. Silva; L. Sousa; " REAL-TIME DVB-S2 LDPC DECODING ON MANY-CORE GPU ACCELERATORS ", Proc IEEE International Conf. 255 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA on Acoustics, Speech, and Signal Processing - ICASSP , Prague , Czech Republic , May , 2011 . - Barbosa, A. F. S. B.; F. S. Silva; " Serious Games - Design and Development of OxyBlood ", Proc International Conf. on Advances in Computer Entertainment Technology - ACE , Lisbon , Portugal , November , 2011 . - Miranda, J.C.; X. Alvarez; D. G. Gutierrez; A.A.S Sousa; V. Orvalho; " Sketch Express: Facial Expressions Made Easy ", Proc SBIM EUROGRAPHICS Symp. on Sketch-Based Interfaces and Modeling (SBIM) , Vancouver , Canada , August , 2011 . NETWORK APPLICATIONS AND SERVICES Books - Bloch, M.Bloch; J. Barros; Physical-Layer Security: From Information Theory to Security Engineering , , Cambridge University Press , Cambridge, UK , 2011 . Book Chapters - Rodrigues, J. ; A. N. Nogueira; P. Salvador; " Classifying Users Profiles and Content in a Content-Zapping IPTV Service " - Chapter in Advances in Next Generation Services and Service Architectures , A. Prasad, J. Buford, V. Gurbani , River Publishers, 2011 . Fonseca, Jo. A. Fonseca; E. Marta; " Controller Area Network " - Chapter in The Industrial Electronics Handbook – Industrial Communication Systems , B. M. Wilamowski and J. David Irwin , CRC Press , 2011 . - Ferreira, A.; R. Correia; D. Chadwick; L. Antunes; " Password Sharing and How to Reduce it " - Chapter in Certification and Security in HealthRelated Web Applications Concepts and Solutions. , Anargyros Chryssanthou, Ioannis Apostolakis and Iraklis Varlamis , IGI global, Medical Information Science Reference , 2011 . - Denko, M.; J. R. Rodrigues; B. Vaidya; J. J. Jugmohan; " Pervasive Healthcare Systems and Applications " - Chapter in Pervasive Healthcare Technologies and Application , M. Denko and M. Obaidat , John Wiley & Sons , 2011 . - Lo Bello, L. L.B.; J. Fonseca; W. E. Elmenreich; " Real-Time Systems " - Chapter in The Industrial Electronics Handbook – Industrial Communication Systems , Bogdan M. Wilamowski and J. David Irwin , CRC Press , 2011 . - Han, G. H.; L. S. Shu; W. S. Shen; C. Z. Zhu; J. R. Rodrigues; " RNST: Precise Localization Based on Trilateration for Indoor Sensor Networksin Advancements " Chapter in Distributed Computing and Internet Technologies: Trends and Issues , Al-Sakib Khan Pathan, Mukaddim Pathan, and Hae Young Lee , Idea-Group Inc. , Hershey , 2011 . 256 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Papers in Journals - Matos, R.; C . M. M. Marques; S. Sargento; K. H. Hummel; " Analytical Modeling of Context-Based Multi-Virtual Wireless Mesh Networks ", Ad Hoc , January , 2011 . - Rodrigues, J. R.; O. P. Pereira; P. N. Neves; " Biofeedback Data Visualization for Body Sensor Networks ", Journal of Network and Computer Applications , Vol. 34 , No. 1 , pp. 151 - 158 , January , 2011 . - Pereira, O. P.; JC Caldeira; J. R. Rodrigues; " Body Sensor Network Mobile Solutions for Biofeedback Monitoring ", Mobile Networks and Applications , Vol. 16 , No. 6 , pp. 713 - 732 , December , 2011 . - Neves, P. N.; J. R. Rodrigues; K. L. Lin; " Data Fusion on Wireless Sensor and Actuator Networks Powered by the ZenSens System ", IET Communications , Vol. 5 , No. 12 , pp. 1661 - 1668 , August , 2011 . - Lin, K. L.; J. R. Rodrigues; H. G. Ge; N. X. Xiong; X. L. Liang; " Energy Efficiency QoS Assurance Routing in Wireless Multimedia Sensor Networks ", IEEE Systems , Vol. 5 , No. 4 , pp. 495 - 505 , December , 2011 . - Moraes, R. M.; F. B. C. Carreiro; P. Bartolomeu Bartolomeu; J. Fonseca; F. V. Vasques; " Enforcing the timing behavior of real-time stations in legacy bus-based industrial Ethernet networks ", Computer Standards and Interfaces , Vol. 33 , No. 3 , pp. 249 - 261 , March , 2011 . - Rodrigues, J. R.; F. S. Sabino; L. Z. Zhou; " Enhancing e-Learning Experience with Online Social Networks ", IET Communications , Vol. 5 , No. 8 , pp. 1147 1154 , May , 2011 . - Vinhoza, T. T. V.; M. Ferreira; J. Barros; O. Tonguz; " Impact of Vehicles as Obstacles in Vehicular Ad Hoc Networks ", IEEE Journal of Selected Areas in Comunications , Vol. 29 , No. 1 , pp. 7 - 20 , January , 2011 . - Nogueira, A. N.; J. Rodrigues; P. Salvador; J. R. Rodrigues; " IPTV Service based on a Content-Zapping Paradigm ", Multimedia Systems , Vol. 17 , No. 4 , pp. 351 364 , May , 2011 . - Aguiar, A.; " Leveraging Electronic Ticketing to Provide Personalised Navigation in a Public Transport Network ", IEEE Trans. on Intelligent Transportation Systems , No. 99 , pp. 1 - 9 , October , 2011 . - Nistor, M.; D. E. Lucani; T. T. V. Vinhoza; R.C. Costa; J. Barros; " On the Delay Distribution of Random Linear Network Coding ", IEEE Journal on Selected Areas in Communications , Vol. -29 , No. -5 , pp. -1084 -1093 , May , 2011 . - Almeida, L.; J Silvestre-Blanes; PP Pedreiras; " On-line QoS Management for Multimedia Real-Time Transmission in Industrial Networks ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 3 , pp. 1061 - 1071 , March , 2011 . 257 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Vaidya, B.; J. P. Park; S. Y. Yeo; " Robust One-time Password Authentication Scheme using Smart Card for Home Network Environment ", Computer Communications Journal , Vol. 34 , No. 3 , pp. 326 - 336 , March , 2011 . - Vaidya, B.; J. P. Park; S. Y. Yeo; J. R. Rodrigues; " Robust One-time Password Authentication Scheme using Smart Card for Home Network Environment ", Computer Communications Journal , Vol. 34 , No. 3 , pp. 326 - 336 , March , 2011 . - Nascimento, J.; P. Mateus; " Statistical Model for a Quantum Noiseless Subsystem ", Optics Communications , Vol. 45 , No. 3 , pp. 11 - 23 , January , 2011 . - Neves, P. N.; A. F. F. E. Esteves; R. M. F. C. Cunha; J. R. Rodrigues; " UserCentric Data Gathering Multi-Channel System for IPv6-enabled Wireless Sensor Networks ", Intrnl. Journal of Sensor Networks , Vol. 9 , No. 1 , pp. 13 - 23 , February , 2011 . - Neves, P. N.; A. E. Elias; A. F. F. E. Esteves; J. R. Rodrigues; " ZenSens Improving Sensor and Actuator Networks User Experience with iPhone Support ", Ad Hoc ,February , 2011 . Papers in Conference Proceedings - Rodrigues, J.; A. Aguiar; F. V. Vieira; J. Barros; J. P. C. Silva Cunha; " A Mobile Sensing Architecture for Massive Urban Scanning ", Proc IEEE Conf. on Intelligent Transportation Systems , Washington D.C. , United States , Vol. 6 , pp. 1 - 6 , October , 2011 . - Nogueira, A. N.; E. Rocha; P. Salvador; " A Multi-Variate Classification Approach for the Detection of Illicit Traffic ", Proc IEEE International Conf. on Software, Telecommunications and Computer Networks - SoftCOM , Hvar , Croatia , September , 2011 . - Matos, JM; A. Cardote; S. Sargento; " An IEEE 802.11p/WAVE Implementation with Synchronous Channel Switching for Seamless Dual-channel Access ", Proc IEEE Vehicular Networking Conf. (VNC) , Amsterdam , Netherlands , Vol. 1 , pp. 1 - 1 , November , 2011 . - Eduardo, E.R.; R.J. Lopes; " Assessing the integration of ontology tools in content network architectures ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Adão, P.; E. Sixpence Sixpence; C. Smith Smith; " Automatização de Casos de Teste como Processo de Melhoria da Qualidade do Software: O caso da Aplicação eLearning ISUPAC3 no ISUTC ", Proc Congresso Luso Moçambicano de Engenharia CLME , Maputo , Mozambique , September , 2011 . - Nogueira, A. N.; E. Rocha; P. Salvador; " Classification of hidden users profiles in wireless communications ", Proc International ICST Conf. on Mobile Networks and Management , Aveiro , Portugal , September , 2011 . 258 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - " Classification of hidden users' profiles in wireless communications ", Proc International ICST Conf. on Mobile Networks and Management , Aveiro , Portugal , September , 2011 . - Matos, R.; C . M. M. Marques; S. Sargento; " Context-Based Connectivity in Wireless Mesh Networks: Analytical vs Simulation Studies ", Proc Conf. on Telecommunications - ConfTele , Lisboa , Portugal , April , 2011 . - Matthew , G.; J. Rodriguez; " Cross-Layer Approach in P2PSIP MANETs ", Proc IEEE Consumer Communications and Networking Conf. - CCNC , Las Vegas , United States , January , 2011 . - Nogueira, A. N.; E. Rocha; P. Salvador; " Detection of Illicit Network Activities based on Multivariate Gaussian Fitting of Multi-scale Traffic Characteristics ", Proc IEEE International Conf. on Communications - ICC , Kyoto , Japan , June , 2011 . - Matos, R.; S. Sargento; " Distributed Control and Management of Context-Based Wireless Mesh Networks ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , aveiro , Portugal , September , 2011 . - Gomes, P.; C. Olaverri ; M. Ferreira; L.D. Damas; " Driver-Centric VANET Simulation ", Proc Nets4Cars 2011 , Wessling-Oberpfaffenhofen , Germany , March , 2011 . - Ferreira, L.F.; L. A Cruz; P.A. Assunção; " Efficient Scalable Coding of Video Summaries using Dynamic GOP Structures ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Khamfroush, H.; D. E. Lucani; J. Barros; " GeoCode: A Geographic Coding-Aware Communication Protocol ", Proc IEEE Conf. on Intelligent Transportation Systems , Washington DC , United States , Vol. 1 , pp. 1 - 6 , October , 2011 . - Nogueira, A. N.; E. Rocha; P. Salvador; J. R. Rodrigues; " Identification of Anomalies on Encrypted Communications based on Multi-Scale Behavior Modeling ", Proc International Congress on Ultra Modern Telecommunications and Control Systems , Budapest , Hungary , October , 2011 . - Fernandes, T.; " Indoor Localization Using Bluetooth ", Proc FEUP Doctoral Symp. on Informatics Engineering - DSIE , Porto , Portugal , January , 2011 . - Abrudan, T.; L. M. Paula; J. Barros; J. P. C. Silva Cunha; N.B.C. Carvalho; " Indoor location estimation and tracking in wireless sensor networks using a dual frequency approach ", Proc IEEE International Conf. on Indoor Positioning and Indoor Navigation - IPIN 2011 , Guimarães , Portugal , September , 2011 . - Brás, L.; N.B.C. Carvalho; P.T. Pinho; " Indoor/Outdoor Management System Compliant with Google Maps and Android® OS ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , pp. 1 - 4 , April , 2011 . 259 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Vilela, J. V.; Pedro Pinto Pinto; J. Barros; " Jammer Selection Policies for Secure Wireless Networks ", Proc IEEE International Conf. on Communications - ICC , kyoto , Japan , June , 2011 . - Nogueira, A. N.; P. Salvador; " Joint Modeling of Heterogeneous Networks for QoS Prediction ", Proc World Conf. on Information Technology - WCIT , Antalya , Turkey , November , 2011 . - Nogueira, A. N.; P. Salvador; " Joint Modeling of Heterogeneous Networks for QoS Prediction ", Proc International Conf. on Telecommunication Systems, Modeling and Analysis - ICTSM , Prague , Czech Republic , May , 2011 . - Brás, L.; N.B.C. Carvalho; P.T. Pinho; " Location System applied in Management of Emergency Scenarios ", Proc ETH Zurich 10 International Conf. on Indoor Positioning and Indoor Navigation - IPIN , Guimaraes , Portugal , pp. 1 - 4 , September , 2011 . - Robalo, D.R.; F. J. Velez; " Model for the Correlation between Quality of Service and Experience in Cognitive Radio Networks ", Proc International Symp. on Applied Sciences in Biomedical and Communication Technologies - ISABEL , Barcelona , Spain , October , 2011 . - Nogueira, A. N.; P. Salvador; " Modeling Framework for M2M Traffic ", Proc World Conf. on Information Technology - WCIT , Antalya , Turkey , November , 2011 . - Nogueira, A. N.; J. Rodrigues; P. Salvador; " Multimedia Content Aggregator applied to an IPTV Content-Zapping Service ", Proc Conf. on Telecommunications ConfTele , Lisbon , Portugal , April , 2011 . - Phulpin, Y. P. ; J. Barros; D. E. Lucani; " Network Coding in Smart Grids ", Proc IEEE International Conf. on Smart Grid Communications - SmartGridComm , Brussels , Belgium , October , 2011 . - , ; A. Aguiar; ; " OLBS: Offline Location Based Services ", Proc IEEE International Conf. on Next Generation Mobile Applications, Services, and Technologies NGMAST , Cardiff , United Kingdom , Vol. 1 , pp. 1 - 1 , September , 2011 . - Barroso, D. M.; R. M. Rocha; " Service Augmented Resource Description Architecture ", Proc Conf. Nacional de Redes de Sensores - CNRS , Coimbra , Portugal , pp. 71 - 75 , March , 2011 . - Costa, FP; R. M. Rocha; " SIN – Service-based Interconnected Networks ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , Aveiro , Portugal , September , 2011 . - Fonseca, I.; C.C. Coelho; F. Lopes; " Sistema de Informação Integrado para a Gestão de Cursos de Especialização Tecnológica ", Proc Conf. Ibérica de Sistemas e Tecnologias de Informação - CISTI , Chaves , Portugal , Vol. I , pp. 1 - 4 , June , 2011 . 260 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Nogueira, A. N.; E. Rocha; P. Salvador; " Statistical Characterization of Botnets ", Proc World Conf. on Information Technology - WCIT , Antalya , Turkey , November , 2011 . - Fernandes, T.; J. J. Jacob; " Virtual Location-Based Indoor Guide ", Proc IST International Conf. on Serious Games Development and Applications - SGDA , Lisbon , Portugal , September , 2011 . - Shi, X. S. ; M. M. Médard; D. E. Lucani; " When Both Transmitting and Receiving Energies Matter: An Application of Network Coding in Wireless Body Area Networks ", Proc IFIP Networking 2011: Workshop on Network Coding Applications and Protocols - NC-Pro , Valencia , Spain , May , 2011 . NETWORK OPERATIONS, MANAGEMENT AND PLANNING Book Chapters - Grazioso, P.; F. Guerra; " Deployment of Next Generation Cellular Networks " Chapter in Pervasive Mobile & Ambient Wireless Communications (COST 2100) , Roberto Verdone , River Publishers , Aalborg, Denmark , 2011 . Papers in Journals - Marques, R.; E. A. Araújo; A. Zúquete; " Fast 802.11 handovers with 802.1X reauthentications ", Security and Communication Networks , Vol. 4 , No. 3 , pp. 267 - 283 , March , 2011 . - Morais, R.M.; C. Pavan; A. N. Pinto; C. Agra; " Genetic Algorithm for the Topological Design of Survivable Optical Transport Networks ", IEEE/OSA Journal of Optical Communications and Networking , Vol. 3 , No. 1 , pp. 17 - 26 , January , 2011 . - Mateiro, JM; S. Sargento; A. Neto; N. Coutinho; N. F. Ferreira; " Mobility of Sources and Listeners: Real-Time Support of Multicast Services ", Telecommunication Systems , Vol. 48 , No. 1 , pp. 185 - 202 , October , 2011 . Papers in Conference Proceedings - Nascimento, A.N.; R. Sofia Sofia; T. Condeixa; S. Sargento; " A Characterization of Mobility Management in User-centric Networks ", Proc IEEE International Conf. on Next Generation Wired/Wireless Networking - NEW2AN , St. Petersburg , Russia , Vol. 11th , August , 2011 . - Melo, M.; J. Carapinha; S. Sargento; " A Platform for Operator-Driven Network Virtualization ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , April , 2011 . - Lucani, D. E.; M. M. Médard; " Bridging Tree-Packing and Network Coding: An Information Flow Approach ", Proc Conf. on Information Sciences and Systems CISS , Baltimore, MD , United States , March , 2011 . 261 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Soares, J.; J. Carapinha; M. Melo; S. Sargento; " Building Virtual Private Clouds with Network aware Cloud ", Proc IARIA International Conf. on Advanced Engineering Computing and Applications in Sciences - ADVCOMP , Lisbon , Portugal , November , 2011 . - Cruz, S.; G. Maierbacher ; J. Barros; " Joint Source-Network Coding for LargeScale Sensor Networks ", Proc IEEE International Symp. on Information Theory ISIT , Saint Petersburg , Russia , August , 2011 . - Figueira, A. R. C. F.; J. V. Gomes; M. Sousa; M. Freire; P.R.M. Inácio ; " Mechanism and Daemon for Identification of Worms in Attacking Zombies ", Proc Conf. sobre Redes de Computadores - CRC , Coimbra , Portugal , Vol. 11 , pp. 0 - 9 , November , 2011 . - Soares, L. F. B. Soares; D. A. B. F. Fernandes; J. V. Gomes; M. Sousa; M. Freire; P.R.M. Inácio ; " NetOdyssey: A Flexible Tool for Real-Time Statistical Analysis of Network Traffic Flows ", Proc Conf. sobre Redes de Computadores - CRC , Coimbra , Portugal , Vol. 11 , pp. 0 - 9 , November , 2011 . - Soares, L. F. B. Soares; D. A. B. F. Fernandes; J. V. Gomes; M. Sousa; M. Freire; " NetOdyssey: A Flexible Tool for Real-Time Statistical Analysis of Network Traffic Flows ", Proc Conf. sobre Redes de Computadores - CRC , Coimbra , Portugal , Vol. 11 , November , 2011 . - Melo, M.; J. Carapinha; S. Sargento; " Network Virtualization System Suite: Experimental Network Virtualization Platform ", Proc International Conf. on Testbeds and Research Infrastructures for the development of Networks and Communities , Shanghai , China , April , 2011 . - Guardalben, L.G; António. P Pinho; P. Salvador; S. Sargento; " Nodes Discovery in the In-Network Management Communication Framework ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , Aveiro , Portugal , Vol. 3 , pp. 1 - 14 , September , 2011 . - Correia, L. M.; J. M. Venes; " Performance of a Heterogeneous Network with UMTS, Wi-Fi and WiMAX ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Santiago, CS; BG Gangopadhyay; J. M. Pedro; " Planning a Urban Radio over Fibre Network ", Proc IEEE Region 8 EUROCON 2011 International Conference on Computer as a Tool joint with the Conference on Telecommunications , Lisboa , Portugal , April , 2011 . - Nascimento, A.N.; R. Sofia Sofia; T. Condeixa; S. Sargento; R. Matos; " Usercentric Mobility Management ", Proc Terena Networking Conf. , Prague , Czech Republic , May , 2011 . - Melo, M.; J. Carapinha; S. Sargento; L. Torres; N. Tran-Phuong Tran-Phuong; U. Killat Killat; A. Timm-Giel; " Virtual Network Mapping - An Optimization Problem ", Proc ICST Conf. on Mobile Networks and Management (MONAMI) , Aveiro , Portugal , September , 2011 . 262 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Melo, M.; J. Carapinha; S. Sargento; " Virtual Network Mapping into Heterogeneous Substrate Networks ", Proc IEEE Symp. on Computers and Communications (ISCC) , Kerkyra , Greece , July , 2011 . NETWORK PERFORMANCE EVALUATION AND DESIGN Book Chapters - Ferreira, J.; Jo. A. Fonseca Fonseca; " Controller Area Network " - Chapter in Industrial Electronics Handbook , Bodgan Wilamowski and J. David Irwin , CRC Press, 2011 . - Soares, V. S.; J. R. Rodrigues; " Cooperation in DTN-Based Network Architectures " - Chapter in Cooperative Networking , M. S. Obaidat and S. Misra , John Wiley & Sons, 2011 . - Oliveira, R. O.; A. Garrido; M. Luís; R. Pasquini; L. B. Bernardo; R. Dinis; " Performance Analysis of XOR-Based Routing Protocols In Vehicular ad hoc Networks " - Chapter in Internet Policies and Issues. Volume 8 , B.G. Kutais , Nova Publisher, 2011 . - Rodrigues, J. R.; V. S. Soares; F. F. Farahmand; " Stationary Relay Nodes Deployment on Vehicular Opportunistic Networks " - Chapter in Mobile Opportunistic Networks: Architectures, Protocols and Applications , Mieso K. Denko , CRC Press , Boca Raton , 2011 . Papers in Journals - Ahlgren, B.; P. Aranda; P. Chemouil; L. M. Correia; H. Karl; S. Oueslati; M. Söllner; A. Welin; " Content, Connectivity, and Cloud: Ingredients for the Network of the Future ", IEEE Communications Magazine , Vol. 49 , No. 7 , pp. 62 - 70 , July , 2011 . - Farahmand, F. F. ; I. C. Cerutti; A. P. Patel; J. J. Jue; J. R. Rodrigues; " Performance of Vehicular Delay-Tolerant Networks with Relay Nodes ", Wireless Communications & Mobile Computing , Vol. 11 , No. 7 , pp. 929 - 938 , July , 2011 . - Vaidya, B.; M. Denko; J. R. Rodrigues; " Security Mechanism for Voice over Multipath Mobile Ad-hoc Networks ", Wireless Communications & Mobile Computing , Vol. 11 , No. 2 , pp. 196 - 210 , February , 2011 . - Soares, V. S.; F. F. Farahmand; J. R. Rodrigues; " Traffic Differentiation Support in Vehicular Delay-Tolerant Networks ", Telecommunication Systems , Vol. 48 , No. 1-2 , pp. 151 - 162 , September , 2011 . Papers in Conference Proceedings - Luís, M.; R. O. Oliveira; L. B. Bernardo; R. Dinis; " A Reliable Broadcast and Unicast MAC Protocol for ad hoc Networks ", Proc IEEE Vehicular Technology Conf. VTC-Spring , Budapest , Hungary , Vol. 1 , pp. 000 - 001 , May , 2011 . 263 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Gomes, N.; P. Loureiro; P.A. Assunção; " Algoritmo de gestão da fila DCCP para melhorar a QoE de vídeo 3D baseado em informações de cross-layer ", Proc Conf. sobre Redes de Computadores - CRC , Coimbra , Portugal , Vol. 1 , pp. 1 - 6 , November , 2011 . - Capela, N.; J. Soares; P. Neves; S. Sargento; " An Architecture for Optimized Inter-Technology Handovers: Experimental Study ", Proc IEEE International Conf. on Communications - ICC , Kyoto , Japan , Vol. 6 , pp. 1 - 6 , June , 2011 . - Oliveira, R. O.; L. B. Bernardo; M. Luís; " Analysis of Heuristic-based MAC protocols for ad hoc Networks ", Proc IEEE Wireless Communications and Networking Conf. - WCNC , Cancun , Mexico , Vol. 1 , pp. 191 - 196 , March , 2011. - Silva, H.S.; S. Oliveira; A. Christensen; " Conillon: A Lightweight Distributed Computing Platform for Desktop Grids ", Proc Iberian Conf. on Information Systems and Technologies - CISTI , Chaves , Portugal , Vol. 1 , pp. 1 - 6 , June , 2011 . - Zarmehri, M.; A. Aguiar; " Data Gathering for Sensing Applications in Vehicular Networks ", Proc IEEE Vehicular Networking Conference - VNC , Amsterdam , Netherlands , Vol. 2011 , pp. 139 - 146 , November , 2011 . - Ferreira, D.; J. Barros; " Efficient Erasure Recovery Protocols for Real-time Applications over Wireless Networks ", Proc MAP-TELE Workshop - MAP-TELE , Averiro , Portugal , May , 2011 . - Lucani, D. E.; J. K. Kliewer; " Energy-Delay Considerations in Coded Packet Flows ", Proc IEEE International Symp. on Information Theory - ISIT , Saint Petersburg , Russia , pp. 859 - 863 , July , 2011 . - Morais, R.M.; C. Pavan; R. F. Rocha; A. N. Pinto; " Estimating Extra Capacity for Dedicated Protection in Mesh Optical Transport Networks ", Proc European Conf. on Networks and Optical Communications and Conf. on Optical Cabling and Infrastructure - NOC/OC , Newcastle , United Kingdom , July , 2011 . - Morais, R.M.; C. Pavan; A. N. Pinto; " Estimating the Energy Consumption in Survivable Optical Transport Networks ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Luís, M.; R. O. Oliveira; L. B. Bernardo; R. Dinis; " Maximizing ThroughputFairness Tradeoff in MAC for ad hoc Networks ", Proc IEEE Wireless Communications and Networking Conf. - WCNC , Cancun , Mexico , Vol. 1 , pp. 357 - 362 , March , 2011 . - Reis, A.B.; S. Sargento; O. Tonguz; " On the Performance of Sparse Vehicular Networks with Road Side Units ", Proc IEEE Vehicular Technology Conf. - VTCSpring , Budapest , Hungary , pp. 1 - 5 , May , 2011 . - Ganhão, F.; M.P. Pereira; L. B. Bernardo; R. Dinis; R. O. Oliveira; P. Pinto; " Performance of Hybrid ARQ for Network Diversity Multiple Access Schemes ", Proc International Conf. on Computer Communications , Maui , United States , July , 2011 . 264 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Prior, R.P.; A. Rodrigues; " Systematic Network Coding for Packet Loss Concealment in Broadcast Distribution ", Proc IEEE International Conf. on Information Networking - ICOIN , Kuala-Lumpur , Malaysia , January , 2011 . - Oliveira, R. O.; A. Garrido; R. Pasquini; M. Luís; L. B. Bernardo; R. Dinis; P. Pinto; " Towards the use of XOR-based Routing Protocols in Vehicular ad hoc Networks ", Proc IEEE Vehicular Technology Conf. - VTC-Spring , Budapest , Hungary , Vol. 1 , pp. 000 - 001 , May , 2011 . PATTERN RECOGNITION AND AUTOMATIC LEARNING Books - Pinto, R.; Biomedical Engineering: Trends in electronics, communications and software , , In-Tech , Croatia , 2011 . Book Chapters - Lourenço, A.; A. L. N. Fred; M. A. T. Figueiredo; " A Generative Dyadic Aspect Model for Evidence Accumulation Clustering " - Chapter in SIMBAD 2011 , M. Pelillo and E.R. Hancock , Springer , 2011 . - Aidos, H.; A. L. N. Fred; " A Study of Embedding Methods under the Evidence Accumulation Framework " - Chapter in SIMBAD 2011 , M. Pelillo and E.R. Hancock , Springer, 2011 . - Nascimento, J. M. P.; J. Dias; " Signal Subspace Identification in Hyperspecral Imagery " - Chapter in Signal and Image Processing for Remote Sensing , C.H. Chen , CRC Press, 2011 . Papers in Journals - Gorgulho, A. Gorgulho; R. Neves; N.H. Horta; " Applying a GA kernel on optimizing technical analysis rules for stock picking and portfolio composition ", Expert Systems with Applications , Vol. 38 , No. 11 , pp. 14072 - 14085 , October , 2011 . - Borges, J.; J. Dias; A. Marçal; " Bayesian hyperspectral image segmentation with discriminative class learning ", IEEE Trans. on Geoscience and Remote Sensing , Vol. 49 , No. 6 , pp. 2151 - 2164 , January , 2011 . - Tomás, R.; A. Lourenço; H. Silva; V. Lee; S. Going; " Effects of Whole-Body Vibration on Vastus Lateralis Activation During Isometric and Dynamic Squatting ", Journal of Rehabilitation Medicine , No. 49 , pp. 139 - 140 , July , 2011 . - Proença, H.; G. Santos Santos; " Fusing Color and Shape Descriptors in the Recognition of Degraded Iris Images Acquired at Visible Wavelength ", Computer Vision and Image Understanding , Vol. 116 , pp. 167 - 178 , November , 2011 . 265 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Nascimento, J. M. P.; J. Dias; " Hyperspectral Unmixing based on Mixtures of Dirichlet Components ", IEEE Trans. on Geoscience and Remote Sensing , December , 2011 . - Proença, H.; D. Yang; " Introduction to the Special Issue On Unconstrained Biometrics: Advances and Trends ", Signal, Image and Video Processing Journal , Vol. 5 , No. 3 , pp. 1 - 2 , September , 2011 . - Almeida, M.S.C.; L.B. Almeida ; " Nonlinear separation of show-through image mixtures using a physical model trained with ICA ", Signal Processing , November , 2011 . - Proença, H.; " Quality Assessment of Degraded Iris Images Acquired in the Visible Wavelength ", IEEE Trans. on Information Forensics and Security , Vol. 6 , No. 1 , pp. 82 - 95 , March , 2011 . - Almeida, M.; J.-H. Schleimer; R. V. Vigário; J. Dias; " Source Separation and Clustering of Phase-Locked Subspaces ", IEEE Trans. on Neural networks , Vol. 22 , No. 9 , pp. 1419 - 1434 , September , 2011 . - Iordache , M.; J. Dias; A. Plaza; " Sparse unmixing of hyperspectral data ", IEEE Trans. on Geoscience and Remote Sensing , Vol. 49 , No. 2 , pp. 2014 - 2039 , June , 2011 . - Li, J.; J. Dias; A. Plaza; " Spectral-spatial hyperspectral image segmentation using subspace multinomial logistic regression and Markov random fields (in press) ", IEEE Trans. on Geoscience and Remote Sensing , Vol. 1 , No. 1 , pp. 1 - 15 , August , 2011 . - Lourenço, A.; H. Silva; A. L. N. Fred; " Unveiling the Biometric Potential of FingerBased ECG Signals ", Vol. 2011 , June , 2011 . Papers in Conference Proceedings - Marques, P.; A. Ferreira; S. P. Sampaio; " A pedagogical passive RADAR using DVB-S signals ", Proc IEEE, KIEES Asia-Pacific International Conference on Synthetic Aperture Radar - APSAR , Seoul , Korea, South , Vol. CD-ROM ,September , 2011 . - Martins, A.; M. A. T. Figueiredo; P. Aguiar; N. A. Smith; E. P. Xing; " An Augmented Lagrangian Approach to Constrained MAP Inference ", Proc International Conf. on Machine Learning - ICML , Bellevue, WA , United States , Vol. , pp. 169 - 176 , June , 2011 . - Amaro, P.A.; V.V. Vasconcelos; I. Fonseca; F. Lopes; " An Educational Application using High Level Industrial Machine Vision Software ", Proc Portuguese Conf. on Pattern Recognition - RecPad , Porto , Portugal , Vol. I , pp. 1 - 2 , October , 2011 . - Oliveira, S.; L. Nunes; A. Christensen; " An Experiment in Mixing Evolving and Preprogrammed Robots ", Proc European Conf. on Artificial Life , Paris , France , Vol. 1 , pp. 605 - 612 , August , 2011 . 266 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Dias, J.; A. Plaza; " An overview on hyperspectral unmixing: geometrical, statistical, and sparse regression based approaches ", Proc IEEE International Geoscience and Remote Sensing Symp.- IGARSS , Vancouver , Canada , July , 2011. - Riaz, F.; M. Coimbra; M. Dinis-Ribeiro Ribeiro; F. Baldaque Silva Silva; " Classification of Gastroenterology images using Gabor filters ", Proc Portuguese Conf. on Pattern Recognition - RecPad , Porto , Portugal , October , 2011 . - Silva, H.; A. Lourenço; A. L. N. Fred; JBF Filipe; " Clinical Data Privacy and Customization via Biometrics Based on ECG Signals ", Proc Information Quality in eHealth - USAB , Graz , Austria , November , 2011 . - Marques, N.; E. Dias; J. P. C. Silva Cunha; M. Coimbra; " Compressed Domain Topographic Classification for Capsule Endoscopy ", Proc International Conf. of the IEEE Engineering in Medicine and Biology Society - EMBC , Boston , United States , , September , 2011 . - Can, Y.; J. Pallauf Pallauf; B.V.K. Vijaya Kumar Bhagavatula; M. Coimbra; " Customizing Training Dataset for Improved Heartbeat Recognition Performance in Long-Term ECG Signal Analysis ", Proc International Conf. of the IEEE Engineering in Medicine and Biology Society - EMBC , Boston , United States , Vol. 1 , pp. 1 - 4 , August , 2011 . - Antão, DPC; A. L. N. Fred; M. A. T. Figueiredo; " ECG-Based Continuous Authentication System Using Adaptive String Matching ", Proc International Conf. on Bio-inspired Systems and Signal Processing - Biosignals - INSTICC , Rome , Italy , January , 2011 . - Ferreira, A.; M. A. T. Figueiredo; " Efficient Unsupervised Feature Selection for Sparse Data ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011. - Ferreira, A.; M. A. T. Figueiredo; " Feature Discretization and Selection in Microarray Data ", Proc International Conf. on Knowledge Discovery and Information Retrieval - KDIR , Paris , France , Vol. 1 , pp. 465 - 469 , October , 2011 . - Ferreira, A.; M. A. T. Figueiredo; " Feature Selection and Discretization for Microarray and Other Biological Data ", Proc Inforum - Simpósio de Informática , Coimbra , Portugal , Vol. 1 , pp. 60 - 65 , September , 2011 . - Pereira, J. N.; R. Neves; N.H. Horta; " Fitness Function Evaluation for MA Trading Strategies based on Genetic Algorithms ", Proc Genetic and Evolutionary Computation Conf. - GECCO , Dublin , Ireland , July , 2011 . - Riaz, F.; M. Areia; F. Baldaque Silva Silva; M. Dinis-Ribeiro; P. Pimentel; M. Coimbra; " Gabor textons for classification of gastroenterology images ", Proc IEEE International Symp. on Biomedical Imaging , Chicago , United States , April , 2011 . 267 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Veiga, A.; S. Candeias; F. Perdigão; " Generating a Pronunciation Dictionary for European Portuguese Using a Joint-Sequence Model with Embedded Stress Assignment ", Proc Braz Comput Soc Brazilian Symposium in Information and Human Language Technology - STIL , Cuiabá, Mato Grosso , Brazil , pp. 144 - 153 , October , 2011 . - Aidos, H.; A. L. N. Fred; " Hierarchical Clustering with High Order Dissimilarities ", Proc International Conf. on Machine Learning and Data Mining - MLDM , New York , United States , August , 2011 . - Jardim, DJ; S. Oliveira; L. Nunes; " Hierarchical Reinforcement Learning: Learning Sub-goals and State-Abstraction ", Proc Conf. Ibérica de Sistemas e Tecnologias de Informação - CISTI , Chaves , Portugal , Vol. II , pp. 245 - 248 , June , 2011 . - Can, Y.; B.V.K. Vijaya Kumar Bhagavatula; M. Coimbra; " Human Identification based on ECG Signals from Wearable Health Monitoring Devices ", Proc International Symp. on Applied Sciences in Biomedical and Communication Technologies - ISABEL , Barcelona , Spain , Vol. 1 , pp. 1 - 4 , October , 2011 . - Iordache , M.; J. Dias; A. Plaza; " Hyperspectral unmixing with sparse group lasso (accepted) ", Proc IEEE International Geoscience and Remote Sensing Symp.IGARSS , Vancouver , Canada , Vol. 1 , pp. 1 - 4 , July , 2011 . - Santos, G. Santos; H. Proença; " Iris Recognition: Preliminary Assessment about the Discriminating Capacity of Visible Wavelength Data ", Proc International Workshop on Multimedia Information Processing and Retrieval - MIPR , Taichung , Taiwan , Vol. 1 , pp. 1 - 1 , November , 2011 . - Canento, F. A. L.; A. L. N. Fred; H. Silva; H. Gamboa; A. Lourenço; " Multimodal Biosignal Sensor Data Handling for Emotion Recognition ", Proc IEEE Sensors , Limerick , Ireland , October , 2011 . - Aidos, H.; A. L. N. Fred; " On the Distribution of Dissimilarity Increments ", Proc Iberian Conf. on Pattern Recognition and Image Analysis , Las Palmas de Gran Canaria , Spain , June , 2011 . - Martins, A.; M. A. T. Figueiredo; P. Aguiar; N. A. Smith; E. P. Xing; " Online Learning of Structured Predictors with Multiple Kernels ", Proc International Conf. on Artificial Intelligence and Statistics - AISTATS , Fort Lauderdale , United States , April , 2011 . - Fred, A. L. N.; H. Silva; A. Lourenço; " Palm based ECG biometrics ", Proc Portuguese Conf. on Pattern Recognition - RecPad , Porto , Portugal , October , 2011 . - Almeida, M.; R. V. Vigário; J. Dias; " Phase Locked Matrix Factorization ", Proc European Signal Processing Conf. - EUSIPCO , Barcelona , Spain , pp. 1728 - 1732 , August , 2011 . - Hedayioglu, F.; M. G. Jafari; S. S. Mattos; M. D. Plumbley; M. Coimbra; " Separating Sources from Sequentially Acquired Mixtures of Heart Signals ", Proc 268 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Portuguese Conf. on Pattern Recognition - RecPad , Porto , Portugal , Vol. 1 , pp. 100 - 103 , October , 2011 . - Alexandre, L.; " Single layer complex valued neural network with entropic cost function ", Proc International Conf. on Artificial Neural Networks - ICANN , Espoo , Finland , Vol. Springer LNCS 6791 , pp. 331 - 338 , June , 2011 . - Ferreira, A.; Oliveira; M. A. T. Figueiredo; " Sliding Window Update Using Suffix Arrays ", Proc IEEE Data Compression Conf. - DCC , Snowbird, UT, USA , United States , pp. 456 - 456 , March , 2011 . - Costa, P.; L.M. Botelho; " Software Image for Learning by Observation ", Proc Portuguese Conf. on Artificial Intelligence - EPIA , Lisbon , Portugal , pp. 872 - 884 , October , 2011 . - Dias, J.; M. Iordache ; A. Plaza; " Total variation regularization in sparse hyperspectral unmixing ", Proc IEEE Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing - WHISPERS 2009 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , June , 2011 . - Lourenço, A.; H. Silva; D. P. Santos; A. L. N. Fred; " Towards a Finger Based ECG Biometric System ", Proc INSTICC International Conf. on Bio-inspired Systems and Signal Processing - Biosignals , Rome , Italy ,January , 2011 . - Duarte, M.; A. Christensen; S. Oliveira; " Towards Artificial Evolution of Complex Behavior Observed in Insect Colonies ", Proc Portuguese Conf. on Artificial Intelligence - EPIA , Lisboa , Portugal , Vol. 1 , pp. 153 - 167 , October , 2011 . - Parracho, P. Parracho; R. Neves; N.H. Horta; " Trading with Optimized Uptrend and Downtrend Pattern Templates using a Genetic Algorithm Kernel ", Proc IEEE Congress on Evolutionary Computation - CEC , New Orleans , United States , June , 2011 . - Ferreira, A.; M. A. T. Figueiredo; " Unsupervised Feature Selection for Sparse Data ", Proc European Symp. on Artificial Neural Networks - ESANN , Bruges , Belgium , Vol. 1 , pp. 339 - 344 , April , 2011 . - Ferreira, A.; M. A. T. Figueiredo; " Unsupervised Joint Feature Discretization and Selection ", Proc Iberian Conf. on Pattern Recognition and Image Analysis , Las Palmas, Gran Canaria , Spain , June , 2011 . - Lourenço, A.; LM Medina; A. L. N. Fred; JBF Filipe; " Unsupervised Organisation of Scientific Documents ", Proc International Conf. on Knowledge Discovery and Information Retrieval - KDIR , Paris , France , pp. 557 - 568 , October , 2011 . 269 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA PROCESSING, ANALYSIS, INFORMATION AND CODING OF AUDIO AND VISUAL Books - Sousa, M.; M. Freire; Biomedical Diagnostics and Clinical Technologies: Applying High-Performance Cluster and Grid Computing , , Idea-Group Inc. , NY , 2011 . Book Chapters - Naccari, M. ; F. Pereira; " Comparing Spatial Masking Modelling in Just Noticeable Distortion Controlled H.264/AVC Video Coding " - Chapter in Analysis, Retrieval and Delivery of Multimedia Contents , Nicola Adami, Andrea Cavallaro, Riccardo Leonardi, Pierangelo Migliorati , Springer , Berlin , 2011 . - Ferreira, A.; P. Marques; " Echo Cancellation for Hands-Free Systems " - Chapter in Adaptive Filtering , Lino García Morales , In-Tech, 2011 . - Neves, F.N.; S.S. Soares; P.A. Assunção; F.T. Tavares; " Enhanced VoIP by signal reconstruction and voice quality assessment " - Chapter in VoIP Technologies , Shigeru Kashihara , In-Tech , Rijeka, Croatia , 2011 . - Fernandes , G. Falcão; V. Silva; L. Sousa; " Parallel LDPC Decoding " - Chapter in GPU Computing Gems , ed. Prof. Wen-mei W. Hwu , Morgan and Kaufmann , Burlington, MA, USA , 2011 . - Lenkiewicz, P.; M. Sousa; M. Freire; J.Fernandes Fernandes; " Techniques for Medical Image Segmentation: Review of the Most Popular Approaches " - Chapter in Biomedical Diagnostics and Clinical Technologies: Applying High-Performance Cluster and Grid Computing , IGI , Idea-Group Inc., 2011 . - Sousa, M.; F. Soares ; M. Freire; " The Role of Self-Similarity for Computer Aided Detection Based on Mammogram Analysis " - Chapter in Biomedical Diagnostics and Clinical Technologies: Applying High-Performance Cluster and Grid Computing , Idea-Group , Idea-Group Inc. , Hershey, New York , 2011 . Papers in Journals - Melo, R. M.; J. P. B. Barreto; G. Falcão Fernandes ; " A New Solution for Camera Calibration and Real-Time Image Distortion Correction in Medical Endoscopy - Initial Technical Evaluation ", IEEE Trans. on Biomedical Engineering , November , 2011 . - Baptista, P. R. ; T.R. Cunha; C. Bernardes; C. Gama; Ó. Ferreira; A. Dias; " A precise and efficient methodology to analyze the shoreline displacement rate ", Journal of Coastal Research , Vol. 27 , No. 2 , pp. 223 - 232 , March , 2011 . - Naccari, M. ; F. Pereira; " Advanced H.264/AVC based perceptual video coding: architecture, tools and assessment ", IEEE Trans. on Circuits and Systems for Video Tech. , Vol. 21 , No. 6 , pp. 766 - 782 , June , 2011 . 270 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Afonso, M.; J. Dias; M. A. T. Figueiredo; " An Augmented Lagrangian Approach to the Constrained Optimization Formulation of Imaging Inverse Problems ", IEEE Trans. on Image Processing , Vol. 20 , No. 3 , pp. 681 - 695 , March , 2011 . - Brites , C.; F. Pereira; " An Efficient Encoder Rate Control Solution for Transform Domain Wyner-Ziv Video Coding ", IEEE Trans. on Circuits and Systems for Video Tech. , Vol. 21 , No. 9 , pp. 1278 - 1292 , September , 2011 . - Tomé , A.; F. Pereira; " Low delay distributed video coding with refined side information ", Signal Processing: Image Communication , Vol. 26 , No. 4-5 , pp. 220 - 235 , April , 2011 . - Tomás, B.; F. Pereira; " Musical slideshow: boosting user experience in photo presentation ", Multimedia Tools and Applications , Vol. 55 , No. 3 , pp. 627 - 653 , March , 2011 . - Pereira, J.; H. A. Silva; " Orthogonal Perfect DFT sequences ", IET Signal Processing , Vol. in press , December , 2011 . Papers in Conference Proceedings - Lucas, LFRL; Nuno M. M. Rodrigues; E. Silva; S.M.M. Faria; " Adaptive Least Squares Prediction for Stereo Image Coding ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . - Dick, J. D.; H. A. Almeida; L. D. Soares; P. Nunes; " 3D Holoscopic Video Coding using MVC ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , April , 2011 . - Ascenso, J.; C. Brites ; F. Pereira; " A Denoising Approach for Iterative Side Information Creation in Distributed Video Coding ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . - Pereira, F.; G. Cernigliaro; M. Naccari; F. Jaureguizar; J. Cabrera; F. Pereira; " A new fast motion estimation and mode decision algorithm for H.264 depth maps encoding in free viewpoint TV ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . - Figueiredo, M. A. T.; J. Dias; " An Alternating Direction Algorithm for (Overlapping) Group Regularization ", Proc Workshop on Signal Processing with Adaptive Sparse Structured Representations - SPARS’11 , Edinburgh , United Kingdom , June , 2011 . - Noto, S. ; P.L. Correia; L. D. Soares; " Analysis of Error Correcting Codes for the Secure Storage of Biometric Templates ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Pallauf, J. Pallauf; P. Gomes; S. Brás Brás; J. P. C. Silva Cunha; M. Coimbra; " Associating ECG features with firefighter's activities ", Proc International Conf. of 271 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA the IEEE Engineering in Medicine and Biology Society - EMBC , Boston , United States , September , 2011 . - Ascenso, J.; C. Brites ; F. Pereira; " Augmented LDPC Graph for Distributed Video Coding with Multiple Side Information ", Proc IEEE Workshop on MultiMedia Signal Processing - MMSP , Hangzhou , China , October , 2011 . - Carmo, GC; M. Naccari; F. Pereira; " Binary tree decomposition depth coding for 3D video applications ", Proc IEEE International Conf. on Multimedia and Expo ICME , Barcelona , Spain , Vol. 1 , pp. 1 - 4 , July , 2011 . - Sanchit, S.; M. Ramalho; P.L. Correia; L. D. Soares; " Biometric Identification through Palm and Dorsal Hand Vein Patterns ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Graziosi, D. B. G.; C.L.P. Pagliari; E. Silva; S.M.M. Faria; Nuno M. M. Rodrigues; M. Carvalho; " Codificação de mapas de profundidade usando casamento de padrões multiescalas ", Proc Simpósio Brasileiro das Telecomunicações , Curitiba , Brazil , October , 2011 . - Francisco, N.; A. Zaghetto; B. Macchiavello; E. Silva; M. Lima-Marques; Nuno M. M. Rodrigues; S.M.M. Faria; " Compression of touchless multiview fingerprints ", Proc IEEE Biometric Measurements and Systems for Security and Medical Applications - BioMS , Milan , Italy , Vol. 1 , pp. 1 - 5 , September , 2011 . - Francisco, N.; Nuno M. M. Rodrigues; E. Silva; M. Carvalho; S.M.M. Faria; " Computational complexity reduction methods for multiscale recurrent pattern algorithms ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , pp. 1 - 4 , April , 2011 . - Nogueira, Pedro A. Nogueira; M. Coimbra; " Determining Leishmania Infection Levels by Automatic Analysis of Microscopy Images ", Proc Congresso de Métodos Numéricos em Engenharia , Coimbra , Portugal , June , 2011 . - Ramalho, M.; P.L. Correia; L. D. Soares; " DISTRIBUTED SOURCE CODING FOR SECURING A HAND-BASED BIOMETRIC RECOGNITION SYSTEM ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . - Correia, Pedro F.; P.A. Assunção; V. Silva; " Enhanced H.264/AVC Video Streaming using Network-adaptive Multiple Description Coding ", Proc IEEE Region 8 EUROCON 2011 International Conference on Computer as a Tool joint with the Conference on Telecommunications , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Marcelino, S. Marcelino; P.A. Assunção; S.M.M. Faria; S.S. Soares; " Error recovery of image-based depth maps using Bézier curve fitting ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . 272 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Sousa, M.; P. Lenkiewicz; M. Freire; " Extended Whole Mesh Deformati on Model: Full 3D Processing ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , Vol. 1 , pp. 1 - 1 , September , 2011 . - Brandão, T.; M. Chin; M.P. Queluz; " From PSNR to perceived quality in H.264 encoded video sequences ", Proc EuroITV , Lisbon , Portugal , Vol. CDROM , July , 2011 . - Afonso, M.; J. Dias; M. A. T. Figueiredo; " Hybrid Synthesis-Analysis Frame-Based Regularization: A Criterion and an Algorithm ", Proc Workshop on Signal Processing with Adaptive Sparse Structured Representations - SPARS’11 , Edinburgh , United Kingdom , June , 2011 . - Coimbra, M.; F. Riaz; F. Vilarino Vilarino; M. Dinis-Ribeiro; " Identifying potentially cancerous tissues in Chromoendoscopy images ", Proc Iberian Conf. on Pattern Recognition and Image Analysis , Gran Canaria , Spain , Vol. 1 , pp. 1 - 1 , June , 2011 . - Conti, C. ; J. Lino; P. Nunes; L. D. Soares; P.L. Correia; " Improved Spatial Prediction for 3D Holoscopic Image and Video Coding ", Proc European Signal Processing Conf. - EUSIPCO , Barcelona , Spain , August , 2011 . - Naccari, M. ; F. Pereira; " Integrating a spatial just noticeable distortion model in the under development HEVC codec ", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Prague , Czech Republic , Vol. 1 , pp. 1 4 , May , 2011 . - Sousa, M.; A. Arrifano; M. Freire; " Joint Source-Channel Decoding of MotionInformation Using Maximum-a-Posteriori ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , Vol. 1 , pp. 1 - 1 , September , 2011 . - Naccari, M. ; C. Brites ; J. Ascenso; F. Pereira; " Low complexity deblocking filter perceptual optimization for the HEVC codec ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , Vol. 1 , pp. 1 - 4 , September , 2011 - Almeida, M.S.C.; M. A. T. Figueiredo; " New stopping criteria for iterative blind image deblurring based on residual whiteness measures ", Proc IEEE Workshop on Statistical Signal Processing - SSP , Nice , France , June , 2011 . - Afonso, M.; J. Dias; M. A. T. Figueiredo; " Non-cyclic deconvolution using an augmented-Lagrangian method ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , April , 2011 . - Pereira, F.; " Panel on 'Quality of Experience in Applications, Standardization and Certification' ", Proc International Workshop on Quality of Multimedia Experience QoMEX , Mechelen , Belgium , September , 2011 . - Conti, C. ; " Paulo ", Proc European Signal Processing Conf. - EUSIPCO , Barcelona , Spain , August , 2011 . 273 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Cabrita, A.S.C; M. Naccari; F. Pereira; " Perceptually driven coefficients pruning and quantization for the H.264/AVC standard ", Proc Conf. on Telecommunications ConfTele , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Pereira, J.; H. A. Silva; " Perfect DFT Sequences Transformed Into Orthogonal Sequences ", Proc EUROCON and CONFTELE 2011 , Libon , Portugal , pp. 1 - 4 , April , 2011 . - Neves, F.N.; S. Pedro; S.S. Soares; P.A. Assunção; F.T. Tavares; " Quality model for monitoring QoE in VoIP services ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Ramalho, M.; S. Sanchit; P.L. Correia; L. D. Soares; " Secure Multi-Spectral Hand Recognition System ", Proc European Signal Processing Conf. - EUSIPCO , Barcelona , Spain , August , 2011 . - " Secure Multi-Spectral Hand Recognition System ", Proc European Signal Processing Conf. - EUSIPCO , Barcelona , Spain , August , 2011 . - Hedayioglu, F.; M. G. Jafari; S. S. Mattos; M. D. Plumbley; M. SEPARATING SOURCES FROM SEQUENTIALLY ACQUIRED MIXTURES SIGNALS ", Proc IEEE International Conf. on Acoustics, Speech, Processing - ICASSP , Prague , Czech Republic , Vol. To be published| published| - To be published| , May , 2011 . Coimbra; " OF HEART and Signal , pp. To be - Coimbra, M.; M. G. Jafari; S. Rabaça; M. D. Plumbley; " Separating sources from sequentially acquired mixtures of heart signals ", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP , Prague , Czech Republic , Vol. 1 , pp. 1 - 1 , May , 2011 . - Conti, C. ; J. Lino; P. Nunes; L. D. Soares; P.L. Correia; " Spatial Prediction Based on Self-Similarity Compensation for 3D Holoscopic Image and Video Coding ", Proc IEEE International Conf. on Image Processing - ICIP , Brussels , Belgium , September , 2011 . - Lucas, LFRL; Nuno M. M. Rodrigues; E. Silva; S.M.M. Faria; " Stereo Image Coding using Dynamic Template-Matching Prediction ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Pinto, L.F.H.P.; J. F. M. C. Carreira; S.M.M. Faria; Nuno M. M. Rodrigues; P.A. Assunção; " Subjective Quality Factors in Packet 3D Video ", Proc IEEE International Workshop on Quality of Multimedia Experience - QoMEX , Mechelen , Belgium , Vol. 1 , pp. 1 - 1 , September , 2011 . - Pereira, F.; " Video compression: an evolving technology for better user experiences … ", Proc National Conf. on Telecommunications (Peru) , Arequipa , Peru , May , 2011 . - Pereira, F.; " Visual compression: the foundational technology for better TV experiences ", Proc EuroITV , Lisboa , Portugal , June , 2011 . 274 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA Project Reports - Kumar, Navin; M. Figueiredo; L. Alves; R. L. Aguiar; " VLC Modulation Schemes ", FCT , PDC/VIDAS/2006 , March , 2011 . SPEECH ANALYSIS AND RECOGNITION Book Chapters - Lopes, C.; F. Perdigão; " Phone Recognition on the TIMIT Database " - Chapter in Speech Technologies , Ivo Ipsic , In-Tech , 2011 . Papers in Conference Proceedings - Veiga, A.; S. Candeias; C. Lopes; F. Perdigão; " Characterization of Hesitations Using Acoustic Models ", Proc International Congress of Phonetic Sciences - ICPhS XVII , Hong Kong , China , August , 2011 . TRAFFIC ENGINEERING Book Chapters - Nogueira, A. N.; P. Salvador; R. Valadas; A. Pacheco; " Markovian Modelling of Internet Traffic " - Chapter in Performance Handbook in Next Generation Internet: Performance Evaluation & Applications , D. Kouvatsos , Springer , Berlin-Heidelberg , 2011 . Papers in Conference Proceedings - Nogueira, A. N.; P. Salvador; R. Valadas; A. Pacheco; " Joint Modeling of Network Related Events with Multi-Dimensional Markov Modulated Deterministic Processes ", Proc IEEE International Conf. on Software, Telecommunications and Computer Networks - SoftCOM , Hvar , Croatia , September , 2011 . - Nogueira, A. N.; P. Salvador; " Markov Modulated Bi-variate Gaussian Processes for Mobility Modeling and Location Prediction ", Proc IFIP Networking , Valencia , Spain , May , 2011 .- Nogueira, A. N.; P. Salvador; " Modeling M2M Traffic: A New Paradigm ", Proc International Conf. on Telecommunication Systems, Modeling and Analysis - ICTSM , Prague , Czech Republic , May , 2011 .´ - Silva, L.S.; R Marau ; L. Almeida; " Sessão RTSS@Work: Demonstrating real-time reconfiguration in service-oriented distributed systems ", Proc IEEE Real-Time Systems Symp. - RTSS , Viena , Austria , Vol. 1 , pp. 1 - 4 , November , 2011 . 275 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA 4.3.7 Other Achievements Prototypes - Garcia, N. M. ; R. G. C. Couto; A. P. P. Pinheiro; " BioPLUX communication suite ", 1.0 , November , 2011 . - Couto, R. G. C.; A. A. A.; N. M. Garcia; " InventALLab ", 1.0 , June , 2011 . Patents - Barreto, J. P. B.; G. Falcão Fernandes ; R. M. Melo; " METHOD, MODEL, AND APPARATUS, FOR AUTOMATIC CAMERA CALIBRATION USING ONE OR MORE IMAGES OF A CHECKERBOARD PATTERN, ON-LINE UPDATE OF THE PROJECTION PARAMETERS IN CASE OF LENS ROTATION, AND REAL-TIME IMAGE RECTIFICATION USING PARALLEL PROCESSING (pending) ", 105832 , July , 2011 . - Rodrigues, J. R.; V. S. Soares; F. F. Farahmand; " Método de Transmissão de Dados em Redes Veículares com Ligações Intermitentes ", PT 104538 , August , 2011 . - Garcia, N. M. ; R. G. C. Couto; A. P. P. Pinheiro; " Sistema de Interação Mista Web+SMS para Monitorização e Treino de Estilos de Vida ", Portuguese Patent 105903, pending , June , 2011 . - Garcia, N. M. ; R. G. C. Couto; A. P. P. Pinheiro; " Wearable device for interface control ", Portuguese Patent 105404, pendin , May , 2011 . Awards - Lucas da Silva, M.; C. Simões; H. Silva; " Prémio Engenheiro Jaime Filipe ", This award, promoted by the Portuguese Social Security Institute, distinguishes yearly the most innovative and autonomy enabling solution within the domain of rehabilitation engineering, and at a National level it currently stands as the highest recognition in this field. , 01-12-2011 . - Veiga, A.; S. Candeias; F. Perdigão; " Generating a pronunciation dictionary for European Portuguese using a mixed model ", prize for the 3rd best papaer in the 8th Symposium in Information and Human Language Technology (STIL 2011), Cuiabá, UFMG - Brazil. , 01-10-2011 . - Almeida, M.S.C.; " Menção honrosa no Prémio Científico IBM 2010 ", Este Prémio foi instituído pela IBM em 1990 para distinguir trabalhos com elevado mérito científico no campo da computação teórica e aplicada, realizados por investigadores portugueses com idade inferior a 36 anos de idade. (http://www05.ibm.com/pt/pc/premio.html) , 01-01-2011 . Miscellaneous - Lopes, F.; " MSc Thesis Jury ", Adaptação do protocolo DCCP para tráfego VOIP ", ESTG-IPL-2011 , 01-12-2011 . 276 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - Lopes, F.; " MSc Thesis Jury ", Gestão eficiente da fila DCCP em fontes de vídeo 3D baseada em informações de cross-layer ", ESTG-IPL-2011 , 01-12-2011 . - Figueiredo, M. A. T.; " Invited Talks ", On the Use of Alternating Direction Optimization for Imaging Inverse Problems ", Symposium on Variational Image Analysis (VIA11), Heidelberg, Germany , 01-07-2011 . - Faria, S.M.M.; " PhD Thesis Jury ", Video coding with low encoder complexity for systems with multiple cameras - FEP - Universidade do Porto ", , 01-07-2011 . - Nunes, P.; " PhD Thesis Jury ", No-reference Image and Video Quality Assessment ", 01-06-2011 . - Caldeirinha, R.F.S.; " MSc Thesis Jury ", Using Least-Squares Prediction for Compression of Colour and Stereo Images ", Luis Lucas, Polytechnic Institute of Leiria , 01-06-2011 . - Nunes, P.; " MSc Thesis Jury ", Televisão Digital Terrestre Desafios e Estratégias de Implementação em Moçambique ", 01-05-2011 . - Sargento, S.; " Member of Advisory Committee ", Avaliadora de Projectos Europeus da Comissão Europeia da área de Research Infrastructures, FP7, Call 5, 2009 ", FP7-INFRASTRUCTURES-2009-1 , 01-01-2011 . - Queluz, M.P.; " Member of Advisory Committee ", Elected Member of The EURASIP Board of Directors ", 01-01-2011 . - Rodrigues, J. R.; " Member of Technical Committee ", IEEE ComSoc Technical Committee on Communications Software ", Vice-Chair , 01-01-2011 . 4.3.8 Other Contributions Conference Committees - IEEE International Conf. on Image Processing - ICIP, Technical Programme Chairman, Paulo Lobato Correia, 01-01-2011 - International Workshop on Quality of Experience for Multimedia Content Sharing QoEMCS, Organizing Committee, Rui Jorge Henriques Calado Lopes, 01-06-2011 - European Conf. on Complex Systems - ECCS, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-09-2011 - European Signal Processing Conf. - EUSIPCO, Technical Programme Committee, Paulo Nunes, 01-01-2011 - International Conf. on Image Analysis and Recognition, Technical Programme Committee, Miguel Tavares Coimbra, 01-01-2011 277 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - IFIP Networking 2011: Workshop on Network Coding Applications and Protocols NC-Pro, Conference Chairman, Daniel Enrique Lucani Roetter, 01-01-2011 - International Workshop on Quality of Experience for Multimedia Content Sharing QoEMCS, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - International Conf. on Signal Processing and Multimedia Applications, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - International Conf. on Image Analysis and Recognition, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - IEEE Real-Time Systems Symp. - RTSS, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - Workshop de Sistemas Operacionais - WSO, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - Workshop on Adaptive and Reconfigurable Embedded Systems - APRES, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - IARIA International Conf. on Communication Theory, Reliability, and Quality of Service - CTRQ, Technical Programme Committee, Vasco Nuno da Gama de Jesus Soares, 01-01-2011 - Computability and Complexity in Analysis Committee, Luis Filipe Coelho Antunes, 01-01-2011 CCA, Technical Programme - International Conf. on Computer and Communication Technology - ICCCT, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-09-2011 - European Signal Processing Conf. - EUSIPCO, Scientific Committee, Paulo Lobato Correia, 01-01-2011 - Euro-Ngi Conf. on Next Generation Internet Programme Committee, Amaro Sousa, 01-06-2011 Networks (NGI), Technical - International Network Optimization Conf. - INOC, Scientific Committee, Amaro Sousa, 01-01-2011 - IFIP International Conf. on New Technologies, Mobility and Security - Wireless Sensor Networks Workshop - NTMS, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - IEEE Symp. on Industrial Embedded Systems - SIES, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - European Workshop on Biometrics and Identity Management - BioID, Technical Programme Committee, Luís Ducla Soares, 01-01-2011 278 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - International Conf. on Image Analysis and Recognition, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - Asian Conf. on Inteligent Information and Database Systems - ACIIDS, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - International Conf. on Signal Processing and Multimedia Applications, Technical Programme Committee, Maria Paula Queluz, 01-01-2011 - Ibero-American Symp. in Computer Graphics, Technical Programme Chairman, Frutuoso Gomes Mendes da Silva, 01-06-2011 - European Signal Processing Conf. - EUSIPCO, Technical Programme Committee, Paulo Lobato Correia, 01-01-2011 - IEEE International Conf. on Emerging Technologies and Factory Automation ETFA, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - International Conf. on Advances in Computer Entertainment Technology - ACE, Scientific Committee, Frutuoso Gomes Mendes da Silva, 01-01-2011 - Conf. on Electronics, Telecommunications and Computers - CETC, Scientific Committee, Fernando Lopes, 01-01-2011 - CETC2011- Conf. on Electronics, Telecommunications and Computers , Scientific Committee, Pedro Miguel dos Santos Alves Madeira Adão, 01-01-2011 - Inforum - Simpósio de Informática, Scientific Committee, Pedro Miguel dos Santos Alves Madeira Adão, 01-01-2011 - Networks for Real-Time Embedded Systems - NERES, Organizing Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - IEEE Symp. on Industrial Embedded Systems - SIES, Technical Programme Committee, Paulo Bacelar Reis Pedreiras, 01-01-2011 - Workshop on Agreement Technologies - WAT, Technical Programme Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-01-2011 - Multi-Agent Systems: Theory and Applications - MASTA, Technical Programme Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-01-2011 - Portuguese Conf. on Artificial Intelligence - EPIA, Technical Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-01-2011 Programme - Affective Computing and Intelligent Interaction - ACII, Technical Programme Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-01-2011 - International Conf. on Electronic Commerce and Web Technologies - EC-Web, Technical Programme Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-012011 279 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - International Conf. on Autonomous Agents and Multiagent Systems - AAMAS, Technical Programme Committee, Luis Miguel Pina Coelho Teixeira Botelho, 01-012011 - Conf. Ibérica de Sistemas e Tecnologias de Informação - CISTI , Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-05-2011 - First Iberian Workshop on Serious Games and Meaningful Play - SGaMePlay, Scientific Committee, Frutuoso Gomes Mendes da Silva, 01-01-2011 - Mosharaka International Conf. on Computing and Artificial Intelligence - MIC-CAI, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-07-2011 - Conf. on Telecommunications - ConfTele, Conference Chairman, Sérgio Faria, 0101-2011 - International Conf. on Telecommunications - ICT, Scientific Committee, Sérgio Faria, 01-01-2011 - Conf. on Telecommunications - ConfTele, Scientific Committee, Sérgio Faria, 0101-2011 - IEEE International Conf. on Next Generation Mobile Applications, Services, and Technologies - NGMAST, Technical Programme Committee, Fernando J. Velez, 0101-2011 - International Conf. on Hand-Based Biometrics - ICHB, Scientific Committee, Hugo Pedro Martins Carriço Proença, 01-01-2011 - IAPR International Conf. on Biometrics - ICB, Scientific Committee, Hugo Pedro Martins Carriço Proença, 01-01-2011 - IEEE International Joint Conf. on Biometrics - IJCB, Sessions Chairman , Hugo Pedro Martins Carriço Proença, 01-01-2011 - Conf. on Electronics, Telecommunications and Computers - CETC, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-11-2011 - IEEE International Workshop on Video Panorama - IWVP, Technical Programme Committee, Paulo Nunes, 01-01-2011 - IEEE International Conf. on Networks, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 01-12-2011 - EuroITV, Technical Programme Committee, Rui Jorge Henriques Calado Lopes, 0106-2011 - International Conf. on Multimedia, Signal Processing and Communication Technologies - IMPACT, Scientific Committee, Fernando Lopes, 01-01-2011 280 ANNUAL REPORT 2011 – NETWORKS AND MULTIMEDIA - IARIA International Conf. on Internet Monitoring and Protection - ICIMP, Technical Programme Committee, João Vasco Paulo Gomes , 01-01-2011 Editorial Committees - Intrnl. Journal of Satellite Communications Policy and Management , InderScience Publishers, Joel José Puga Coelho Rodrigues, Editorial Board Member, 01-04-2011 to - European Trans. on Telecommunications , Wiley, Joel José Puga Coelho Rodrigues, Editorial Review Board Member, 01-06-2011 to - Recent Patents on Telecommunications , Bentham Science Publishers Ltd., Joel José Puga Coelho Rodrigues, Editor-in-Chief, 01-06-2011 to - Intrnl. Journal of Biometrics , Inderscience, Hugo Pedro Martins Carriço Proença, Editorial Board, 01-09-2011 to 281 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4 Basic Sciences and Enabling Technologies 4.4.1 Area Coordinators 4.4.2 Pedro Girão Luís Alcácer Human Resources Overview Degree Aveiro Coimbra Lisboa Professor Emeritus 0 0 1 Full Professor 1 3 3 Associate Professor 0 2 7 Assistant Professor 4 5 13 Post-Doc 0 5 6 Coordinator Professor 0 1 2 Assistant Lecturer 0 4 0 PhD Student 5 7 16 (Licenciado) 0 0 1 10 27 49 TOTAL Table 26 – Overview of the human resources in the Basic Sciences and Enabling Technologies Area in 2011 282 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Permanent Collaborators Position Assistant Professor Assistant Professor Assistant Professor Post. Doc. Post. Doc. Degree PhD Name Acácio Manuel Amaral Group Power Systems – Co PhD Adérito Neto Alcaso Power Systems – Co PhD Amaro Sousa PhD PhD Ana Charas Ana Teresa Fernandes Pereira Network Architectures and Protocols – Av Organic Electronics – Lx Organic Electronics – Lx Assistant Professor PhD André Manuel dos Santos Mendes Power Systems – Co Post. Doc. PhD Antonino Stabile Power Systems – Co Full Professor Agregação António Cardoso Power Systems – Co Full Professor Agregação António Cruz Serra Associate Professor Associate Professor Assistant Professor Agregação Artur Lopes Ribeiro Agregação Beatriz Borges Instrumentation and Measurements – Lx Instrumentation and Measurements – Lx Power Electronics - Lx PhD Domingos da Silva Barbosa Integrated Circuits – Av PhD Edgar Silva Pereira Applied Mathematics – Cv Assistant Professor Full Professor Agregação Eduardo de Sousa Saraiva Power Systems – Co Assistant Professor Assistant Professor PhD Assistant Professor Post. Doc. PhD Francisco Alegria PhD Gianluca Fabbri Agregação Helena Ramos PhD Hugo Marques Instrumentation and Measurements – Lx Power Electronics - Lx PhD João Manuel Patrício Applied Mathematics – Co Agregação Joaquim Júdice Applied Mathematics – Co Associate Professor Assistant Professor Assistant Professor Full Professor PhD Fernando Tim Tim Janeiro Instrumentation and Measurements – Lx Fernando Manuel Lourenço Applied Mathematics – Cv Martins Instrumentation and Measurements – Lx Power Systems – Co 283 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Position Assistant Professor Degree PhD Name Jorge Manuel Correia Guilherme Group Integrated Circuits - Lx Associate Professor Full Professor Agregação Jorge Morgado Organic Electronics – Lx Agregação José António Marinho Brandão Faria Instrumentation and Measurements – Lx Licenciatura José Augusto Alves Gouveia Instrumentation and Measurements – Lx Coordinator Professor Post. Doc. Agregação José Dias Pereira PhD Lorenzo Petrucci Instrumentation and Measurements – Lx Power Systems – Co Professor Emeritus Coordinator Professor Assistant Professor Post. Doc. Agregação Luís Alcácer Organic Electronics – Lx PhD Luís Merca Fernandes Applied Mathematics – Co PhD Luis Nero Alves Integrated Circuits – Av PhD M´hamed Drif Power Systems – Co Assistant Professor PhD Manuel Fernando Martins de Barros Integrated Circuits - Lx Associate Professor PhD Manuel Lameiras de Figueiredo Campagnolo Security and Quantum Information –Lx Coordinator Professor Assistant Professor PhD Manuel Matos Organic Electronics – Lx PhD Manuel Ventura Guerreiro das Neves Instrumentation and Measurements – Lx Associate Professor Assistant Professor PhD Maria Madalena Martins Applied Mathematics – Co PhD Nuno Gonçalo Bandeira Brás Instrumentation and Measurements – Lx Assistant Professor Post. Doc. PhD Nuno Horta Integrated Circuits - Lx PhD Octavian Postolache Agregação Pedro Ramos Agregação Pedro Silva Girão Instrumentation and Measurements – Lx Instrumentation and Measurements – Lx Instrumentation and Measurements – Lx Licenciado Assistant Professor Full Professor 284 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Position Post. Doc. Degree PhD Name Quirina Ferreira Group Organic Electronics – Lx Assistant Professor Post. Doc. PhD Raúl Martins PhD Rita França de Sousa Rodrigues Instrumentation and Measurements – Lx Organic Electronics – Lx Post. Doc. PhD Rui Miguel Martins de Azevedo Meira Organic Electronics – Lx Assistant Professor Associate Professor Post. Doc. PhD Rui Neves Integrated Circuits - Lx PhD Rui Teives Henriques Organic Electronics – Lx PhD Tomás Radil Assistant Professor PhD Vitor Manuel da Silva Costa Instrumentation and Measurements – Lx Power Electronics - Lx Associate Professor Agregação Vitor Manuel de Oliveira Maló Machado Instrumentation and Measurements – Lx Table 27 – Permanent Collaborators working in the Basic Sciences and Enabling Technologies Area in 2011 Other Collaborators Position Assistant Lecturer PhD Student Degree MSc Name Ana Carla Vicente Vieira Group Power Systems – Co MSc Ana Luisa Mendonça Organic Electronics – Lx Ana Margarida de Matos Bragança Organic Electronics – Lx Bruno Miguel Gil Rosa Instrumentation and Measurements – Lx Power Systems – Co MSc PhD Student MSc PhD Student Assistant Professor PhD Bruno Ricardo Oliveira Baptista MSc Carlos Ferreira Power Electronics - Lx PhD Celino José Martins Miguel Applied Mathematics – Cv 285 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Position PhD Student Degree Licenciatura Name David Filipe Correia Guilherme Group Integrated Circuits - Lx Full Professor Agregação Dinis Magalhães Santos Integrated Circuits – Av PhD Student MSc Integrated Circuits – Av Post. Doc. PhD Domingos Augusto Teixeira Terra Dorabella Martins da Silva Santos Applied Mathematics – Co PhD Student Licenciatura Eduardo Correia Pinheiro Instrumentation and Measurements – Lx Power Systems – Co PhD Student MSc Eunice de Fátima Fragoso Ribeiro PhD Student MSc Hugo Ribeiro Power Electronics - Lx PhD Student MSc Joana Farinhas Organic Electronics – Lx PhD Student Licenciatura Jorge Oliveira Estima Power Systems – Co PhD Student MSc José Carlos Sequeira Martins dos Santos Instrumentation and Measurements – Lx PhD PhD José Carlos Teixeira Applied Mathematics – Co Assistant Professor Assistant Lecturer PhD Student PhD José Cura Integrated Circuits – Av MSc José Luís Silva Power Systems – Co MSc José Manuel Matias Pinto Integrated Circuits - Lx PhD Student MSc Luis Filipe Morgado Organic Electronics – Lx PhD Student MSc Luís Filipe Silva Camacho PhD Student MSc Luís Filipe Soldado Granadeiro Rosado Security and Quantum Information –Lx Instrumentation and Measurements – Lx Assistant Lecturer Associate Professor PhD Student MSc Luís M. Oliveira Power Systems – Co PhD Maria Celeste Gouveia Applied Mathematics – Co MSc Maria da Graça Laranjo Mendes Brotas Organic Electronics – Lx Assistant Lecturer MSc Marina Perdigão Power Systems – Co 286 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Position PhD Student Degree MSc PhD Student Name Mauro Edgar Pereira Figueiredo Santos Group Integrated Circuits - Lx Mohsen Bandarabadi Power Systems – Co PhD Student MSc Mónica Figueiredo Integrated Circuits – Av PhD Student MSc Natália Gameiro Power Systems – Co PhD Student MSc Navin Kumar Integrated Circuits – Av PhD Student MSc Nuno Calado Correia Lourenço Integrated Circuits - Lx PhD Student MSc Nuno Miguel Amaral Freire Power Systems – Co PhD Student MSc Nuno Rafael Mendonça Lourenço Integrated Circuits – Av Purnachand Nalluri Integrated Circuits – Av PhD Sérgio Cruz Power Systems – Co PhD Student Assistant Professor Assistant Professor PhD Student PhD Silvério Simões Rosa Applied Mathematics – Cv MSc Tânia Isabel de Almeida Braz Organic Electronics – Lx PhD Student MSc PhD Student MSc Teresa Margarida Gonçalves Applied Mathematics – Co Ferreira Gaspar Vitor Viegas Instrumentation and Measurements – Lx Table 28 – Non-permanent Collaborators working in the Basic Sciences and Enabling Technologies Area in 2011 287 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4.3 Summary of Research Achievements 4.4.3.1 Contributing groups Applied Electromagnetics - Lx Applied Mathematics - Co Applied Mathematics- Cv Integrated Circuits – Av Integrated Circuits - Lx Organic Electronics - Lx Power Electronics - Lx Power Systems – Co Instrumentation and Measurement - Lx 4.4.3.2 Applied Electromagnetics – Lx Scope and Objectives The recently created Group of Applied Electromagnetics conducts research activities in the broad domain of the Electromagnetic Field Theory and its applications to electric, magnetic, and electronic devices. In 2011 the following interrelated topics have been addressed: Transmission-line structures Skin-effect phenomena Transformer modeling Computational methods for electromagnetic field evaluation 4.4.3.3 Group Transmission-line structures research on transmission-line structures is multifaceted, encompassing theory and applications, and aiming at a variety of targets. The problem of the numerical evaluation of the series-impedance of uniform multiconductor overhead power lines, taking into account 288 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES transverse variations of conductivity and permeability of line conductors and soil, was analyzed and solved by resorting to a new developed method that employs elemental current strips instead of current filaments. The method is general and can be applied to other transmission-line geometries. Bundled conductors in triangular and flat configurations are used in HV overhead power lines in order to mitigate corona and dielectric breakdown phenomena. Analytical and numerical results, concerning the comparison between the two bundle configurations were obtained from the viewpoint of the series-impedance, magnetic field, and conductor current distributions. Conclusions point out that the flat configuration is less affected by magnetic field proximity effects. Magnetic fields produced by underground power cables can endanger human safety. The important problem of magnetic field mitigation using shielded cables was solved numerically considering different options for the shielding material —aluminum shielding proved to be more efficient. An investigation path on the novel subject of magnetic transmission lines was initiated. Signal transmission in magnetic transmission lines is assured by means of two parallel magnetic-flux carrying magnetic strips as opposed to the familiar situation of two parallel currentcarrying electric strips. Preliminary research (that led to a patent submission) suggests that magnetic transmission lines can perform better than electric transmission lines in the microwave and terahertz bands. 4.4.3.4 Skin-effect phenomena Research was focused on inhomogeneous circular cylindrical tubular conductors, and magnetic cores, exhibiting radial variation of the medium constitutive parameters. A matrix approach and a circuital approach were developed for the evaluation of the pul internal impedance of multilayered conductors, 289 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES where each layer is characterized by arbitrary values of the permeability, permittivity, and conductivity. In addition, it was shown that, when a certain type of radial variation of the medium parameters is enforced, the skin-effect diffusion equation transforms into a second-order Euler-Cauchy equidimensional equation, whose field solution can be described by exact, but simple, closed-form expressions involving integer powers of the radial coordinate —such inhomogeneous media were coined “Euler-Cauchy media”. An analysis aimed at the characterization of the complex inductance of an N-turns coil embracing an inhomogeneous Euler-Cauchy toroidal core was also developed, taking into account eddy currents in the core and considering frequencies up to 2 MHz. 4.4.3.5 Transformer modelling A current transformer of clamp type with a toroidal core was analyzed from the viewpoint of the eccentricity of the primary circuit where one conductor goes through the core’s window and the return conductor is outside the core. Research was focused on the influence of the position of the primary circuit conductors on the evaluation of the mutual inductance between primary and secondary circuits. Analytical results and closed-form expressions for the mutual inductance were obtained for the case of an air-core transformer. A finite-element method was also employed for the numerical computation of the mutual inductance for the cases of air-cores and iron-cores. 4.4.3.6 Computational methods for electromagnetic field evaluation The development of computational methods and software tools for electromagnetic field calculation is key for most of the above reported research activities of the Group. 290 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES In what concerns the magnetic field analysis of three-conductor bundles, a dedicated software package was developed considering the multipole method for the dielectric medium, and Fourier series and Bessel functions expansions for the conductors. In what concerns the magnetic field mitigation problem in shielded underground cables, a dedicated software package was developed considering a hybrid FEM/semi-analytical expansion for analyzing the open boundary magnetic field problem. In what concerns the magnetic field evaluation in a current transformer with eccentric primary conductors, a dedicated software package was developed considering a triangular FEM mesh together with Dirichlet and Neumann boundary conditions. 4.4.3.7 The Applied Mathematics – Co research of the Group of Applied Mathematics in Telecommunications has been focused on Optimization and Numerical Linear Algebra. The members of this group have been working on establishing new theoretical results concerning existence and uniqueness and convergence analyses of algorithms for the solution of some important problems in Linear Algebra and Optimization. Furthermore they have been devoted to the design, implementation and testing of algorithms for the solution o these problems. Collaboration with engineers on the solution of some models of engineering, namely in telecommunications, has be enhanced. The most relevant research topics are presented below: Preconditioning and convergence of iterative methods for the solution of linear systems of equations, generalized inverses and its applications. Interior-point algorithms, active-set methods, sequential quadratic algorithms and complementarity enumerative problems and methods finite for the dimensional solution of variational inequalities. 291 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Complementarity algorithms, positive semi-definite and reformulationlinearization techniques for bilevel programming, quadratic and bilinear programming, eigenvalue complementarity problems and mathematical programs with linear complementarity constraints. Solution of structured optimization models arising in telecommunications, civil engineering, and finance. Hybrid approaches for models in telecommunications based on columngeneration and local search heuristics. Efficient reformulation techniques for hop and degree constrained problems. Routing algorithms for 6LoWPAN mesh networks. 4.4.3.8 Applied Mathematics- Cv The group develops research activity in the areas of Matrix Analysis, Optimization , Mathematics Education and Numerical Methods, Ring Theory, Quaternion Rings, Differential Equations, Graph Theory, Metapopulation Dynamics; with applications mainly to Simulation, Mathematical Modeling, Systems Stability, Epidemics and Demographic Migration. 4.4.3.9 Integrated Circuits – Av Summary This report describes the scientific activities reported under the area of Basic Sciences and Enabling Technologies, during the year of 2011, at the Institute of Telecommunications – Aveiro site (IT – Aveiro). During this year, there was only one group reporting under this topic, the group of Integrated Circuits. The Integrated Circuits group at the ITAveiro is composed by four effective members, namely: Luis Filipe Mesquita Nero Moreira Alves, Dinis Gomes Magalhães dos Santos, José Luis Vieira Cura and Domingos Silva Barbosa. This report is divided into two sections, namely: section I, presents the group members and side collaborators and section ii, describes the scientific activities addressed during 2011. 292 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Detailed activities: The scientific activities addressed by the members of the integrated Circuits group from IT-Aveiro, during the year of 2011 followed seven lines: 1) energy efficient concepts for public illumination systems; 2) energy efficient integrated circuit amplifier design; 3) visible light communication system design 4) TDOA telemetry for wildlife tracking systems, 5) SAW based sensors development and design; 6) Radio astronomy methods for deep space exploration – project GEM; and 7) Radio astronomy methods for deep space exploration – project PrepSKA. The activities under these lines have gathered knowledge on some areas of interest for this group. In some cases, the actions taken resulted also on the industrial contacts at both national and international levels. The following description highlights the important achievements under each of these lines. Energy Efficient Concepts for Public Illumination Systems – This topic represents a new trend on the usual activities of this group. It departed from the gathered knowledge on solid state lighting devices, LEDs, also explored for other objectives. Public illumination systems are predicted to be dominated by solid state lighting devices in the next few years. LEDs, present several advantages to other illumination devices in current use. The exploitation of these advantages and the advancement of collaborative control strategies for these systems are currently a hot topic for both research and industrial sectors. The activities under this line of research started with the participation on an International funded project, involving several participants from the European community (project LITES: CIP-ICT-PSP-2008-2/238916). The major achievements under this line of research are the dissemination of the group activities both at national and international levels, and the direct contact of several actors from the industrial sector that may result in future collaborations. Energy Efficient Integrated Circuit Amplifier Design – This line of research results from the gathered experience of this group on the field of integrated circuit design. The main objective is to advance new design strategies able to optimize circuit performance without impairing power consumption. The expected outcome will be to achieve 293 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES energy efficient amplifiers. Until this point the research on this line was concentrated on the analysis and deployment methods for minimum power consumption in amplifiers. This line of researched is supported on a national funded project (project EECCO: PTDC/EEA- TEL/105314/2008). Visible Light Communication System Design – The research under this topic has started several years ago, with project VIDAS (PTDC/EEATEL/75217/2006). The main objective of this project was to explore visible light as a communication means for driver assistance systems. Traditional lighting devices are not suitable for communication purposes due to their persistence between switching states. This is the case of both incandescent and discharge devices. LEDs, on the other end, enable fast switching operation, thus potentiating other applications rather than lighting. VIDAS project elaborated use LEDs for both signaling and communication purposes. The research on this topic is reaching to important conclusions. A real demonstrator was assemble to show that visible light can be used for communication at low data rates, and also, that evolved modulation techniques, such as spread spectrum, are required to combat the presence of noise (especially on outdoor scenarios). This project has reached its conclusion in March 2011, resulting in several important published contributions, one PhD thesis and three MsC dissertations. The PhD student, Navin Kumar received the two prizes for his contributions on this field: the Gowry award for the best paper published in the IETE Technical Review and the second place in the Fraunhofer Portugal Challenge 2011. His work also received honors during the presentation on the Research day 2011 event held at the University of Aveiro. Application of visible light communication concepts to other areas rather than intelligent transportation systems (as in VIDAS project) has been started during 2011. Possible international co-operations build up on LITES project has been started aiming for better energy efficiency in public lighting systems supported on visible light communication concepts. These actions are aligned with the agenda of COST action IC1101 (Optical Wireless: a promising technology), integrating a member from the Integrated Circuits group. 294 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES A major shift in research interests occurred in 2010. The main line is now on surface acoustic wave devices, which will be used both as identifiers and sensors for various physical magnitudes. Behavior of the devices will undergo a major improvement by the use of carbon (diamond-like) thin film deposition. In connection with this line of work, we have two funding sources: a FCT project, JISIS: PTDC/EEATEL/104004/2008 (which started in 2010) and a new project (QREN 21634) started in October 2011. Project GEM: In April 2011, we inaugurated with great success and media coverage the successfully the Cassegrain 9-meter dish from Vertex/General Dynamics offered by Portugal Telecom. This is the only current operating radiotelescope in Portugal to be installed and operate in the radio/microwave sky surveys for space science surveys. A public demonstration was carried. This constitutes a major achievement nationally. The international Galactic Emission Mapping project aims to map and characterize the polarization field of the Milky Way. In Portugal it will map the sky polarized emission of the Northern Hemisphere in C-band and provide templates for map calibration and foreground control of microwave space data to be provided by ESA Planck Surveyor mission and later missions. The design of the C-band cross complex correlator was fully tested and published for filed operation at the antenna as part of its full digital back-end using a lowcost Field Programmable Gate Array without compromising its performance relation. This new digital backend comprises a base-band complex cross-correlator outputting the four Stokes parameters of the incoming polarized radiation. The publication describes the design and implementation of the complex correlator using the FPGA and the dedicated digitizers at each receiver arm, detailing the method applied at the several algorithm stages. This correlator is suitable for large sky area polarization continuum surveys. Project PrepSKA: We developed a full study on the Digital Data Back Haul for the Square Kilometer Array the same time respond to cost issues of mass production of important components for the Square Kilometer Array. This study had a full time engineer, funded at 100% by IT, as part of our activities and duties in PrepSKA Signal Transport 295 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES and Networking. The study analyses and classifies the network topology and technologies of SKA up to 100Gb/sec technology. This study was presented at a Concept Design Review, in Manchester, June 2011 and approved by an International Panel of experts. Collaboration with Martifer Solar and EnergyIn - The national Pole on Sustainable Energy Systems towards the greening of the SKA project. A FP7 proposal with the Spanish and Dutch industry was submitted on this subject to provide a testbed solution for the SKA prototypes in Moura. Participation in the ESA Cosmic Vision 2015-2025 proposal for a 4th generation satellite mission - COrE - aiming a careful measurement of the tiny polarization of the Cosmic Microwave Background in the band 45-220 GHz, using the GEM project as a clone for foreground and lowfrequency radio noise subtraction. COrE will map the polarization of the microwave sky with such a high precision, a factor at about 50 better than what Planck can achieve. COrE will provide maps of the microwave sky in 15 frequency bands, ranging from 45 GHz to 795 GHz, with an angular resolution ranging from 23 arcmin (45 GHz) and 1.3 arcmin (795 GHz) and sensitivities roughly 10{30 times better than PLANCK (depending on the frequency channel). The COrE mission will lead to breakthrough science in a wide range of areas, ranging from primordial cosmology to galactic and extragalactic science. A White Paper (90 pages) was published summarizing the science and spacecraft design. Following the May Conferences on ICT and Radioastronomy, we hold at IT a Delta Concept Design Review on the SKA Signal Transport and Network (STaN). In partnership with the Optical Communication we were responsible for the introduction of 100Gbit/sec technology considerations on the SKA Digital Data Back Haul design and its impact on sensor networking having released the results on a international SKA report (co-supervision of an engineer). This was presented in June 2011 at the SKA STaN Concept Design Review held in Manchester for an International Evaluation Panel of experts selected by the SKA project and Funding Agencies within the project. The results were publicly displayed in December 2011 (Netherlands) having solved the IO subsystem and networking of 296 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES dense sensor Aperture Array systems (AAVP 2011 Conferences, Dwingelloo). A summary of this work was awarded the Best Poster at the Research day of University of Aveiro. Organization of the conference “The Growing Demands on Connectivity and Information Processing in Radio Astronomy from VLBI to the SKA” joining the Square Kilometer Array (SKA) and Nexpres projects. This conference was organized by the joint collaboration of the Instituto de Telecomunicações – Aveiro, Universidade de Aveiro and TICE. This event focused on research convergence aspects common to both Space Science and Technology and ICT domains. 4.4.3.10 Integrated Circuits - Lx The Integrated Circuits Group (ICG), IT-Lisbon, research activity in 2011 lead to the following achievements: Design of an integrated overcurrent detection system for bridge-tied load class-D audio amplifiers. A proof-of-concept implementation was designed on a 3 V, 0.18 μm CMOS technology, within a BTL output stage rated for maximum output power of 1 W. The proposed solution provides current savings of up to 38%, with a small increase in the detection time for BD modulation compared with a conventional configuration. Design of radiation hardened DC/DC converters controlled with PWM current mode control or PFM methods to be employed in the aerospace industry, 0.35 μm CMOS technology. In order to solve stability issues, the PWM switch model was applied to a multi-output forward converter. Development of a low power Digital-to-Analog converter for audio applications. The chosen oversampled Delta-Sigma converter was design in a 0.18 μm CMOS technology. The signal is upsampled with a multi stage of FIR and CIC filters to 128 times the Nyquist frequency. A third order, 4 bits Noise-shaper is used. This choice can deliver high resolution, above SNR=103dB, i.e., more than 16 effective bits. 297 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Development of an innovative solution for analog IC design automation, particularly, for circuit-level optimal sizing. The proposed system, FUGA, implements a new design automation strategy based on a single-objective genetic algorithm kernel combined with fuzzy logic system. The fuzzy logic system introduces design knowledge into the GA kernel providing an effective guidance, increasing the quality of the results and reducing the required number of generations to reach the desired solution. Development of an innovative solution for analog circuit-level sizing, GENOM-MO, based multi-objective optimization and Pareto optimal fronts extraction. The approach uses a modified NSGA-II algorithm in order to tackle the design problem together with NGSPICE as the evaluation engine. Development of an analog IC sizing and layout generation methodology, AIDA, in cooperation with CTS-UNINOVA and RMOM-IT. The approach uses modified NSGA-II kernels for both sizing and layout tasks using HSPICE and CALIBRE as evaluation engines. A proof-of- concept is being prepared for a state-of-the-art IC in a 0.13 μm CMOS technology. Development of a system-level sizing and behavior simulation tool for pipeline analog-to-digital converters, in cooperation with ThalesAlenia Space. 4.4.3.11 Organic Electronics - Lx In 2011, the scientific activities in Organic Electronics, foccused on the fabrication and test of organic electronic devices, including molecular wires, plastic optical fibers, organic light emitting diodes (OLEDs), organic memories, plastic photovoltaic solar cells, organic field effect transistors, and the study of physical properties of materials for organic electronics. The detailed activities included: 298 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Molecular Electronics (Molecular Wires) i) Studies on the self-assembly process of porphyrins on highly oriented pyrolitic graphite (HOPG), in particular, the first steps that anticipate the formation of fully packed monolayers. ii) Use of Conductive AFM-break junctions as a new alternative to the methods previously used to characterize the electrical properties of the molecular wires grown stepwise on HOPG. iii) Characterization of monolayers on graphite using scanning tunneling microscopy (STM) iv) Study of electrical tansport of conductive molecular wires using STM and conductive atomic force microscopy v) Theoretical calculations by quantum mechanics of the shape of Molecular wires. Plastic Optical Fibers Preparation of new fluorescent molecules to be used as dopants in plastic optical fibers and films. The photophysical properties of some of the compounds were studied at the Istituto Politecnico di Milano. This work is a follow-up of the activities developed within the EU-funded project (POLYCOM), via Instituto Superior Técnico, which ended in 2009. Organic Light Emitting Diodes (OLEDS) i) Polymer based Light-emitting diodes (OLEDs), in particular, a study on new boron-based complexes to be used as luminescent layers. ii) OLEDs were also fabricated using a set of polymers obtained via a collaboration with ISEL-Lisboa. The study of the influence of bipolar charge traps and thin oxide interlayers on LEDs performance was also continued. Organic Memories The activity on resistive nonvolatile organic memories was mainly focused on diodes based on blends of a ferroelectric polymer with a conjugated polymer. The major task has been the investigation of the appropriate conditions to form compact films from such blends solutions by spin coating. AFM was used to characterize such films. 299 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Polymer Based Photovoltaic Cells (OPVs) i) A significant effort was devoted to the synthesis of new materials and fabrication of polymer-based photovoltaic cells (OPVs). In particular, a new family of cross-linkable conjugated polymers, derived from polyhexylthiophene, was prepared. Studies were made on surface patterning of thin films, to be used in OPVs by combination with PCBM, an approach that has been previously developd for a different polymer family. OPVs were fabricated and characterized. ii) Fabrication and characterisation of organic Photovoltaic cells with (organic) active layer comprising different device arquitectures: nanostructured polymer films, blends and planar bilayers of crosslinked polymers with an electron acceptor component. These studies allowed to establish comparisons between the performance of organic active layers with nanostructured interfaces and with «conventional» architectures, such as blends or bilayers. iii) Synthesis of the copolymer with a low-bandgap conjugated polyfluorene, and with an extended absorption range, overlapping well with the solar spectrum. Biocellulose for Printed Organic Electronics i) Fabrication and characterization of organic thin film transistors using biocelullose and chitosane-based materials either as substrates or dielectrics. ii) Optimization of the conditions for inkjet printing of electronic materials, including poly(styrenesulfonate) silver, (PEDOT), poly(3,4-ethylenedioxythiophene) poly(4-vinylphenol) (PVP) and poly(9,9-diocthylfluorene-bitiophene) (F8T2). iii) Development of organic field effect transistors (OFETs) fabricated by inkjet printing using bacterial cellulose (BC) as substrate. Silver and PEDOT were used as contacts; a mixture of BC and chitosan or PVP were used as dielectric; F8T2 or pentace were used as the semiconductor material. Analysis of devices morphology (OPVs, OFETs, OLEDs) using the atomic force microscopy Atomic Force microscopy (AFM) was extensively used for the monitoring of film and devices morfologies. 300 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Physical Properties of Materials for Organic Electronics i) Study on the photophysics of luminescent polymers that are used in the fabrication of organic photovoltaic cells, and/or light-emitting diodes, or field-effect transistors prototypes, within the research group activities. This includes the investigation of the dynamics of excited states in luminescent polymers utilizing both picoseconds time resolved (at the pico-second resolution) and steady state photoluminescence measurements. ii) In collaboration with researchers of the Florida State University, Tallahassee, the coupling between Charge Density Wave ground state of conducting chains and the spin-Peierls ground state of the magneitc chains of the model (Perylene)2Pt(maleonitrileditholate)2 two-chain was further conductor investigated by proton NMR. iii) Magnetic characterisation by Electron Spin Resonance of some new compounds used as building blocks for molecular conductors. 4.4.3.12 Power Electronics – Lx Audio Power Amplifier Continuing the study and development of single stage switching audio power amplifiers. Focus on new pulse width modulators and in passive filter topologies in order to improve circuit performance. Collaboration in the development of an integrated audio power amplifier. Active Power Filters And Power Factor Compensation Continuing the work related with the optimization of filter passive components in hybrid power filters. Continuing the study, development and experimental realization of single stage power factor corrector topologies and control processes. Analysis of new high performance topologies that are based in component reduction and equal distribution of the input current by the four bridge switches. Identification of operating issues and investigation of solutions. 301 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Resonant Contactless Energy Transfer Continuing the studies involving new PWM resonant topologies, use of LLC resonant converters for contactless energy transmission. Analysis of parameters sensitivity to coils misalignment. Concretization of experimental prototype of system integration. First system tests. Switching Converters For Renewable Energy Resources Continuing the development of boost and buck-boost single stage topologies, for interface between the ac mains and a Photo Voltaic Panel. Colaboration with rmom circuits and systems group on integration in cmos technology Continuing the research, development and practical implementation of very high frequency high performance (110MHz) DC-DC converters in CMOS technology for power management RF-CMOS, “System On a Chip (SoC)”. Achievement of new design methodologies of QSW converters for Soc). Colaboration with inesc Continuing the development and study of techniques for achieving high performance integrated DC-DC converters. Development of an integrated audio power amplifier based in the conception of new modulation techniques. 4.4.3.13 Power Systems – Co Fault diagnosis of aluminum electrolytic capacitors The development of simple, precise and cheap fault diagnostic techniques that can evaluate the capacitor condition is essential to avoid unexpected breakdowns in different electronic equipment. Aluminum electrolytic capacitors are one of the most common capacitors in electronics due to their excellent characteristics, like very 302 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES high volumetric efficiency, small price and a very wide range of voltage and capacitance ratings. Unfortunately, due to their high losses, the lifespan is short. These capacitors are considered one of the most vulnerable elements of switch mode power supplies (SMPS), uninterruptible power supplies (UPS) and adjustable speed drives (ASD). The Study of Aluminum electrolytic capacitors aging process The development of precise fault diagnosis for aluminum electrolytic capacitors requires the knowledge of capacitors aging process. This study is essential to predict the capacitors aging mechanism during its operation. In many applications, the stoppage of the equipment is not always possible, so the prediction of faults is essential to avoid unexpected breakdowns. Behavior of a Three-Phase Induction Motor Fed by a Fault Tolerant Multilevel Inverter Nowadays energy efficiency is an issue of vital importance for the society and for industry in particular. That is why the losses of an induction machine should be reduced, either in normal or faulty operating mode. For this purpose a 2D finite element model to study the induction machine behavior under normal and faulty conditions was developed. Machine faults like airgap eccentricity, stator winding shortcircuit, broken rotor bars were considered. These models allow also to study the thermal behavior of the machine under these faulty conditions. Fault Tolerant Cascade Multilevel Inverter for Electric Vehicle Applications A state of the art about fault diagnosis methods that can be used in a Cascade Multilevel Inverter was obtained. The mathematical model developed for the power converter allows to compensate an opencircuit failure in a power semiconductor. Based on the reconfiguration of the control strategy, the converter will feed electrical machine with a 303 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES balanced line voltage. Simulation and experimental results were obtained. Transformerless topologies for railway train power supply The purpose of this work was to analyze the operation of a singlephase multilevel rectifier, based on cascaded H-bridges in order to replace the power transformer in electric railway traction applications. In a first stage, an overview on existing transformerless topologies for electric railway traction applications and their main features was investigated. Then a drive description and a mathematical model for simulation purposes were developed for a multilevel topology based on cascaded H-bridges. Several simulation and experimental tests were performed and the results were compared with a conventional diode rectifier for operations under normal and faulty conditions. Performance of three-phase induction motor with asymmetrical supply The aim of this work was to investigate the performance of a threephase induction motor fed by an asymmetrical sinusoidal supply voltage. For this purpose, a three-phase power source was developed, having the direct and inverse voltage components, both simultaneously controlled. This voltage source allows to feed the machine with different levels of unbalance voltages and, therefore, the derating of a three-phase induction motor could be analyzed. All machine derating tests were accomplished for the same nominal motor temperature variation. Several experimental tests were conducted in agreement with NEMA rules. Fault Diagnosis in High Power drives based on Multilevel Converters The developed work comprised an investigation on modulation techniques, suitable to be used on a NPC multilevel inverter. The SVPWM modulation technique was adopted to be used in this work. Several simulation and experimental tests were accomplished in order 304 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES to select the most appropriated switching frequency under normal operating conditions. Given that this multilevel inverter has more power semiconductors than the traditional two level inverter, methods of fault diagnostic and fault tolerant control strategies were investigated in order to be implemented in the converter and thus increase their reliability. Several diagnostic methods based on voltage and current measurements were analyzed, especially those based in the Park’s Vector theory. Experimental and simulation tests were conducted in order to evaluate their efficiency. Electronic ballasts for fluorescent lamps A research and development on new control techniques for electronic ballasts based on magnetic regulators were accomplished. The lighting industry is a global, multibillion industry, with even more money spent on the energy consumption of these light sources. With energy conservation concerns becoming increasingly high, electronic ballast consumption is expected to be stronger. A number of factors are contributing to this growth rate, including government regulations, lower prices, innovative technologies and energy efficiency. It is intended with this work to develop new topologies and technologies for electronic ballasts with special focus on dimming and efficiency. Good simulation and experimental results were already achieved. Diagnosis of faults in induction motors Eccentricity faults in induction motors are very common. Typically they can result from manufacturing defects such as rotor unbalance and from assembling conditions where the machine shaft is subjected to uneven mechanical efforts. Hence, it is intended to develop on-line fault diagnostic methods that can effectively detect different types of these faults, namely static and dynamic eccentricity, and evaluate the severity level of each one. Although rotor broken bars do not initially cause an induction motor to fail, there can be serious secondary effects. The fault mechanism can result in high current levels and broken parts of the bar hitting the end winding or stator core of a high voltage motor at a high velocity. This 305 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES can cause serious mechanical damage to the insulation and a consequential winding failure may follow, resulting in a costly repair and lost production. Considering this, in this topic is intended to develop diagnostic techniques for the detection of rotor broken bars in induction motors, which also allow to evaluate its severity level. Approximately 30% of all motor faults are caused by failure of motor winding due to insulation problems. The majority of induction motor winding failures is gradually from lower short-circuits current to higher level and finally broken. Taking this into account, this topic is focused on the development of diagnostic techniques that allow to distinguish short-circuit faults in the windings of three phase induction motors. Different numbers of short-circuits turns are considered in order to simulate distinct severity levels and to correct evaluate them. Diagnosis of rotor and core faults in motors coupled to timevarying loads Induction motors are nowadays used in a wide range of industrial applications. Many of these machines are coupled to time-varying loads which increases the difficulty of faults detection. For this reason, it is important the development of diagnostic methods for these specific working conditions that can lead to an improvement of the reliability of these applications. Therefore, the main objective of this research is the development of diagnostic methods able to diagnose induction motor faults specially the ones related with the rotor bars and magnetic circuit. Taking into account that induction machines are very often supplied by power electronic converters, new fault diagnosis methods have been investigate in order to detect and locate faults an machines operating in closed-loop. Modelling, analysis and fault diagnosis in three-phase power transformers Power transformers are critical components in production, transportation and distribution systems of electrical energy. The occurrence of a fault in a transformer can thus result in significant downtime, with the associated outage and loss of revenue. 306 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Consequently, there is a huge demand for the development of diagnostic techniques that can be applied for the on-line diagnosis of faults in the most critical elements of a transformer, including the windings and core. In this context, a new diagnostic method has been developed for the detection of faults in such transformer components. A simulation model was implemented to study such faults, both in core-type and shell-type transformers, and experimental tests were also performed with the same aim. On-site tests were successfully conducted at a power generation plant in transformers rated 60 MVA, 10 kV/ 240 kV, hence demonstrating the usefulness and applicability of the diagnostic tool developed. Validation of the models of the components previously developed (PV, Wind, battery and DC/DC DC/AC converters) In the previous years of the research programme, models were developed to simulate the behavior of PV, Wind, battery and converters. The models have been designed to be as general as possible taking both design parameters and specific component characteristics obtained from manufacturers or from experiments into account. Each model is a self-contained module which can stand on its own, and is fully documented with respect to usage, governing equations and reference material. A validation of each of the implemented mathematical models was performed by an interactive analysis and comparison between simulation results and data from literature. Simulation of Photovoltaic Cells on a Generic Surface Geometry: The model of the Photovoltaic Generator has been improved by adding an innovative feature in order to simulate generic surface geometries. This new feature allows to investigate and simulate the behavior of a Photovoltaic Generator to be installed on a generic surface considering any kind of surfaces, also curved and moving ones. The realized model has been validated comparing various commercial solar panels. The developed model is very versatile and can be used to analyze the possibility to exploit various available surfaces in order to produce photovoltaic energy in many different applications. 307 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Measurement campaign on hybrid PV-Wind plant: Thanks to the availability of a real PV-Wind plant for telecom applications provided by an Italian company it has been possible to validate the developed models through a measurements campaign and experimental tests. Based on the developed models the PV-Wind plant has been first simulated in different operating conditions and results obtained from simulations were then compared with actual data measured on field. The possibility of having a real system and real experimental data has made it possible to refine the developed models and to transform them into a real operational design tool. Identification of condition monitoring, diagnostic techniques and advanced control techniques and methods to identify failures or potential failures in the components of a Wind System: A deep study of the various control strategies has continued to model and describe the interactions between components and to manage the energy flows. The specific study and analysis of condition monitoring and diagnostic techniques for a WIND SAPS also started to develop advanced control techniques to identify failures or potential failures in the wind generator. The obtained results will be used to identify a suitable interface taking into account reliability, availability, condition monitoring and remote diagnostics together with fault tolerance. Energy storage devices: Experimental results from the test plant have been used also to deeply investigate the behavior of energy storage devices. The model of the battery developed in the first year has been improved with a new analytical model. This new feature of the model uses a data driven procedure based on a genetic algorithm to derive a few quantities of interest which are then compared with the corresponding measured ones. Other research topics: As a result of the scientific interests of the researcher, a parallel research activity has been carried out to design and implement a novel instrumentation system for the detection of small biological currents. A current acquisition system, a non invasive probe and a software tool have been realized. Even if these research topics are not related with the objectives of the FCT research grant, they represent an interesting and challenging subject that give an 308 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES important and meaningful contribution to the student’s scientific background. Energy management of hybrid multigeneration plant powering TLC systems Tri-Generation represents a competitive choice with respect to the adoption of conventional methods for supplying power and cooling to loads demanding different energy carriers. The configuration objects of investigation takes advantage of the availability of natural sources such as sun and wind through the insertion in the prime mover group of a wind generator and Photovoltaic and thermal panels to generate electricity and hot water. The integration of renewable energy sources to fossil fuelled prime movers in a HTS increases the complexity of the overall management of the system. In this light, the research has been focused on the development of a power management strategy based on the implementation of neural network techniques for a trigeneration system aimed at feeding a TLC load. The conclusions of the study confirms the necessity to devise efficient control strategies in order not to incur in operational mismanagement of the trigeneration plant that would result in economic losses related to excessive gasoline consumption and service life reduction. Optimization techniques applied on hybrid multigeneration plants powering TLC systems Multigeneration power systems placed in area not connected to fuel networks provide a strong incentive to the adoption of optimization techniques aimed at maximising the economic benefits of this kind of plants. Tri-generation systems can provide high payoffs in terms of carbon emission and energy cost reductions but require significant investments. A variety of variables in the expression of capital and operative costs has been considered and an optimization problem formulated and solved based on hierarchical optimization algorithms. Simulations have been carried out with dedicated software to verify the effectiveness of the proposed method. Trough this investigation the influence of the main parameters affecting the economic planning of a trigeneration system has been deduced. 309 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Recommendations and further conclusions are expected when more realistic data will be available. Multiscenario Economic Analysis of trigeneration plants: The aim of the study has been to develop an investigation into the main variables influencing the performances and thus the cost of the electricity (kWhe) generated in the case a trigeneration plant is powered by a Concentrated Photovoltaic and Thermal (CPVT) equipment or by an Internal Combustion Engine (ICE). The analysis has been carried out by considering the influence of the level of solar radiation, the solar concentrator initial capital cost and the quality of the technology characterizing the separate production. External parameters such as the price unit of subsidies granted for polluting emission reduction and fuel saving achievement are thus considered and varied according to discrete values. The results provide good prospects about the potential use of solar concentrators in cogeneration applications in medium or high solar radiation area. It has been demonstrated that the cost of the kWhe can attain zero values in several combinations of appropriate financial aids and within the subsidy prices contemplated for both the CPVT and the ICE. 4.4.3.14 Instrumentation and Measurement Scope and Objectives: The Instrumentation and Measurement Group works in the broad domain of Metrology. In 2011 the main topics addressed were: Analogue-to-digital and digital-to-analogue conversion; Measurement of electrical quantities; Non-destructive testing Sensors and transducers; Signal acquisition and automated and telemetric measuring systems; Signal processing applied to sensors and instrumentation. Swarms robotics 310 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES A detailed report of the activity in each topic follows. Analogue-to-digital and digital-to-analogue conversion Continuation of the study of the uncertainty of analogue to digital converter test methods, namely of the Histogram Test Method, the Random Noise Test Method and the Sine Fitting Test Method. Consideration of different non-ideal effects like additive noise, jitter, phase noise and harmonic distortion. Measurement of electrical quantities Implementation of a PC based three-phase power quality analyser using multi-harmonic sine-fitting, morphological operations for event detection and classification. Non-destructive testing The research work during 2011 was related with two I.T. internal projects: CLASSE and OMeGA. CLASSE ended in 2011 and aimed at classifying defects inside conductive non-magnetic plates using the eddy current method. OMeGA started in 2011 with the objective of detecting defects inside metallic parts, but using ultrasonic methods optically excited. Work on the area of non-destructive testing using eddy currents went on and the application was extended to determine thicknesses. Two types of excitation currents have been used: Pulsed Eddy currents (PEC) and sinusoidal currents. The use of algorithms in the area of digital signal processing to process and interpret data provided by the sensors used in the laboratory for eddy current testing proved to be very effective to overcome the poor performance of some of these sensors. Significant improvements in the crack position accuracy and resolution were obtained. Some of the crack characteristics like length and orientation are now obtained using the measurement system developed at the Instrumentation and Measurement Laboratory and inversion algorithms based on the de- 311 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES convolution in the discrete Fourier transform domain with Tikhonov regularization. Novel low-cost handheld instruments to detect cracks and other defects in a plate of conductive material have been implemented and the prototypes are working properly. One of these instruments uses a planar excitation coil with a giant magneto-resistor as the sensing element and the visualization of the defect can be depicted in real-time on a LCD display. Besides the output voltage with the sensor location can be transmitted to a PC for further processing. The other instrument is able to measure both amplitude phase of the sensor output voltage (corresponding to the secondary magnetic field with the crack information) and transmitted to the PC wirelessly to be depicted as phasors. A new non-destructive testing method is being tested. The conductive material being tested moves in a time constant magnetic field and due to the movement the induced currents in the conductor generate a secondary magnetic field. When the current flow pattern is disturbed by the existence of defects, variations of the magnetic field occur and information about the defects can be assessed by measuring the magnetic field. As far as the authors know this is an original method, that has not yet it been reported in the literature, and presents undoubted advantages when the material to be tested is in motion relative to the test sensor (like when inspecting a rail track with a bogie). Sensors and transducers Development of the measurement setup for liquid viscosity based in impedance measurements and impedance spectroscopy for sensor characterization. Progress in the interoperability of marine observatories has been carried out. Sensors with analogue outputs will have their connectivity augmented with an embedded Transducer Electronic Data Sheet, which contains technical information to identify the sensor. Data will be formatted according to IEEE 1451.0 standard and interoperability in 312 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES OBSEA and MBARI observatories is already a fact concerning some equipment issues. Some work based on the Precise Time Synchronization Standard, IEEE 1588 has already started. Ocean observatories are an important technological resource that can provide knowledge to forecast environment changes or to ocean research. Sensor data is collected at different world locations and large streams of data must be correlated with other events or data sources to study either long term tendencies or singular events. To allow this analysis data in a location context must be time-stamped. For many observations a low time-stamp precision is adequate but, for other observations, millisecond precision like level hydrophones is needed. and Now seismometers, the project the and implementation of a “GPS virtual pulse-per-second signal generator” to be installed at OBSEA observatory to timestamp sensor data in a submillisecond range is being carried out. OBSEA is a cabled seafloor observatory 4 km offshore Vilanova i la Geltru (Barcelona, Stain) at 20 m water depth, interconnected to the coast by an energy and communication mixed cable. Static and dynamic characterization of sensors and measurement system (polarography, heavy metals detectors, turbidity, pH and conductivity sensors). One paper was presented in one international conference and an extended version was submitted for publication in Instrumentation and Measurement review. Signal acquisition and automated and telemetric measuring systems A first prototype of a stereo-vision system using digital cameras to measure cloud height, wind speed and direction at cloud level was developed. The weather protection system which will allow it to run in a permanent basis was also developed. Implementation and development of I&M industrial transmission systems based on Foundation Fieldbus (FF), HART and CAN protocols. Application of the 1451 standard: implementation of a Network Capable Application Processor (NCAP) based on a XML platform. 313 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES In the domain of biomedical applications worth mentioning: TIM project A large scale 1200 GPU core direct model and inverse problem implementation of the MIT with an astonishing real-time performance. Design of a high-performance 8A@1MHz excitation PA. Design of a passive multi-frequency tank circuit for controlled impulsive magnetic field excitation. Design and implementation of ubiquitous architectures associated with cardio respiratory and dynamic activity monitoring for elderly and persons with severe restriction of mobility or during the motor rehabilitation: a smart wheelchair and a smart walker based on unified sensing solution expressed by Doppler radar (EHRuWheel FCT RIPD/APD/109639/2009 project). Design, implementation and testing of a third version of a wearable solution for vital signs and dynamic activity monitoring, pervasive computing using Android OS smart phone and web based telecare information system – (HomeTelecare IT-PT Inovação Project). Development of prototypes of physiological parameters sensing including skin conductivity measurement and 2 lead ECG using Etextile (FCT Project). Development of the first prototype of a biomedical system compatible with IEEE1451.4 using I2C. Design and implementation of a smartphone embedded software as part of human smart sensor interfacing and a web based information system associated with vital signs data management (HomeTelecare IT-PT Inovação Project). Development Component of novel Analysis for algorithms including artefact removal, the Independent Empirical Mode Decomposition combined with Principal Component Analysis, Optimized Sine Fitting algorithms to obtain accurate estimation of heart rate and respiration rate from the signals delivered by sensors embedded in a wheelchair. 314 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES A patent proposal in the arrhythmia area based on wavelet coherence algorithms was registered in September 2011. Truly capacitive bio-potential measurements enabling ECGs to be acquired at distances greater than 10 cm. An EIT implementation for plethysmographic characterization of bladder. In the domain of environmental applications: Multiprocessor architecture for water quality monitoring: temperature, conductivity, turbidity. Research work in the area of air quality monitoring using ZigBee wireless sensor network. Signal processing applied to sensors and instrumentation A procedure based on evolutionary algorithms (genetic and gene expression programming) to identify the equivalent impedance network of a sensor was developed. Improvements to the sine-fitting algorithm when used in floating point systems with 32 bit such as DSPs have been proposed. An algorithm for the early fault detection in the case of rotor eccentricity in induction machines has been developed. Implementation of multi-harmonic sine-fitting algorithms in a multicore processor for efficient estimation of the harmonic amplitudes, phase and fundamental frequency. Use of ANNs and Gaussian feature extraction algorithm for defect characterization in welded joints with non-destructive testing. Development instrumentation of and advanced signal measurements processing techniques for applications (non-linear A/D converters, calibration and auto-calibration procedures applied to different measurement systems, advanced signal processing technique). 315 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Swarm robotics Demonstration of how a novel infrared range and bearing communication system can facilitate recruitment and guidance-based self-assembly in groups and swarms of autonomous robots. Finalized and submitted a study of how firefly-inspired communication and synchronization can provide a swarm of one hundred simulated robots with fault detection and fault accommodation capabilities in a foraging task. Developed middleware for the dynamic distribution of computational tasks on regular workstations. Studied if robots can be evolved to cooperate and communicate with pre-programmed robots. In 2011, the following services to external entities were rendered: Collaboration with Instituto Tecnológico e Nuclear (ITN) in automating the operation of their ion implanter. Development and implementation of an instrumentation network for broadband RF spectrum monitoring for ANACOM. Developing and implementation of extended distributed RF spectrum occupancy measurement system using client server architecture Development of server application software including RF receiver remote control, server local database, audio streaming server application based on VLC, secure data file transfer application base on WinSCP,- testing and validation. Design and implementation of client side application including multiserver application control, connection fail alarm generation, SSH file transfer control, spectrum occupancy data analysis, audio streaming control based on developed VLC scripts. – testing and validation. 316 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4.4 Runing and Concluded Projects Overview Funding Agency Number ADI 1 EU, FP7 2 FCT, RIPD 1 FCT/PTDC 15 IEEE, TC-25 1 INRIA 1 Intellab 1 IPS 1 IT 6 Ministério da Ciência e Inovação Espanhol 1 PT-Inovação 1 Thales Alenia Space 1 Table 29 – Number of active projects running in the Basic Sciences and Enabling Technologies Area in 2011 317 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Activity in projects Acron / Ref Title AIDA AIDA – Automated P-Cell Generation based on Multi-Objective Optimization and Pareto Optimal Front Circuit Level Characterization Funding IT Descript. The AIDA project addresses the problem of analog and mixed-signal (AMS) IC design automation. It proposes an innovative methodology for the reuse and retargeting of circuit-level analog blocks by putting together both previous work from the research teams and in deep knowledge from researchers in the area of Analog IC Design, Electronic Design Automation (EDA), Evolutionary Computation. Acron / Ref AISMAd Title AISMAD – Advanced Integrated Switched-Mode Audio Drivers Funding IT Descript. The AISMAD project aims to implement an integrated circuit to be used in high fidelity portable applications, with outputs suited both for headsets and/or loudspeakers. The project targets are to fabricate and characterize a Class-D amplifier IC, explore and expand the test-chip multi-functionality of operation modes, and develop, design and test possible approaches to increase the maximum output power 318 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref AQA/Sado Title Water Quality Assessment in Sado Estuary Funding Instituto Politécnico de Setúbal Descript. Research activities related with water quality assessment and its impact in ecosystems, particularly dolphins life. Acron / Ref BC Title Biocellelose for Printed Organic Electronics Funding FCT/PTDC Descript. The ultimate goal of the project is to demonstrate the possibility and advantage of using bacterial cellulose, also called biocellulose (BC), and BC derivatives, as substrate, as dielectric and as electrically active layer for inkjet printed organic electronics. Acron / Ref BPMeas Title Blood Pressure Measurement Funding IEEE, TC-25 Descript. The project objective is to develop models and measurement systemas associated with Blood Pressure Measurement through a international participation of IEEE scientist from different universities and research institutions. Acron / Ref CRACK Title Flaw Imaging in Metals by Contactless Conductivity Funding FCT/PTDC Descript. The measuring principle is based on the phenomenon whereby the 319 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES impedance of a coil generating a time-varying magnetic field changes in the presence of a conductive material as eddy currents are induced in the material. Therefore the idea of a contactless electrical conductivity imaging system (CECIS) is based on a sensor composed of two coils. One of the coils, designated the transmitter coil, is driven by an alternating current and generates an oscillating magnetic field that induces currents inside the object to be tested. These induced currents are related to the conductivity distribution of the body. Another coil, the receiver coil, measures the total magnetic field. One component of the magnetic field is related to the primary imposed currents and the other component is related to the induced eddy currents. As the signal originated from deeper voxel significantly attenuates before it reaches the receiving coil the information gets easily corrupted by measurement noise. By incorporating into the design a real time digital signal processor able to perform advanced signal processing techniques it is possible to increase significantly the range of the sensor. Two solutions are envisaged to accumulate data either by relocating the probe several times using a XY scanning mechanism or by using an array of sensors, i. e., several probes in the vicinity of the object to be tested. The mathematical basis of this methodology is developed in two parts. In the first part, the physics of the induction system is simulated in the forward problem either using a numerical method like the finite element method (FEM) or an artificial intelligent technique (ANN). The simulated system is used to preview the correspondence between first order variations in the secondary magnetic field to conductive perturbations in the conductive body. A set of equations in the discrete form can be formulated: Sx=b, where x is the unknown conductivity perturbation vector, b is the magnetic field measurement vector and S is the sensitivity matrix. The second part of this study is the formulation of the inverse relation of this correspondence in order to reconstruct the conductivity images for a three dimensional sample object: b=S x + y, where y represents unknown measurement noise present in the real scenario. Since the signal from a deeper voxel is smaller than 320 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES surface voxel, measurement noise corrupts more the information from deeper voxels. However, the relation between the magnetic measurements and the conductivity distribution is nonlinear. Thus, one way to estimate the solution is to linearize the forward problem around an initial conductivity distribution and update the conductivity distribution using a suitable algorithm by comparing the calculated fields with the measurements. Several algorithms can be used to minimize the norm of ||S x - b|| when solving for x. These algorithms must be investigated in order to select the one that provides the best performance for the problem to be evaluated. The mathematical relation between the conductivity distribution and the measurements is the backbone of the imaging algorithm. Acron / Ref Dendrímeros Title Just in Time Dendrimers Funding FCT/PTDC Descript. The work plan on this project envisages the design, preparation and performance evaluation of useful biodegradable and biocompatible dendrimers with targeted physical and chemical properties for two defined applications: (i) in vivo smart “pH-driven― efficient drug nanocarriers and (ii) new chemical sensors. The dendrimers preparation will be performed using an economic, clean, and simple, one-pot procedure, where CO2 is both used as a solvent and as a reagent (C1 feedstock). To exclude dendrimers cytotoxicity and enhance their biodegradability urea linkages will be incorporated in the dendrimer architecture.Another interesting and cutting edge issue in dendrimer chemistry is that these nanometer-sized vehicles will be incorporated within layer-bylayer (LBL) films using alternating hydrogen bond interactions as the driving force for assembly, thus enabling the incorporation of drugs and pH-sensitive release. The unique architectural features of dendrimers led to fairly recent developments in the field of chemical sensing. This almost 321 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES unexplored potential opens-up for exciting opportunities that we will systematically explore: i) using the dendrimers library without endcapping for explosives detection ii) using perylene end-capped dendrimers for detection of metal cations. Acron / Ref Title EECCO Energy EffiCient Current-mode techniques for free-space Optical front-end receivers Funding FCT/PTDC Descript. Desenho de receptores ópticos de espaço livre baseados em técnicas de modo de corrente com elevada eficiência energética Acron / Ref EHR-Wheel Title Electronic Health Records for Wheelchairs Users Funding FCT/PTDC Descript. Developing unobtrusive monitoring of electrocardiogram and respiratory activities using sensors installed in household furniture in everyday life completed with RFID elements to provide a safe and healthy place for the elderly Developing appropriate health data and tracking data analysis tools important observations (e.g. general health and activity levels, activities of daily living (ADL). Advanced data processing for accurate cardiac and respiratory signal monitoring. 322 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref ERSATRITCOM Title Electronic Health Records for Wheelchairs Users Funding FCT/PTDC Descript. Global environmental concerns and the ever-increasing need for energy, coupled with a steady progress in renewable energy technologies are opening up new opportunities for utilization of alternative energy resources for telecommunications (TLC) applications. The equipments used in TLC have strict specific requirements in terms of type and quality of the power supply and most TLC energy systems present a special energy supply challenge, requiring reliable, unattended power system operation in locations where grid power is not available. For these applications, interest in stand-alone power systems (SAPS) is increasing and the value of alternative power solutions is becoming more apparent. Considering this, the main general objectives of this research program are: • The investigation of the new available technologies for the generation and storage of energy for TLC applications; • The development of a SAPS capable of self-diagnosing power converter faults and, in case of a failure occurrence, to keep its normal operation, although with a reduced performance. Acron / Ref FaulTHEV Title Fault Tolerant Electric Motor Drives Applied to Hybrid Electric Vehicle Funding FCT/PTDC Descript. Currently, with the increasing demand for environmentally friendlier and higher fuel economy vehicles, the automotive companies are focused on the development of hybrid electric vehicles (HEVs).Considering this, the main objectives of this project are focused on the development and implementation of two different electric drives based on permanent magnet synchronous motors (PMSM) and switched reluctance motors (SRM), with power 323 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES converter fault-tolerance capability, applied to HEVs. Acron / Ref HomeTelecare Title HomeTelecare Funding PT-Inovação Descript. The main objective is to implement a prototype of a system that allows non-invasive monitoring of cardiac and respiratory parameters of people living in non-hospital environments Acron / Ref Title JISIS Diamond-based surface acoustic wave devices: a reverse fabrication design Funding FCT/PTDC Descript. Design, simulation, prototyping and testing of SAW devices based on a high-temperature substrate, such as langasite, in order to obtain sensors and identifiers that can be interrogated remotely and at the same time be used in harsh and hostile environments. Acron / Ref KeMANDE Title Kernel Method Applied to Non Destructive Evaluation Funding IT Descript. Throughout the world, engineers and technicians are working together finding cracks and other anomalies to prevent expensive failures. The increasingly important role of nondestructive testing in public security and safely technology development promote new and innovative methods to be developed and already known methods do be enhanced. Eddy Current Testing (ECT) is one of the most 324 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES established nondestructive structure evaluation technique that enables defect detection and material condition monitoring with high sensitivity and reliability. Within this method the volume distribution of the material conductivity is determined by inducing eddy currents inside the conductor under test and measuring the magnetic field produced by those currents [6]. ECT is used with electrically conductive materials for the measurement of the thickness of metallic plates [7] or non-metallic coatings or metal substrates, estimation of electrical conductivity or magnetic permeability distribution, corrosion detection [8] and the determination of surface or subsurface defects [9]. However, regarding safety and economic efficiency assessment, defects are still the main concern and with the improvements on understanding the facture mechanics, the detailed geometric characterization of the cracks, still an open problem, became the target of the research in the area. One disadvantage of this type of method is related to the inevitability of well qualified and experienced technicians to perform the tests since, in spite of its implementation simplicity, data produced by eddy current based equipment are among the most complicated to interpret. These factors together motivate the project objectives: to implement new and better measurements with both novel instrumentation and embedded artificial intelligence to automate the interpretation of the various imaging data streams in order to determine surface and subsurface defects shape and size [10]. With eddy currents nondestructive evaluation, the dimensions of defects are retrieved by inversion of the measured signals. Since the physical model of the problem is often complicated and nonlinear, the inversion model is ill-posed and it’s solution always a challenge. Within this project an original strategy based on the current lines distribution is proposed. The idea is to assess the current density perturbation caused by the defects through a bidimensional map of the magnetic field components on the surface of the material to be tested, obtained experimentally. This current density can be represented as a composition of magnetic dipoles. 325 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES The field of the single magnetic field dipole will be the kernel of the transformation to be used in the inversion process. Measurements are taken using electromagnetic sensors based on giant magnetoresistive (GMR) effect. GMRs extend the application field of eddy current non destructive evaluation methods since they measure the magnetic field directly and their sensitivity is equal for all working frequencies, allowing better performance than conventional probes for low-frequency applications as, for instance, when detecting defects deep buried in multilayered structures. Besides, these sensors are far more sensitive than those used in current commercial equipment [11] and the output signal signal-tonoise ratio is high enough to apply regularization methods to extract information. It is our goal to develop a competitive automated system to be subsequently exploited and used in the industry. This project besides its technical and scientific objectives is also focused on promoting nondestructive evaluation issues to young researchers. It is a multidisciplinary field of study that embraces issues like: (1) technology development; (2) image processing and recognition; (3) modeling and algorithms. In Portugal there are very few competencies within the nondestructive testing knowledge area in spite of the abundance of industrial relevance for them and as a result Portugal is losing competitiveness in a 600 million global market. Acron / Ref LITES Title Led-based intelligent street lighting for energy saving Funding EU Descript. The main objective of the LITES project is to prove in real life experimentation that intelligent street lighting using solid-state lights LED drastically reduces energy consumption. The lighting service delivered is compliant with road classes CE2-CE5, S- and A326 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES according to the standard of EN13201 That means that our device can be installed in secondary street, commercial access, allotment, pedestrian way, cycle track. It is compliant with all electric standards for luminaires general requirements and tests as well. The core element of the solution is the dimming of the lamp depending on the environment; a set of embedded sensors measures ambient light, temperature, current, and detect motion. Output data of sensors is then processed by the embedded intelligence allowing optimum regulation of light levels. The members within the consortium have been carefully selected to cover the entire value-chain of the project and the standardisation as well. They are all convinced about the prosperous future for this technology, its significant energy saving potential up to 70 %, environmental and economical benefits and the increased level of traffic safety for the public. Acron / Ref MATRIX Title Electric Drives Based on Matrix Converters Funding FCT/PTDC Descript. The main objective of this project is to develop an electric drive, based on matrix converters, with self-diagnostic and fault-tolerant capabilities. The drive, which will rely on the use of induction motors and PMSMs, will allow to detect and locate any fault in the matrix converter. After its detection, the control system of the drive will enter in a fault-tolerant operating mode, according to which the control strategy will be modified in order to minimize the consequences of the fault and thus maintaining the system running, although with degraded performance. Besides the detection of faults in the matrix converter, and in the case of the induction motor drive, the integrated diagnostic system should also be able to detect faults in the motor, namely stator and rotor faults, bearing faults and airgap eccentricity. The drive obtained with these new features 327 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES combines the advantages of the matrix converter with the high reliability granted by the integrated and fault-tolerant diagnostic/control system. Acron / Ref MultilevelConv Title Fault Diagnosis in High Power Drives Based on Multilevel Converters Funding FCT/PTDC Descript. The aim of this research project is to investigate fault-tolerant control strategies, proper to be used in high power drives, based on multilevel topology. Simultaneously, an investigation about the performance of both power converter and induction motor, in order to optimize the drive behavior for a post-fault operation, will also be performed. Acron / Ref Title NANOPEPS Micro- and Nanopatterning of cross-linkable electro-active polymers by spin-coating Funding FCT/PTDC Descript. This project deals with the optimization of organic electronic devices, namely photovoltaic cells (PV), light-emitting diodes (LEDs) and optical chemical sensors, through the provement of the organic film morphology and functionality using a low-cost, simple, and innovative method of patterning at the submicrometric or the nanoscale. Our group was recently pioneer in exploring a simple and low-cost method to prepare patterned films at the submicrometric scale using cross-linkable electroluminescent polymers also synthesised in our group. In principle, the method should be scalable to large substrates and to a broad range of different classes of conjugated polymers. Basically, it consists on controlling the phase separation 328 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES occurring during the deposition of a solution containing a crosslinkable electro-active polymer and an «inert» polymer, on a substrate, by spin coating. The main original characteritsic of this approach is that the cross-linked film is resistant against dissolution, enabling that multilayer devices may be fabricated utilizing low cost solution techniques. This project proposes i) to synthesise new cross-linkable semiconducting polymers with chemical properties designed for specific applications; ii) to extend and to explore the patterning method to those materials to obtain film morphologies tuned for specific applications iii) to fabricate efficient devices based on such films. The target devices are: - PV cells. Semiconducting polymer based-films where electrondonor and -acceptor materials are segregated forming vertical domains (relative to the electrodes) and these are separated from less than 20 nm represent the optimal film morphology, because it minimizes losses in the charge generation and transport to the electrodes processes. By preparing adequate crosslinkable polymers and using the referred patterning method, we aim at tuning the column dimensions (of columnar films) or porous diameter (of porous films) to obtain ideal nanostructured polymer scaffolds, where the complementary component (donor or acceptor) can afterwards be deposited filling the empty spaces. The resultant arranjement of the two interpenetrating layers should approach the “ideal” morphology for OPV cells. - Optical Chemical Sensors. Fluorescent semiconducting polymers have shown an amplified response in chemosensing processes. We intend to functionalize the polymer nanopatterned film to recognise selectively a specific target molecule which acts as a fluorescence quencher, generating an optical sensor. Since nanostructures have a huge surface/volume ratio, an even higher sensitivity is expected. Examples of analytes to investigate are fluoride, cyanide, and iodide anions resultant from toxic gases, and metal ions such as Al3+, Pb 2+, and Ag+. - LEDs. The most efficient organic LEDs are based on multilayered 329 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES devices comprising both charge transport layers and emissive layers between the electrodes. Besides showing reasonable efficiencies, such values are still well below the predicted maxima. One approach for optimization, nearly unexplored so far, consists on the use of nanopatterned hole-transport layers to increase the contact area for charge transfer to the emissive layer. Also, there have been reports demonstrating higher emission efficiency in nanopatterned films, for which nanopatterning of the emissive layer represents another approach to optimize LEDs. Acron / Ref NHyMat Title SolarNHyMat - Nanostructured Hybrid Materials for Solar Cells Funding FCT/PTDC Descript. The “SolarNHyMat― project aims to foster essential progress in the performance of organic solar cells devices by covalent incorporation of acceptor molecules on the walls of mesoporous silica nanostructured materials and encapsulation of the donor polymers on the pores of those same silica materials. The key scientific objectives of the “SolarNHyMat― project will be (i) alignment of the acceptors (on the walls) and donors (on the pores), (ii) maximize the interfacial area and the donor:acceptor contact, (iii) isolation of the polymer chains into nanoscale domains leading to a confinement effect, (iv) charge stabilization conduction along individual chains with spontaneous formation of a gradedindex waveguide, and (v) circumvent oxygen interference. The expected results for the “SolarNHyMat― project taking into account the above objectives are (i) avoid phase segregation and minimize the recombination process, (ii) improve charge separation and increase carrier’s mobility, (iii) no interchain hopping events would be required, (iv) improve gain and reduce loss, and (v) enhance the long term stability 330 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref NOVO Title Non volatile polymer memories for flexible electronics Funding FCT/PTDC Descript. This project aims to investigate the operating mechanism and the role of phase separation details of non-volatile resistive polymer memories based on blends of conjugated and ferroelectric polymer2. Acron / Ref OMeGA Title Optical Measurement of Guided Acoustic Waves in Solid Media Funding IT Descript. The coupling of ultrasound waves into solid media on a material surface point followed by the wave detection on another point can be used to infer about the wave propagation conditions. The wave suffers reflections on the material boundaries, but is attenuated or diffracted on existing material discontinuities. It is possible to obtain valuable information about material defects by an accurate analysis of the wave propagation conditions. In this project we intend to apply the ultrasound method to establish an experimental method of defects detection inside solid structures whose structural health monitoring is of great importance. This is the case of the aircraft structures, the liquid or gas pipelines in nuclear power plants or other containers subject to high pressures. To our knowledge, the most important inspection task at this time is the assessment of possible internal defects inside the stainless steel containers of the International Thermonuclear Experimental Reactor (ITER). 331 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref PQW Title The Physics of Quantum Walks Funding IT Descript. In this project we will focus on bringing the theory nearer to the experiment, by studying open systems by means of non-unitary quantum walks, which are usually easier to implement, than their unitary counterparts Acron / Ref Prep-SKA Title A Preparatory Phase proposal for the Square Kilometer Array Funding EU, FP7 Descript. The baseline design for the SKA is an interferometer array capable of imaging the radio sky at frequencies from ~70 MHz to ~25 GHz, and providing an all-sky monitoring capability at frequencies below 1 GHz. The telescope is to be built in three phases, and will be able to carry out significant scientific observations as it is being built. The concept involves parabolic dishes with innovative feeds to maximize a combination of spatial and frequency coverage; at lower frequencies phased arrays can become cost-effective and offer new operational capabilities. Technological innovation, closely paralleling commercial IT developments, is the key to the design concepts under investigation and to the target cost of 1.5 billion Euro. Data transport rates are likely to be in the range of 100 Giga-bits/sec to Tera-bits/sec, with Petaflop capacity required for the central processor. Much of the required technology is currently being developed in the course of specific design studies (including the EC funded FP6 SKA Design Study, SKADS) and the construction of several SKA Pathfinder instruments around the world. The final step of integrating the accumulated R&D knowledge into a detailed system design for the SKA, is planned to take place from 2008 to 2011, with the first three years being under the aegis of PrepSKA. 332 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref Title SPEED Low Power Ultra-High Speed Analogue-to-Digital Converter for Ultra-Wideband Wireless Communications Funding Descript. FCT/PTDC The major goal of this project is to design, integrate in a 90nm CMOS technology and experimentally evaluate a calibration-free 2channel time-interleaved 6-bit 1GS/s CMOS Pipeline ADC with an EE better than 0.2-0.3 pJ per conversion step and at the same time achieving a very low die area. Many novel techniques will be addressed to reach such goal such as, intensive use of passive structures, amplifier sharing, simple amplifier topology and exhaustive circuit optimization. A second aim of the project will be to include, on-chip, an efficient solution for providing built-in selftesting capability. Acron / Ref Title PRODUTECH-PSI-Act2 PRODUTECH-PSI - Activity 2 - NOVOS PRODUTOS E SERVIÇOS PARA A INDÚSTRIA TRANSFORMADORA Funding ADI Descript. The aim of this project is the development and implementation of innovative methodologies availability of production for the analysis equipment. of reliability The existence of and these methods will allow more effective management, which leads to an improvement in the productivity of the production system. 333 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Acron / Ref SCALES Title SCALES - Simulation Tool for Pipeline ADCs Funding Thales Alenia Space Descript. Developement of a simulation tool do do architecture study of an integrated Analog-to-Digital Converter Acron / Ref SearchCol Title SearchCol: Meta-heuristic Search by Column generation Funding FCT/PTDC Descript. Many relevant practical problems can be modeled as combinatorial optimization problems (COPs). Examples are the definition of routes for vehicles, schedules for machines, or the dimensioning of telecommunication networks. Meta-heuristics (MHs), such as tabu search or genetic algorithms, are the most successful methods in providing good-quality solutions in reasonable amounts of time for large-size instances of several COPs. The aim of this project is to propose a new MH, entitled Search by Column generation (SearchCol), for COPs. SearchCol algorithms will be applied in specific problems from four areas: production planning and scheduling, telecommunications, forest management, and cutting and packing. The main distinctive feature of SearchCol is that its ingredients (such as construction of solutions, neighborhood structures, or crossover operators) are based on column generation (CG). We aim at proving that a suitable search strategy (provided by the hybrid MHs framework) taking advantage of decomposition exact methods (CG) quickly leads to high-quality solutions for NP-hard COPs. The evidence is that CG provides tight lower bounds (in minimization problems) on the optimal value and that the columns belonging to the restricted master problem define a search space where high-quality solutions exist. The drawbacks of standard MHs 334 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES (the lack of ameasure of the quality of the solution obtained and the lack of a well defined stopping criterion) are overcome in SearchCol since the lower bound provided by CG is available. Acron / Ref Title TIMII Magnetic Induction Tomography - High Resolution Imaging Instrumentation Funding FCT/PTDC Descript. Develop the Magnetic Induction Tomography technology in all of its aspects which includes the Electromagnetic Direct Problem Formulation, the Image Processing Inverse Problem Resolution, the Instrumentation and the Biomedical applications. 335 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4.5 Running and Concluded Theses MSc Theses Supervisor Student Co- Supervisors Title End Date Design and implementation of a multilevel converter with fault 2/2011 tolerance, based on the cascaded Hbridge topology. Jorge Manuel Correia Amplificador Hi-Fi para Audio Portátil de Nuno Horta Frederico Cadete 3/2011 Guilherme Elevada Eficiência Bruno Miguel Jorge Manuel Correia Nuno Horta Space DCDC - II 3/2011 Tavares Silva Guilherme Jorge Manuel Correia Nuno Horta Carla Duarte EVOLUTION - IC Design Automation 4/2011 Guilherme Utilização de um Rato Óptico como Artur Lopes Tiago Jorge Helena Ramos Dispositivo de Posicionamento em 4/2011 Ribeiro Rocha Testes com Correntes de Foucault Pedro Ramos Pedro Xavier DSP based power quality analyzer 5/2011 Vital Signs monitoring and localization Octavian David Vinhas José Dias Pereira using weelchair and embedded sensors 5/2011 Postolache and RFID for wheelchairs'users Contactless Battery Charger for André Brandão Beatriz Borges Hugo Marques Supplying Wireless Data Transmission 6/2011 Martins Electronic Equipment Diagnosis of faults in electric drives Marco André de Sérgio Cruz based on three-phase induction motors 7/2011 Jesus Lopes operating in closed-loop Maria Celeste Licínio Jorge Finite Topological Spaces 7/2011 Gouveia Oliveira Maurício Maria da Maria Celeste Conceição Silva On the Irreducibility of Polynomials 7/2011 Gouveia Saraiva Tiago José Luis Nero Alves,Dinis Posicionamento por radiofrequência Luis Nero Alves Ramos Salvador 7/2011 Magalhães Santos utilizando estações terrestres de Andrade André Manuel Rui Miguel Belo Transformerless topologies for railway dos Santos Leal Toste 7/2011 train power supply Mendes Ferreira Eduardo de Jennifer Matos Caracterização e Modelização de Díodos David Gacio 9/2011 Sousa Saraiva da Cruz Led @Portugal: Portal integrado de turismo Luís Miguel Tiago do Bem com sistema de recomendações 10/2011 Martins Nunes baseado em lógica vaga António Javier Rodriguez Cardoso,André Desempenho do Motor de Indução António Cardoso 10/2011 Rey Manuel dos Santos Trifásico com Alimentação Assimétrica Mendes João Silva Jorge Manuel Correia AUDIO II: Amplificador Hi-Fi para Audio Nuno Horta 11/2011 Carvalho Guilherme Portátil de Elevada Eficiência Autonomous Impedance Measurement Pedro Ramos Ricardo Correia 11/2011 System based on dsPIC David Filipe Correia João Carvalho CMOS Audio DAC 11/2011 Guilherme Function Generator powered and Pedro Ramos André Leitão 11/2011 controlled by USB Francisco Mobile Air Quality Measurement David Quelhas 11/2011 Alegria Platform André Manuel dos Santos Mendes Rui Pedro Santos Ventura 336 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor João Manuel Patrício Student Co- Supervisors Title Modelação Matemática e Optimização de um Processo de Reciclagem de Óleos Lubrificantes Usados Joana Gonçalves Jorge Manuel Correia Space DCDC - III Guilherme Pedro Ramos Ricardo Silva USB Data Acquisition Board Elton Luis Nero Alves,José Amplificadores de Transimpedância Luis Nero Alves Nascimento Lima Cura com Elevada Eficiência Energética Automation of a Plasma Cutting Robotic Fernando Lopes Carlos Tavares Inácio Fonseca Cell Francisco Miguel Ângelo Moisés Simões Batery Managment System for Formula Alegria Silva Guedes Piedade Student Manuel Fernando Marco Alexandre Controlo de um Helicóptero Martins de Antunes Mendes Barros Anabela Aníbal Manuel de Fiber based Access Networks: Planning Amaro Sousa Sequeira Damas Oliveira Duarte and Cost Optimization Jorge Ricardo FUNDAMENTAL I - Resultados das Rui Neves Rodrigues Nuno Horta Empresas Fonseca Oleksandr Rui Neves Nuno Horta FUNDAMENTAL II - Notícias Yefimochkin Domingos da Large databases management of space Diogo Pinheiro Rui L. Aguiar Silva Barbosa missions - the Healpix Viewer Manuel Carlos Joaquim Manuel Fernando Ferreira,Manuel Módulo de Potência para Interface com Ruivo de Oliveira Martins de Fernando Martins de a Rede Eléctrica Serrano Barros Barros Manuel Carlos Fernando Pedro Miguel Ferreira,Manuel Protótipo de veículo eléctrico Martins de Lopes Freitas Fernando Martins de Barros Barros Luis Nero Krzysztof Marek Sistema de Gestão de Iluminação em Luis Nero Alves Alves,António Machnicki Ambientes Industriais Tavares Wilson Sousa Luis Nero Alves,Dinis Sistemas de Comunicação por Luz Luis Nero Alves Cerino Magalhães Santos Visível Baseados em FPGA Luis Nero Alves,José Sistemas Inteligentes de Iluminação Luis Nero Alves Nuno Sá Cura Pública Artur Lopes João Couto Arez Sisteme de Medida da Espessura de Helena Ramos Ribeiro Gonçalves Chapas Metálicas João Carlos Rui Casanova Automated Trading in Forex Silva Switching Converter for Audio Beatriz Borges Rui Santos Carlos Ferreira Reproduction Development and Integration of Joaquim Fernando Lopes Sensors for Industrial Automation and Varandas Communications Octavian Renato Bito José Dias Pereira Suction Meter for Prematures Postolache AIDA II: OpAmps Automatic Layout Jorge Manuel Correia Nuno Horta Ricardo Martins Generator Guilherme Nuno Horta Nuno Horta Gonçalo Aguiar Marcio Cabral Manuel Fernando Martins de Barros GENOM2: Optimização do Dimensionamento de Circuitos Analógicos com Recurso a Técnicas de Computação Evolutiva End Date 11/2011 11/2011 11/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 12/2011 1/2012 1/2012 3/2012 3/2012 4/2012 4/2012 337 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Student Co- Supervisors Title David Filipe Correia Guilherme Jorge Manuel Correia Guilherme Sistema amplificador de Classe G para áudio portátil de elevada eficiência SPACE-DC/DC - II: Conversor DC-DC para a Industria Aeroespacial Biomedical Smart Sensores IEEE1451.4 and IEEE1451.5 compatibles for HealthCare Ubiquitous Systems CO2 and pH intra-body blood concentrations for respiratory pacer Nuno Horta Álvaro Geraldes Nuno Horta Andre Martins Ribeiro Octavian Postolache João Miguel Correia Freire Pedro Silva Girão Raúl Martins João Carreiras Raúl Martins Rui Neves António Manuel Lourenço Canelas Nuno Horta António Luís Morais Costa da Sérgio Cerqueira Silva Lopes André Manuel Luis Miguel dos Santos Antunes Caseiro Mendes Paulo Bacelar Reis Pedreiras Diego Mendes Sérgio Cruz Pedro Camara Costa Bruno Miguel António Cardoso Gomes dos Santos Cesar Gomes Luís Cruz Luisiane Fernandes André Manuel Filipe Antonio dos Santos Carreira Costa Mendes António Luís Morais Costa da Marcos Pinto Silva Lopes Pedro Araújo José Castanheira 4/2012 4/2012 5/2012 5/2012 6/2012 Context-aware Mobile Application for Automatic Appointment Scheduling and 7/2012 Notification Control Strategies and Fault Diagnosis for NPC Multilevel Rectifiers 7/2012 Alexandre Moutela Nunes da Mota,Paulo Controlador Adaptativo baseado em 7/2012 Bacelar Reis Xenomai Pedreiras Diagnosis of core faults in three-phase induction motor drives running in 7/2012 closed-loop Diagnóstico e Análise de Avarias em Geradores Síncronos de Ímanes António Cardoso 7/2012 Permanentes Aplicados em Turbinas Eólicas André Manuel Pedro Manuel dos Santos Antunes Faria Mendes Lopes Paulo Bacelar Ricardo Almeida Reis Pedreiras Paulo André Pais João Leite Fazendeiro Tiago Luis Leite Luís Cruz de Bessa Ferreira António Luís Morais Costa da Luís Cardoso Silva Lopes Daniel Marques Sérgio Cruz Machado Paulo Bacelar Reis Pedreiras FOREX PATTERN- Prever Mercados de Futuros de Câmbios usando Padrões End Date Fault Diagnosis in Active Power Filters, 7/2012 based on Multilevel NPC topology. Fixed Priority Schedulers on a hard-real 7/2012 time Baseband Multiprocessor Image Segmentation using Focal Point 7/2012 Clustering: a Parametric Analysis Implementation of Medical Image Registration Methods in Ophthalmology 7/2012 Software Suite Mobile Application for Supporting University Students Alexandre Moutela Nunes da Mota Modelling and simulation of shell-type power transformers Monitorização fina do consumo de energia elétrica usando redes de sensores sem fios Multicore implementation of the HEVC Intra Predictor 7/2012 7/ 2012 7/2012 7/2012 Thermal behavior of a three phase induction motor with a closed-loop load 7/2012 torque control Web-based System for the Automatic Evaluation of Java Programs WebRun - jogo Web interactivo para promover a prática desportiva 7/2012 7/2012 338 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Luís Miguel Martins Nunes Luís Miguel Martins Nunes Student End Date Learning behavior patterns based on surveillance images 9/2012 Nuno Antunes Interactive, Dynamic Timetabling 9/2012 Pedro Cerdeira Pedro Brandão Alice Miranda Luís Miguel Martins Nunes Fernando Tim Tim Janeiro Pedro Bonifácio Costa Luís Miguel Leitão da Silva Maria João Perdigão Barradas Carlos Miguel Schwarz Gonçalves Henriques Beatriz Borges Title André Duarte Luís Miguel Martins Nunes Beatriz Borges Co- Supervisors Multi-Agent Coordination using Setplays: Applications in the RoboCup’s 9/2012 2D Simulation League Poderá a telemonitorização domiciliária contribuir na redução dos elevados custos da insuficiência cardíaca para o 9/2012 SNS? Sancho Moura Oliveira Hugo Marques Profiling Web based users preferences with Text Mining Desenvolvimento de um Contador de Energia Eléctrica Inteligente 9/2012 10/2012 High Frequency Integrated DCDC 10/2012 High Frequency LLC Resonant Converter 10/2012 MAcBETh I: High Performance Operational Amplifiers IC Design Automation based on Pareto Optimal Front Characteristics Nuno Horta Manuel Fernando Frederico Rocha Martins de Barros Ana Charas Soraia Lourenço Manuel Matos Beatriz Borges Fernando Bruno Hugo Ribeiro,Hugo Nabais Ferreira Marques Franco Single Stage Converter for Application in Photovoltaic Pannels 10/2012 Octavian Postolache Pedro Silva Pedro Silva Girão smartHealthCareMobunit - Biomedical and air quality mobile monitoring and data management system based on smart-phone 10/2012 Beatriz Borges Tiago Mota Garcia Oliveira Hugo Marques,Carlos Switching Audio Amplifier Ferreira A Linguistic Framework for Embryo Viability Assessment Paulo André Pais João Silva Fazendeiro Rui Neves Joana Vicente Guerreiro Mendes Jorge Morgado Ana Coelho Nuno Horta João Manuel Patrício Bruno Grácio Beatriz Borges Pedro Martins Beatriz Borges Raúl Miguel Moisés Simões Macedo da Silva Piedade 10/2012 New Cross-linkable Donor Polymers for Nanostructured OPV cells 10/2012 FLOOD - Movimentos de Fundos entre Mercados Organic light-emitting diodes on biocellulose composites 10/2012 11/2012 11/2012 11/2012 Análise e Implementação de Métodos Numéricos para Resolução de Sistemas de Equações Lineares de Grandes 12/2012 Dimensões Converters for Renewable Energy Sources 12/2012 Interface Inverter Between Eolic Turbine and AC Mains 12/2012 339 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Student Co- Supervisors Title End Date Power Supply Based in a Piesoelectric Transformer 12/2012 Mohamed de Jesus Resonant Pole Inverter 12/2012 Inês Sousa Real time power quality monitoring system for 3-phase power grid 11/2015 Beatriz Borges Marco Pinto Beatriz Borges Pedro Ramos Marcelino Santos Table 30 – List of MSc Theses running in the Basic Sciences and Enabling Technologies Area during 2011 PhD Theses Supervisor Edgar Silva Pereira Student Co- Supervisors Commuting matrices and Deflation method for Regular matrix pencils Maria Cecila Rosa Domingos da Silva Barbosa Pierre Delsart Luís Alcácer Luis Filipe Ferreira Morgado Helena Ramos Joaquin del Rio Fernandez Antoni Manuel Luis Nero Alves Navin Kumar Rui L. Aguiar,Luis Nero Alves Jorge Morgado Ana Lu�sa Mendon�a José Dias Pereira Vítor Manuel Pedro Silva Girão Rodrigues Viegas António Cardoso Jorge Oliveira Estima Eduardo de Sousa Saraiva Marina Mendes Sargento Domingues Perdigão António Manuel António Cardoso Luzano de Quadros Flores Title Alain Blanchard Test de modeles d'Énergie Noire et propriétés physiques des amas de galaxies Injecção e transporte de carga em dispositivos electrónicos orgânicos Integration of IEEE 1451 with OGCSWE and Ocean Instruments 9/2011 10/2011 12/2011 12/2011 Visible Light Communication Systems for Road Safety Applications 12/2011 Plastic Optical Fibers doped with conjugated polymers showing gain José Marcos Alonso Álvarez End Date 1/2012 Plataformas de Interoperabilidade 1/2012 para Redes de Comunicação Industrial Análise do Desempenho de Motores Síncronos de Ímanes Permanentes Quando Alimentados Através de Um 2/2012 Conversor Tolerante a Falhas Research and Development on New Control Techniques for Electronic 2/2012 Ballasts based on Magnetic Regulators Utilização do Motor de Indução no Diagnóstico de Avarias em Cargas Acopladas 2/2012 António Cardoso Carlos Alberto Figueiredo Ramos Aproveitamento Electrotérmico de Sistemas Fotovoltaicos em Complexos 3/2012 Desportivos Beatriz Borges Hugo Ribeiro Power Factor Correctors 3/2012 Non volatile resistive memories 4/2012 Estabelecimento de Redes de Comunidades Sobreponíveis 6/2012 Jorge Morgado Rui L. Aguiar Tânia Isabel de Almeida Braz João Paulo Silva Barraca 340 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Student Co- Supervisors Natália dos António Cardoso Santos Gameiro Gonçalves Edgar Silva Fernando Marcos Pereira Edgar Silva Joaquim Manuel Pereira Pereira Mateus Michel Celestino Paiva Ferreira David Vaz Rui L. Aguiar Mónica Jorge Carvalho Figueiredo Paulo Bacelar Reis Pedreiras Milton Armando Cunguara Abel João Gomes Adriano Nunes Raposo Pedro Araújo Nuno Gonçalo Coelho Costa Pombo Title Fault Tolerance in Switched Reluctance Motor Drives 6/2012 Matrix Algorithms 6/2012 Metapopulation in Epidemic Models 6/2012 Modeling, Quering and Mining Spatial Database through Logic Programming 6/2012 Sincronização em Sistemas Integrados a Alta-Velocidade, Sincronização em 6/2012 Sistemas Integrados a Alta-Velocidade Tomás Oliveira e Silva Adaptive control techniques for networked embedded systems Dynamic Geometric Modeling of Plasmidic DNA for Therapeutical Purposes e-pain: information technologies applied to chronic pain assessment Research Topic: High Performance Computing for 3D and 4D Image Segmentation: Application to Automatic Detection of Breast Cancer Resposta farmacológica automática e Filipe Nuno em tempo real em pacientes com Pedro Araújo Mateus Dias regurgitação mitral em cuidados Quinaz intensivos Carlos Filipe ALgoritmos de Optimização para Luís Merca Luís Merca Perquilhas Modelos de Planeamento de Redes de Fernandes Fernandes Baptista Transporte Optimization of the operation of a Ion Francisco Alegria José Lopes Implanter Complexos de metais de transição Rui Teives Ana Isabel Dulce Belo,Rui com base em ligandos ditiolenos Henriques Soares Neves Teives Henriques contendo grupos tiofénicos André Manuel Fault Tolerant Cascade Multilevel Toni dos Santos dos Santos Inverter For Electric Vehicle Alves Mendes Applications Bruno Miguel Gil Intracardiac Rehography by Magnetic Raúl Martins Rosa Induction Tomography Artur Lopes Radislav Signal Processing for NDE in Michal Kubínyi Ribeiro Šmid,Helena Ramos Aerospace, Switching Audio Amplifiers Beatriz Borges Carlos Ferreira Luís Sá Maria Manuela Przemyslaw Areias da Costa Lenkiewicz Pereira de Sousa Helena Ramos,Radislav Šmid Helena Ramos Jakub Kral Octavian Postolache Eduardo Pinheiro Pedro Silva Girão Rui Teives Henriques Bruno José Cardoso Vieira Eunice de Fátima Fragoso Ribeiro Luís Manuel António Cardoso Ramos de Oliveira António Cardoso End Date 9/2012 9/2012 9/2012 9/2012 9/2012 10/2012 10/2012 12/2012 12/2012 12/2012 12/2012 12/2012 Thickness Measurement Using Transient Eddy Current Techniques 12/2012 Vital Signals Monitoring Wheelchair 12/2012 Compostos moleculares condutores com propriedades de comutação e biestabilidade Diagnóstico de Avarias em Sistemas de Energia para Telecomunicações Fault Diagnosis in Three-Phase Transformer Windings 1/2013 1/2013 1/2013 341 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Jorge Morgado Student Maria da Graça Laranjo Mendes Brotas Co- Supervisors Ana Charas Maria Manuela Areias da Costa Elga Correira Pereira de Sousa Ana Carla Vicente António Cardoso Vieira Title New materials for organic solar concentrators and photovoltaic cells End Date 3/2013 Ultrasound Breast Image Analysis for 9/2013 Automated Detection of Breast Cancer Maintenance Management and Organization of School Buildings 10/2013 Armando Rocha José Miguel da Silva Bergano Luís Ultra Low Noise Receiver for Space Cupido,Domingos da and Ground Applications Silva Barbosa 10/2013 Pedro Ramos Luís Filipe Soldado Granadeiro Rosado Moisés Simões Piedade 11/2013 Nuno Horta David Guilherme Nuno Horta Mauro Santos Jorge Manuel Correia Guilherme Beatriz Borges Pedro Braga Beatriz Borges José Santos Gérard Boudol Ana Gualdina Almeida Matos André Manuel dos Santos Mendes Bruno Ricardo Sérgio Cruz Oliveira Baptista Rui Neves José Manuel Matias Pinto Pedro Ramos José Carlos Sequeira Martins dos Santos Nuno Horta Nuno Lourenço Jorge Morgado Joana Tavares Farinhas Ana Charas Sérgio Cruz Mohsen Bandarabadi André Manuel dos Santos Mendes Nuno Horta Maria Manuela Areias da Costa Rui Brás Pereira de Sousa António Cardoso Nuno Miguel Amaral Freire Maria Manuela Ricardo Jorge Areias da Costa Antunes Bichinho Pereira de Sousa Sérgio Duarte Luís Cruz Correia Octavian Abbas Pedro Silva Girão Postolache AbdolAliPour Anders Lyhne Sancho Moura Miguel Duarte Christensen Oliveira Non-Destructive Testing Based on Eddy Currents Amplificadores de Elevado Desempenho para Áudio, Amplicadores de Elevado Desempenho para Áudio Arquitecturas Reconfiguráveis de Elevado Desempenho p/ Terminais Móveis da 4G e 5G Integrated Switching Audio Amplifier Amplificador Audio Comutado Integrado Language Based Security for Distributed Mobile Code Thermal Behaviour of a Three-Phase Induction Motor Fed by a Fault Tolerant Multilevel Inverter Optimal Stock Market Investments Based on Evolutionary Computation Techniques and Technical Analysis Development and Implementation of an Impedance Measuring System Applied to Viscosity Sensors Geração e Optimização Automática de Layout High efficiency polymer-based photovoltaics through morphology control Fault Tolerance in Multilevel Converters for Wind Power Generators Processamento e análise de imagens ultra-som 2D e 3D: aplicação à detecção automática do cancro da mama Tolerância a Falhas em Accionamentos Baseados em Geradores Síncronos de Ímanes Permanentes Aplicados em Turbinas Eólicas Human Visual Perception in Image Compression 12/2013 12/2013 12/2013 12/2013 12/2013 1/2014 2/2014 4/2014 4/2014 7/2014 9/2014 10/2014 11/2014 Signal Processing for Radio Assisted 12/2014 Location Systems Multiprocessor platform for vital signs 12/2015 and motor activity assesment TBD 12/2015 342 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Supervisor Pedro Ramos Student Paulo Ferreira Co- Supervisors Pedro Silva Girão Title End Date Dosimetric and electrical characteristics of a FFF Linac and modern Quality Assurance procedures 12/2016 for Intensity Modulated and Rotational Radiotherapy Table 31 – List of PhD Theses running in the Basic Sciences and Enabling Technologies Area during 2011 343 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4.6 Publications Applied Mathematics Book Chapters - Martins, F.; " Efeito da idade na performance de uma tarefa de antecipaçãocoincidência (Dias G, Mendes R, Clemente F, Rocha R e Martins F) " - Chapter in Estudos em Desenvolvimento Motor da Criança IV , P Mouroço, O Vasconcelos, J Barreiros e R Matos , , Escola Superior de Educação e Ciências Sociais e e Centro de Investigação de Motricidade Humana/IPL, Leiria , 2011 . - Martins, F.; " Efeito dos constrangimentos no desempenho motor de crianças no remate de futebol (Martins F, Clemente F, Couceiro M, Dias G e Mendes R) " Chapter in Estudos em Desenvolvimento Motor da Criança IV , P Mouroço, O Vasconcelos, J Barreiros e R Matos , , Escola Superior de Educação e Ciências Sociais e e Centro de Investigação de Motricidade Humana/IPL, Leiria , 2011 . Papers in Journals - Pereira, E.; M. Rosa; " A deflation method for regular matrix pencils ", Applied Mathematics and Computation , Vol. 218 , No. 6 , pp. 2913 - 2920 , November , 2011 . - Andreani, R. A.; J. J. Júdice; J. Jose Martinez; J. M. Patrício; " A projectedgradient interior-point algorithm for complementarity problems ", Numerical Algorithms , Vol. 57 , No. 4 , pp. 457 - 485 , August , 2011 . - Júdice, J. J.; " Algorithms for linear programming with linear complementarity constraints ", TOP - Sociedad de Estadística y Investigación Operativa , Vol. 1 , No. 1 , pp. 1 - 22 , September , 2011 . - Martins, F.; " Best Approximation Pair of Two Linear Varieties via an (In)Equality by (Fan-Todd) Beesack (M. A. Facas Vicente, Fernando Martins, Cecília Costa, José Vitória) ", Cornell University Library , Vol. 1 , No. 1108.0858 , pp. 1 - 20 , August , 2011 . - Costa-Santos, C. C-S; J. B. Bernardes; L. Antunes; " Complexity and categorical analysis may improve the interpretation of agreement studies using continuous variables ", Journal of Evaluation in Clinical Practice , Vol. 17 , No. 3 , pp. 511 - 514 , June , 2011 . - Antunes, L.; A. Matos; A. Souto; A. Teixeira; " Entropy Measures vs. Algorithmic Information ", Entropy , Vol. 13 , No. 3 , pp. 595 - 611 , March , 2011 . - Gouveia, L.; P. Patrício; A. F. Sousa; " Models for optimal survivable routing with a minimum number of hops: comparing disaggregated with aggregated models ", Intrnl. Transactions in Operational Research , Vol. 18 , No. 3 , pp. 335 - 358 , May , 2011 . 344 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Andreani, R. A.; J. J. Júdice; M. Martinez; J. M. Patrício; " On the natural merit function for solving complementarity problems ", Mathematical Programming , Vol. 130 , No. 1 , pp. 211 - 223 , November , 2011 . - Alvarez-Vázquez, L. J.; J. J. Júdice; A. M. Aurea Martínez; C. R. Rodríguez; M. E. Vázquez-Méndez; M. A. Vilar; " On the optimal design of river fishways ", Optimization and Engineering , Vol. 1 , No. 1 , pp. 1 - 19 , November , 2011 . - Santos, D.; A. F. Sousa; F. Alvelos; M. Dzida; M. Pióro; " Optimization of link load balancing in multiple spanning tree routing networks ", Telecommunication Systems , Vol. 48 , No. 1-2 , pp. 109 - 124 , August , 2011 . - Gouveia, L.; P. M. Moura; A. F. Sousa; " Prize collecting Steiner trees with node degree dependent costs ", Computers and Operations Research , Vol. 38 , No. 1 , pp. 234 - 245 , January , 2011 . - Fernandes, L. M.; J. J. Júdice; H. Sherali; A. P. A. P. Antunes; " Siting and Sizing of Facilities under Probabilistic Demands ", Journal of Optimization Theory and Applications , Vol. 148 , No. 1 , pp. 1 - 21 , January , 2011 . - Lopes, M.; J-C. Wolff; J. Dias; M. A. T. Figueiredo; " Study on the effect of pixel resolution and blending grade on near-infrared hyperspectral unmixing of tablets ", Applied Spectroscopy , Vol. 65 , No. 2 , pp. 193 - 200 , February , 2011 . Papers in Conference Proceedings - Oliveira, J. F.; J. C. Pedro; " Advanced time-domain techniques for strongly nonlinear RF circuit simulation ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Martins, F.; " Análise às variáveis de produto na execução do serviço de ténis sob o efeito de um escoamento aerodinâmico induzido (vento artificial) (P. Mendes, F. Martins, A. M. Facas Vicente, F. Corbi, M. Couceiro, R. Mendes e J. Trovão) ", Proc Congresso Nacional de Biomecânica , Coimbra , Portugal , Vol. 1 , pp. 49 - 52 , February , 2011 . - Martins, F.; " Analysis of the Performance in the First Tennis Serve Under the Effect of an Induced Aerodynamic Flow (Wind) (P. Mendes, R. Mendes, F. Martins, M. A. Facas Vicente, M. J. Coelhoe- Silva, J. P. Fuentes, G. Dias e R. Menayo) ", Proc Annual Congress of the European College of Sport Science , Liverpool , United Kingdom , Vol. 1 , pp. 305 - 305 , July , 2011 . - Lopes, M.; J-C. Wolff; NM Mistry; JW Warrack; J. Dias; M. A. T. Figueiredo; " Comparison of near infrared and Raman hyperspectral unmixing performances for chemical identification of pharmaceutical tablets ", Proc IEEE GRSS Workshop on Hyperspectral Image and Signal Processing , Lisbon , Portugal , June , 2011 . - Martins, F.; " Conhecimento matemático para o ensino de futuros professores dos primeiros anos: os pictogramas (C. Miguel Ribeiro e F. Martins) ", Proc XIII Conf. Interamericana de Educação Matemática , Recife, Pernambuco , Brazil , Vol. 1 , pp. CIAEM (Ed.) - CIAEM (Ed.) , June , 2011 . 345 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Martins, F.; " Early Years’ Trainee Teachers Mathematical Knowledge for Teaching: The Case of Bar Graphs (F. Martins e C. Miguel Ribeiro) ", Proc Conf. of the International Group for the Psychology of Mathematics Education , Ankara , Turkey , Vol. 1 , pp. 491 - 491 , July , 2011 . - Wolff, J-C.; NM Mistry; JW Warrack; M. Lopes; J. Dias; M. A. T. Figueiredo; " Near-infrared imaging and Raman mapping to understand the bigger picture of a counterfeit anti-viral medicine ", Proc Federation of Analytical Chemistry and Spectroscopy Societies - FACSS , Reno , United States , October , 2011 . - Omar, Y.; " Quantum Private Telecommunications ", Proc National Conf. on Telecommunications (Peru) , Arequipa , Peru , Vol. 10.1109/CONATEL.2011.5958672 , pp. 1 - 3 , May , 2011 . - Martins, F.; " Statistical Significance Analysis of the R-DPSO (M. S. Couceiro, N. Ferreira, R. P. Rocha, F. M. L. Martins e F. Clemente) ", Proc ISEC - Symposium on Computational Intelligence for Engineering Systems , Coimbra , Portugal , Vol. 1 , pp. CD-ROM - CD-ROM , November , 2011 . - Martins, F.; " Towards a Correction Metric to the Putting Lip-out (M. S. Couceiro, G. Dias, F. M. L. Martins e J. A. Luz,) ", Proc ISEC - Symposium on Fractional Signals and Systems , Coimbra , Portugal , Vol. 1 , pp. 138 - 146 , November , 2011 . - Martins, F.; " WHAT CAN WE ALL LEARN FROM THE ANALYSIS AND DISCUSSION OF TRAINEES TEACHER’S MKT ABOUT BAR GRAPHS AND PICTOGRAMS? (Fernando M. L. Martins, C. Miguel Ribeiro e Helena Gomes) ", Proc International Week of ESEC , Coimbra , Portugal , Vol. 1 , pp. CD-ROM - CD-ROM , April , 2011 . IMPACT OF TELECOMMUNICATIONS ON SOCIETY Papers in Journals - Baptista, P. R. ; T.R. Cunha; A. Matias; C. Gama; C. Bernardes; Ó. Ferreira; " New land-based method for surveying sandy shores and extracting DEMs: The INSHORE system ", Environmental Monitoring and Assessment , Vol. 182 , No. 1-4 , pp. 243 - 257 , February , 2011 . - Ferreira, M. ; P. d´Orey; " On the Impact of Virtual Traffic Lights on Carbon Emissions Mitigation ", IEEE Trans. on Intelligent Transportation Systems , Vol. 99 , No. 10-2011 , pp. 1 - 12 , October , 2011 . Papers in Conference Proceedings - Olaverri , C.; K. Bengler; " Impact of cultural diversity on the menu structure design of Driver Information Systems: a cross-cultural study ", Proc IEEE Intelligent Vehicles Symp. - IV , Baden Baden , Germany , Vol. 1 , pp. 1 - 1 , June , 2011 . - Sebastião, D.S.; D. Ladeira; M.A. Antunes; C. Oliveira; L. M. Correia; " Projecto monIT - monitorização de radiação electromagnética em comunicações móveis ", 346 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Proc Sociedade Brasileira de Proteção Radiológica II Congresso de Proteção Contra Radiações da Comunidade dos Países de Lingua Portuguesa - Radio2011 , Recife, PE , Brazil , May , 2011 . - Lucas da Silva, M.; C. Simões; D. Gonçalves; T. Gonçalves; H. Silva; F. Botelho; " TROCAS: Communication Skills Development in Children with Autism Spectrum Disorders via ICT ", Proc IFIP TC13 Conf. on Human-Computer Interaction INTERACT , Lisbon , Portugal , Vol. 6949/2011 , pp. 644 - 647 , September , 2011 . INSTRUMENTATION AND MEASUREMENT Book Chapters - Silva, H.; S. P. Palma; H. Gamboa; " AAL+: Continuous Institutional and Home Care Through Wireless Biosignal Monitoring Systems " - Chapter in Handbook of Digital Homecare , Lodewijk Bos, Adrie Dumay, Leonard Goldschmidt, Griet Verhenneman and Kanagasingam Yogesan , Springer , , 2011 . - Postolache, O.; J. M. Dias Pereira; P.M. Girão; G. Postolache; " Distributed Smart Sensing Systems for Indoor Monitoring of Respiratory Distress Triggering Factors " - Chapter in Chemistry, Emission, Control, Radioactive Pollution and Indoor Air Quality , Intech , In-Tech , Rijeka , 2011 . - Antunes, P.; F Domingues; F Granada; P.S André; " Mechanical properties of optical fibers " - Chapter in Optical Fibers , Yasin Moh, Sulaiman W. Harun e Hamzah Arof , In-Tech, 2011 . - Radil, T.; P.M. Ramos; " Methods for Estimation of Voltage Harmonic Components " - Chapter in Power Quality , Andreas Eberhard , In-Tech , 2011 . - , ; L. Bilro; C. Leitão Leitão; P. Antunes; H. Lima; P.S André; R.N. Nogueira; J. L. Pinto; " Optical Fiber Technology for eHealthcare " - Chapter in Handbook of Research on ICTs for Healthcare and Social Services , Isabel Maria Miranda & Maria Manuela Cruz-Cunha, 2011 . - Alberto, Nogueira; Handbook Miranda & N.; L. Bilro; P. Antunes; C. Leitão Leitão; H. Lima; P.S André; R.N. J. L. Pinto; " Optical Fiber Technology for eHealthcare " - Chapter in of Research on ICTs for Healthcare and Social Services , Isabel Maria Maria Manuela-Cruz, 2011 . - Antunes, P.; H. Lima; N. Alberto; L. Bilro; A. Costa; H. Rodrigues Rodrigues; J. L. Pinto; R.N. Nogueira; H Varum; P.S André; " Optical sensors based on FBG for structural health monitoring " - Chapter in New Developments in Sensing Technology for Structural Health Monitoring , Subhas Chandra Mukhopadhyay , Springer, 2011 . - Postolache, O.; J. M. Dias Pereira; P.M. Girão; " Underwater Acoustic Source Localization and Sounds Classification in Distributed Measurement Networks " Chapter in Advances in Sound Localization , Pawel Strumillo , In-Tech , Wien , 2011. 347 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Water Quality Assessment through Smart Sensing and Computational Intelligence " - Chapter in New Developments and Applications in Sensing Technology , Subhas C. Mukhopadhyay, Aime Lay-Ekuakille, Anton Fuchs , Springer , Berlin Heidelberg , 2011 . Papers in Journals - Bilro, L.; J. Oliveira; J. L. Pinto; R.N. Nogueira; " A reliable low-cost wireless and wearable gait monitoring system based on a plastic optical fibre sensor ", Measurement Science & Technology , Vol. 22 , No. 4 , pp. 045801 - 7pp. , April , 2011 . - Dias Pereira, J. M.; O. Postolache; P.M. Girão; " A Smart Measurement and Stimulation System to Analyze and Promote Non-Nutritive Sucking of Premature Babies ", Measurement Science Review , Vol. 11 , No. 6 , pp. 173 - 180 , December , 2011 . - Faria, J.; V. Machado; M. Neves; " Analysis of the Mutual Inductance in Current Transformers taking Primary Conductors Eccentricity into Account ", IEEE Trans. on Magnetics , Vol. 47 , No. 6 , pp. 1719 - 1725 , June , 2011 . - Alberto, N.; L. Carvalho; H. Lima; P. Antunes; R.N. Nogueira; J. L. Pinto; " Characterization of different water/powder ratios of dental gypsum using fibre Bragg grating sensors ", Dental Materials Journal , Vol. 30 , No. 5 , pp. 700 - 706 , September , 2011 . - Oliveira, R.A.; G. R. C. Possetti; C.A.F. Marques; P.T. Neves; K. Cook; R. C. Kamikawachi; J. L. Fabris; R.N. Nogueira; J. Canning; A. Pohl; " Control of the long period grating spectrum through low frequency flexural acoustic waves ", Measurement Science & Technology , Vol. 22 , No. 4 , pp. 045205 - 6pp , April , 2011 . - Bergano , JB; F. F. Fernandes; L. Cupido; D. Barbosa ; R. Fonseca ; I. S. V. Ferreira; B. Grossan; G. F. S. Smoot; " Digital Complex Correlator for a C-band Polarimetry survey ", Experimental Astronomy , Vol. 30 , No. 1 , pp. 23 - 37 , February , 2011 . - " Digital complex correlator for a C-band polarimetry survey ", Experimental Astronomy , Vol. 30 , No. 1 , pp. 23 - 37 , May , 2011 . - Gomes, H.G.; A. R. T. Testera; N.B.C. Carvalho; M. B. Barciela; K. R. Remley; " Diode Power Probe Measurements of Wireless Signals ", IEEE Trans. on Microwave Theory and Tech. , Vol. 59 , No. 4 , pp. 987 - 997 , April , 2011 . - Santos, J.; P.M. Ramos; " DSPIC-BASED IMPEDANCE MEASURING INSTRUMENT ", Metrology and Measurement Systems , Vol. 18 , No. 2 , pp. 0 - 0 , June , 2011 . - Neto, V. Neto; J. Santos Santos; N. Alberto; J. L. Pinto; R.N. Nogueira; J. Grácio Grácio; " Evaluation of Diamond Coatings on Optical Fibre Sensors for Biological Use ", Journal of Nanoscience and Nanotechnology , Vol. 11 , No. 6 , pp. 5408 5412 , June , 2011 . 348 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Carvalho, L.; N. Alberto; P. G. Gomes; R.N. Nogueira; J. L. Pinto; M. H. F. Fernandes; " In the trail of a new bio-sensor for measuring strain in bone: Osteoblastic biocompatibility ", Biosensors and Bioelectronics , Vol. 26 , No. 10 , pp. 4046 - 4052 , April , 2011 . - Lopes, J.; F. Alegria; Redondo; J. R. Rocha; E. A. Alves; " Mass spectrometry improvement on an high current ion implanter ", Nucl. Instrum. Methods Phys. Res. B , Vol. 1 , No. 1 , pp. 1 - 1 , April , 2011 . - Ramos, H. G.; A. L. Ribeiro; M. Kubínyi; " Measuring Interface for an ECT Sysem ", Przeglad Elektrotechniczny , Vol. 87 , No. 7 , pp. 266 - 271 , July , 2011 . - , ; P.S André; H Varum; P. Antunes; L. Ferreira Ferreira; M. Sousa Sousa; " Monitoring of the concrete curing process using plastic optical fibers ", Measurement , Vol. In Press , October , 2011 . - Postolache, O.; J. M. Dias Pereira; P.M. Girão; " Multi-sensing node architecture for water quality monitoring ", Instrumentation Viewpoint , Vol. 1 , No. 11 , pp. 66 - 67 , September , 2011 . - Alegria, F.; " On the Bias of Terminal Based Gain and Offset Estimation Using the ADC Histogram Test Method ", Metrology and Measurement Systems , Vol. 18 , No. 1 , pp. 3 - 12 , March , 2011 . - Antunes, P.; H Varum; P.S André; " Paulo Antunes, Humberto Varum e Paulo André, "Uniaxial fiber Bragg grating accelerometer system with temperature and cross axis insensitivity ", Measurement , Vol. 14 , No. 1 , pp. 55 - 59 , January , 2011 . - Ardeleanu, A. S. A.; P.M. Ramos; " Real time pc implementation of power quality monitoring system based on multiharmonic least-squares fitting ", Metrology and Measurement Systems , Vol. XVIII , No. 4 , pp. 543 - 554 , December , 2011 . - Antunes, P.; Ana M. Rocha; H. Lima; H Varum; P.S André; " Thin bonding wires temperature measurement using optical fiber sensors ", Measurement , Vol. 44 , No. 3 , pp. 554 - 558 , March , 2011 . - Alberto, N.; C.A.F. Marques; J. L. Pinto; R.N. Nogueira; " Three-parameter optical fiber sensor based on a tilted fiber Bragg grating ", The Virtual Journal for Biomedical Optics , Vol. 6 , No. 1-Jan3 , pp. 6085 - 6091 , January , 2011 . Papers in Conference Proceedings - Alegria, F.; A Dionísio; F. Almeida; E. Martinho; " 3-D Electrical Resistivity Imaging as a Smart Monitoring Method for Identification of Moisture Sources in Stone Cultural Heritage ", Proc European Workshop on Cultural Heritage Perservation - EWCHP , Berlin , Germany , Vol. 1 , pp. 218 - 223 , September , 2011 . 349 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Bergano , JB; A. Rocha; L. Cupido; D. Barbosa ; " A 5 GHz LNA for a radioastronomy experiment ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , pp. 1 - 4 , April , 2011 . - Freitas, J.; A. Rocha; L. Cupido; D. Barbosa ; " A 5 GHz LNA for a radioastronomy experiment ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , Vol. 1 , pp. 1 - 4 , April , 2011 . - Pavic, B.; P. Daponte; L. de Vito; H. Silva; " A Case Study on Muscle Activation Analysis in Post-stroke Rehabilitation Patients ", Proc IEEE International Symp. on Medical Measurements and Applications - MeMeA , Bari , Italy , pp. 360 - 365 , May , 2011 . - Postolache, O.; A. L. Ribeiro; H. G. Ramos; " A novel uniform eddy current probe with GMR for Non Destructive Testing Applications ", Proc Conf. on Telecommunications - ConfTele , Lisbon , Portugal , Vol. 1 , pp. 5 - 9 , April , 2011 . - Ramos, H. G.; A. L. Ribeiro; D. Pasadas; T. Rocha; " A SIMPLE DIRECT PROBLEM SOLVER FOR NON-DESTRUCTIVE INSPECTION OF CONDUCTIVE PLATES ", Proc Review of Progress in Quantitative Nondestructive Evaluation - QNDE , Burlington , United States , July , 2011 . - Mariano, F.M.L; M.R. Rogalski; O. Postolache; " A simulation based comparative study of two broadband probes for NMR of magnetically ordered materials ", Proc International Conf. on Sensing Technology - ICST , Palmerston North , New Zealand , Vol. 1 , pp. 1 - 5 , November , 2011 . - Dias Pereira, J. M.; O. Postolache; P.M. Girão; " A Smart Conductivity Sensor with Temperature and Water Tide Level Compensation capabilities ", Proc International Conf. on Sensing Technology - ICST , Palmerstone North , New Zealand , Vol. 1 , pp. 99 - 99 , November , 2011 . - Sousa, J.; S. P. Palma; H. Silva; H. Gamboa; " aal@home: a New Home Care Wireless Biosignal Monitoring Tool for Ambient Assisted Living ", Proc INSTICC International Living Usability Lab Workshop on AAL Latest Solutions, Trends and Applications - AAL , Rome , Italy , January , 2011 . - Silva, H.; A. Lourenço; R. Tomás; V. Lee; S. Going; " Accelerometry-based Study of Body Vibration Dampening During Whole-Body Vibration Training ", Proc IEEE International Symp. on Medical Measurements and Applications - MeMeA , Bari , Italy , pp. 98 - 102 , May , 2011 . - Santos, J.; P.M. Ramos; " Application of Compensation Techniques in a dsPIC based Impedance Measuring System ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Pinheiro, E.C.; O. Postolache; P.M. Girão; " Cardiopulmonary Signal Processing of Users of Wheelchairs with Embedded Sensors ", Proc IEEE International Workshop on Medical Measurements and , Bari , Italy , Vol. I , pp. 1 - 6 , May , 2011 . 350 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Postolache, O.; P.M. Girão; G. Postolache; J M Joaquim; " Cardio-Respiratory and Daily Activity Monitor Based on FMCW Doppler Radar Embedded in a Wheelchair ", Proc International Conf. of the IEEE Engineering in Medicine and Biology Society EMBC , Boston , United States , Vol. 1 , pp. 1917 - 1120 , August , 2011 . - Silva, H.; A. L. N. Fred; A. Lourenço; " Check Your Biosignals Here: Experiments on Affective Computing and Behavioral Biometrics ", Proc Portuguese Conf. on Pattern Recognition - RecPad , Porto , Portugal , October , 2011 . - Kyriazis, G. A. K.; P.M. Ramos; A.C. Serra; " Comparison between a classical and a bayesian approach for estimating harmonics of periodic arbitrary signals ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. TC04 , pp. NA - NA , September , 2011 . - Madeira, R.; O. Postolache; G. Postolache; " Designing Personalized Therapeutic Serious Games for a Pervasive Assistive Environment ", Proc IEEE International Conf. on Serious Games and Applications for Health - SEGAH , Braga , Portugal , Vol. I , pp. 1 - 11 , November , 2011 . - Ribeiro, A. L.; H. G. Ramos; " Eddy Current Non-destructive Problem Inversion when Planar Constant Field Probes are Used ", Proc Review of Progress in Quantitative Nondestructive Evaluation - QNDE , Burlington , United States , Vol. 1 , pp. 27 - 27 , July , 2011 . - Tomás, R.; A. Lourenço; H. Silva; " Efeitos da Vibração Corporal na Activação do Vastus Lateralis Durante o Agachamento Isométrico e Dinâmico ", Proc Portuguese Physical Rehabilitation Society Congress - SPMFR , Albufeira , Portugal , March , 2011 . - Tomás, R.; A. Lourenço; H. Silva; V. Lee; S. Going; " Effects of Whole-Body Vibration on Vastus Lateralis Activation During Isometric and Dynamic Squatting ", Proc World Congress of International Society of Physical and Rehabilitation Medicine - ISPRM , San Juan , Puerto Rico , June , 2011 . - Janeiro, F. M.; F. M. Janeiro; P.M. Ramos; " Efficient Implementation of Multiharmonic Least-Squares Fitting Algorithms ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. 1 , pp. 1 - 1 , September , 2011 . - Oliveira, C.; D.S. Sebastião; D. Ladeira; M.A. Antunes; L. M. Correia; " Electromagnetic Fields Measurements in Portuguese Schools ", Proc International Conf. on Non-Ionizing Radiation and Children Health , Ljubljana , Slovenia , May , 2011 . - Postolache, O.; P.M. Girão; " Enabling telecare assessment with pervasive sensing and Android OS smartphone ", Proc IEEE International Workshop on Medical Measurements and , Bari , Italy , Vol. 1 , pp. 1 - 5 , May , 2011 . - Pasadas, D.; H. G. Ramos; F. Alegria; " Handheld Instrument to Detect Defects in Conductive Plates with a Planar Probe ", Proc IEEE Instrumentation and Measurement Technology Conf. , Shangai , China , pp. 144 - 149 , May , 2011 . 351 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Martins, RCM; D. Primor Primor; T. Paiva; " High-Performance Groundless EEG/ECG Capacitive Electrodes ", Proc IEEE International Symp. on Medical Measurements and Applications - MeMeA , Bari , Italy , Vol. 1 , pp. 503 - 506 , May , 2011 . - Janeiro, F. M.; P.M. Ramos; " IMPEDANCE CIRCUIT IDENTIFICATION THROUGH EVOLUTIONARY ALGORITHMS ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. 1 , pp. 1 - 1 , September , 2011 . - Cruz, P.M.; ; N.B.C. Carvalho; " Instrumentação Virtualizada para Tecnologias Rádio Emergentes ", Proc URSI Seminar of the Portuguese Committee , Lisboa , Portugal , Vol. 1 , November , 2011 . - Rocha, T.; A. L. Ribeiro; H. G. Ramos; " Low-cost Stand-alone System for Eddy Current Testing of Metallic non-Ferromagnetic Plates ", Proc IEEE Instrumentation and Measurement Technology Conf. , Shangai , China , pp. 225 - 230 , May , 2011 - Pinheiro, E.C.; O. Postolache; P.M. Girão; " Method for Segmentation of Cardiac Signals based on Four Parameter Sine Fitting ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. I , pp. 1 - 4 , April , 2011 . - Postolache, O.; P.M. Girão; " Mobile Solution for Air Quality Monitoring and Respiration Activity Monitoring based on an Android OS Smart Phone ", Proc IMEKO TC19 Symp , Cavtat , Croatia , Vol. 1 , pp. 1 - 4 , June , 2011 . - Ramos, H. G.; A. L. Ribeiro; D. Pasadas; T. Rocha; " MODELING EDDY CURRENT INSPECTION OF A METALLIC SAMPLE WITH ROUND HOLE DEFECTS ", Proc IMEKO 17th Symposium IMEKO TC 4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, 3rd Symposium IMEKO TC 19 - Environmental Measurements , Natal , Brazil , September , 2011 . - Antunes, P.; F Domingues; ; ; P.S André; " Monitorização das variações da topografia de uma praia com sensores de fibra óptica ", Proc MEC2011 Conferência sobre Morfodinâmica Estuarina e Costeira - MEC2011 , Lisboa , Portugal , February , 2011 . - Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Multi-sensing node architecture for water quality monitoring ", Proc UPC Workshop Internacial sobre Tecnologia Marina - 28) MARTECH 2007 , Cadiz , Spain , Vol. 1 , pp. 1 - 4 , September , 2011 . - Postolache, O.; P.M. Girão; E.C. Pinheiro; J. M. Dias Pereira; R. Madeira; G. Postolache; J M Joaquim; " Multi-usage of Microwave Doppler Radar in Pervasive Healthcare Systems for Elderly ", Proc IEEE International Instrumentation and Technology Conf. - I2MTC , Hangzhou , China , Vol. I , pp. 10 - 15 , May , 2011 . - Postolache, G.; P.M. Girão; O. Postolache; " New insight into arrhythmia onset using HRV and BPV analysis ", Proc International Conf. of the IEEE Engineering in Medicine and Biology Society - EMBC , Boston , United States , Vol. 1 , pp. 2691 2694 , September , 2011 . 352 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Carretas, L.; J. F. Martins; V. F. Pires; A. J. Pires; P.M. Ramos; F. M. Janeiro; " Online detection of rotor eccentricity in squirrel cage induction motors ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. 1 , pp. 1 - 1 , September , 2011 . - Antunes, P.; H Varum; P.S André; " Optical FBG sensors for static structural health monitoring”, EASEC12 - Twelfth East Asia-Pacific Conference on Structural Engineering and Construction, Hong Kong, 26-28 Janeiro, 2011. ", Proc Twelfth East Asia-Pacific Conference on Structural Engineering and Construction - EASEC12 , Hong Kong , January , 2011 . - Postolache, G.; O. Postolache; P.M. Girão; " Phase shift, coherence, BPV and HRV before and during self-terminating cardiac arrhythmia ", Proc IEEE International Workshop on Medical Measurements and , Bari , Italy , Vol. 1 , pp. 1 - 4 , May , 2011 . - Pasadas, D.; T. Rocha; H. G. Ramos; A. L. Ribeiro; " Portable Eddy Current NDT Instrument Using Two Different Implementations ", Proc EUROCON and CONFTELE 2011 , Lisboa , Portugal , pp. 1 - 1 , April , 2011 . - Oliveira, C.; D.S. Sebastião; D. Ladeira; G.C. Carpinteiro; M.A. Antunes; L. M. Correia; " Procedimento de medida em ambientes hospitalares (in Portuguese) ", Proc URSI Seminar of the Portuguese Committee , Lisboa , Portugal , November , 2011 . - Silva, H.; A. Lourenço; N. Paz; " Real-Time Biosignal Acquisition and Telemedicine Platform for AAL Based on Android OS ", Proc INSTICC International Living Usability Lab Workshop on AAL Latest Solutions, Trends and Applications - AAL , Rome , Italy , Vol. , pp. - , January , 2011 . - Postolache, G.; C. M. Moura; P.M. Girão; O. Postolache; " Rehabilitative TeleHealthCare for post-Stroke Outcome Assessment ", Proc ICST International Conf. on Pervasive Computing Technologies for Healthcare , Dublin , Ireland , Vol. 1 , pp. 1 - 6 , May , 2011 . - Postolache, O.; P.M. Girão; S.A. Antunes; F.A. Tavares; " RF Spectrum Monitoring and Management System Based on an RF Receiver Multi-server Architecture ", Proc International Workshop on Intelligent Data Acquisition and Advanced Computing Systems , Prague , Czech Republic , Vol. 1 , pp. 176 - 179 , September , 2011 . - Pinheiro, E.C.; O. Postolache; P.M. Girão; " Robust Heart Rate Estimation from Cardiovascular Signals Unobtrusively Acquired in a Wheelchair ", Proc IEEE Instrumentation and Measurement Technology Conf. , Hangzhou , China , Vol. I , pp. 779 - 783 , May , 2011 . - Viegas, V.V.; P.M. Girão; J. M. Dias Pereira; " Service-Oriented Distributed Measurement and Control Systems: A Case Study ", Proc International Workshop on Intelligent Data Acquisition and Advanced Computing Systems , Prague , Czech Republic , September , 2011 . - Alberto, N.; C.A.F. Marques; J. L. Pinto; R.N. Nogueira; " Simultaneous temperature and refractive index sensor based on a tilted fibre Bragg grating ", 353 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Proc International Conf. on Applications of Optics and Photonics - AOP2011 , Braga , Portugal , May , 2011 . - Postolache, O.; P.M. Girão; J. M. Dias Pereira; G. Postolache; " Smart Walker for Pervasive HealthCare ", Proc International Conf. on Sensing Technology - ICST , Palmerston North , New Zealand , Vol. 1 , pp. 1 - 5 , December , 2011 . - Silva, H.; A. Lourenço; R. L. Lourenço; P. L. Leite; DPC Antão; A. L. N. Fred; " Study and Evaluation of a Single Differential Sensor Design Based on Electro-textile Electrodes for ECG Biometrics Applications ", Proc IEEE Sensors , Limerick , Ireland , October , 2011 . - Ribeiro, A. L.; H. G. Ramos; J. Gonçalves; " Thickness Measurement of a Nonmagnetic Metallic Plate Using Harmonic Eddy Current Excitation and a GMR Sensor ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. CD-ROM , pp. 1 - 6 , September , 2011 . - Li, -; J. Kral; R. Šmid; H. G. Ramos; A. L. Ribeiro; " Thickness Measurement Using Transient Eddy Current Techniques ", Proc IEEE Instrumentation and Measurement Technology Conf. , Shangai , China , pp. 138 - 143 , May , 2011 . - , ; N. Alberto; C.A.F. Marques; P. Antunes; J. L. Pinto; R.N. Nogueira; " Three parameters simultaneous measurement with a single TFBG ", Proc Optical Fiber Sensors Conf. , Ottawa , Canada , May , 2011 . - Alberto, N.; C.A.F. Marques; P. Antunes; J. L. Pinto; R.N. Nogueira; " Three parameters simultaneous measurement with a single TFBG ", Proc Optical Fiber Sensors Conf. , Ottawa , Canada ,May , 2011 . - , ; P.M. Cruz; N.B.C. Carvalho; " Two-Tone Measurement Technique to apply on Mixed-Domain Instrumentation ", Proc URSI Seminar of the Portuguese Committee , Lisboa , Portugal , November , 2011 . - Postolache, O.; A. L. Ribeiro; H. G. Ramos; " Uniform Eddy Current Probe Implementation Using Planar Eexcitation Coil and GMR Sensor Array ", Proc IMEKO TC4 Symp. , Natal , Brazil , Vol. 1 , pp. 1 - 5 , September , 2011 . - Pinheiro, E.C.; O. Postolache; P.M. Girão; J M Joaquim; C. M. Moura; G. Postolache; " Wheelchair User’s Cardiovascular Evaluation System to Support Physiotherapy Sessions ", Proc IEEE Instrumentation and Measurement Technology Conf. , Hangzhou , China , Vol. I , pp. 369 - 374 , May , 2011 . Project Reports - COrE (Cosmic Origins Explorer) A White Paper ", ESA Porposal submission , , February , 2011 . 354 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES INTEGRATED CIRCUITS AND SYSTEMS Papers in Journals - Rolo, M. D. Rolo; L.N.A. Alves; E. M. Martins; M. Santos; " A low-noise CMOS front-end for TOF-PET ", Journal of Instrumentation , Vol. 6 , No. 9 , pp. 8888 9999 , September , 2011 . Guilherme, DG; J.G. Guilherme; N.H. Horta; " Automatic Topology Selection and Sizing of Class-D Loop-Filters for Minimizing Distortion Based on an Evolutionary Optimization Kernel ", Analog Integrated Circuits and Signal Processing , Vol. 68 , No. 10.1007/s10470-011-9716-4 , pp. 1 - 12 , July , 2011 . Quaresma, HJQ; P.M. Santos; A.C. Serra; " Impact of temperature on substrate coupling in low-doped substrate ", Electronics Letters , Vol. 47 , No. 23 , pp. 1273 1275 , November , 2011 . Oliveira, A.O.; L. Almeida; ABF Ferrari; " The ARPA-MT Embedded SMT Processor and Its RTOS Hardware Accelerator ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 3 , pp. 890 - 904 , March , 2011 . Papers in Conference Proceedings - Terra, D.; Navin Kumar; Nuno Rafael Lourenço; L.N.A. Alves; R. L. Aguiar; " Design, development and performance analysis of DSSS-based transceiver for VLC ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . Figueiredo, M.; R. L. Aguiar; " Dynamic Jitter Accumulation in Clock Repeaters Considering Power and Ground Noise Correlations ", Proc IEEE International Symp. on Circuits and Systems - ISCAS , Rio de Janeiro , Brazil , May , 2011 . - Sousa, P.; C. Duarte; M.B. Barros ; J.G. Guilherme; N.H. Horta; " Optimal OpAmp Sizing based on a Fuzzy-Genetic Kernel ", Proc Genetic and Evolutionary Computation Conf. - GECCO , Dublin , Ireland , July , 2011 . - Silva, N.V.S.; A.O. Oliveira; N.B.C. Carvalho; " Validation of a Flexible FPGAbased LDPC Decoder Through Hardware-Software Co-simulation ", Proc Jornadas sobre Sistemas Reconfiguráveis - REC , Porto , Portugal , pp. 39 - 42 , February , 2011 . - Terra, D.; D. Terra; L.N.A. Alves; R. L. Aguiar; " Visible Light Communication for Intelligent Transportation in Road Safety Applications ", Proc IEEE IWCMC - IWCMC , Istambul , Turkey , Vol. 2 , pp. 1111 - 1115 , July , 2011 . Project Reports - Terra, D.; Nuno Rafael Lourenço; M. Figueiredo; L.N.A. Alves; R. L. Aguiar; " D5.1: Visible-light transceiver prototype ", Instituto de Telecomunicações Aveiro , PTDC/EEA-TEL/75217/2006 , March , 2011 . 355 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Terra, D.; Nuno Rafael Lourenço; Navin Kumar; L.N.A. Alves; R. L. Aguiar; " D6.1: Performance evaluation of VIDAS demonstrator ", Instituto de Telecomunicações Aveiro , PTDC/EEA-TEL/75217/2006 , March , 2011 . - Terra, D.; Nuno Rafael Lourenço; L.N.A. Alves; R. L. Aguiar; " P5.1: Visible-light transceiver prototype ", Instituto de Telecomunicações Aveiro , PTDC/EEATEL/75217/2006 , March , 2011 . LOGICS AND COMPUTATION THEORY Book Chapters - Montalto, B. M.; D. Basin; C. Caleiro; " Efficient decision procedures for message deducibility and static equivalence " - Chapter in Formal Aspects of Security and Trust - Lecture Notes in Computer Science, volume 6561 , P. Degano, S. Etalle, J. Guttman , Springer, 2011 . Papers in Journals - Caleiro, C.; R. Gonçalves; " Abstract valuation semantics ", Studia Logica , July , 2011 . - Long, Y.; D. Qiu Qiu; D. Long; " An Efficient Separability Criterion for n-partite arbitrarily dimensional quantum states ", Intrnl. Journal of Quantum Information , Vol. 9 , No. 1 , pp. 1101 - 10112 , September , 2011 . - " Comment on 'Semiquantum-key distribution using less than four quantum states ", Physical Review A , Vol. 83 , No. 4 , pp. 046302 - 046302 , October , 2011 . - Zou, X.; D. Qiu Qiu; " Comment on Semiquantum-key distribution using less than four quantum states ", Physical Review A , Vol. 83 , No. 4 , pp. 046302 - 046303 , November , 2011 . - Long, Y.; D. Qiu Qiu; " Concurrence vectors of multipartite states based on coefficient matrices ", Quantum Information Processing , Vol. 11 , No. 1 , pp. 1 - 20 , December , 2011 . Basin, D.; C. Caleiro; J. Ramos; L. Viganò; " Distributed temporal logic for the analysis of security protocol models ", Theoretical Computer Science , Vol. 412 , No. 31 , pp. 4007 - 4043 , July , 2011 . - Paunkovic, N.; J. Bouda; P. Mateus; " Fair and Optimistic Quantum Contract Signing ", Physical Review A , Vol. 84 , No. 6 , pp. 062331 - 062331 , December , 2011 . Caleiro, C.; M.P.G. Gouveia; J. Ramos; " Hierarchical logical consequence ", Logic Journal of the IGPL , Vol. 19 , No. 4 , pp. 544 - 565 , July , 2011 . 356 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES Situ, Haozhen; D. Qiu Qiu; " Investigating the implementation of restricted sets of multiqubit operations on distant qubits: a communication complexity perspective ", Quantum Information Processing , Vol. 10 , No. 1 , pp. 609 - 618 , May , 2011 . Caleiro, C.; J. Marcos; " Many-valuedness meets bivalence: Using logical values in an effective way ", Journal of Mutiple-Valued Logic and Soft Computing , July , 2011. - Fernandes , G. Falcão; L. Sousa; V. Silva; " Massively LDPC Decoding on Multicore Architectures ", IEEE Trans. on Parallel and Distributed Systems , Vol. 22 , No. 2 , pp. 309 - 322 , February , 2011 . Qiu, D. Qiu; L. Li; X. Zou; P. Mateus; J. Gruska; " Multi-letter quantum finite automata: Decidability of the equivalence and minimization of states. ", Acta Informatica , Vol. 48 , No. 5-6 , pp. 271 - 200 , April , 2011 . - Matos, A.; J. Cederquist; " Non-disclosure for distributed mobile code ", Mathematical Structures in Computer Science , Vol. 21 , No. 6 , pp. 1111 - 1181 , June , 2011 . - Sernadas, A.; C. Sernadas; J.R. Rasga; " On combined connectives ", Logica Universalis , Vol. 5 , No. 2 , pp. 205 - 224 , March , 2011 . - Caleiro, C.; L. Viganò; MV Volpe; " On the mosaic method for many-dimensional modal logics: a case study combining tense and modal operators ", Logica Universalis , January , 2011 . - Barisch, M. B.; M. Coniglio; C. Sernadas; " Preservation by fibring of the finite model property ", Journal of Logic and Computation , Vol. 21 , No. 2 , pp. 375 - 402 , March , 2011 . - Sernadas, A.; C. Sernadas; " Preservation by fibring of the finite model property ", Journal of Logic and Computation , Vol. 21 , No. 2 , pp. 375 - 402 , April , 2011 . - Lin, Q.; D. Long; D. Qiu Qiu; " Sharing a quantum secret without a trusted party ", Quantum Information Processing , Vol. 10 , No. 1 , pp. 97 - 106 , May , 2011 . - Zheng, S.; L. Li; D. Qiu Qiu; " Two-Tape Finite Automata with Quantum and Classical States ", Intrnl. Journal of Theoretical Physics , Vol. 2011 , No. 50 , pp. 1262 - 1281 , September , 2011 . Papers in Conference Proceedings - Matos, A.; A. T. Teixeira; A. Souto; " Distinguishing probability ensembles ", Proc Computability in Europe - CIE , Sofia , Bulgaria , pp. 155 - 164 , June , 2011 . - Montalto, B. M.; D. Basin; C. Caleiro; " FAST - An efficient decision procedure for deduction and static equivalence ", Proc International Conf. on Rewriting Techniques and Applications - RTA , Novi Sad , Serbia & Montenegro , Vol. 10 , pp. 11 - 20 , July , 2011 . 357 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES POWER ELECTRONICS AND POWER SYSTEMS Book Chapters - Estima, J. O.; A. J. M. Cardoso; " Comparison of Different Modulation Strategies Applied to PMSM Drives Under Inverter Fault Conditions " - Chapter in Technological Innovation for Sustainability , Luis M. Camarinha-Matos , Springer , Boston , 2011 . Papers in Journals - Estima, J. O.; A. J. M. Cardoso; " A new approach for real-time multiple opencircuit fault diagnosis in voltage source inverters ", IEEE Trans. on Industry Applications , Vol. 47 , No. 6 , pp. 2487 - 2494 , December , 2011 . - Fabbri, G.; A. J. M. Cardoso; C. B. Boccaletti; L. C. Castrica; " A Software Tool for the Evaluation of the Behaviour of Bioelectrical Currents ", Journal of Systemics, Cybernetics and Informatics , Vol. 9 , No. 3 , pp. 79 - 84 , May , 2011 . - Buiatti, G. M. Buiatti; A.M.R. Amaral; A. J. M. Cardoso; " A Very Simple Experimental Technique for Characterizing and Diagnosing Electrolytic Capacitors ", Intrnl. Journal of Electrical Engineering Education (IJEEE) , Vol. 48 , No. 1 , pp. 17 33 , January , 2011 . - Cruz, S. M. A. ; M. Ferreira; A. M. S. Mendes; A. J. M. Cardoso; " Analysis and Diagnosis of Open-Circuit Faults in Matrix Converters ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 5 , pp. 1648 - 1661 , May , 2011 . - Machado, V.; M. E. Pedro Pedro; J. Faria; D. Van Dommelen Dommelen; " Magnetic Field Analysis of Three-Conductor Bundles in Flat and Triangular Configurations with the Inclusion of Proximity and Skin Effects ", Electric Power Systems Research , Vol. 81 , No. 11 , pp. 2005 - 2014 , November , 2011 . - Perdigão, M.; J. Álvarez; D. Gacio Gacio; E. S. Saraiva; " Magnetically Controlled Electronic Ballasts With Isolated Output: The Variable Transformer Solution ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 9 , pp. 4117 - 4129 , September , 2011 . - Ribeiro, H.R.; B. Borges; " New Optimized Full-Bridge, Single Stage AC/DC Converters ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 6 , pp. 2397 2409 , June , 2011 . - Álvarez, J.; M. Perdigão; D. Gacio Gacio; E. S. Saraiva; " Optimizing Universal Ballasts Using Magnetic Regulators and Digital Control ", IEEE Trans. on Industrial Electronics , Vol. 58 , No. 7 , pp. 2860 - 2871 , July , 2011 . - Boccaletti, C. B.; L. Petrucci; " Parametric Analysis of Axial Flux Wind Generators Focused on Total Harmonic Distortion Evaluation ", IET Renewable Power Generation , Vol. 5 , No. 2 , pp. 148 - 159 , March , 2011 . 358 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Oliveira, L. M. R.; A. J. M. Cardoso; S. M. A. Cruz; " Power transformers winding fault diagnosis by the on-load exciting current Extended Park’s Vector Approach ", Electric Power Systems Research , Vol. 81 , No. 6 , pp. 1206 - 1214 , June , 2011 . - Ribeiro, H.R.; B. Borges; " Techniques to obtain single-stage power supplies with power factor correction (PFC) ", Intrnl. Journal of Electronics , Vol. 98 , No. 4 , pp. 487 - 504 , April , 2011 . Papers in Conference Proceedings - Estima, J. O.; A. J. M. Cardoso; " A Fault-Tolerant Permanent Magnet Synchronous Motor Drive with Integrated Voltage Source Inverter Open-Circuit Faults Diagnosis ", Proc European Conf. on Power Electronics and Applications , Birmingham , United Kingdom , pp. 1 - 10 , August , 2011 . - Fabbri, G.; M. Paschero; A. J. M. Cardoso; C. B. Boccaletti; F. M. F. Mascioli; " A Genetic Algorithm Based Battery Model for Stand Alone Radio Base Stations Powering ", Proc IEEE Industry Telecommunications Energy Conf. - INTELEC , Amsterdam , Netherlands , Vol. 1 , pp. 1 - 8 , October , 2011 . - Fabbri, G.; C. B. Boccaletti; F. M. F. Mascioli; A. J. M. Cardoso; " Adding ICT to Transportation Systems: Monitoring and Management System for the Electric Vehicle Fleet on the Island of Ventotene ", Proc IEEE International Conf. on Computer Science and Information Technology - ICCSIT , Chengdu , China , Vol. 1 , pp. 403 - 407 , June , 2011 . - Mendes, A. M. S.; R. Rocha Rocha; A. J. M. Cardoso; " Analysis of a Railway Power System Based on Four Quadrant Converters Operating Under Faulty Conditions ", Proc IEEE International Electric Machines and Drives Conf. , Niagara Falls , Canada , Vol. CDROM , pp. 1 - 6 , May , 2011 . - Freire, Nuno M. A.; J. O. Estima; A. J. M. Cardoso; " Comparison of Distinct Modulation Techniques Applied to PMSG Drives for Wind Turbine Applications Under Faulty Operating Conditions ", Proc International Conf. on Clean Electrical Power ICCEP , Ischia , Italy , pp. 1 - 6 , June , 2011 . - Freire, Nuno M. A.; J. O. Estima; A. J. M. Cardoso; " Comparison of PMSG Drives Based on Vector Control and Direct Control Techniques for Wind Turbine Applications ", Proc Portuguese-Spanish Conf. in Electrical Engineering , Ponta Delgada , Portugal , pp. 1 - 6 , June , 2011 . - Marques, H.S.; B. Borges; P.M. Ramos; A. Martins; " Contactless Battery Charger for Composite Humidity and Temperature Wireless Sensors ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , Vol. 1 , pp. 1 - 1 , April , 2011 . - Marques, H.S.; B. Borges; " Contactless Battery Charger with High Relative Separation Distance and Improved Efficiency ", Proc International Telecommunications Energy Conf. , Amsterdam , Netherlands , Vol. 1 , pp. 1 - 5 , October , 2011 . 359 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Fabbri, G.; A. J. M. Cardoso; C. B. Boccaletti; A. Girimonte; " Control and Optimisation of Power Consumption in Radio Base Stations ", Proc IEEE Industry Telecommunications Energy Conf. - INTELEC , Amsterdam , Netherlands , Vol. 1 , pp. 1 - 6 , October , 2011 . - Baptista, B. Baptista; A. M. S. Mendes; S. M. A. Cruz; A. J. M. Cardoso; " Effects of Static Eccentricity on the Temperature Distribution in a Three-Phase Induction Motor ", Proc Portuguese-Spanish Conf. in Electrical Engineering , Ponta Delgada , Portugal , Vol. CDROM , pp. 1 - 5 , June , 2011 . - Quispe, E. Q.; X. Fernández; A. M. S. Mendes; A. J. M. Cardoso; J. A. Palacios; " Experimental Study of the Effect of Positive Sequence Voltage on the Derating of Induction Motors under Voltage Unbalance ", Proc IEEE International Electric Machines and Drives Conf. , Niagara Falls , Canada , Vol. 1 , pp. 918 - 922 , May , 2011 . - Ventura, R.V.; A. M. S. Mendes; A. J. M. Cardoso; " Fault Detection in multilevel cascaded inverter using Park’s Vector Approach with balanced battery power usage ", Proc European Power Electronics Conf. - EPE , Birmingham , United Kingdom , Vol. CDROM , pp. 1 - 5 , August , 2011 . - Freire, Nuno M. A.; J. O. Estima; A. J. M. Cardoso; " Multiple Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives Using the Current Park’s Vector Phase and the Currents Polarity ", Proc IEEE International Symp. on Diagnostics for Electrical Machines, Power Electronics and Drives , Bologna , Italy , pp. 1 - 8 , September , 2011 . - Ribeiro, E.; A. J. M. Cardoso; C. B. Boccaletti; " Power Conditioning and Energy Management in a Renewable Energy Based Hybrid System for Telecommunications ", Proc International Telecommunications Energy Conf. , Amsterdam , Netherlands , Vol. 1 , pp. 1 - 9 , October , 2011 . - Ribeiro, E.; A. J. M. Cardoso; C. B. Boccaletti; " Power Converters Analysis in a Renewable Energy Based Hybrid System with Hydrogen Storage ", Proc IET Renewable Power Generation - RPG , Edinburgh , United Kingdom , Vol. 1 , pp. 1 6 , September , 2011 . - Petrucci, L.; G. Fabbri; C. B. Boccaletti; A. J. M. Cardoso; " Powering and Cooling of a Server Room Using a Hybrid Trigeneration System ", Proc IEEE International Conf. on Computer Science and Information Technology - ICCSIT , Chengdu , China , Vol. 1 , pp. 398 - 402 , June , 2011 . - Estima, J. O.; A. J. M. Cardoso; " Single Power Switch Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives by the Reference Current Errors ", Proc IEEE International Symp. on Diagnostics for Electrical Machines, Power Electronics and Drives , Bologna , Italy , pp. 1 - 8 , September , 2011 . 360 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES TECHNOLOGY AND MATERIALS Papers in Journals - Pereira, A. T. P.; P. N. Novo; M. P. Prazeres; V. C. Chu; J. P. C. Conde; " Heterogeneous immunoassays in microfluidic format using fluorescence detection with integrated amorphous silicon photodiodes ", Biomicrofluidics Journal , Vol. 5 , No. 1 , pp. 014102 - 014102-13 , February , 2011 . - Romão, R. I. S. ; Q. Ferreira; J. Morgado; J. Martinho; A. M. P. S. Gonçalves da Silva; " Nanopatterning in Langmuir-Blodgett monolayers of a thermoresponsive double hydrophilic block copolymer studied by AFM ", Journal of Nanoscience and Nanotechnology , Vol. 11 , No. 4 , pp. 3151 - 3161 , April , 2011 . - Farinhas, J.; Q. Ferreira; R. Paolo; L.A. Alcácer; J. Morgado; A. Charas; " Nanostructured donor/acceptor interfaces in photovoltaic cells using columnar-grain films of a cross-linked poly(fluorene-alt-bithiophene) ", Journal of Materials Chemistry , Vol. 21 , No. 33 , pp. 12511 - 12519 , September , 2011 . - Vicente, C.; R. A. Sá Ferreira; E. Pecoraro; P.S André; L. D. Carlos; " Optical filters and resonant cavities based on di-ureasil organic–inorganic hybrids ", Journal of Sol Gel Science and Technology , Vol. 59 , No. 3 , pp. 475 - 479 , August , 2011 - Khalil, G. K.; A. M. A. Adawi; B. Robinson; A. J. C. Cadby; W. C. T. Tsoi; J-S. Kim; A. Charas; J. Morgado; D. L. Lidzey; " Spectroscopy and Single-Molecule Emission of a Fluorene-Terthiophene Oligomer ", Journal of Physical Chemistry B , Vol. 115 , No. 42 , pp. 12028 - 12035 , October , 2011 . - Ferreira, Q. ; L.A. Alcácer; J. Morgado; " Stepwise preparation and characterization of molecular wires made of zinc octaethylporphyrin complexes bridged by 4,4-bipyridine on HOPG ", Nanotechnology , Vol. 22 , No. 43 , pp. 435604 - 435610 , October , 2011 . - Charas, A.; A. Mendonça; J. C. Clark; L. B. Bazzana; A. N. Nocivelli; G. L. Lanzani; J. Morgado; " Stimulated Emission and Ultrafast Optical Switching in a Ter(9,9-spirobifluorene)-co-methylmethacrylate Copolymer ", Journal of Polymer Science Part B: Polymer Physics , Vol. 49 , No. 1 , pp. 52 - 61 , January , 2011 . Papers in Conference Proceedings - Alcácer, L.A.; J. Morgado; Q. Ferreira; E. Pecoraro; " Biocellulose Based Materials for Organic Field Effect Transistors ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Morgado, L.; J. Morgado; " EFFECT OF CHARGE TRAPPING DOPANTS ON THE CURRENT AND EFFICIENCY OF POLYFLUORENE-BASED LEDS (Abstract Only) ", Proc Electronic and Related Properties of Organic Systems , Vilnius , Lithuania , July , 2011 . 361 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Ferreira, Q. ; J. Morgado; " Electrical Properties of a Single Molecule ", Proc Conf. on Telecommunications - ConfTele , Lisboa , Portugal , April , 2011 . - Matos, M.; Q. Ferreira; R. T. Henriques; J. Morgado; M.A. Afonso; R.S. Silva; M. Almeida; " ELECTROCRYSTALLISATION UNDER MAGNETIC FIELD OF PERYLENE COMPOUNDS ", Proc Conf. of International Society of Electrochemistry - RSEQ - ISE 2011 , Murcia , Spain , September , 2011 . - Ferreira, Q. ; L.A. Alcácer; J. Morgado; " Fabrico de fios moleculares por selfassembly controlado por STM ", Proc Encontro Nacional da SPQ , Braga , Portugal , , July , 2011 . - Pereira, A. T. P.; Q. Ferreira; E. Pecoraro; C. S. R. F. Ferreira; S. C. M. F. Fernandes; C. P. N. Neto; A. J. D. Silvestre Silvestre; J. Morgado; L.A. Alcácer; " Inkjet-printed organic field-effect transistors using bacterial cellulose materials ", Proc International Symp. on Flexible Organic Electronics - IS-FOE09 , Thessaloniki , Greece , July , 2011 . - Ferreira, Q. ; L.A. Alcácer; J. Morgado; " Molecular wires of zinc octaethylporphyrins and bipyridines prepared at the tetradecane/HOPG interface ", Proc International SPM usermeeting , Les Ulis , France , May , 2011 . - Charas, A.; J. Farinhas; Q. Ferreira; R. Paolo; J. Morgado; " Organic photovoltaic cells based on structured layers of cross-linked donor polymers and fullerene ", Proc European Materials Research Society (E-MRS) - Spring Meeting - E-MRS , Nice , France , May , 2011 . - Farinhas, J.; Q. Ferreira; R. Paolo; A. Charas; J. Morgado; " Organic photovoltaic cells with nanostructured films of cross-linked conjugated polymers ", Proc SPOF International Conference on Applications of Optics and Photonics - AOP 2011 , Braga , Portugal , May , 2011 . - Charas, A.; J. Farinhas; Q. Ferreira; R. Paolo; J. Morgado; " Organic Photovoltaic Cells with Nanostructured Polymer Layers ", Proc Sociedade Portuguesa de Química XXII Encontro Nacional da Sociedade Portuguesa de Química - XXIIENSPQ , Braga , Portugal , July , 2011 . - Farinhas, J.; Q. Ferreira; A. Charas; J. Morgado; " Organic photovoltaic cells with structured interfaces ", Proc EUROCON and CONFTELE 2011 , Lisbon , Portugal , April , 2011 . - Farinhas, J.; A. Charas; Q. Ferreira; R. Paolo; J. Morgado; " Organic Photovoltaics with Nanostructured Interfaces Prepared from a Cross-linked Polyfluorene ", Proc International Conf. on Materials for Advanced Technologies - ICMAT , Singapore , Singapore , June , 2011 . - Ferreira, Q. ; L.A. Alcácer; J. Morgado; " Zinc-octaethylporphyrin/bipyridine molecular wires on HOPG ", Proc International Conf. on Materials for Advanced Technologies - ICMAT , Singapore , Singapore , June , 2011 . 362 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES 4.4.7 Other Achievements Prototypes - Girão, P.M.; O. Postolache; " Smart Bracelet ", 000 , June , 2011 . Patents - Araújo, P.A.; J.M.O. Oliveira; A. Lebres; C.N. Nunes; " “Thermometer for prolonged monitoring of vaginal temperature” (pending) ", 105089 , June , 2011 . - P.S André; P. Antunes; H Varum; " Acelerómetro e inclinómetro bidimensional óptico baseado em redes de difracção gravadas em fibras ópticas ", Pendente , August , 2011 . - Faria, J.; " Dispositivo formado por uma linha magnética de transmissão, para uso em circuitos integrados, para aplicações na tecnologia terahertz ", 106056 (Portugal) , December , 2011 . Garcia, N. M. ; " Gerador para transformação da energia cinética de um gás emnergia eléctrica ", Portugues Patent 105703, pending , May , 2011 . Garcia, N. M. ; P. S. Sousa; M. C. B. Castelo Branco; " Máquina de avaliação do estado de saúde através dos métodos conjuntos de auto-semelhança e entropia ", Portuguese Patent 105403, pending , November , 2011 . - Ferreira, ; P.S André; P. Antunes; E. Pecoraro; L. D. Carlos; N. Santos; J. Santos; A. Barros Barros; " Sensor óptico baseado em fibras fotónicas e materiais híbridos orgânicos-inorgânicos para monitorização do nível de humidade relativa ", Pendente , September , 2011 . - P.S André; H Varum; P. Antunes; E. Pecoraro; Ferreira; L. D. Carlos; " Sensor óptico baseado em redes de difracção para monitorização do nível de humidade relativa e temperatura em estruturas de engenharia civil ", Pendente , September , 2011 . Awards - Marques, H.S.; B. Borges; " Best Poster Award ", Contactless Battery Charger with High Relative Separation Distance and Improved Efficiency atribuido na 33rd International Telecommunications Energy Conference – INTELEC, Amsterdam, Netherlands , 01-10-2011 . - Freire, Nuno M. A.; J. O. Estima; A. J. M. Cardoso; " Best Paper Award ", 12th Portuguese-Spanish Conf. in Electrical Engineering, Ponta Delgada, Portugal , 0107-2011 . - Pereira, A. T. P.; Q. Ferreira; E. Pecoraro; C. S. R. F. Ferreira; J. Morgado; L.A. Alcácer; " Inkjet printing of organic field-effect transistors using biocellulose 363 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES derivative materials ", Best poster in the XXII Encontro Nacional da SPQ , 01-072011 . - Pinheiro, E.C.; " Outstanding Reviewer of 2010 ", IEEE Transactions on Instrumentation and Measurement , 01-02-2011 . - Faria, J.; " IEEE Fellow ", Fellow IEEE , 01-01-2011 . Miscellaneous - Gouveia, M. C.G.; " PhD Thesis Jury ", Contradomínios numéricos em espaços de Hilbert e em espaços de Krein ", , 01-12-2011 . - Barbosa , D.; " Member of Advisory Committee ", COrE - Cosmic Origins Explorer ", an M3 propossal submitted to ESA Cosmic Vision 2015-2015 , 01-11-2011 . - Mendes, J. C.; J. C. Grácio; DMS Santos; " Invited Talks ", Increasing the performance of wireless sensors for the automotive industry with nanodiamond coatings ", http://www.bitconferences.com/nano2011/default.asp , 01-10-2011 . - Martins, F.; " MSc Thesis Jury ", UMA EXPERIÊNCIA DE APRENDIZAGEM COM O GEOGEBRA NO 8.º ANO DE ESCOLARIDADE: O ESTUDO DA MEDIATRIZ ", UTAD Vila Real , 01-10-2011 . - Oliveira, A.O.; " Member of Technical Committee ", The 5th International Conference on Advances in Circuits, Electronics and Micro-electronics ", CENICS 2011 , 01-08-2011 . - Oliveira, A.O.; " Member of Technical Committee ", The 6th IEEE International Symposium on Industrial Embedded Systems – Västerås, Suécia ", SIES 2011 , 0106-2011 . - Couto, R. G. C.; N. M. Garcia; " Technical Audit ", CE Marking - A synthesis of the conformance CE marking on medical devices ", , 01-03-2011 . - Marques, H.S.; " Seminars ", Transmissão de Energia sem Contacto ", I Fórum de Energia Electrotécnica – Ciclo de Conferências da Semana da FECN, Auditório Agostinho da Silva , 01-03-2011 . 4.4.8 Other Contributions Conference Committees - APDIO Workshop Investigação Operacional na Robótica, Conference Chairman, Joaquim Júdice, 01-01-2011 - International Telecommunications Energy Conf., Scientific Committee, Beatriz Borges, 01-01-2011 364 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Optimization, Scientific Committee, Joaquim Júdice, 01-01-2011 - Doctoral Conf. on Computing, Electrical and Industrial Systems - DOCEIS, Technical Programme Committee, António Cardoso, 01-01-2011 - Portuguese-Spanish Conf. in Electrical Engineering, Scientific Committee, António Cardoso, 01-01-2011 - IEEE International Symp. on Diagnostics for Electrical Machines, Power Electronics and Drives, Scientific Committee, António Cardoso, 01-01-2011 - IEEE Instrumentation and Measurement Technology Conf., Technical Programme Committee, Pedro Silva Girão, 01-01-2011 - Joint IMEKO TC11 TC19 TC20 International Symposia Metrological Infrastructure Environmental and Energy Measurements, International Symposium of Energy Agencies of Mediterranean Countries, Mediterranean Industry of the Sun, Organizing Committee, Pedro Silva Girão, 01-01-2011 - Conf. Ibérica de Sistemas e Tecnologias de Informação - CISTI , Scientific Committee, Paulo André Pais Fazendeiro, 01-01-2011 - IEEE Symp. Series on Computational Intelligence - SSCI, Technical Programme Committee, Paulo André Pais Fazendeiro, 01-01-2011 - Workshop sobre o Ensino da Investigação Operacional, Organizing Committee, João Manuel Patrício, 01-01-2011 - IEEE Instrumentation and Measurement Technology Conf., Technical Programme Chairman, António Cruz Serra, 01-01-2011 - Portuguese Conf. on Artificial Intelligence - EPIA, Technical Programme Committee, Cristina Olaverri , 01-01-2011 - EUROCON and CONFTELE 2011, Organizing Committee, Beatriz Borges, 01-012011 - Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Organizing Committee, João Carlos Roquete Fidalgo Canto, 01-01-2011 - International Conf. on Electromagnetic Fields, Health and Environment - EHE'06, Scientific Committee, Vitor Manuel de Oliveira Maló Machado, 01-01-2011 - Curso em Optimização Semidefinida: (Semi)Definitely the Future!, Conference Chairman, Joaquim Júdice, 01-01-2011 - Workshop Investigação Operacional nas Telecomunicações, Organizing nas Telecomunicações, Organizing Committee, Joaquim Júdice, 01-01-2011 - Workshop Investigação Operacional Committee, Luís Merca Fernandes, 01-01-2011 365 ANNUAL REPORT 2011 – BASIC SCIENCES AND ENABLING TECHNOLOGIES - Olimpíadas de Matemática da Lusofonia, Organizing Committee, Luís Merca Fernandes, 01-01-2011 - Conf. sobre Redes de Computadores - CRC, Scientific Committee, Amaro Sousa, 01-01-2011 - Jornadas sobre Sistemas Reconfiguráveis - REC, Technical Programme Committee, Arnaldo Silva Rodrigues de Oliveira, 01-01-2011 - IEEE Real-Time Systems Symp. - RTSS, Technical Programme Chairman, Luis Miguel Pinho de Almeida, 01-01-2011 - Radionet, IT, SPDO, Nexpress-FP7, TICE The Growing Demands on Connectivity and Information processing in Radio Astronomy from VLBI to SKA - VLBI2SKA, Scientific Committee, Domingos da Silva Barbosa , 01-05-2011 - ASTRON, RadioNet, SPDO, SKA-AAVP, FP7 AAVP2011: Taking the AA programme into SKA Pre-Construction - AAVP 2011, Scientific Committee, Domingos da Silva Barbosa , 01-12-2011 - Workshop on Space Tecnhologies and Synergies with Technological Poles, Organizing Committee, Domingos da Silva Barbosa , 01-11-2011 - International Conf. on Engineering UBI2011 – “Innovation and Development”, Scientific Committee, Fernando Manuel Lourenço Martins, 01-01-2011 - Portuguese-Spanish Conf. in Electrical Engineering, Scientific Committee, Vitor Manuel de Oliveira Maló Machado, 01-01-2011 - International Conf. on Agents and Artificial Intelligence - ICAART, Technical Programme Committee, Luís Miguel Martins Nunes, 01-01-2011 366
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