1. introduction - Instituto de Telecomunicações

Transcrição

INSTITUTO DE
TELECOMUNICAÇÕES
ANNUAL REPORT
2007
2
Table of Contents
1.
2.
INTRODUCTION..................................................................................... 7
1.1
History .......................................................................................... 7
1.2
Management .................................................................................. 8
1.3
Highlights of 2007 ........................................................................... 9
KEY IT INDICATORS ............................................................................. 15
2.1
Human Resources ......................................................................... 15
2.2
Projects ....................................................................................... 16
2.3
Publications .................................................................................. 18
3.
FINANCIAL OUTLINE ............................................................................ 19
4.
RESEARCH AREAS................................................................................ 21
4.1
Wireless Communications ............................................................... 21
4.1.1
Area Coordinators ................................................................... 21
4.1.2
Human Resources ................................................................... 21
4.1.3
Summary of Research Achivements........................................... 29
4.1.4
Running and Concluded Projects ............................................... 41
4.1.5
Running and Concluded Theses................................................. 69
4.1.6
Publications ........................................................................... 81
4.1.7
Other Achievements...............................................................107
4.1.8
Other Contributions................................................................110
4.2
Optical Communications ................................................................113
4.2.1
Coordinators .........................................................................113
4.2.2
Human Resources ..................................................................113
4.2.3
Summary of Research Achievements ........................................117
4.2.4
Running and Concluded Projects ..............................................123
4.2.5
Running and Concluded Theses................................................145
4.2.6
Publications ..........................................................................152
4.2.7
4.2.8
Conference Committees .......................................................................167
4.3
Networks and Multimedia ..............................................................169
4.3.1
Coordinators .........................................................................169
4.3.2
Human Resources ..................................................................169
iii
4.3.3
4.3.4
4.3.5
4.3.6
Publications ..........................................................................231
4.3.7
4.3.8
4.4
Basic Sciences and Enabling Technologies........................................267
4.4.1
Coordinators .........................................................................267
4.4.2
Human Resources ..................................................................267
4.4.3
4.4.4
4.4.5
4.4.6
Publications ..........................................................................313
4.4.7
4.4.8
iv
List of Tables
Table 1 - Foreseen and achieved scientific output in 2007. ............................... 11
Table 2 - Current it human resources ............................................................ 15
Table 3 – Number of active projects in 2006, according to funding source .......... 17
Table 4 – Number of published works in 2007................................................. 18
Table 5 – Total operational income in 2006 .................................................... 19
Table 6 – List of major income sources during 2006 ........................................ 19
Table 7 – List of major costs in 2006 ............................................................. 20
Table 8 – Main asset changes in 2006 ........................................................... 20
Table 9 – Overview of human resources in the Wireless Communication Area...... 21
Table 10 – Permanent collaborators working in the Wireless Communications Area
......................................................................................................... 25
Table 11 – Non-permanent collaborators working in the Wireless Communications
Area .................................................................................................. 28
Table 12 – Number of active projects in the Wireless Communications Area in 2007
......................................................................................................... 41
Table 13 – List of Final Year Projects running in the Wireless Communications Area
during 2007 ........................................................................................ 70
Table 14 – List of MSc Theses running in the Wireless Communications Area during
2007.................................................................................................. 76
Table 15 – List of PhD Theses running in the Wireless Communications Area during
2007.................................................................................................. 80
Table 16 – Overview of human resources in the Optical Communications Area ...113
Table 17 – Permanent Collaborators working in the Optical Communications Area
........................................................................................................115
Table 18 – Non-permanent Collaborators working in the Optical Communications
Area .................................................................................................116
Table 19 - Number of active projects in the Optical Communications Area in 2007
........................................................................................................123
Table 20 - List of Final Year Projects running in the Optical Communications Area
during 2007 .......................................................................................145
v
Table 21 - List of MSc Theses running in the Optical Communications Area during
2007.................................................................................................148
Table 22 - List of PhD Theses running in the Optical Communications Area during
2007.................................................................................................151
Table 23 – Overview of human resources in Networks and Multimedia Area .......169
Table 24 – Permanent Collaborators working in the Networks and Multimedia Area
........................................................................................................172
Table 25 – Non-permanent Collaborators working in the Neteworks and Multimedia
Area .................................................................................................177
Table 26 – Number of active projects in the Networks and Multimedia Area during
2007.................................................................................................197
Table 27 – List of Final Year Projects running in the Networks and Multimedia Area
During 2007.......................................................................................222
Table 28 - List of MSc. Theses running in the Networks and Multimedia Area During
2007.................................................................................................227
Table 29 - List of PhD Theses running in the Networks and Multimedia Area During
2007.................................................................................................230
Table 30 – Overview of the human resources in the Basic Sciences ans Enabling
Technologies Area...............................................................................267
Table 31 – Permanent Collaborators working in the Basic Sciences and Enabling
Table 32 – Non-permanent Collaborators working in the Basic Sciences and
Enabling Technologies Area ..................................................................271
Table 33 – Number of active projects running in the Basic Sciences and Enabling
Table 34 – List of Final Year Projects running in the Basic Sciences and Enabling
Technologies Area during 2007 .............................................................305
Table 35 – List of MSc Theses running in the Basic Sciences and Enabling
Table 36 – List of PhD Theses running in the Basic Sciences and Enabling
vi
ANNUAL REPORT 2007 - INTRODUCTION
1. INTRODUCTION
1.1 History
Instituto de Telecomunicações (it) is a private, not-for-profit organisation, an
association of five institutions with experience and traditions in research and
development in the field of Telecommunications:
• Instituto Superior Técnico (IST);
• Universidade de Aveiro (UA);
• Faculdade de Ciências e Tecnologia da Universidade de Coimbra (FCTUC);
• Portugal Telecom Inovação, (PTIn)
• Nokia Siemens Networks S.A.
it is organised around three sites: one in Aveiro, in the University Campus, another
in Coimbra, in Branch II of the University of Coimbra and the third one in Lisbon, in
Instituto Superior Técnico. In addition there is an external laboratory in Covilhã, in
the University of Beira Interior, and two delegations one in Leiria, in the “Escola
Superior de Tecnologia e Gestão” of the Leiria Polytechnic (IPL) and another one in
Lisbon, in Instituto Superior de Ciências do Trabalho e da Empresa (ISCTE).
Setting up of it was the result of a 1.5 billion escudos (about 7.5 million Euros)
grant from Programme CIÊNCIA, through three contracts signed in 1991. This
investment enabled new infrastructures to be built and research laboratories to be
equipped at each site.
Installation was concluded in Aveiro in 1993 and in Lisbon and Coimbra in 1994.
Since 1993, it activities proceed regularly.
it statutes were first approved in 1992, modified in 1997 and modified again in
2003. New site statutes deriving from it statutes were approved and implemented
in 2005.
Key developments in 2007 are highlighted ahead. Details are included in the
sections dealing with each of the research areas.
7
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 (after legal certification) are subsequently
submitted to the General Assembly for approval.
The General Assembly met formally twice. The first meeting was held on March 30,
in the Meeting Room of the Lisbon site, to discuss and aprove the 2006 Annual
Report and Accounts. The second meeting took place on December 19, in the
Meeting Room of the Coimbra site, to approve the Work Plan and Budget for 2008.
The Research Group Coordination Committee also met twice during 2007. On the
first meeting, held on March 9, at Hotel da Lezíria (Vila Franca de Xira), the Draft
Proposal of the 2006 Annual Report, was discussed and received a favourable
opinion. The coming it evaluation was discussed and basic guidelines to prepare it
were agreed upon. Scientific productivity was debated and measures to improve it
were presented with emphasis on identifying non productive it members. On the
second meeting, held on December 6, in the meeting room of the Aveiro site the
Work Plan and Budget for 2008, was discussed and received a favourable opinion.
The outcomes of eight internal projects, funded under the IT Laboratório Associado
contract were presented and discussed.
The Board of Directors met once a month.
8
The usual meeting with the Advisory Committee, foressen for 2007, is now
scheduled for March 6 and 7, 2008.
1.3 Highlights of 2007
For many reasons 2007 was, a good year, a very good year for it.
Firstly the scientific output reached a new peak, when the total number of people
involved in S&T activities (researchers plus PhD students) was kept almost the
constant. Two of it researchers were elevated to the rank of IEEE fellows, thus
underlining the quality and the relevance of their work. There was also a very large
increase in the number of MSc. (from 31 to 74) even if this increased is partly due
to the Bolonha process.
Secondly, funding was, for the first time in quite a few years, plentiful and timely.
FCT made good on its promises both at the IT – Laboratório Associado contract and
on the first payments for the new contracts. FCT also started closing many 2000
and 2001 projects thus enabling it to received the last payments for these projects
the activities of which have long been finished. FCT granted it an extension of the
IT – Laboratório Associado contract, until June 2008, thus not only guaranteeing
funds for the first 6 months of 2008, when the new structural fund programmes are
not yet available, but also prolonging this very important contract and providing a
bridge for what we expect to be the new associated laboratory contract. Contrary to
our initial expectations, it was not evaluated during 2007, a process which is now
foreseen for the Autumn of 2008.
Last, but by no means least, it was officially exempt from taxes, from 1995
onwards, a complex process started in 1997.
During 2007, it (Lisbon) was subject of a substantive audit, concerning the IT –
Laboratório Associado project.
9
Highlights of 2007 were:
•
A new delegation was opened, in Lisbon, at the premises of Instituto
Superior de Ciências do Trabalho e da Empresa (ISCTE).
•
Following the CIENCIA 2007 programme, it was awarded 5 new postdoctoral positions, in scientific domains, not included in the IT – Laboratório
Associado contract. The corresponding calls were issued and 4 candidates
were selected: one in Radioastronomy, one in Optics, and two in Security
and Quantum Information. The call in Sensor Networks had no candidates
and will like ly be repeated soon.
•
The 8 contracts for laboratory re-equipment were completed and the
equipment was received and installed.
•
it was very successful in the ICT (7th Framework Programme) first two calls:
17 new projects, of which one as the coordinator.
•
it was also very successful in the FCT-2006 call for proposals: 31 new
projects. it acceptance rate was near 1:2, much higher than the general
acceptance rate.
The number of scholarships increased again in 2007, reaching an all time level. This
is an important step in improving it performance and impact.
During 2007, 102 nationally funded and 30 internationally funded projects were
active, as shown in section 2.2. As in previous years, involvement of it researchers
particularly from the Lisbon site in European Commission funded projects were
carried out through it associates due to current rules of participation.
During 2007, it received the following visits:
•
Delegation of the University of Macau, Lisbon, March 16
•
Delegation of the NATO, WGNTE/COM, Aveiro, April 26
•
Vice-President of ETRI, Lisbon, May 9-11
•
Head of Strategic Marketing, Ericsson AB, Lisbon, May 9—11
•
President of ISCTE, Lisbon, May 22,
10
To reflect it 2007 activity some tangible objectives were defined in the Work
Programme and Budget for 2007. These objectives together with the achieved
values are given in Table 1
Graduate and post-graduate
Foreseen
Achieved
Final year projects
---
68
MSc Theses
40
76
PhD Theses
20
15
Publications:
Foreseen
Achieved
Books and Book Chapters
20
25
Papers in Journals
120
142
Papers in Conference Proceedings
300
441
activities:
Table 1 - Foreseen and achieved scientific output in 2007.
Achieved scientific output exceeded our forecast, both in papers in journals and in
conference proceedings.
The number of concluded PhD theses falls short of the expected value, showing that
supervisors systematically underestimate time requirements. In contrast the
number of expected and concluded MSc theses far exceeds our estimate. This is
partly due to the impact of the Bolonha process.
It co-authored 6 patent applications in 2007.
it hosted the following national and international events (refered by date):
•
Seminar on Developing Real-Time Embeded Systems, in Lisbon, January 22,
with about 30 participants;
11
•
Tutorial on Noise and Shielding, in Lisbon, January 22, with about 30
participants;
•
Tutorial on Medical Instrumentation, in Lisbon, January 24, with about 30
participants;
•
Tutorial on Satellite Systems Design, in Lisbon, January 25, with about 30
participants;
•
Seminar on Solutions for Mobile TV, in cooperation with Rhode & Schwarz, in
Aveiro, January 24, with about 30 participants
•
Seminar on Information-theorectic security in wireless networks: from
theory to practice, in Oporto, in March 30, with 30 participants
•
Conftele2007, 6th Conference on Telecommunications, in Hotel Atlântico
Golfe, Peniche, Portugal , on May 9—11, with about 200 participants
•
V Symposium On Enabling Optical Networks, in Aveiro, June 29, with 50
participants (29-06-2007)
•
IEEE Symposium on Computers and Communications (ISCC’07), in Aveiro,
July 1 —4, with about 50 participants
•
IV Seminar on Muti-Gigabit Networks, in Aveiro, July 18, with 50
participants
•
Workshop on “Mobile WIMAX”, organized in co-operation with Academia das
Ciências de Lisboa, Academia de
Engenharia and Ordem dos Engenheiros
which took place at the ISCTE Auditorium in Lisbon, Setember 27, with
about 250 participants
•
Workshop on Recent Advances in Distributed Video Coding, in Lisbon
November 6, with about 20 participants
•
26th Picture Coding Symposium (PCS2007), in Lisbon, November 7—9, with
about 220 participants
•
Course on “Human Exposure to Electromagnetic Radiation in Mobile
Communications”, in Lisbon, November 30, with about 20 participants.
During 2007 it researchers were awarded the following prizes:
•
Pedro, J; was elevated to the grade of IEEE Fellow for his work and scientific
contributions to nonlinear distortion analysis of microwave devices and
circuits;
12
•
Pereira, F.; was elevated to the grade of IEEE Fellow, for contributions to
object-based digital video representation technologies and standards;
•
Figueiredo, M. A. T., UTL/Santander Totta Scicentic Award in the field of
Electrical Engineering and Computer Science;
•
J. P. Oliveira, M.A. T. Figueiredo, and J. Bioucas-Dias; Best paper award at
the 3rd IAPR Iberian Conference on Pattern Recognition and Image Analysis,
for the paper "Blind estimation of motion blur parameters for image
deconvolution";
•
Fernandes
T.;
Caldeirinha
R.;Best
Radiopropagation
Poster
Award,
EUCAP'07, “Modelling Radiowave Propagation through Vegetation media:a
Comparison between the RET and dRET models”, Edinburgh, United Kingdom
•
Monteiro, F.; Best paper award at the European Conference on Wireless
Technology, Germany, for the paper "Euclidean Distances in Quantized
Spaces with Pre-stored Components for MIMO Detection;
•
Teixeira, A.; Ferreira, A.; Monteiro, P.; Best paper award at the OECC/IOOC
International Conference, Japan, for the paper “40 Gb/s All.Optical MultiWavelength Conversion via a Single SOA-MZI for WDM Wavelength
Multicast”;
•
Jesus, V.; Sargento, S.; Corujo, D.; Sénica, N.; Almeida, M.; Aguiar, R.;
Best paper award at the 12th IEEE Symposium on Computers and
Communications, Portugal, with the paper “Mobility with QoS Support for
Multi-Interface Terminals: Combined User and Network Approach”;
•
Abreu, A.; one of three awards at the 2007 edition of the Scientific
Partnership for Innovation, promoted by IAPMEI, Portugal;
•
Guterman, J.; Best student paper award at Conftele2007, Portugal, with the
paper “Back-to-back E-Shaped Patch: Integration of a Novel Dual-Band
Quasi-Omnidirectional Antenna into Laptops”
•
Cardoso, J.; First prize of the Portuguese Foundation for Communications for
the work “Resource Management in Fixed Digital Telecommunication
Systems”.
Some of the activities mentioned in detail in Annexes are closely interconnected
with activities carried out by it researchers in the scope of their universities or
polytechnics. Their inclusion in this Report is merely for the record.
13
14
ANNUAL REPORT 2007 – KEY IT INDICATORS
2. KEY IT INDICATORS
2.1 Human Resources
Position
Aveiro
Coimbra Lisbon
Total
Professor Emeritus
0
0
3
3
Full Professor
6
4
10
20
Associate Professor
6
6
19
31
Assistant Professor
23
23
60
106
Post. Doc.
7
0
9
16
Coordinator Professor
0
5
2
7
Assistant Lecturer
0
11
0
11
PhD Student
24
18
71
113
MSc Student
8
11
22
41
Researcher
15
2
9
26
TOTAL
89
80
205
374
Table 2 - Current it human resources (excluding administretive staff)
(The number of elligible PhD holders, for funding in 2007 is 183)
15
2.2 Projects
Funding Agency
Number
AdI
2
ADI via Telesal Consortium
1
ADI, Siemens Networks SA
2
ADI, German Aerospace (DLR)
1
Ciência Viva
1
CRUP
2
DSIC / Ministerio de Educación y Ciencia – Espanha
1
ESA
4
ESF
6
EU
1
EU / IST Programme
15
EU, TOK-IAP
1
EU-FP7 ICT
3
FCT / ESA
1
FCT / POCI
8
FCT / POCTI
1
FCT / POSC
19
16
Funding Agency
Number
FCT / POSI
1
FCT/PTDC
25
FLAD
2
GRICES
2
GRICES/CNR
1
ICP / ANACOM
1
INSTICC
1
Internal
5
INTERREG III-B
1
IT/LA
17
JustBit
1
Optimus, TMN, Vodafone
1
PT Inovação
3
Portuguese Navy
1
Nokia SIEMENS Networks SA
2
Telesal
1
Table 3 – Number of active projects in 2007, according to funding source
17
2.3 Publications
Books Journals
25
142
Conferences
MSc Theses PhD Theses TFC
441
76
15
68
Table 4 – Number of published works in 2007
"Books”- Fully authored books, Editor books, and book chapter contributions.
"Journals”- Papers in International refereed journals.
"Conferences”- Communications in International and National refereed conferences.
"MSc and PhD Theses”- Concluded dissertations.
"TFC”- Concluded student Final Year Projects
18
ANNUAL REPORT 2007 – FINANCIAL OUTLINE
3. FINANCIAL OUTLINE
Operational income during 2007 totalled 6 007.1 k€, distributed as indicated in
Table 5. Major income sources (clients of services and sources of subsidies) are
detailed in Table 6. Costs in 2007 totalled 4 625.6 k€, as partially indicated in Table
7. Main asset changes in 2007 are listed in Table 8.
Sources of Income
Amount [k€]
Services to third parties
1 260.3
Subsidies
3 641.1
Other
1 105.7
TOTAL
6 007.1
Table 5 – Total operational income in 2007
Major clients of services
Amount [k€]
PT Inovação
418.1
Nokia Siemens
230.8
Brisa
97.6
TMN
90.0
Main sources of subsidies
Amount [k€]
Fundação para a Ciência e a Tecnologia
2 494.1
Commission of the European Communities
750.2
Agência de Inovação
218.0
Table 6 – List of major income sources during 2007
19
ANNUAL REPORT 2007 – FINANCIAL OUTLINE
Costs
Staff
Amount [k€]
1 210.1
Management costs
25.6
Scholarships
813.2
Missions
771.8
Books and journals
60.2
Consumables
190.6
Structural costs
674.6
Table 7 –Major costs in 2007
Assets
Decrease in tangible assets
Amount [k€]
1 223.0
Depreciation
951.7
New Technical and Scientific Equipment
893.2
Table 8 – Main asset changes in 2007
20
ANNUAL REPORT 2007 – WIRELESS COMMUNICATIONS
4. RESEARCH AREAS
4.1 Wireless Communications
4.1.1
Area Coordinators
•
Carlos Cardoso Fernandes
•
José Carlos Pedro until July 2007 and Nuno Borges de Carvalho from August
2007
4.1.2
Human Resources
Overview
Degree
Aveiro
Coimbra
Lisboa
Professor Emeritus
0
0
2
Full Professor
2
0
4
Associate Professor
4
0
7
Assistant Professor
9
1
20
Post. Doc
3
0
1
PhD Student
5
0
25
MSc Student
2
0
12
Graduate
2
1
5
27
2
76
TOTAL
Table 9 – Overview of human resources in the Wireless Communication Area.
21
Permanent Collaborators
Name
Degree
Position
Group
Carlos Salema
Agregação
Emeritus
RMOM - Lx
Mário Lança
Agregação
Emeritus
RMOM - Lx
Afonso Barbosa
Agregação
Full Professor
RMOM - Lx
Américo Correia
Agregação
Full Professor
RCS
Augusto Albuquerque
Agregação
Full Professor
RCS
José Carlos Pedro
Agregação
Full Professor
RMOM - Av
José Leitão
Agregação
Full Professor
CTPR
José Neves
Agregação
Full Professor
RMOM - Av
Carlos Fernandes
Agregação
Full Professor
RMOM - Lx
João Costa Freire
Agregação
Associate Professor
RMOM - Lx
Luís Correia
Agregação
Associate Professor
RMOM - Lx
António Alves Moreira
PhD
Associate Professor
RMOM - Lx
Atílio Gameiro
PhD
Associate Professor
RMOM - Av
Carlos Paiva
PhD
Associate Professor
RMOM - Lx
Carlos Sá da Costa
PhD
Associate Professor
RCS
Francisco Cercas
PhD
Associate Professor
RCS
João Nuno Matos
PhD
Associate Professor
RMOM - Av
22
Name
Degree
Position
Group
José Rocha Pereira
PhD
Associate Professor
RMOM - Av
Nuno Borges Carvalho
PhD
Associate Professor
RMOM - Av
Adão Silva
PhD
Assistant Professor
RMOM - AV
António Navarro
PhD
Assistant Professor
RMOM - Av
António Rodrigues
PhD
Assistant Professor
RCS
António Topa
PhD
Assistant Professor
RMOM - Lx
Armando Rocha
PhD
Assistant Professor
RMOM - Av
Custódio Peixeiro
PhD
Assistant Professor
RMOM - Lx
Fernando Fortes
PhD
Assistant Professor
RMOM - Lx
Fernando Velez
PhD
Assistant Professor
RCS
Fernando Nunes
PhD
Assistant Professor
CTPR
Filipe Cardoso
PhD
Assistant Professor
RMOM - Lx
Francisco Sena da Silva
PhD
Assistant Professor
CTPR
João Carlos Silva
PhD
Assistant Professor
RCS
João Gil
PhD
Assistant Professor
RMOM- Lx
João Vaz
PhD
Assistant Professor
RMOM - Lx
Jorge Manuel Nunes Pereira
PhD
Assistant Professor
RMOM - Lx
Jorge Torres
PhD
Assistant Professor
RMOM - Lx
Jorge Costa
PhD
Assistant Professor
RMOM - Lx
23
Name
Degree
Position
Group
José Bioucas Dias
PhD
Assistant Professor
CTPR
José Nascimento
PhD
Assistant Professor
CTPR
José Sanguino
PhD
Assistant Professor
CTPR
Maria João Rosário
PhD
Assistant Professor
RMOM - Lx
Mário Silveirinha
PhD
Assistant Professor
RMOM – Co
Mário Marques Silva
PhD
Assistant Pofessor
RMOM – Lx
Manuel Dinis
PhD
Assistant Professor
RMOM - Av
Nuno Souto
PhD
Assistant Professor
RCS
Pedro Miguel Lavrador
PhD
Assistant Professor
RMOM – Av
Pedro Pinho
PhD
Assistant Professor
RMOM - Av
Paulo Marques
PhD
Assistant Professor
CTPR
Pedro Santos
PhD
Assistant Professor
RMOM - Lx
Rafael Caldeirinha
PhD
Assistant Professor
RMOM – Co
Victor Santos
PhD
Assistant Professor
RMOM - Av
Telmo Reis Cunha
PhD
Assistant Professor
RMOM - Av
Telmo Fernandes
PhD
Assistant Professor
RMOM - Av
Chanaka Gunaratne
PhD
Pos-Doc
RMOM - Av
Jonathan Rodriguez González
PhD
Pos–Doc
RMOM - AV
Martijn Kuipers
PhD
Pos-Doc
RMOM - Lx
24
Name
Degree
Position
Group
PhD
Pos-Doc
RMOM - Av
Lúcio Ferreira
Graduate
PhD Student
RMOM - Lx
Mónica Rute Antunes
Graduate
MSc Student
RMOM - Lx
Graduate
MSc Student
Graduate
Researcher
Eduardo Lima
Graduate
Technician
RMOM - Lx
Ricardo Abreu
Graduate
Technician
RMOM - Av
Rui Paulo
Graduate
Technician
RCS
Pedro Miguel Cabral
Daniel Sebastião
Diana Ladeira
RMOM - Lx
RMOM - Lx
Table 10 – Permanent collaborators working in the Wireless Communications Area
25
Other Collaborators
Name
Degree
Position
Group
Alexandre Passos de Almeida
MSc
PhD Student
RCS
António Serrador
MSc
PhD Student
RMOM - Lx
Carla Oliveira
MSc
PhD Student
RMOM - Lx
Bruno Coelho
MSc
PhD Student
RMOM - Lx
Fernando de Sousa
MSc
PhD Student
CTPR
Fernando Azevedo
MSc
PhD Student
RMOM - Lx
Francisco Monteiro
MSc
PhD Student
RCS
Gonçalo Valadão Matias
MSc
PhD Student
CTPR
Jerzy Guterman
MSc
PhD Student
RMOM - Lx
João Ferro
MSc
PhD Student
RCS
João Eira
MSc
PhD Student
RCS
João Paulo Martins
MSC
PhD Student
RMOM - Av
João Canto
MSC
PhD Student
RMOM - Lx
João Tavares
MSc
PhD Student
RMOM - Av
Luís Miguel Mendes
MSc
PhD Student
RMOM - Lx
Luís M. Borges
MSc
PhD Student
RCS
Luísa Caeiro
MSc
PhD Student
RMOM - Lx
PhD Student
RMOM - Lx
Marco Ribeiro
MSc
26
Name
Degree
Position
Group
Miguel Campilho
MSc
PhD Student
RMOM - Lx
Nuno Cota
MSc
PhD Student
RCS
Nuno Figueiredo
MSc
PhD Student
RMOM - Lx
PhD Student
RCS
Orlando Cabral
MSc
Pedro Sebastião
MSc
PhD Student
RCS
Pedro Vieira
MSc
PhD Student
RCS
Sara Teodoro
MSc
PhD Student
RMOM - Av
PhD Student
RMOM - Lx
PhD Student
RMOM - Av
Sérgio Matos
MSc
Susana Mota
MSc
Carla Medeiros
MSC
Researcher
RMOM - LX
António Tavares
Graduate
PhD Student
RMOM - Av
Henrique Quaresma
Graduate
PhD Student
RMOM - Lx
João Eira
Graduate
PhD Student
RCS
Bárbara Gabriel
Graduate
MSc Student
RMOM - Av
Carlos Mendes
Graduate
MSc Student
RMOM - Lx
David Antunes
Graduate
MSc Student
RMOM - Lx
Daniel Santos
Graduate
MSc Student
RMOM - Lx
Gonçalo Carvalho
Graduate
MSc Student
RMOM - Lx
Gonçalo Carpinteiro
Graduate
MSc Student
RMOM - Lx
27
Name
Degree
Position
Group
João Angeja
Graduate
MSc Student
RMOM - Av
João Lopes
Graduate
MSc Student
RMOM - Lx
João Vinagre
Graduate
MSc Student
RMOM - Lx
Joaquim Oliveira
Graduate
MSc Student
RMOM - Lx
José Cardoso
Graduate
MSc Student
RMOM - Lx
MSc Student
RCS
MSc Student
RMOM - Av
MSc Student
RMOM - Lx
MSc Student
RMOM - Lx
MSc Student
RMOM - Lx
MSc Student
RMOM - Lx
MSc Student
RMOM - Lx
MSc Student
RCS
MSc Student
CTPR
MSc Student
RMOM - Av
Researcher
RMOM - Lx
José Velez
Luís Carvalho
Luis Salvador
Miguel Bacelar
Mónica Antunes
Pedro Brás
Pedro Baptista
Rui Manuel Pedro Costa
Teresa Ferreira
Valdemar Monteiro
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
António Abreu
Graduate
Ricardo Abreu
Graduate
Sérgio Rebelo
Graduate
Researcher
Researcher
RMOM - Av
CTPR - CO
Table 11 – Non-permanent collaborators working in the Wireless Communications Area
28
4.1.3
Summary of Research Achivements
Research work in the Wireless Communications Scientific Area of it covers the main
aspects related to the air interface in wireless communications and supporting
technologies, including hardware/software. Activities fall within the following five
general topics:
-
Antenna Analysis and Design;
-
Wireless Circuits and Devices;
-
Waves and Propagation;
-
Transmitting and Receiving Systems;
-
Radio Networks.
Antenna Analysis And Design
Work on antennas followed two main streams: personal small-terminal antennas
and antennas for other applications at frequencies typically below 6 GHz, and
antennas for millimeter wave applications, namely for the space segment. Both
topics involved a parallel activity on EM numerical modeling code development. The
work on antennas has been carried out in the framework of ACE Network of
Excellence (ACE NoE), COST Action IC0603 (ASSIST – Antenna Systems & Sensors
for Information Society Technologies), ESA funded ILASH project, and FCT funded
projects R-Meta project and EBGCOM project.
Small terminal antennas
In the framework of ACE NoE activities, work has continued on the development of
new antenna configurations adequate for laptop PC integration or for integration
into small mobile terminals (handsets and PDAs). These antennas comply with
multiple-band specifications (ex. GSM1800, UMTS, IEEE 802.11b/Bluetooth and
IEEE 802.11a standards) and with the possibility of using these antennas with
MIMO antenna techniques. The study has included the influence of antenna location
on the terminal, correlation and mutual coupling effects between multiple elements
in the same terminal, laptop casing effects, and assessment of human exposure to
laptop antenna radiation through evaluation of SAR.
29
Different antenna configurations have been considered in the above studies, based
on single and multi-feed printed patch antennas with slots or on the innovative
omnidireccional wrapped microstrip antenna. Antenna prototypes have been
fabricated and experimentally tested, including the cases where the antenna is
integrated into a laptop.
Another studied approach for multi-band operation was based on geometrically
reconfigurable antenna structures using MEMS, in the framework of R-META
project. The study had especial focus on the establishment of adequate numerical
models to merge the antenna EM analysis with the RF circuit analysis of the
antenna plus the Pin or MEMS to take into account not only MEMS switching RF
behavior but also packaging effects. Commercial 3D EM numerical modeling codes
and microwave circuit analysis codes were explored for this analysis which was
validated by prototype construction and full experimental tests.
Attention has been dedicated also to UWB antennas, with the goal of size reduction,
minimum pulse distortion and stable radiation pattern shape and polarization. A
new printed crossed exponential tapered-slot antenna configuration was evaluated
by simulation and experiments on a prototype.
Millimeter-wave antennas
Activity on millimeter wave antennas was focused on shaped dielectric lens
antennas within ESA/ESTEC funded LASH project. The goal was to develop new
configurations of shaped integrated lens antennas favoring very high efficiencies
and ultra wide operation bandwidth (in the order or 100%) for radiometric
applications and quasi-optical imaging applications. Following previous studies,
several new integrated lens types and integrated feeds were designed (the latter
including mixer circuit), fabricated and successfully tested at 40 GHz and 60 GHz
bands.
Benchmarking actions continued in the framework of ACE NoE, between IT and
IETR/Univ which led to the development of innovative shaped lenses for data link
communications with LEO satellites at 26 GHz. Prototypes were fabricated and
successfully tested experimentally.
30
Other antenna studies
A successful antenna concept for “smart RFID” environments was introduced. The
new antennas were fabricated and tested in those environments with very
promising results. A patent is likely to be filed on these developments, in
collaboration with a local company.
Another research topic, related to the modeling and characterization of the extreme
attenuation effect of a thin film of rain water over antenna radomes at 26 GHz radio
links, was evaluated both by simulation and experimentally. The very high
permittivity of water makes the water layer thickness (in the order of 0.1 mm)
become resonant at these frequencies, adding extra attenuation to the well known
radio link attenuation by rain.
Numerical Codes for Antenna Analysis
An FDTD code for electromagnetic simulation of antennas, with user friendly
interface, was developed and successfully compared to commercial codes. The code
was written as a test bed for the study of specific algorithms and tools for antenna
analysis and design.
As for lens antenna analysis, the development in the framework of the ILASH
project of a dedicated design and optimization code – ILASH – was concluded. The
code, based on high frequency techniques (GO+PO) not only allows the design and
characterization of stand-alone lenses but also includes the possibility of studying
the combined behavior of lens + reflector assemblies. Genetic algorithms are used
for optimization of lens performance.
Wireless Circuits And Devices
Research work performed in this sub-area can be grouped under three general
topics, one related to microwave circuit design, another to computer aided design
of microwave/RF circuits and systems including simulation techniques and
system/device modeling, and, finally, a third one dedicated to wireless system
design. In all cases, the underlying applications fall within the wireless area.
31
RF and Microwave Circuit Design
Microwave and millimeter-wave circuits were developed using low cost SiGe MMIC
technologies. These included some wide band low noise amplifiers and complete
down converters, e.g., for LMDS systems operating at 28.5GHz. The validation of
the models used on the CAD circuit design has been under assessment, considering
the design and measurement phases of the various projects. From these, special
attention was paid to equivalent circuit models of spiral inductors, poly capacitors
and resistors implemented on both SiGe and Si CMOS technologies. Aspects
concerning high frequency on-wafer measurements up to 6GHz with silicon
substrates were also investigated.
Indeed, another important research area concerned CMOS RF circuits. Monolithic
integrated LC voltage controlled oscillators (VCO), phase-shift oscillators, mixers
and complete frequency synthesizers for frequencies up to 6GHz were designed on
CMOS 0.35um technology. Linear and switching (class-E) power amplifiers up to
6GHz were also designed. Higher frequency bands are also under study via the
design of RF front-end WLAN and Bluethooth transceivers, implemented on highperformance 0.18um and 0.09um CMOS substrates.
In addition, studies towards on-chip supply of RF CMOS systems were continued.
Several topologies - hard switching continuous and discontinuous conduction mode,
quasi-square wave (QSW) and quasi-resonant boost converters - were studied and
designed to be fabricated in CMOS technology, in order to meet the supply
specifications of a 1GHz tuning band LC VCO and a VCO PLL mixer. Experimental
results obtained on high inductance on-chip spiral inductors indicate that integrated
passives can be used as energy storage elements or as resonant passives for these
very-high frequency converters.
Studies on RF CMOS substrate characterization were continued to evaluate
substrate impedance and modeling as a function of distance between power
management and RF blocks. New CMOS isolation structures were studied and
fabricated and the results indicate improved isolation characteristics when
compared with the classic RF-CMOS guard-ring structures.
Finally, hybrid high power amplifiers were designed and implemented with GaN
HEMT devices, to assess the extracted nonlinear devices’ model accuracies and
usefulness for high-power/high-linearity circuit design.
32
Furthermore, a special attention was also paid to the development of dedicated
measurement methods for the intermodulation products of these PA circuits, and
thus accurately capture, model and minimize their nonlinear dynamic effects. In
this respect, the characterization of the PA memory effects was particularly
important because of the detrimental effects these PA nonlinear impairments may
have on PA pre-distortion linearizer circuits
Computer Aided Design Tools for RF/Microwave Circuits and Systems
As referred above, equivalent circuit models were obtained for spiral inductors, poly
capacitors and resistors on both MMIC/RFIC SiGe and CMOS technologies. In
addition
the
low
resistivity
of
Si
substrates
motivated
the
experimental
characterization of MMIC components and possible coupling between SoC subcircuits.
In what behavioural modelling activities at the system level are concerned, our
efforts have been devoted to formulate two different sets of pruned Volterra series
models. Although these constitute approximate attempts of system identification,
they are believed to still achieve a very good trade-off between accuracy of
response representation and complexity of model format and extraction. In fact,
despite their approximate nature, their predictive capabilities are not compromised
as long as the pruning procedure is directed by some form of a-priori physical
knowledge of the internal device operation. This led to two different models, one
extracted in the time domain via W-CDMA measurements and another one
extracted in the frequency-domain via swept separation-frequency two-tone
stimuli.
Furthermore, three other modelling works on passive intermodulation, UWB
systems’ modelling in presence of nonlinear distortion and the identification of
wireless modulated signals were also started.
Wireless System Design
A new DSRC (Dedicated Short Range Communication) system, for automatic
identification and toll purposes, at 5,8GHz band, was designed, fabricated and
tested, according to the European standards of the physical link and application
layers. Beyond the engineering objectives of this system, it also involved technical
33
innovation since a new receiver architecture was proposed to minimize the Doppler
effect.
Location and identification systems were also developed. A location system
supported on a WLAN network was conceived, implemented and tested, while
another one based on a RFID was investigated.
Waves and Propagation
Work in this sub-area includes radio propagation models for fixed-link systems, for
mobile systems and fundamental work in the area of elctromagnetics of complex
media with possible application to antennas and other relevant devices for wireless
supporting technologies. It also includes studies for EM exposure assessment.
Radiowave Propagation Modelling
In the mobile communications area, work has continued on MIMO channel
modelling, for different types of scenarios and cells. A MIMO statistical model was
developed
for
the
analysis
of
capacity
increase
in
heterogeneous
mobile
communication systems.
Work continued also on the modelling of radiowave propagation through vegetation
at microwaves and millimeter-waves. A discretised RET model which can overcome
the problem of having different vegetation blocks along a radio path has been
proposed: the vegetation block(s) were divided into smaller blocks and a discrete
based RET algorithm was applied to each block successively. Further work around
the same topic has been extended to 40 GHz, in view of BFWA applications. The
study was intended to improve the estimation and establishment of the input
parameters required by the RET model. In addition, this research intends to
investigate current approaches and develop new more accurate narrow and
wideband
channel
models,
and
fast
fading
models
to
characterize
signal
propagating through, around or scattered from vegetation under the effect of wind,
resorting both to theoretical investigations and experimental data gathering at 40
GHz.
In respect to Earth-Satellite propagation modeling, a beacon receiver was operated
successfully logging one additional year to the propagation database. The database
now comprises 3 years and there is a good chance that the recommended 5 years
34
data collection can be accomplished. The experimental cross polar discrimination
results were compared with the expected values calculated from measured drop
shapes (obtained within a cooperation work), showing good agreement. A first
reliable fade duration statistical data was obtained confirming the available models
with slightly different median values that nevertheless are dependent of fade slope.
Fade slope data is seen to conform also to models but only a pre-analysis was
made. Scintillation results reveal that the ITU model is over predicting scintillation
intensity for large time percentages and mainly during summer months.
A digital beacon detector was also developed. A digitized IF is subject to a digital
receiver signal processor that transfers the samples to a DSP. The DSP implements
a digital/software PLL loop and performs a coherent detection. Results of the
hardware alone are excellent and the global results of the system –including
software- are very good.
EM exposure assessment
In line with the public service part of IT mission, the MONIT project continues its
risk communication activity on public exposure to electromagnetic radiation. The
project is sponsored by all Portuguese mobile operators. The project contributes for
public awareness of basic concepts related to electromagnetic radiation and
population exposure in mobile communications through a public website providing
on-line access to a repository of field level measurement at different sites all
around the Country, through direct information campaigns in public areas, and
through short-courses for non-engineers.
Electromagnetics of Complex Media
One very strong work topic is related to electromagnetics of complex media and
metamaterials, the artificial materials that are obtained by random or periodic
inclusion of metallic or dielectric particles into a host dielectric media to produce
unconventional electromagnetic properties not found in natural materials. These
materials may have application for antennas and other devices for wireless
applications. Work has continued along these lines in the R-META project for the
characterization of artificial ground planes formed by a dense array of metallic pins.
This structure can provide extreme values of the index of refraction, thus favoring
35
the
possibility
to
dramatically
reduce
the
substrate
thickness
in
antenna
applications.
Still related with metamaterials, novel sub-wavelength imaging devices were
studied, formed by nano rods. Low epsilon media was also investigated in view of
its applications to the design of nano insulators, cloaking structures, and to explore
other effects such as anomalous transmission of waves through sub-wavelength
narrow channels.
Work
pursued
electromagnetic
also
wave
on
the
analytical/numerical
propagation
in
characterization
three-dimensional
planar
of
the
waveguides
involving complex media and metamaterials with negative refractive index (NRI)
using a continuous effective media approach. For complex media, the work was
mainly focused on the analysis of the propagation characteristics of chiral H-guides:
surface-waves and leaky-wave modes and respective chirality dispersion influence.
For NRI material, work was essentially focused on the assessment of the effective
index method in the analysis of three-dimensional double negative (DNG)
metamaterial waveguides. Material dispersion models were used to describe
dispersive leaky-mode propagation in metamaterial nonradiative dielectric (NRD)
waveguides:
Propagation characteristics of DNG ridge waveguides: proper leaky mode dispersion
and propagation in double-negative (DNG) NRD structures was studied to explore
contra-directional coupling, leaky mode propagation, effects of material dispersion
and to assess the effective index method.
Transmitting and Receiving Systems
Research work performed within this sub-area includes two main topics: UMTS
capacity enhancement techniques and estimation techniques.
Radio systems
Efficient simulation methods were applied for wireless communication systems
using different modulation, coding and fading models with special emphasis on TCH
(Tomlinson, Cercas, Hughes) codes, development of a new UWB system using TCH
codes for both coding and synchronization aspects.
36
Work continued on OFDM modulations for usage in LTE (Long Term Evolution) of
UMTS with emphasis on the incorporation of Hierarchical constellations for MBMS
transmissions. The study also addressed and compared the use of implicit pilots
versus
data
multiplexed
pilots
for
channel
estimation
purposes
with
the
development of adequate receivers. Multipacket detector schemes were also
developed as a way to improve ARQ.
Another
topic
of
research
focused
on
pre-processing
schemes
to
achieve
interference cancellation, combined with Multiple Input Multiple Output (MIMO) in
(W-CDMA) based cellular communications. The MIMO schemes tend to achieve a
performance improvement by exploiting a higher level of diversity, by using M
transmit and N receive antennas. MIMO schemes normally have a post-processing
associated to it. The work performed focused on transferring this processing to the
Base Station (BS), in order to reduce the Mobile Station (MS) complexity, i.e.,
perform this processing following a pre-processing approach, in order to find a
solution for the downlink bottleneck. The mentioned approach was compared with
other MIMO and beamforming schemes, namely with the Vertical Bell Laboratories
Layered Space-Time (V-BLAST), with the regular MIMO post-processing detector
and with the Beam-Selective Transmit Diversity (BSTD), which can be seen as a
composite scheme where the Multiple Access Interference (MAI) reduction is
performed jointly with the exploitation of transmit diversity, without additional MS
complexity. It was concluded that, in most conditions, the MIMO pre-processing
scheme is a good choice, able to allow interference cancellation and provide
diversity, and hence, tending to lead to better performance and capacity, and
facing the requirements of the emergent cellular communication systems.
With respect to the new satellite ground infrastructure at IT-Lisbon, an intelligent
web interface is being developed to allow this station to be used remotely in
academic and research projects.
Estimation techniques
One contribution was focused mainly in theoretical and design aspects of
GPS/Galileo receivers taking into account new types of signals, namely the Binary
Offset Carrier (BOC) modulation. The following aspects were considered: a) Study
and development of alternative correlation techniques for the receiver code loop,
based on the gating concept, aiming to improve the multipath mitigation capability.
37
b) Development of new algorithms for the code delay estimation in difficult
scenarios, like highly-accelerative platforms or shadowed reception, using the
stochastic filtering framework.
Another topic is related to linear unmixing in hyperspectral data, continuing work
from previous years. The work is being extended to hyperspectral blind unmixing
using mixtures of Dirichelet sources. Studies also addressed phase unwrapping
using graph-cut optimization tools. PUMA approach was introduced for phase
unwrapping, which consists in solving a family of "convex" discrete problems with a
sequence of graph-cut computations. The idea of incremental graph-cuts is now
being explored to speed up the method. Other addressed topic was unsupervised
segmentation
for
oil
spills
detection
from
SAR
images
and
discriminative
segmentation based on Bayesian segmentation methods built on discriminative
classifiers, applied to high dimensional data. Work was done also on inverse
problems with non-quadratic regularization, with direct application in image
restoration, regression and classification. New fast algorithms were introduced and
many others were reinterpreted under the light of the majorization-minimization
framework.
Radio Networks
Traffic in wireless networks
Models for traffic generation for UMTS were established, considering a large variety
of services and applications, enabling a better estimation of traffic, as well as an
improved evaluation of load, together with mobility influence via developed models.
A simulator for the air interface of UMTS-FDD was developed, enabling the analysis
of traffic aspects as well as load and handover. Algorithms were developed for the
optimization of UMTS-FDD and TDD radio cellular networks.
Work
was
also
developed
on
the
impact
of
services
and
applications
characterization on multimedia multi-class traffic modelling and QoS (Quality of
Service). Initial research was performed on the identification of cross-layer
architectures for future wireless systems, by identifying QoS metrics adequate for
the purpose of link and Medium Access and Control layers optimization. Network
planning and optimization, which represents the synthesis and integration of the
two previous activities was extensively addressed through performance evaluation
38
(including simulation) in multi-service deployment scenarios. By using a system
level simulator for Enhanced UMTS, results were obtained for system capacity in
terms of supported throughput, for a given grade of service. These results were
used as an input to a cost/revenue model. A simulator was produced to extract
conclusions about blocking and handover failure probabilities on a vehicular
scenario, considering the burstiness of traffic, from single- to multi-service
situations, and from absence to presence of mobility.
Location methods for outdoor environments in wireless cellular networks were
studied, evaluated and developed, with two new location algorithms and a new
approach to the selection of the geographical search area for the terminal. One of
the new algorithms performed well in environments possessing high base station
density, which indicates its possible usefulness for urban scenarios.
Cellular planning
Cellular planning aspects for a WiMax (Worldwide Interoperability for Microwave
Access) point-to-multipoint wireless network to be developed in the region of Beira
Interior were also investigated. The potentialities of the GIS (Geographic
Information Systems) tools were explored to optimize base station location with
respect to line of sight in coverage, and a computer graphics cellular planning tool
is being developed for outdoor environments. The point-to-point component is also
being incorporated into the planning tool. Some practical demonstrators were
deployed, field trials are being held, and results for throughput and carrier-to-noise
ratio are being obtained (with the use of a tool that incorporates GPS information).
Radio resource management
For broadcast and multicast transmissions in a mobile cellular network, depending
on the communication link conditions some receivers will have better signal to noise
ratios (SNR) than others and thus the capacity of the communication link for these
users is higher. It was showed that in broadcast transmissions it is possible to
exchange some of the capacity of the good communication links to the poor ones
and the trade-off can be worthwhile. Possible methods to improve the efficiency of
the UMTS network are the use of multiple codes or multiple antennas both at
39
transmitter and receiver (MIMO) or non-uniform signal constellations (also called
hierarchical constellations). Each one is able to provide unequal bit error protection.
The High Speed Downlink Packet Access (HSDPA) of UMTS as a mean to deliver
MBMS multi-resolution video streaming was also studied with suitable packet
scheduler algorithms that try to guarantee the same bit rate to the users in order to
offer good fairness and capacity. Other point-to-multipoint schedulers and
algorithms were studied, including multi-code, non-uniform 16-QAM constellations,
MIMO, macro-diversity combining, hierarchical cell structures. For the use in
wireless sensor networks, a ultawideband low data rate system for the physical
layer was studied with a new power-aware algorithm at the MAC layer using power
control to reduce transmission power to a minimum with a significant reduction
against previous algorithms.
40
4.1.4
Running and Concluded Projects
Overview
Funding Agency
Number
ADI via Telesal Consortium
1
ADI,German Aerospace Center (DLR)
1
CRUP
2
ESA-ESTEC
1
ESF
3
EU
1
EU,IST Programme
6
EU-FP7 ICT
3
FCT/ESA
1
FCT/POSC
5
FCT/PTDC
4
IT/LA
6
1
Portuguese Navy
1
Telesal
1
TOTAL
37
Table 12 – Number of active projects in the Wireless Communications Area in 2007
41
Activity in Projects
Acron / Ref
LOPES
Title
Person Location
Funding
ADI via TELESAL Consortium
Descript.
The main objective of this project is to accomplish successful a system
that can help a museum administrator to know some important aspects
about the exhibits exposed in is museum. This are:
The exhibits that has more visitors.
The time spent by each visitor seeing the exhibit.
The pieces that has less visitors.
The number of visitors seeing the same exhibit at the same time.
Order the exhibits by type of visitors seeing them (child\adult,
male\female).
More important aspects will be implemented. With this useful
information the museum administrator can improve the quality of the
exhibits and
know which are replaceable or not.
The LOPES project is divided into three systems: localization system,
management system and multimedia system.
The localization system gives information about the position in the
museum of all the visitors. With this information the system can execute
some actions.
The management system is responsible to collect all type of information
given by the localization system. Plus, can configure the devices that is
used in the localization system, and configure the multimedia system.
The multimedia system acts like a picture and exhibit labeling and
interpretation information. Helps the visitors to understand better the
pieces.
42
Acron / Ref
VeXel / DLR/OCE0050
Title
Maritime Traffic Monitoring with TerraSAR-X
Funding
AdI,German Aerospace Center (DLR)
Descript.
The Objectives of the Project are the Following:
1 - Study the potentialities of TerraSAR-X stripMap and scanSAR
products to monitor maritime vessel traffic, namely to detect, to
estimate cinematic parameters, and to classify moving vessels.
2- Adapt and develop new methods and algorithms aimed at the
objectives listed above, taking advantage of the high geometric and
radiometric resolutions of TerraSAR-X, in comparison, for example, with
the ASAR and RADARSAR sensors.
3 - Build a prototype for for maritime traffic monitoring based on
TerraSAR-X data.
Acron / Ref
LaSiBeME / E-80/07
Title
Large Signal Measurements for Nonlinear Behavioral Model Extraction
Funding
CRUP
Descript.
With the recent advances on Wireless Communication Systems, the
spectrum occupancy has rise severely. This imposes a very restringing
limit on the modulation formats that should be used. As is well known,
higher values of spectrum efficiency imposes modulation formats of
non-constant amplitude, which are very demanding in terms of
linearity of Power Amplifiers, PA. In order to account for these
nonlinear effects on wireless communications, proper CAD/CAE tools
should be used. But in order to predict all the relevant information of a
system with CAD tools, some improved models describing the system
behaviour should be used. Those models could be divided into three
43
types, physical (completely physical based model), empirical (based on
some physical knowledge, but less complex that the physical solution)
and completely behavioural model based on input/output relations (in
this case the device under test is considered a black box).
Due to the fact that wireless systems have being more and more
complex, and thus includes a higher amount of components, the
simulation of those systems, had moved to (from?) the so called base
equivalent models, and thus to the complete behavioural model
description of components. Nevertheless if this is easily obtained for
linear components, it is more difficult for nonlinear ones. That is the
reason why a large amount of researchers are looking to this
behavioural model scientific area. But as in all modelling activities the
model process is not completed without a precise measuring of certain
parameters, in order to be able to extract the model parameters.
This project will be devoted mainly to this measuring approach, and
thus to the instrumentation needs for a certain behavioural model
parameter
extraction.
In
that
respect
new
approaches
to
the
measuring of amplitude and phase is fundamental, and this should be
done in the presence of complex forms of input signals, including the
well know one-tone sinusoidal input, two-tone, and more recently
multi-sine schemes.
Acron / Ref
SAPA
Title
Smart Active Printed Antennas
Funding
CRUP
Descript.
To implement an active antenna with Si MMICs.
44
Acron / Ref
ILASH / ESA-17514
Title
Integrated Lens Antenna Shaping
Funding
ESA-ESTEC
Descript.
ILASH project aimed at developing and delivering to ESA-ESTEC a
validated software tool for the design, analysis and optimization of high
permittivity circular symmetric integrated lens antennas (ILA) with
optimized coupling to incoming broadband on-axis beam, or to
narrowband off-axis beams in scanning applications – the ILASH tool.
The tool is especially tailored for the design and optimization of mmwave or sub-mm-wave shaped double-shell lenses that enable the
radiation pattern compliance with two simultaneous conditions selected
from a predefined list.
The experimental validation of the tool is based on scaled lens
prototypes operating between 40 GHz and 65 GHz.
Acron / Ref
ASSIST / COST IC0603
Title
COST IC0603 (ASSIST)
Funding
ESF
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
45
•
To increase public awareness of antenna related issues
Acron / Ref
COST2100
Title
Pervasive Mobile & Ambient Wireless Communications
Funding
ESF
Descript.
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 290
Title
Traffic and QoS Management in Wireless Multimedia Networks
Funding
ESF
Descript.
The main objective of the Action is to increase the knowledge on future
advanced Multiservice Wireless Networks (MWNs) MWNs and specifically
on traffic nature and behaviour and its impact on network architecture,
performance and planning. Special attention will be given to Quality of
Service and related aspects in both access networks and core networks
in the presence of mixed multimedia traffic. To accomplish this, new
analytical tools, software implementations and prototypes will be
developed and validated.
Action has been divided into four Working Groups (WGs).
Working
Group
Parameters
1:
Traffic
Estimation
in
Engineering,
Congestion
Packet-Switched
Mobile
Control
and
and
Wireless
Environment for 3G and beyond
46
Working Group 2: Specific issues and QoS for Future Packet-Switched
Mobile and Wireless Networks
Working Group 3: Network Planning and Architectures
Working Group 4: New Services and QoS Mobile Pricing
Acron / Ref
(HYPER-I-NET) / MRTN-CT-2006-035927
Title
Hyperspectral Imaging Network
Funding
EU
Descript.
The Hyperspectral Imaging Network (HYPER-I-NET) is a four-year
(2007-2010) FP6 Marie Curie Research Training Network designed to
build an interdisciplinary European research community focusing on
hyperspectral imaging activities.
Hyperspectral imaging is concerned with the measurement, analysis,
and interpretation of spectra acquired from a given scene (or specific
object) at a short, medium or long distance by an airborne or satellite
imaging spectrometer. Hyperspectral sensors are now able to produce
hundreds of images, corresponding to different wavelength channels, for
the same area on the surface of the Earth. Such wealth of spectral
information
applications,
has
opened
including
ground-breaking
environmental
and
perspectives
urban
in
monitoring
many
and
assessment, target detection for military and homeland defense/security
purposes, and risk prevention and response. The latter includes tracking
wildfires, detecting biological threats, and monitoring oil spills and other
types of chemical contamination.
The core strategy of HYPER-I-NET will be to create a powerful
interdisciplinary synergy between different domains of expertise within
Europe, and use it to break new grounds in areas related with
hyperspectral imaging. This will be achieved by organizing a well
structured multidisciplinary training programme that will cover all the
different aspects that comprise the hyperspectral data processing chain,
47
ranging from sensor design and flight operation to data collection,
processing, interpretation, and dissemination. As a result, the theme of
HYPER-I-NET is at the confluence of heterogeneous disciplines, such as
sensor design and calibration, aerospace engineering, remote sensing,
high
performance
computing,
image/signal
processing
and
Earth
observation related products.
The main objectives of HYPER-I-NET will be to:
1. Bridge the gap between sensor design and hyperspectral data
exploitation in remote sensing activities in Europe. This will be done by
defining a so-called standard hyperspectral processing chain;
2.
Develop
standardized
and
innovative
techniques/products
for
hyperspectral image analysis, taking into account specific requirements
introduced by these data sets (collection, storage, processing and
calibration);
3. Establish standardized data processing and validation/quality control
procedures in all the steps of the hyperspectral processing chain;
4. Integrate knowledge from different disciplines (e.g., sensor design,
data
processing,
contribution
to
computing,
the
scientific
development,
applications)
operation
and
and
their
exploitation
of
hyperspectral imaging systems;
5. Improve the cooperation and transfer of knowledge (ToK), from
Research Institutions, Universities and SMEs working on hyperspectral
imaging;
6. Create a powerful multidisciplinary synergy that will allow a more
solid integration of technical and scientific issues, building a true
interdisciplinary
network
relying
on
standardization
and
terminology.
48
joint
Acron / Ref
C-MOBILE / IST-2005-27423
Title
Advanced MBMS for the Future Mobile World
Funding
EU,IST Programme
Descript.
New RAN technologies and IMS to support future MBMS based on Long
term Evolution of 3GPP
Acron / Ref
Title
UNITE / IST-4-026906
Virtual
Distributed
Testbed
for
Optimisation
and
Coexistence
of
Heterogeneous Systems
Funding
Descript.
EU,IST Programme
UNITE will encapsulate the common features of cellular, wireless (3G,
WMAN, WLAN) and DVB broadcasting to provide a scalable, extendible,
evaluation and co-existence tool.
The UNITE platform aims to address the aforementioned research
challenges:
• Implementing an efficient, accurate and scalable Virtual Distributed
Testbed (VDT) to support cross-system and cross-layer optimization of
heterogeneous systems in a unified manner.
• Through the use of the VDT, to investigate, design and evaluate crosslayer and cross-system interactions, between next generation radio
protocols without neglecting important real-system details.
The existence of a Pan-European VDT is considered a true innovation and
will offer the following beneficial attributes on a European scale:
• Extendibility: Existing and future standards can be realized on the
UNITE platform.
• Modular design: An end-user transparent framework with 'plug and
play'
features
to
support
algorithmic
testing
in
a
Beyond
3G
heterogeneous environment.
• Open Interface: The open structure ensures that redeveloping and
49
extensions can easily be achieved.
• Scalability: The scale of the air-interface technologies can be configured
freely so that the cost of system devices can be minimized.
• Easy to update and maintain.
• Supports algorithmic design life-cycle optimization; the impact of the
software and hardware implementation methodology on protocol design
can be evaluated.
• A Framework to allow design and evaluation of cross-system and crosslayer optimization algorithms.
• UNITE framework will support a comprehensive iterative cross-layer
optimization methodology to attain an optimized radio access network
solution in view of E2E (End-to-End) performance.
Acron / Ref
Title
AROMA / IST-4-027567
Advanced
Resource
management
solutions
for
future
all
IP
heterOgeneous Mobile rAdio environments
Funding
EU,IST Programme
Descript.
The objective of the AROMA project is to devise and assess a set of
specific resource management strategies and algorithms for both the
access and core network part that guarantee the end-to-end QoS in the
context of an all-IP heterogeneous network.
Acron / Ref
ACE
Title
Antenna Center of Excellence
Funding
EU,IST Programme
Descript.
Develop network of excellence in the area of antennas
50
Acron / Ref
ACE / FP6-508009
Title
Antenna Centre of Excellence
Funding
EU,IST Programme
Descript.
This Network of Excellence is intended to increase the efficiency and
relevance of antenna research in Europe. It plans to acheive horizontal
integration by selecting, perfecting and regrouping for dissemination of
world level courses, documentation, software and test resources.
The Joint Research Programme (JRP) will provide vertical integration,
fostering university-industry co-operation and focusing research to
support Europe’s competitiveness and to limit duplications in 4 key
areas:
A. Millimetre wave antennas (Integrated, Meta-material based…)
B. Small terminal antennas (Miniaturised, using MEMS…)
C. Broadband antennas
D. Re-configurable antennas.
Acron / Ref
NEWCOM / FP6-IST-507325-2002
Title
Network of Excellence in Wireless Communications
Funding
EU,IST Programme
Descript.
NEWCOM aims at creating a European network that links in a
cooperative way a large number of leading research groups addressing
the Strategic Objective “Mobile and wireless systems beyond 3G”, a
frontier research area of the Priority Thematic Area of IST
51
Acron / Ref
4WARD / FP7 ICT-07-216041
Title
Architecture and Design for the Future Internet
Funding
EU-FP7 ICT
Descript.
The main objective of this project is the location of Wi-Fi and Bluetooth
TAGS in Wi-Fi and Bluetooth networks. Today’s network architectures
are stifling innovation, restricting it mostly to the application level while
the need for structural change is increasingly evident. The absence of
adequate facilities to design, optimize and interoperate new networks
currently forces a convergence to an architecture that is suboptimal for
many applications and that cannot support innovations within itself, the
Internet.
4WARD overcomes this impasse through a set of radical architectural
approaches built on our strong mobile and wireless background.. We
improve our ability to design inter-operable and complementary families
of network architectures. We enable the co-existence of multiple
networks on common platforms through carrier-grade virtualization for
networking resources. We enhance the utility of networks by making
them self-managing. We increase their robustness and efficiency by
leveraging diversity. Finally we improve application support by a new
information-centric paradigm in place of the old host-centric approach.
These solutions will embrace the full range of technologies, from fibre
backbones to wireless and sensor networks.
The 4WARD results will allow new markets to appear, redefining
business roles and creating new economic models. We will establish the
Future Internet Forum as a leading standards body, enabling these new
markets and opening them for old and new players alike, increasing
opportunities for competition and cooperation and creating new products
and services.
These goals can only be achieved by gathering a strong, industry-led
consortium of the leading operators, vendors, SME, and research
organisations, with the determination, skills, and critical mass to create
52
cross-industry consensus and to drive standardisation. The project is
designed for multiple phases; the first one will establish the core
concepts and technologies and last for two years. The planned effort of
about 2200 person months corresponds to the strategic importance of
this endeavour.
Acron / Ref
eMobility / FP7 ICT-2007-241089
Title
eMobility
Funding
EU-FP7 ICT
Descript.
Investigation of signal processing techniques for 4G MC-CDMA based
systems Telecommunications is experiencing major change. Sector
actors are searching for new strategies as globalisation, mergers,
convergence and new and disruptive technologies happen. The eMobility
Technology Platform was formed to address this challenge and has
almost 500 members. It has a track record of success in facilitating
consensus building.
The strategic objective of the eMobility CA project is to facilitate the
emergence of a common understanding, between the European sector
actors, leading to agreed road-maps and contributing to the global
competitiveness of the European telecommunications sector on the
following key challenges: the need to integrate the road-maps of the
mobile and wireless sector with those of the health, transport and the
environment sectors, the need to extend the eMobility Strategic
Research Agenda to cover new technologies, the need to support the
definition of a European perspective on the Future Internet, positioning
these views in the international context, and the need to build the
opportunities to use Structural Funds to develop leading edge markets
in Europe, promoting the take-up of the RandD output of collaborative
projects. The approach is based on the voluntary contributions of FP 7,
national, and COST Programmes projects and of eMobility members, to
53
the production of a series of recommendations, reports, road-maps and
events by the eMobility CA. The eMobility Steering Board has endorsed
the proposal. Support has been offered by a range of proposed and
existing projects. The eMobility CA project results will highlight the
collective recommendations of a representative body of European
expertise, on priorities for future multi-sector, mobile, wireless and
Future Internet R&D leading to increased momentum, critical mass and
effective use of scarce human and time resources in RandD activities.
123 person months of funded
effort will require a Community
contribution of 1.5 M Euro with 75% funding.
Acron / Ref
NEWCOM++ / FP7 ICT-2007-216715
Title
Network of Excellence in Wireless Communications ++
Funding
EU-FP7 ICT
Descript.
An NoE of medium size, greatly reduced from the initial NEWCOM
Consortium, formed by keeping the most committed and performing
partners, exploiting the successful integration tools that NEWCOM
designed and activated, and which is created for the purpose of
scientifically addressing medium/long term, complex, interdisciplinary,
fundamental research problems in the field of wireless networks,
focused towards identifying, posing in the right modelling perspective,
and at least partially characterizing the information-communication
theoretical limits of such networks and the algorithmic solutions that
make it possible to approach those limits.
54
Acron / Ref
OILSAR / PDCTE/CPS/49967/2003
Title
Oil Slick Surveillance Using ASAR and MERIS Dat
Funding
FCT/ESA
Descript.
The
project
aims
at
improving
state-of-the-art
oil
slick
detectors/classifiers by working out the following issues:
1. Combine ASAR and MERIS data to improve the classifier performance.
2. Adopt Bayesian region-based segmentation approaches using Markov
Random Fields, leading to effective segmentation of dark regions in SAR
images.
3. Use wind information derived from ASAR data and available on the
Wave Mode Ocean Wave Spectra (ASA_WVP_2P).
4. Incorporate recent results, according to which high order moments
(from the second on) of SAR images are informative with respect to
oil/water classification.
5. Adopt Bayesian Networks to fuse ASAR and MERIS data and to build
the classifier.
Acron / Ref
Title
GRINFOREST / POSC/EEA-CPS/57481/2004
A generic radio channel model for propagation in inhomogeneous forests
at 40 GHz
Funding
FCT/POSC
Descript.
This proposal aims to take forward the RET modelling work carried out
by the Principal Investigator (PI) under a UK consortium, which
identified a number of problems in the estimation and establishment of
the input parameters required by the RET model. In addition, this
research intends to investigate current approaches and develop new
more accurate narrow and wideband channel models through theoretical
55
investigations as well as experimental data gathering at 40 GHz in view
of BFWA applications. The influence of inhomogeneous vegetation in a
cluttered environment with respect to their influence and the radio
propagation path as well as their potential origin of interference within
networks and onto other networks will be addressed in this program.
Both narrow and wideband channel performances and fast fading
dynamics of signals propagating through, around or scattered from
vegetation will be modelled and included in the prediction tool, as these
are critical for quality of service, RF regulation and the assessment of
spectrum efficiency.
Acron / Ref
Title
CoLTeMEPAI / POSC/EEA-ESE/55739/2004
Compensation of Long Term Memory Effects in Power Amplifier
Intermodulation Distortion
Funding
FCT/POSC
Descript.
The main objective of this project is to propose newly design techniques
for PA in order to transform a dynamic PA in a memoryless one, mainly
by eliminating thermal and/or trapping low frequency behaviour’s.
This main goal will be divided into different objectives; first the correct
understanding of the thermal and trapping effects on nonlinear
intermodulation distortion will be studied.
Then with this knowledge some design techniques, based either on PA
intrinsic solutions, or on external compensation schemes will be
proposed.
Finally with these studies in mind, we hope to build a PA without
memory effects.
56
Acron / Ref
R-META / POSC/EEA-CPS/61887/2004
Title
Reconfigurable Low-profile Antennas Using Metamaterials
Funding
FCT/POSC
Descript.
The aim of the project is to design and theoretically characterize
reconfigurable metamaterial surfaces that can be used as ground planes
for low-profile antennas, although other relevant applications are
anticipated. Tunable elements are incorporated into the surface, such as
varactor diodes or micro-electro-mechanical systems (MEMS), to allow
that the resonance frequency, as well as the effective response of the
surface
(i.e.
the
effective
boundary
condition),
can
be
tuned
electronically.
Acron / Ref
CROSSNET / POSC/EEA-SRI/57503/2004
Title
Cross-Layer Design and Network Planning for B3G Systems
Funding
FCT/POSC
Descript.
After 3G mobile and wireless systems take-up, the research community
is now directing its interest towards unified ways of looking at system
design, optimisation, and QoS issues to satisfy the requirements of next
generation multi-service mobile and wireless IP-based networks.
Their implementation requires the development of IP QoS architectures
and mechanisms encompassing the various layers of the OSI Model to
cope with the new requirements. The basic idea to be pursued in this
project is that QoS provision in wireless networks, will require the joint
collaboration among physical, MAC, IP and transport layers; how it may
be done, and new definitions of cross-layer protocols are thus important
areas for collaborative studying and research.
As these multimedia communications systems will be wide- and
broadband (with data rates much higher than 3G ones), multi-service,
57
and multirate ones, the QoS provision for each service (within different
traffic classes), and the identification of suitable schemes to guarantee
high capacity in these heterogeneous environments are also of particular
concern in this project.
To achieve these goals the project is divided into three main areas:
- Traffic modelling and QoS, where traffic models appropriate to
characterise the different classes of services envisioned for B3G systems
are studied. Characterisation parameters and traffic models that
accounts for multi-rate applications will be used as an input of the
design and optimisation process.
- MAC definition and cross-layer design, where the use of the traffic
model
results,
and
proposals
for
architectures
using
cross-layer
information (CLI) to achieve QoS are investigated and assessed.
Research work will include the identification and transport of relevant
cross-layer information (CLI), the definition of a cross-layer (CL)
architecture framework, and Cross-layer strategies between PHY and
MAC/RRM.
- Network planning and optimisation, which represents the synthesis
and integration of the two previous activities by means of performance
evaluation (including simulation). Multi-service deployment scenarios,
with
simultaneous
support
of
multi-rate
multimedia
applications,
provides a framework for possible operation environments. Traffic
engineering aspects related to the measurement, modelling, and control
of multimedia multi-class traffic (e.g., related with mobile IP and micromobility issues) will also be addressed, as well as novel packet-switched
QoS architectures aspects, and their performance. The impact of
economic in systems optimisation will also be addressed.
Our methodology will be based both in modelling and simulation work
but network traffic measurements will also be performed.
Finally, it is important to highlight that this research programme is
challenging for both IT teams (Covilhã and Aveiro), and does constitute
an innovative area of research that will strongly contribute to “all-IP”
58
mobile and wireless communications research for B3G systems within
Europe.
Acron / Ref
Title
EBGCOM / POSC/EEA-CPS/60170/2004
Electromagnetic bandgap antennas and components for broadband
communications
Funding
FCT/POSC
Descript.
Electromagnetic bandgap (EBG) structures are microwave or millimetrewavescaled counterparts of photonic crystals. These devices are one-,
two-, or three-dimensional periodic structures in which propagation of
electromagnetic waves is not allowed in some frequency bands or
directions. This property can yield microwave devices with new
interesting characteristics with direct applications in communication
systems, in particular, wireless communications. The main objective of
this project is to design, develop and implement novel RF/microwave
components based on the EBG technology that find applications in
broadband communications.
Acron / Ref
ARNAGGS / PTDC/EEA-TEL/66918/2006
Title
Advanced Receivers and Navigation Algorithms for GPS/Galileo Signals
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
59
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.
Acron / Ref
SARMonitor / PTDC/EEA-TEL/71996/2006
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
Title
PHOTON / PTDC/EEA-TEL/72890/2006
Distributed and Extendible Heterogeneous Radio Architectures using
Fibre Optic Networks
Funding
FCT/PTDC
Descript.
Microwave power amplifier design methods and technologies for high
efficiency and linearity The overall goal is to research, validate and
demonstrate RoF as a key technology for dense wireless networks, with
proposals for efficient and scalable architectures and enhanced wireless
transmission
/
resource
management
techniques
exploiting
60
the
distributed nature of the environment provided by the infrastructure.
Specific objectives include:
• Research innovative capacity enhancement solutions which will
specifically address microscopic and macroscopic diversity concepts
using MIMO, intra-system dynamic resource allocation adopting a crosslayer design and interference cancellation
• Develop an hybrid (optical- wireless) simulation tool to evaluate the
impact of RoF on legacy and future networks.
• Implement a prototype including the electro-optic interfaces, remote
access units and antenna structures
• Develop realistic system level photonic models
• Design system interface solutions to evaluate the impact of smart
antennas and photonic models on legacy and future networks
• Photon Demonstration and optimization resulting in a set of design
guidelines
Acron / Ref
WiFiRx / PTDC/EEA-ELC/64368/2006
Title
Double-Band Multi_standard Frequency Front-End for WLAN aplications
Funding
FCT/PTDC
Descript.
The main objectives of this project are:
a) To build a highly integrated CMOS chip capable of receiving the RF
signals from the most important WLAN systems in Europe, namely, IEEE
802.11 a/b/g. Encapsulated and naked chips prototypes will be
fabricated. The naked chip prototypes will be tested chip-on-board (CoB)
and the encapsulated chips will be tested on a test board.
b) To gather the individual skills of our team concerning design and test
of individual blocks and with those skills build a wider system like a
receiver.
61
c) To study and solve issues related with design of RF systems on a
chip, namely, total power dissipation, occupied area, substrate injected
noise, and overall immunity to external and internal spurious signals.
For that the use of non-conventional and innovative solutions at block
level will be investigated.
d) To give the possibility of two PhD and one MSc students to access
0.18um CMOS Mixed Signal / RF technology in their works.
The main objective of the principal investigator is to develop an expert
team in radio frequency CMOS circuit and system design. The team past
experience is mainly at circuits level and with this project we are able to
give the next step to a wider system. As a consequence we will be
prepared for future demands that certainly will appear taking in mind
what is appending at national and international level.
Nowadays national companies are interested in RF CMOS communication
circuits. For that they are starting collaborations with university and
their research institutes. Also a strong demand for RF engineers is felt at
a national level.
After his PhD, the PI, which in the past worked in GaAs MMICs, moved
his research interest to RF integrated circuits in CMOS processes. In his
teaching activities he has created a chair about RF CMOS circuits design
offered to MSc and PhD courses.
In a near future projects, the goal will be the design of a complete
transceiver.
Acron / Ref
Title
ModEx / IT/LA/308/2005
This
project
aims
at
producing
the
necessary
algorithms
and
measurement set-ups for establishing a certain behavioral model format
of nonlinear dynamic systems found in common wireless likns and its
corresponding extraction laboratory bench.
Funding
IT/LA
62
Descript.
This
project
aims
at
producing
the
necessary
algorithms
and
measurement set-ups for establishing a certain behavioral model format
of nonlinear dynamic systems found in common wireless likns and its
corresponding extraction laboratory bench.
Acron / Ref
IRFDCMOS / IT/LA/305/2005
Title
Integration of high-frequency dc-dc converters in RF CMOS SoC
Funding
IT/LA
Descript.
The main objective of this multi-disciplinary proposal is the development
of RF CMOS Systems-on-chip (SoC) including resonant dc-dc converter
resorting to low cost CMOS processes. The referred high efficiency
converter should be capable of managing the power delivered by
rechargeable cells and converting it to suitable voltage levels to supply
other SoC functional blocks, namely RF and also sensitive analog blocks.
In this fully CMOS compatible monolithic solution, the converter devices
are switched above tens or hundreds of MHz, to allow the integration of
passive energy storage elements.
This will motivate the use of those solutions in a wide range of
applications, namely in battery operated portable equipment, like
displays, medical portable equipment, and especially in electronic
medical body implanted devices, where volume, efficiency and reliability
are crucial.
Acron / Ref
MobileMAN / IT/LA/296/2005
Title
Mobile IP for Broadband Wireless Metropolitan Area Networks
Funding
IT/LA
Descript.
This applied research project intends to design or plan fixed/portable
and mobile Wimax (Worldwide Interoperability for Microwave Access)
63
WMANs (Wireless Metropolitan Area Networks), pioneering implemented
in Portugal. Besides the benefits of its operation in the context of
university, hospital and urban environments it will be very useful for
demonstration and research purposes.
The project involves five main tasks:
1-Design and Development of IEEE 802.16 Microwave Links for
Fixed/Portable Communications.
2- Planning of a Cellular IEEE802.16e for Mobility Support.
3- Network Architectures for Interoperability and Mobile IP between Wifi
and WiMax networks.
4- Security for IEEE 802.16.
5-Multimedia Service and Applications for Mobile Platforms.
Our methodologies will be based on detailed planning, as well as
network implementation, demonstration and validation. Measurements
will be performed to evaluate QoS, and help both the dimensioning and
the optimisation processes.
THE FINAL WORKSHOP WILL BE HELD ON THE 27th SEPTEMBER IN
IT/ISCTE, LISBON, PORTUGAL
Acron / Ref
MuSILAGE / IT/LA/301/2005
Title
Multi-sine wave generator
Funding
IT/LA
Descript.
By proving that the response’s power spectral densities (output spectra)
of an arbitrary (causal, stable and of finite memory) nonlinear dynamic
system to two different signals are equal if and only if the two signals
have equal higher-order autocorrelations or power spectral density
functions, the authors of this proposal have recently established the
theoretical framework for the solution of a problem of great engineering
significance: How to design a standard signal stimulus – a multi-sine –
64
capable of mimicking the test of a nonlinear dynamic system under a
pre-determined excitation [1, 2]. Then, they also proposed a numerical
method for designing a multi-sine that shows such higher-order
statistics, which established the methodology necessary to conceive an
“ideal arbitrary waveform generator”.
Unfortunately, when these multi-sine signals are to be created by a
laboratory instrument, several problems appear which can be traced
back to the nonlinear path from the DSP generator to the output of the
RF generator itself.
As the multi-sine flows through the mixers, amplifiers, and filters, their
tones’ amplitudes and relative phases are modified which necessarily
impairs the required higher-order signal statistics.
If those changes result in mere linear phase shift and amplitude
attenuation, then they can be compensated by including that effect in
the DSP as a linear equalizer. However, if these effects are nonlinear,
then the referred phase shift and attenuation depend on the amplitude
of the multi-sine envelope, and a “nonlinear equalizer” (some form of
dynamic linearizer) is in order.
Acron / Ref
PHASE / IT/LA/325/2005
Title
Phase Unwrapping: A New Max-Flow/Min-Cut Based Approach
Funding
IT/LA
Descript.
Recent results on energy minimization via Graph Cuts have opened the
door to a series of advances in low-level image problems such as
segmentation, restoration, classification, stereo, and multi-camera
scene reconstruction. By exploiting this new energy minimization
results, this project aims at conceptual and algorithmic developments in
the field of Phase Unwrapping (PU), namely, the following:
Conceptual
1. Design exact minimizers for Lp-norm based PU, for p >= 1
65
2. Design sub-optimal minimizers for Lp-norm based PU, for 0 < p < 1
3. Design new robust clique potentials tailored to PU, based on the
Bayesian paradigm
4. Design PU schemes taking advantage of diversity (e.g., space or
frequency), i.e., of more than one sources of observed wrapped phase.
Algorithmic
1. Develop, in C/C++, efficient Min-Cut/Max-Flow algorithms taking
advantage of the graph structure inherent to the problems listed above
2. Develop efficient algorithms implementing the minimizers listed
above
3. Develop “real world” application-oriented prototype demonstrators for
these algorithms.
Acron / Ref
SiGeM / IT/LA/304/2005
Title
Silicon Germanium MMICs for RF Front End Transceivers
Funding
IT/LA
Descript.
Increase the know how and to create efficient tools for a first run
realisation of microwave and millimetre wave up to 30GHz, multifunction
MMICs with low cost and CMOS compatible SiGe technologies. We will
define the maximum usable frequency for each front-end component for
the studied SiGe technologies.
Acron / Ref
MONIT
Title
Monitoring of Electromagnetic Radiation in Mobile Communications
Funding
Descript.
Main objectives: To provide ''public awareness'' information about
exposure to radiofrequency electromagnetic wave radiation. To perform
66
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.
Acron / Ref
UAV-SAR
Title
Moving Targets Processing for SAR-carrying UAV’s
Funding
Portuguese Navy
Descript.
1. Optimization of SAR moving target processing for low resource
platforms
2. Development of new processing techniques for moving targets with i)
Velocity above the Nyquist limit; ii) Extended targets; iii) Non-linear
trajectories;
3. Development of a SAR Simulator and processor
4. Dissemination of the project results to the Portuguese Military and to
the National Industry
Acron / Ref
LOOP/ CP4-016
Title
Coexistence and Optimization for LTE-RAN and WAN
Funding
Telesal
Descript.
a) Network Discovery, Session Management and Roaming to allow the
end-user to maintain
session
continuity whilst
roaming between
operators and wireless technologies.
b) Ad-Hoc Networking for Relay-based Cell Coverage Extension will
extend wireless and mobile coverage providing enhanced QoS delivery,
and extended service delivery to remote, and fringe users.
c)
Dynamic
Spectrum
Allocation
for
Heterogeneous
Networks
to
investigate the opportunistic use of licensed spectrum by secondary
67
systems to optimize utilization of scarce spectral resources.
d) Intra-System Optimization to maximize network utilization by
exploring the application of a cross-layered protocol architecture.
68
4.1.5
Running and Concluded Theses
Final Year Projects
Supervisor
Student
CoSupervisors
Title
End
Date
Escalonamento de Tráfego de
2/
Tempo Real em redes celulares
2007
UMTS HSDPA
Plataforma de Aquisição e
Rafael
Sérgio Morgadinho
2/
Tratamento de Dados de
Caldeirinha Rebelo
2007
Sonda de Canal Rádio
Francisco
Bruno Manuel
AKPIS (A presentation Key
7/
Cercas
Gomes Miranda
Performance Indicator)
2007
AKPIS (A presentation Key
7/
Francisco
Rodrigo Manuel
Performance Indicator)
2007
Cercas
Salgado Gonçalves
Francisco
Maria Inês Ribeiro
Building a VoIP-Based Telco
7/
Cercas
Mota
using IPv6
2007
Francisco
Sandro Emanuel
7/
Cercas
Landeiro Braz
using IPv6
2007
Francisco
Ivo Daniel Carreira
7/
Cercas
de Abreu
using IPv6
2007
Caracterização Experimental
Armando
7/
Nuno Miguel Melo Susana Mota do Canal Rádio Móvel para
Rocha
2007
Sistemas MIMO
João Nuno
7/
Pedro Nunes
CW Doppler Radar
Matos
2007
Desenvolvimento de um
Armando
7/
Susana Coutinho
Susana Mota Simulador do Canal Rádio
Rocha
2007
Móvel para Sistemas MIMO
Annibali Giuseppe
Francisco
Design and Simulation of a
7/
(Italian Erasmus
Cercas
UWB System
2007
Student)
Development, testing and
Cláudio Valério
Simulation of a Point-toFernando J.
7/
Botão Comissário
multipoint WiMAX
Velez
2007
da Silva
Communication System at 3.5
GHz
Armando
Pedro Oliveira
Estudo e projecto de um radar 7 /
Rocha
Nunes
Doppler CW
2007
Rafael
Caldeirinha
Norberto Monteiro
e Maximino Peralta
José Rocha
Pereira
João Vitor Ferreira
Microstrip antenna simulator
based in the FDTD method
7/
2007
69
Supervisor
CoSupervisors
Student
José Rocha
Pereira
Francisco
Cercas
Armando José
Pereira Cavaleiro
João Paulo Tavares
Fontes Frade
Francisco
Cercas
Ricardo Filipe
Santos Lopes
Francisco
Cercas
Tiago André Jacinto
Costa
Fernando J. Alberto Segarra
Velez
Martinez
Mário
Silveirinha
Tiago André
Nogueira Morgado/
João Tiago de
Figueiredo e Costa
Fernando J.
Hélder Alves
Velez
End
Date
Mobile antenna for in-motion 7 /
TV reception
2007
Planning and Optimization of a 7 /
3G Network
2007
Remote Access System for
7/
controlling an Satellite Earth
2007
Station
7/
Siebel/CRM for TV Cabo
2007
System capacity and tele7/
traffic simulation for WiFi,
2007
WiMAX and UMTS coexistence
Transmissão e compressão de
9/
ondas electromagnéticas
através de materiais
2007
microestruturados
Impact of QOS in the Planning 7 /
of Mobile WiMAX
2008
Title
Table 13 – List of Final Year Projects running in the Wireless Communications Area during
2007
MSc Theses
Supervisor
Student
CoSupervisors
Title
End
Date
António
Navarro
Marco Paulo
Carvalho Ribeiro
dos Santos
Codificação de Vídeo MPEG-4
em FPGA
1/
2007
José Carlos
Pedro
Hugo Miguel
Santos Teixeira
Extracção de Modelos NãoLineares de Circuitos de
Comunicações
3/
2007
António
Rodrigues
Nuno Manuel de
Matos Correia
Cruz Pratas
Performance of Data Services
3/
over Enhanced UMTS Networks 2007
António
Navarro
Marina Mota
Physical Layer of IEEE 16e
3/
2007
Custódio
Peixeiro
Carlos Mendes
Radiation Efficiency of Small
Printed Antennas
5/
2007
70
Supervisor
Student
CoSupervisors
Title
End
Date
Nuno Borges
Sérgio Pires
Carvalho
Impact of non-ideal channels in 6 /
UWB Systems
2007
Armando
André Pires
Rocha
Nuno Borges Rui Estanqueiro
Carvalho
Santos
Nujoma Sancho
José Rocha
Quaresma
Pereira
Agostinho
Receptor de Dois canais para
Balizas de Satélite
Study of nonlinear impact in
modulated signals
Comparison between the MoM
and the FDTD method in the
simulation of antennas
Development of a software
package based on the LabView
tool for the control of an
antenna radiation pattern
measurement facility
Fixed Unity for a DSRC/RTTT
system
José Rocha
Pereira
José Carlos
Fernandes
Sousa
João Nuno
Matos
Ricardo Abreu
Ricardo Luis
Martins de
Sousa
António
Piotr Aleksander
Alves Moreira Makal
Pedro Pedrosa
Luís M.
Correia
Michal
Mackowiak
Fernando
Nunes
Adriano
Solimeno
Rui Dinis
António
Henrique
Alves Moreira Fernandes
Fernando
Teresa de
Nunes
Sousa
António
Sara Susana da
Alves Moreira Fonseca Nunes
António Topa
Rita Filipa
Cabeças Lapa
7/
2007
7/
2007
7/
2007
Software para Detector Sincrono 7 /
de Balizas de Satélite
2007
Armando
Rocha
Fernando
Nunes
6/
2007
6/
2007
Carlos Paiva
UWB Antennas for Wireless
7/
Applications
2007
Estimation/Detection Techniques
for Block Transmission in Highly 9 /
Dispersive Channels with Carrier 2007
Frequency Offset
Geometrically Based Multiple
9/
Bounce MIMO Channel Model
2007
Low-Cost INS/GPS Data Fusion
9/
with Extended Kalman Filter for
2007
Airborne Applications
Development of Software for
10 /
Antenna Analysis and Design
2007
using FDTD
Error Analysis in GNSS
10 /
Receivers
2007
A Compact Antenna for WLAN
11 /
applications
2007
Álgebra Geométrica do Espaço
Euclidiano: Aplicação a Meios
Anisotrópicos
11 /
2007
71
Supervisor
Student
CoSupervisors
António Topa
Marisa Nunes
Gomes
Carlos Paiva
António Topa
Sérgio Manuel
Simões Elias
Carlos Paiva
Cátia Ducéria
António Topa Oliveira
Marques
Ivo Luís de la
António
Cerda Garcia e
Rodrigues
Sousa
Nuno Parente
António Topa Coutinho
Martins
Carlos
Carla Medeiros
Cardoso
Fernandes
Pedro
António
Gonçalves
Rodrigues
Pimentel
João Carlos
João Vaz
Pataca Vinagre
Carlos
Cardoso
Ridwan Nabi
Fernandes
João Vaz
João Vaz
Luís M.
Correia
Francisco
Cercas
Luís M.
Correia
Luís M.
Correia
Fernando J.
Velez
Carlos Paiva
Title
Álgebra Geométrica do Espaço
Euclidiano: Aplicação a Meios
Quirais e Omega
Introdução Geométrica à
Mecânica Quântica: Átomo de
Hidrogénio e Oscilador
Harmónico
Introdução Geométrica à
Mecânica Quântica: Poços
Unidimensionais
11 /
2007
11 /
2007
11 /
2007
Location in Cellular Mobile
Systems
11 /
2007
Propagação Guiada em Meios
Metamateriais
11 /
2007
Jorge
Reconfigurable Antennas Using
Rodrigues da
MEMS
Costa
11 /
2007
Simulation of a UWB Sensor
Network
11 /
2007
5GHz CMOS power amplifier
12 /
2007
Jorge
Active Multi-Band Antenas for
Rodrigues da
Mobile Communication Systems
Costa
Class E monolhitic CMOS power
Sérgio Romba
amplifier
Vitor Manuel de
CMOS synthesizer for WLAN
Oliveira Fialho
applications
Comparison between UMTS and
Luis Salvado
WiMax in Mobility Scenarios
José António
Design and Application of a New
Pereira Velez
Bluetooth Wireless Network
Impact of HSDPA
Mónica Antunes
Implementation on Coverage
and Capacity in UMTS networks
Impact of HSUPA
Pedro Baptista
Implementation on Coverage
and Capacity in UMTS networks
Rui Manuel F.
Pedro Costa
End
Date
12 /
2007
12 /
2007
12 /
2007
12 /
2007
12 /
2007
12 /
2007
12 /
2007
Mobile IP in Broadband Wireless 12 /
Metropolitan Area Networks
2007
72
Supervisor
Student
Fernando
Nunes
Teresa Ferreira
Luís M.
Correia
João Lopes
Nuno Borges
Manuel Baptista
Carvalho
Nuno Borges José Pedro
Carvalho
Borrego
Nuno Borges
Carvalho
Luís M.
Correia
Carlos
Cardoso
Fernandes
Pedro Prata
Daniel
Sebastião
CoSupervisors
End
Date
Multipath Mitigation Techniques 12 /
for GNSS Signals
2007
Performance Analsyis of UMTS
12 /
HSDPA/HDUPA at the Cellular
2007
Level
Identification of Modulated
1/
Signals from Spectrum and Time
2008
Waveforms
PAssive Intermodulation in
1/
Wireless Communication
2008
Scenarios
RFID for Warehouses
1/
applications
2008
Algorithms for QoS in WiFi
3/
Networks
2008
Title
Jorge
3/
Rodrigues da Development of RFID Antennas
2008
Costa
Influence on capacity of
Luís M.
3/
Luis Gonçalves
interference in UMTS under
Correia
2008
simultaneous FDD and TDD
Performance Analsyis of WiMax
Luís M.
3/
David Antunes
802.16e Networks for Different
Correia
2008
RRM Algorithms
Luís M.
Gonçalo
Performance Analysis of Fully
3/
Correia
Carpinteiro
Wireless WiFi Networks
2008
Aurora Vera do
António
3/
Performance of UMTS900
Espírito Santo
Rodrigues
2008
Costa da Silva
Carlos
António
João Pedro
3/
Cardoso
Simulation of a WiMAX Network
Rodrigues
Barata da Eira
2008
Fernandes
UWB Antennas Analysis and
3/
António
Nuno Pires
Technics
2008
Alves Moreira
Carlos
Jorge
Very Compact Integrated Lens
3/
Ivo Rego
Cardoso
Rodrigues da Antennas for Quasi-Optical
2008
Fernandes
Costa
Applications
Raul Carvalho
Algorithms for RF-based location 4 /
Luís Cruz
determination
2008
Morgado
Luís M.
Correia
Tatiana
Fernandes
Telmo Baptista
Capacity increase in UMTS/HSPA
4/
through the use of MIMO
2008
systems
73
Supervisor
Student
Luís M.
Correia
Armando
Marques
Carlos
Cardoso
Fernandes
António Varela
CoSupervisors
Title
Modelling of building height
interference dependence in
UMTS
Jorge
RF Propagation in Complex
Rodrigues da Environments for Wireless
Costa,
Systems
Filipe Miguel
António Topa Coelho Entradas Carlos Paiva
Pereira da Silva
Duarte Manuel
António Topa
Carlos Paiva
Esteves Estrada
Nuno Borges Jorge Joaquim
Carvalho
Machado
Nuno Borges
Pedro Miguel
Gonçalo Martins
Carvalho
Cabral
Nuno Borges
Ruben Ferreira
Carvalho
Nuno Borges
Pedro Miguel
Sónia Luís
Carvalho
Cabral
Nuno Borges
Pedro Cruz
Carvalho
Nuno Borges
Bruno Gaspar
Carvalho
Nuno Borges
Pedro Miguel
Pedro Sá
Carvalho
Cabral
Daniel Filipe
José
António
Pereira
Sanguino
Rodrigues
Albuquerque
dos Santos
Periodic Structures with
Metamaterials
End
Date
4/
2008
4/
2008
5/
2008
5/
2008
6/
ADC's for high PAPR
2008
Co-location of Wireless Systems 6 /
in a Mobile Infrastructure
2008
6/
Epistemic Radios
2008
6/
Military Wireless Interference
2008
Nonlinear Distortion in ADC
6/
Systems
2008
6/
PAPR in 3.5G Systems
2008
Project of a Satellite Payload RF 6 /
front end
2008
Quantum Well Lasers
Cell Identification Techniques for 7 /
Coordinated Positioning
2008
Fernando J.
Velez
Jorge Miguel da
Silva Tavares
Armando
Rocha
Paula Mourato
José
Sanguino
Armando
Rocha
Paulo Eduardo António
Paulino
Rodrigues
Pedro Miguel da
Silva Gaspar
Development, Simulation and
Validation of MAC and Routing 7 /
2008
Protocols for Wireless Sensor
Networks
Directional Mobile Channel
7/
Characterization for Mobile
Communications Using the SAGE 2008
Algorithm
Dynamic Positioning of a
7/
Floating Production System
2008
Earth-Satellite Propagation
7/
Models at Ka-Band
2008
José
Sanguino
Filipe do Vale
Pires Tocha
GPS Based Coordinated
Positioning System
António
Rodrigues
7/
2008
74
Supervisor
José
Sanguino
António
Rodrigues
Fernando J.
Velez
António
Rodrigues
António
Rodrigues
Fernando J.
Velez
António
Rodrigues
Armando
Rocha
Student
João Pedro
Carvalho
António
Rodrigues
Oliveira de
Miranda Reis
Tiago Alexandre
Sequeira Rebelo
Cláudio Valério
Botão
Comissário da
Silva
João Daniel
Guerreiro Nobre
Frederico Miguel
de Melo Santos
Luís Rodrigues
Pedro Cardoso
Ferreira
Marco Araújo
Fernando J.
Velez
Daniel Robalo
Armando
Rocha
Nuno Balula de
Almeida
João Vaz
André Barata
Fernando
Nunes
Valter Matos
Paulo
Marques
Rui Leitão
João Costa
Freire
João Vaz
Paulo
Marques
CoSupervisors
José
Mascarenhas
Carlos André
Faria Calisto
Duarte Carona
António
Navarro
João Vaz
Title
GPS Compass
Hierarchical Cell Structure in
UMTS Systems
Influence of MAC Protocols and
of the Optimisation of Service
Quality in Mobile WiMAX
Planning
Interference in UMTS Systems
MBMS over cooperative
networks
Optimisation of the Frequency
Planning for Terrestrial Digital
TV in Portugal
Performance oo HSPA in
confined environments
Planeamento de cobertura em
redes celulares de banda larga
Planning, Development and
Optimisation of WIMAX
Networks
Tools for Evaluation
Performance and Comparison of
MIMO Channel Propagation
Models
Design and test of RF passive
structures in integrated silicon
technologies
Error Characterization and
Analysis of Techniques for Its
Mitigation in GPS/Galileo
Estratégias para sincronismo de
receptores digitais baseados em
OFDM
End
Date
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
9/
2008
9/
2008
9/
2008
Mobile television integrated
circuits
9/
2008
9/
2008
Monitorização de Tráfego
Terrestre utilizando SAR
9/
2008
Microwave active filter
75
Supervisor
João Vaz
João Vaz
Paulo
Marques
João Vaz
Francisco
Cercas
CoSupervisors
Student
Jorge Manuel
Rodrigues
Simões
Armindo
António Barão
da Silva Pontes
Adérito Cardoso
Diogo Alexandre
Lázaro Calado
Rui Grencho
Américo
Alexandre
Correia
Farias
Luís M.
Sara Duarte
Correia
António
Nuno Sérgio
Alves Moreira Goulão do Serro
Luís M.
Correia
Luís M.
Correia
Mário
Silveirinha
Ricardo
Preguiça
Filipe Leonardo
José Luís F. M.
Trindade
Title
End
Date
Monolhitic linear power amplifier 9 /
for mobile communications
2008
Monolithic switched power
amplifier for mobile
communications
Vigilância da Costa Marítima
utilizando Radar de Abertura
Sintética
9/
2008
9/
2008
Wideband integrated circuits
9/
2008
Wi-Fi analysis and test
9/
2008
Analysis of technologies for Long 11 /
Term Evolution in UMTS
2008
Compact Multiband Antennas for 11 /
Mobile terminals
2008
Comparison between
11 /
UMTS/HSPA+ and WiMax/IEEE
2008
802.16e in mobility scenarios
Statistical radio channel model 11 /
for MIMO systems
2008
Design of artificial impedance
12 /
surfaces
2008
Table 14 – List of MSc Theses running in the Wireless Communications Area during 2007
PhD Theses
Supervisor
Student
José Carlos Pedro
Pedro Miguel
Ribeiro Lavrador
Rafael Caldeirinha
Telmo R.
Fernandes
CoSupervisors
Miqdad ALNuaimi
Title
End
Date
On the Study of
Impairments
5/
Caused By
2007
Nonlinearities on
Wireless Systems
A discrete RET
Model for
Millimetre-Wave
6/
Propagation
2007
Through
Vegetation in SubUrban Macro Cells
76
Supervisor
Student
CoSupervisors
Title
End
Date
José Neves
Manuel Dinis
Broadband Mobile 12 /
Communications
2007
Francisco Cercas
Alexandre
Manuel de
Castro Passos de
Almeida
Efficient receiver
1/
for UWB using TCH
2008
codes
António Navarro
João Tavares
José Bioucas Dias
Janete Borges
Rafael Caldeirinha
Huajiang Cui
António Alves Moreira Jerzy Guterman
Optimal sourcechannel coding and
4/
modulation for
2008
digital terrestrial
TV
Hyperspectral
6/
Image
2008
Classification
Development of
reliable Phase
Function
9/
Jurgen Richter measurements for
2008
input parameter
estimation of the
RET
Custódio
Peixeiro
Fernando dos
Fernando
Santos Azevedo Fortes
António Rodrigues
Pedro Manuel de
Maria Paula
Almeida
Queluz
Carvalho Vieira
Luís Miguel
João Vaz
Moreira Mendes
Francisco Cercas
Pedro Joaquim
Amaro Sebastião
Multiband Printed
Antennas for
Mobile terminals
Integrated
Receiver in CMOS
technology
Capacity
Enhancement of
Wireless
Communications
Systems Using
MIMO Techniques
CMOS selfoscillator mixer for
5GHz applications
Improved
simulation
tecnhiques for
wireless
communications
10 /
2008
11 /
2008
12 /
2008
12 /
2008
12 /
2008
77
Supervisor
Student
José Bioucas Dias
Sonia Pelizzari
José Leitão
Fernando Sousa
Armando Rocha
Susana de Jesus
Mota
José Carlos Pedro
Jorge dos
Santos Freitas
de Oliveira
Américo Correia
Alberto Amaral
Lopes
Luís M. Correia
António
Serrador
José Bioucas Dias
Gonçalo Valadão
António Rodrigues
Nuno António
Fraga Juliano
Cota
Francisco Cercas
Marco Alexandre
Cravo Gomes
CoSupervisors
Title
End
Date
Oil Slick
Surveillance Using 12 /
ASAR and MERIS 2008
Data
Open loop
structures in
12 /
digital
2008
receivers:Software
Radio Approach
Propagation
Modelling for
MIMO Channels
12 /
2008
Análise de
Comportamentos
7/
Muli-Ritmo em
2009
Sistemas
Electrónicos
Capacityapproaching codes
7/
with low
2009
implementation
complexity
Common Radio
Resource
Management in
7/
Integrated 4G
2009
Mobile
Communication
Systems
Absolute Phase
12 /
Estimation
2009
Automatic Radio
12 /
Resource
Management for 2009
4G Networks
Bandwidth
Effitient Multiple
Access Using
Magnitude
Modulation and
TCH Codes (cosupervision)
12 /
2009
78
Supervisor
Fernando J. Velez
Carlos Paiva
Carlos Paiva
Nuno Borges
Carvalho
Carlos Paiva
Nuno Borges
Carvalho
Luís M. Correia
Luís M. Correia
Student
CoSupervisors
Title
End
Date
Cross-layer Design
for Interoperability
Optimisation of
Orlando Manuel
12 /
Mobile
Brito Cabral
2009
Communication
Systems Beyond
3G
Electromagnetic
wave propagation
in complex media
Sérgio Almeida
1/
Afonso Barbosa and
Matos
2010
metamaterials: A
geometric algebra
approach
Electromagnetic
wave propagation
in multilayered
João Carlos
periodic structures 1 /
Roquete Fidalgo Afonso Barbosa
2010
and photonic
Canto
crystals containing
complex media
and metamaterials
Estudo de Efeitos
João Paulo
1/
de Memória em
Martins
2010
Sistemas/Circuitos
Geometric
foundations of
Marco Alexandre
1/
electromagnetism:
Ribeiro
2010
Theory and
applications
Interference
Hugo Cravo
Rafael
6/
Minimization in RF
Gomes
Caldeirinha
2010
Front-ends
Common Radio
Resource
7/
Luísa Caeiro
Filipe Cardoso Management in
2010
Heterogeneous
Networks
Lúcio Ferrreira
Radio Resources
Management in
Wireless Mesh
Networks
7/
2010
79
Supervisor
Fernando Nunes
Fernando J. Velez
Fernando J. Velez
Luís M. Correia
Mário Silveirinha
Mário Silveirinha
João Costa Freire
Student
CoSupervisors
Title
Model-based
Algorithms for
Nuria Blanco
Acquisition and
Delgado
Tracking in GNSS
Receivers
Cross-layer
João Miguel dos
Optimisation of
Santos Mercante
Routing Protocols
Ferro
for Wireless
Sensor Networks
MAC Protocols for
Wireless Sensor
Luís Miguel
António Sérgio
Networks in a
Moreira Borges Lebres
Context of
Coexistence
MIMO in Body
Carla Oliveira
Area Networks
Microstructured
João Tiago de
High Impedance
Figueiredo e
Antenna
Costa
Substrates
Subwavelenth
Tiago André
Imaging with
Nogueira
Microstructured
Morgado
Materials
Modelling of
Mário Jorge
Passice Structures
Pedro Santos
Simão de
on Silicon
Assunção
Technologies
End
Date
9/
2010
12 /
2010
12 /
2010
7/
2011
10 /
2011
10 /
2011
12 /
2011
Table 15 – List of PhD Theses running in the Wireless Communications Area during 2007
80
4.1.6
Publications
Antennas
Papers in Journals
Costa, J.R.; C. A. Fernandes; "Broadband Slot Feed for Integrated Lens

Antennas", IEEE Antennas and Wireless Propagation Letters, Vol. 6, No. -,
pp. 396 - 400, September, 2007.
Gandara, T; R. Urban; L. Fregoli; C. Peixeiro; "Planar Inverted-F Antennas

Integrated into Small Multi-Standard Handsets", Automatika, Vol. 45, No. 12, pp. 45 - 52, September, 2007.
Guterman, J.; C. Peixeiro; A. A. Moreira; "Omnidirectional Wrapped

Microstrip Antenna: Concept, Integration and Applications", Frequenz, Vol.
61, No. 3-4, pp. 78 - 83, April, 2007.
Oliveira, C.O.; D. Sebastião; G.C. Carpinteiro; L. M. Correia; C. A.

Fernandes; A. Serralha; N. Marques; "The monIT Project: Electromagnetic
Radiation Exposure Assessment in Mobile Communications", IEEE Antennas
and Propagation Magazine, Vol. 49, No. 1, pp. 44 - 53, February, 2007.

Guterman,
J.;
A.
A.
Moreira;
C.
Peixeiro
;
Y.
Rahmat-Samii;
"Electromagnetic Human Interaction with ISM 2.4GHz Laptop Antennas",
Proc European Conf. on Antennas & Propagation - EUCAP, Edinburgh,
United Kingdom, November, 2007.

Oliveira, C.O.; C. A. Fernandes ; L. M. Correia ; "Estimation of Exclusion
Zones for Base Station Antennas in Wireless Communication Systems",
Proc URSI Seminar of the Portuguese Committee, Lisboa, Portugal,
November, 2007.
81

Costa, J.R.; C. A. Fernandes ; "Integrated Imaging Lens Antenna with
Broadband Feeds", Proc European Conf. on Antennas & Propagation EUCAP, Edinburgh, United Kingdom, November, 2007.

Mendes, C.M.; C. Peixeiro ; "Radiation Efficiency of Several Handset
Antennas Obtained with a Modified Wheeler Cap Method", Proc European
Conf. on Antennas & Propagation - EUCAP, Edinburgh, United Kingdom,
November, 2007.

Mendes, C.M.; C. Peixeiro ; "Theoretical and Experimental Validation of a
Generalized Wheeler Cap Method", Proc European Conf. on Antennas &
Propagation - EUCAP, Edinburgh, United Kingdom, November, 2007.

Oliveira, C.O.; D. Ladeira ; D. Sebastião ; L. M. Correia ; "Updated Results
from the Electromagnetic Fields Monitoring Programme of the monIT
Project", Proc Jornadas de Protecção contra Radiações, Lisboa, Portugal,
November, 2007.

Leal, M.; C. Boaventura ; A. A. Moreira ; "UWB Slot Antenna on a Folded
Finite Ground Plane", Proc European Conf. on Antennas & Propagation EUCAP, Edinburgh, United Kingdom, November, 2007.

Oliveira, C.O.; C. A. Fernandes ; L. M. Correia ; "Estimation of Exclusion
Zones for Base Station Antennas in Wireless Communications Systems",
Proc IEEE Vehicular Technology Conf., Baltimore, MD, United States,
October, 2007.

Peixeiro, C.; "Integration Effects of Multiple Microstrip Patch Antennas into
Small Handsets", Proc IEEE AFRICON Conference in Africa, Windhoek,
Namibia, September, 2007.

Guterman, J.; A. A. Moreira; C. Peixeiro; Y. Rahmat-Samii; "User
Interaction with Inverted-F Antennas Integrated into Laptop PCMCIA Cards
82
(invited paper)", Proc International Conf. on Applied Electromagnetics and
Communications - ICECOM, Dubrovnik, Croatia, Vol. 1, pp. 27 - 30,
September, 2007.

Guterman, J.; Y. Rahmat-Samii ; A. A. Moreira ; C. Peixeiro ; "Radiation
from Commercially Viable Antennas for PCMCIA Cards Housed in Laptops",
Proc
IST
Mobile
and
Wireless
Communications
Summit,
Budapest,
Hungary, July, 2007.

Fernandes, C. A.; J.R. Costa ; M. Vorst ; "Design of a Shaped Double-Shell
Lens Feed for a Quasi-Optical Reflector System", Proc IEEE AP-S/URSI
International Symp., Honolulu, United States, June, 2007.

Guterman, J.; D. W. Browne ; Y. Rahmat-Samii ; A. A. Moreira ; C.
Peixeiro; "Design of Integrated Antenna Arrays for MIMO Enabled
Laptops", Proc IEEE AP-S/URSI International Symp., Honolulu, United
States, June, 2007.

Medeiros, C. R.; J.R. Costa; C. A. Fernandes; Kolundzija; "MEMS
Reconfigurable Antenna Patch Antenna Analysis Using WIPL-D", Proc
International Symp. on RF MEMS and RF Microsystems, Barcelona, Spain,
Vol. 1, pp. 67 - 70, June, 2007.

Browne, D. W.; J. Guterman ; Y. Rahmat-Samii ; M. P. Fitz ; "Performance
of Integrated Antenna Arrays for MIMO Enabled Laptops", Proc IEEE APS/URSI International Symp., Honolulu, United States, June, 2007.

Peixeiro, C.; "Small Ground Plane Size Effects on Microstrip Patch
Antennas Revisited", Proc IEEE AP-S/URSI International Symp., Honolulu,
United States, Vol. 1, pp. 2821 - 2824, June, 2007.

Leal, M.; C. Boaventura; A. A. Moreira; "An Optimized Printed Slot
Antenna Design for UWB Applications", Proc Conf. on Telecommunications
- ConfTele, Peniche, Portugal, May, 2007.
83

Guterman, J.; Y. Rahmat-Samii ; A. A. Moreira ; C. Peixeiro ; "Back-toback E-shaped Patch Antenna: Integration of Novel Dual-band Quasiomnidirectional Radiator into Laptops", Proc Conf. on Telecommunications
- ConfTele, Peniche, Portugal, Vol. 1, pp. 37 - 40, May, 2007.

Oliveira, C.O.; C. A. Fernandes; L. M. Correia; "Estimation of Exclusion
Zones for Base Station Antennas,", Proc Conf. on Telecommunications ConfTele, Peniche, Portugal, Vol. 1, pp. 17 - 20, May, 2007.

Medeiros, C. R.; A. Castela; J.R. Costa; C. A. Fernandes; "Evaluation of
Modelling Accuracy of Reconfigurable Patch Antennas", Proc Conf. on
Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 13 - 16,
May, 2007.

Guterman, J.; A. A. Moreira; C. Peixeiro; "Omnidirectional Wrapped
Microstrip Antenna: Concept, Integration Issues and Applications", Proc
Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 33
- 36, May, 2007.

Medeiros, C. R.; J.R. Costa; C. A. Fernandes; Kolundzija; "Modelling of a
MEMS
Reconfigurable
Antenna
Using
WIPL-D",
Proc
ESA
Antenna
Workshop on Multiple Beam and Reconfigurable Antennas, Noordwijk,
Netherlands, Vol. 1, pp. 369 - 372, April, 2007.

Browne, D. W.; J. Guterman; M. P. Fitz; Y. Rahmat-Samii; "Experimental
Validation of Capacity Preserving Design for MIMO Arrays (Invited Paper)",
Proc International Workshop on Antenna Technology - IWAT, Cambridge,
United Kingdom, March, 2007.

Guterman, J.; Y. Rahmat-Samii ; A. A. Moreira ; C. Peixeiro ; "Radiation
Pattern of a 2.4/5.2GHz Laptop Internal Antenna: Near Field Spherical
Range Measurements and Full Wave Analysis (Invited Paper)", Proc
84
International Workshop on Antenna Technology - IWAT, Cambridge, United
Kingdom, March, 2007.
Projects Reports

Guterman, J.; C. Peixeiro; A. A. Moreira; "Report on Latest Developments
and Design Guidelines", Instituto Superior Técnico, Antenna Centre of
Excellence, December, 2007.

Peixeiro, C.; C.M. Mendes; "Small Antenna Technologies - Guidelines for
small antenna design and recommendations for measurements", IST, ACE,
December, 2007.
Circuits And Devices
Papers in Journals

P.M. Santos; "Perfluorocyclobutane electronic state spectroscopy by
high-resolution vacuum ultraviolet photoabsorption, electron impact, He
I photoelectron spectroscopy, and ab initio calculations", Physical Review
A, Vol. 76, No. 3, pp. 032509 -1 - 032509 -11, September,2007.

Finco, S.; B. Borges; P.M. Santos; "Smart Power Integrated Circuit
Educational Tool", IEEE Trans. on Power Electronics, Vol. 22, No. 4, pp.
1290 - 1303, July, 2007.

Martins, J.; NBC Carvalho; J. C. Pedro; "Intermodulation Distortion of
Third-Order
Nonlinear
Systems
With
Memory
Under
Multisine
Excitations", IEEE Trans. on Microwave Theory and Tech., Vol. 55, No. 6,
pp. 1264 - 1271, June, 2007.

Zhu, A.; J. C. Pedro; T. Cunha; "Pruning the Volterra series for
behavioral modeling of power amplifiers using physical knowledge", IEEE
85
Trans. on Microwave Theory and Tech., Vol. 55, No. 5, pp. 813 - 821,
May, 2007.

Aguiar, R. L.; L. Alves; "A Time-Delay Technique to Improve GBW on
Negative Feedback Amplifiers", International Journal of Communication
Systems, January, 2007.

Santos, P.M.; V.C. Costa; M. Gomes; B. Borges; M. Lança; "High-Voltage
LDMOS Transistors Fully Compatible with a Deep Submicron 0.35 um
CMOS Process", Microelectronics Journal, Vol. 38, No. 1, pp. 35 - 40,
January, 2007.

Torres, J.; J.M.C.V. Vaz ; J. Costa Freire ; "30GHz Amplifiers with
0.25ƒÝm SiGe BiCMOS", Proc IEEE International Conf. on Electronics,
Circuits and Systems, marrakesh, Morocco, December, 2007.

Mendes, L.M.; E. S. Pires Pires; J.M.C.V. Vaz ; M. J. Rosário; "A HighPerformance Digitally Controlled LC Oscillator for Ku-Band Applications",
Proc IEEE International Conf. on Electronics, Circuits and Systems,
Marrakech, Morocco, December, 2007.

Azevedo, A.F.; F. Fortes; M. J. Rosário; "A New On-Chip CMOS Active
Balun Integrated With LNA", Proc IEEE International Conf. on Electronics,
Circuits
and
Integrated
Systems
-
ICECS,
Marrakesh,
Morocco,
December, 2007.

Azevedo, A.F.; F. Fortes; J.M.C.V. Vaz; M. J. Rosário; "A Wideband
CMOS LNA Integrated with Balun and Linear Digital Gain Control", Proc
IEEE International Conf. on Electronics, Circuits and Integrated Systems
- ICECS, Marrakesh, Morocco, December, 2007.
86

Mendes, L.M.; E. S. Pires Pires; J.M.C.V. Vaz; M. J. Rosário; "An
Evolutionary Synthesis Algorithm to Design Optimum Performance CMOS
RFSSCAs", Proc IEEE International Conf. on Electronics, Circuits and
Systems, Marrakech, Morocco, December, 2007.

Garcia, J. A.; P. M. Cabral ; J. C. Pedro ; "Characterizing the Vdd-to-AM
and Vdd-to-PM Nonlinearities in a GaN HEMT Class E Power Amplifier",
Proc International Symposium on Microwave and Optical Technology ISMOT, Rome, Italy, December, 2007.

Cabral, P. M.; J. C. Pedro ; NBC Carvalho ; "GaN Model Robustness from
an IMD point of view", Proc International Symposium on Microwave and
Optical Technology - ISMOT, Rome, Italy, December, 2007.

Cabral, P. M.; J. C. Pedro ; J. A. Garcia ; "Intermodulation Distortion in
Polar Transmitters", Proc International Symposium on Microwave and
Optical Technology - ISMOT, Rome, Italy, December, 2007.

Torres, J.; J. Costa Freire ; "SiGe:C BiCMOS Monolithic Millimeter Wave
Integrated Circuits", Proc Conf. on Design of Circuits and Integrated
Systems, Sevilha, Spain, November, 2007.

Pires, E. S. Pires; L.M. Mendes ; P. B. Oliveira ; J. A. Machado ; N. M.
Ferreira ; J.M.C.V. Vaz ; M. J. Rosário ; "Single-Objective MaxMin Sorting
Scheme:
Application
International
Conf.
to
on
Radio
Electrical
Frequency
Circuit
Engineering,
Design",
Coimbra,
Proc
Portugal,
November, 2007.

Azevedo, A.F.; F. Fortes; J.M.C.V. Vaz; M. J. Rosário; "A 1.7V Wideband
CMOS Low Noise Amplifier with Linear Digital Gain Control", Proc
International Microwave and Optics Conf., Salvador BA, Brazil, October,
2007.
87

Pedro, J. C.; "A New Time-Domain Simulation Method for Highly
Heterogeneous RF Circuits", Proc European Microwave Conf. - EMC,
Munich, Germany, Vol. 1, pp. 363 - 366, October, 2007.

Torres, J.; J. Costa Freire; "Broad band Amplifier up to 30GHz with
0.25um
SiGe
technology",
Proc
International
Microwave
and
Optoelectronics Conference - IMOC, Salvador, Brazil, Vol. I, pp. 166 169, October, 2007.

Azevedo, A.F.; F. Fortes; M. J. Rosário; "Monolithic Active Balun
Integrated with a 2.4 GHz Low-Noise Amplifier", Proc International
Microwave and Optics Conf., Salvador BA, Brazil, October, 2007.

Fager, C.; P.M.L. Lavrador; A. Zhu; J. C. Pedro; "System Level Modelling
of RF Power Amplifiers Based on Large-Signal Measurements", Proc
European Microwave Conf. - EMC, Munich, Germany, Vol. 1, pp. 131 134, October, 2007.

Azevedo, A.F.; F. Fortes; M. J. Rosário; "A 2.4GHz CMOS Balun/LNA for
IEEE 802.11b/g WLAN Transceiver", Proc IEEE International Conf. on
Design and Technology of Integrated Systems in Nanoscale Era - DTIS,
Rabat, Morocco, September, 2007.

Azevedo, A.F.; M. J. Rosário; F. Fortes; J.M.C.V. Vaz; "A Dual-Band 1.7V
CMOS Variable Gain Low Noise Amplifier", Proc IEEE International Conf.
on Design and Technology of Integrated Systems in Nanoscale Era DTIS, Rabat, Morocco, September, 2007.

Azevedo, A.F.; F. Fortes; M. J. Rosário; "CMOS Active-Balun Integrated
with
Low-Noise
Amplifier
for
IEEE
802.11b/g
/2.4GHz
WLAN
Transceiver", Proc IEEE International Symp. on Personal, Indoor and
Mobile Radio Commun - PIMRC , Athens, Greece, September, 2007.
88

Mendes, L.M.; E. S. Pires Pires; J.M.C.V. Vaz; M. J. Rosário; "Automated
Design of Radio-Frequency Single-Ended Switched Capacitor Arrays
using Genetic Algorithms", Proc Midwest Symp. on Circuits and Systems,
Montréal, Canada, August, 2007.

Cunha, T.; J. C. Pedro; P. M. Cabral; A. Zhu; "General nonlinear feedforward RF model for power amplifiers", Proc IEEE International
Microwave Theory and Tech. Symp., Honolulu, United States, 2027 2030, June, 2007.

Azevedo, A.F.; F. Fortes; M. J. Rosário; "A 2.4GHz Monolithic Singleended-Input/Differential-Output Low-Noise Amplifier ", Proc Conf. on
Telecommunications - ConfTele, Peniche, Portugal, May, 2007.

Cabral, P. M.; J. C. Pedro; NBC Carvalho; "GaN Model Robustness from
an IMD point of view", Proc Conf. on Telecommunications - ConfTele,
Peniche, Portugal, 177 - 180, May, 2007.

Pedro, J. C.; P. M. Cabral ; J. A. Garcia ; "Nonlinear Distortion Analysis of
Polar Transmitters", Proc IEEE International Microwave Theory and Tech.
Symp., Honolulu, United States, Vol. 1, pp. 957 - 960, May, 2007.

Cunha, T.; P. M. Cabral ; J. C. Pedro ; "Power amplifier feed-forward
model
derived
from
physical
behavior",
Proc
Conf.
on

Torres, J.; J. Costa Freire ; "SiGe Inductorless Low Noise Amplifiers up to
30GHz", Proc Conf. on Telecommunications - ConfTele, LIsbon, Portugal,
Vol. 1, pp. 133 - 136, May, 2007.

Neves,
R.;
J.G.
Guilherme;
N.H.
Horta;
"Using
Attack
Injection
toDesigning Reconfigurable Multi-Standard Analog Baseband Front-End
for
4G
Mobile
Terminals:
System
Level
Design
Discover
New
89
Vulnerabilities", Proc Conf. on Telecommunications - ConfTele, Peniche,
Portugal, Vol. I, pp. 1 - 4, May, 2007.

Mendes, L.M.; J.M.C.V. Vaz; M. J. Rosário; "Wide Tuning Band Low Phase
Noise LC Voltage Controlled Oscillators Designed in Low Cost CMOS
Technologies", Proc Conf. on Telecommunications - ConfTele, Peniche,
Portugal, May, 2007.

Bergano, JB; L. Cupido; D. Barbosa; R. Fonseca; DMS Santos; "Design of
an IF Section for a Galactic Emission Mapping experiment", Proc Conf. on
Telecommunications - ConfTele, Peniche, Portugal, Vol. I, pp. 69 - 72,
April, 2007.
Physical Modelling And Wave Propagation Characterization
Papers in Journals

Silveirinha, M.; "Generalized Lorentz-Lorenz formulas for microstructured
materials", Physical Review B, Vol. 76, No. 245117, pp. 1 - 9, December,
2007.

Silveirinha, M.; N. Engheta; "Theory of Supercoupling, Squeezing Wave
Energy, and Field Confinement in Narrow Channels and Tight Bends
Using Epsilon-Near-Zero Metamaterials", Physical Review B, Vol. 76, No.
245109, pp. 1 - 17, December, 2007.

Matos, S.A.; M. A. Ribeiro; C. R. Paiva; "Anisotropy without tensors: a
novel approach using geometric algebra", Optics Express, Vol. 15, No.
23, pp. 15175 - 15186, November, 2007.

Belov, P. A.; C.R. Simovsky; Ikonen; M. Silveirinha; Hao; "Image
Transmission with Subwavelength Resolution in Microwave, Terahertz,
90
and Optical Frequency Bands", Journal of Communications Technology
and Electronics, Vol. 52, No. 9, pp. 1009 - 1022, September, 2007.

Thurai, M.; V. Bringi; A. Rocha; "Specific Attenuation and Depolarization
in Rain from 2-Dimensional Video Disdrometer Data", IEE Electronics
Letters, Vol. 1, No. 1, pp. 373 - 380, June, 2007.

Pellegrino, L.; Vieira; A.T. Teixeira; P.S André; P. Monteiro; "Simulation
of integrated devices based on BPM", Annals of Telecommunications, Vol.
62, No. 5-6, pp. 653 - 662, May, 2007.

Alù, A; M. Silveirinha; A. Salandrino; N. Engheta; "Epsilon-Near-Zero
(ENZ)
Metamaterials
and
Electromagnetic
Sources:
Tailoring
the
Radiation Phase Pattern", Physical Review B, Vol. 75, No. 155410, pp. 1
- 13, April, 2007.

Pinho, P.T.; M. D. Domingues; P. Ferreira ; S. Gomes; A. Gomide ; J. R.
Pereira; "InterpolatingWavelets and Adaptive Finite Difference Schemes
for
Solving
Maxwell’s
Equations:The
Effects
of
Gridding",
IEEE
Transactions on Magnetics, Vol. 43, No. 3, pp. 1013 - 1022, March,
2007.

Silveirinha, M.; A Alù; N. Engheta; "Parallel-Plate Metamaterials for
Cloaking Structures", Physical Review E, Vol. 75, No. 036603 , pp. 1 16, March, 2007.

Silveirinha, M.; C. A. Fernandes; "Transverse Average Field Approach for
the Characterization of Thin Metamaterial Slabs", Physical Review E, Vol.
75, No. 036613, pp. 1 - 17, March, 2007.

Silveirinha,
M.;
N.
Engheta;
"Design
of
matched
zero-index
metamaterials using nonmagnetic inclusions in epsilon-near-zero media",
Physical Review B, Vol. 75, No. 075119, pp. 1 - 10, February, 2007.
91

Silveirinha, M.; "Metamaterial Homogenization Approach with Application
to the Characterization of Microstructured Composites with Negative
Parameters", Physical Review B, Vol. 75, No. 115104, pp. 1 - 15,
February, 2007.

Silveirinha, M.; P. A. Belov; C.R. Simovsky; "Subwavelength imaging at
infrared frequencies using an array of metallic nanorods", Physical
Review B, Vol. 75, No. -, pp. 035108 (1-12) -, January, 2007.

Vieira, P. Vieira; M.P. Queluz ; A. J. Rodrigues ; "An Improved Directional
Channel Model over Irregular Terrain and Clutter", Proc International
Symp. on Wireless Personal Multimedia Communications WPMC, Jaipur,
India, Vol. 1, pp. 1 - 1, December, 2007.

"Preliminary Measurements and Plans for MIMO Channel Modelling", Proc
E-Activity and Leading Technologies - E-ALT, Porto, Portugal, December,
2007.

Mota, S.M.; F.P.F. Perez-Fontan ; A. Rocha ; "Preliminary Measurements
and Plans for MIMO Channel Modelling", Proc E-Activity and Leading
Technologies - E-ALT, Porto, Portugal, December, 2007.

Rebelo, S. Morgadinho; R.F.S. Caldeirinha ; I. Cuinas ; M. Sanchez ; "A
Reduced Markov Channel Modelling of Vegetation in the Forward
Scattering Region at 40 GHz", Proc European Conf. on Antennas &
Propagation - EUCAP, Edinburgh, United Kingdom, Vol. 1, pp. 1 - 1,
November, 2007.

Belov, P. A.; M. Silveirinha ; C.R. Simovsky ; Hao ; "Imaging with superresolution
in
terahertz
and
infrared
ranges",
Proc
Frontiers
in
Nanophotonics and Plasmonics, S. Paulo, Brazil, Vol. 1, pp. 1 - 1,
November, 2007.
92

Rocha, A.; R. Teixeira ; "Ka band Scintillation Results: Meteorological
Dependencies and Modelling", Proc European Conf. on Antennas &
Propagation - EUCAP, Edimburgh, United Kingdom, November, 2007.

Fernandes, T.R.; R.F.S. Caldeirinha ; M. AL-Nuaimi ; J. Richter ;
"Modelling
Radiowave
Propagation
through
Vegetation
media:
a
Comparison between the RET and dRET models", Proc European Conf. on
Antennas & Propagation - EUCAP, Edinburgh, United Kingdom, Vol. 1,
pp. 1 - 1, November, 2007.

Matos, S.; F. Cardoso ; R.F.S. Caldeirinha ; M. Antunes ; "Sistema
Distribuído de Teleportagem Virtual", Proc Conf. da Engenharia UBIEngenharias, Covilhã, Portugal, Vol. 1, pp. 1 - 1, November, 2007.

Mackowiak, M.; B.W.M. Kuipers ; L. M. Correia ; "Understanding
Geometrically Based Multiple Bounce Channel Models", Proc European
Conf. on Antennas & Propagation - EUCAP, Edinburgh, United Kingdom,
November, 2007.

Matos, S.A.; C. R. Paiva ; A. Barbosa ; "A Coordinate-Free Approach to a
Pseudochiral
Omega
Medium",
Proc
Metamorphose
International
Congress on Advanced Electromagnetic Materials in Microwaves and
Optics - METAMATERIALS, Rome, Italy, Vol. 1, pp. 45 - 45, October,
2007.

Ribeiro,
M.
A.;
electromagnetism
International
C.
using
Congress
R.
Paiva;
"An
geometric
on
Advanced
equivalence
algebra",
Proc
Electromagnetic
principle
for
Metamorphose
Materials
in
Microwaves and Optics - METAMATERIALS, Rome, Italy, October, 2007.

Canto, João R.; C. R. Paiva ; A. Barbosa ; "Bloch Waves with Negative
Phase Velocity in Multilayered Structures Containing Uniaxial Chiral
Media",
Proc
Metamorphose
International
Congress
on
Advanced
93
Electromagnetic Materials in Microwaves and Optics - METAMATERIALS,
Roma, Italy, Vol. 1, pp. 226 - 229, October, 2007.

Engheta, N.; A Alù ; M. Silveirinha ; J. Li ; A. Salandrino ; Edwards ;
"Metamaterials for Optical Nanocircuits, Cloaking, Squeezing Light, and
Supermicroscopy", Proc Metamaterials Congress, Rome, Italy, Vol. 1, pp.
594 - 597, October, 2007.

Silveirinha,
M.;
N.
Engheta;
"Squeezing
Obliquely-Incident
Electromagnetic Waves through Subwavelength Regions or Openings
Using Epsilon-Near-Zero Materials", Proc Metamaterials Congress, Rome,
Italy, Vol. 1, pp. 568 - 570, October, 2007.

Silveirinha, M.; P. A. Belov ; C.R. Simovsky ; "Subwavelength imaging at
infrared
frequencies
using
an
array
of
metallic
nanorods",
Proc
Metamaterials Congress, Rome, Italy, Vol. 1, pp. 553 - 554, October,
2007.

Vieira, P. Vieira; M.P. Queluz ; A. J. Rodrigues ; "Terrain and Clutter
Impact on Joint Statistical Properties of Azimuth Spread and Delay
Spread in Macro-cell Bad Urban Environment", Proc IEEE International
Symp. on Wireless Communication Systems - ISWCS, Trondheim,
Norway, Vol. 1, pp. 1 - 1, October, 2007.

Vieira, P. Vieira; M.P. Queluz ; A. J. Rodrigues ; "A Dynamic Propagation
Prediction Platform over Irregular Terrain and Buildings for Wireless
Communications", Proc IEEE Vehicular Technology Conf., Baltimore,
United States, Vol. 1, pp. 1 - 1, September, 2007.

"A Dynamic Propagation Prediction Platform over Irregular Terrain and
Buildings for Wireless Communications", Proc IEEE Vehicular Technology
Conf. , Baltimore, United States, Vol. 1, pp. 1 - 1, September, 2007.
94

Vieira, P. Vieira; M.P. Queluz ; A. J. Rodrigues ; "Clustering of Scatterers
over an Irregular Clutter Environment: An Extension of COST 273 MIMO
Channel Model", Proc IEEE Vehicular Technology Conf. , Baltimore,
United States, Vol. 1, pp. 1 - 1, September, 2007.

Silveirinha, M.; A Alù ; N. Engheta ; "IR and Optical Cloaking with
Metamaterials with Plasmonic Implants: Theory and Simulations", Proc
OSA Frontiers in Optics, San Jose, CA, United States, Vol. 1, pp. FTHU4 FTHU4, September, 2007.

Rocha, A.; R. Teixeira ; "Overview of 3 Year Results of a Ka-band EarthSatellite
Propagation
Campaign",
Proc
Ka
and
Broadband
Communications Conf., Turin, Italy, Vol. 1, pp. 177 - 182, September,
2007.

Pellegrino, L.; P. Monteiro ; R. A. Sá Ferreira ; L Carlos ; Vicente ; P.S
André ; "Modal analysis of organic-inorganic hybrid planar waveguides
for integrated optics", Proc SPIE Optics and Photonics, San Diego, United
States, August, 2007.

Engheta, N.; A Alù ; M. Silveirinha ; J. Li ; A. Salandrino ; Edwards ;
"Plasmonic Metamaterials: The Tale of two Phenomena", Proc SPIE
Optics and Photonics, San Diego, CA, United States, Vol. 6638, pp. 4 - 4,
August, 2007.

Topa, A.; C. R. Paiva ; A. Barbosa ; "Proper Leaky Modes in DNG Ridge
Waveguides", Proc Progress in Electromagnetics Research Symp. PIERS, Prague, Czech Republic, Vol. 1, pp. 1 - 4, August, 2007.

Statistical Radio Channel Model for Vegetation Dynamic Effects at 40
GHZ", Proc International Symp. on Performance Evaluation of Computers
and Telecommunications Systems - SPECTS, San Diego, California,
United States, Vol. 1, pp. 1 - 1, July, 2007.
95

Silveirinha, M.; N. Engheta ; "Artificial Plasma with Effective EpsilonNear-Zero (ENZ) for Tunneling and Squeezing Electromagnetic Waves
through 3D-narrow channels", Proc URSI North American Radio Science
Meeting, Ottawa, Canada, Vol. 1, pp. 1 - 1, July, 2007.

Canto, João R.; C. R. Paiva ; A. Barbosa ; "Multilayered Structures
Containing Isotropic Chiral Media: Bloch Waves with Negative Phase
Velocity and Forbidden Bands", Proc URSI International Symp. in
Electromagnetic Theory, Ottawa, Canada, July, 2007.

Matos, S.A.; C. R. Paiva ; A. Barbosa ; "New Approach on the
Electromagnetics of a Moving Chiral Media", Proc URSI International
Symp. in Electromagnetic Theory, Ottawa, Canada, July, 2007.

Silveirinha, M.; N. Engheta ; "Tunneling of Electromagnetic Waves
through Channels Filled with Low-Epsilon Anisotropic Materials ", Proc
URSI International Symp. in Electromagnetic Theory, Ottawa, Canada,
Vol. 1, pp. 1 - 1, July, 2007.

Cuinas, I.; A. V. Alejos ; M. Sanchez ; P. Gómez ; R.F.S. Caldeirinha ;
"Wind Effect on the Scattering from Vegetation at Cellular Phone
Frequencies", Proc IEEE International Geoscience and Remote Sensing
Symp.- IGARSS, Barcelona, Spain, Vol. 1, pp. 1 - 1, July, 2007.

Ribeiro, M. A.; S.A. Matos ; C. R. Paiva ; "A geometric algebra approach
to anisotropic media", Proc International Symp. on Antennas and
Propagation - ISAP, Hawaii, United States, June, 2007.

Silveirinha, M.; A Alù ; N. Engheta ; "Anti-Phase Plasmonic and/or
Metamaterial "Satellites" for Induced Transparency and Cloaking", Proc
OSA Photonic Metamaterials: From Random to Periodic (OSA topical
meeting), Jackson Hole, WY, United States, Vol. 1, pp. 1 - 1, June, 2007.
96

Topa, A.; C. R. Paiva ; A. Barbosa ; "Dispersive Leaky-Mode Propagation
in Metamaterial Nonradiative Dielectric Waveguides", Proc IEEE APS/URSI International Symp., Honolulu, United States, Vol. 1, pp. 1 - 4,
June, 2007.

Engheta, N.; A Alù ; M. Silveirinha ; "Metamaterials for Transparency
and Total Scattering Reduction", Proc IEEE AP-S/URSI International
Symp., Honolulu, HI, United States, Vol. 1, pp. 4985 - 4986, June, 2007.

Silveirinha, M.; C. A. Fernandes ; "Realization of Low Profile HighImpedance Surfaces Using an Array of Densely Packed Crossed Metallic
Wires", Proc IEEE AP-S/URSI International Symp., Honolulu, HI, United
States, Vol. 1, pp. 1337 - 1340, June, 2007.

Silveirinha, M.; N. Engheta ; "Squeezing Electromagnetic Energy
Through Narrow 3-D Coaxial Channels of Arbitrary Shape Filled with
Epsilon-near-Zero Materials", Proc IEEE AP-S/URSI International Symp.,
Honolulu, HI, United States, Vol. 1, pp. 3316 - 3319, June, 2007.

Multistate Markov Channel Modelling of Vegetation Dynamics at 40 GHz",
Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1,
pp. 1 - 1, May, 2007.

Ferreira, L. S.; B.W.M. Kuipers ; C. Rodrigues ; L. M. Correia ;
"Characterisation of Signal Penetration into Buildings for GSM and
UMTS", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal,
May, 2007.

Vieira, P. Vieira; M.P. Queluz ; A. J. Rodrigues ; "Clustering of Scatterers
in Mobile Radio Channels - An Approach for Macro-cell Environment over
Irregular Terrain", Proc Conf. on Telecommunications - ConfTele,
Peniche, Portugal, Vol. 1, pp. 1 - 1, May, 2007.
97

Matos, S.A.; C. R. Paiva ; João R. Canto ; A. Barbosa ; "Complex Waves
in a Grounded Bianisotropic Slab with Omega Inclusions", Proc Conf. on
May, 2007.

Ribeiro, M. A.; C. R. Paiva ; "Electromagnetic wave transmission into a
moving dielectric half-space: positive and negative refraction", Proc
Conf. on Telecommunications - ConfTele, Peniche, Portugal, May, 2007.

Kuipers, B.W.M. ; L. M. Correia ; "Evalution of the Relative MIMO Gain",
Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1,
pp. 1 - 1, May, 2007.

Canto, João R.; C. R. Paiva ; S.A. Matos ; A. Barbosa ; "Leaky wave
propagation
in
a
uniaxial
chiroslabguide",
Proc
Conf.
on
May, 2007.

Fernandes, T.R.; R.F.S. Caldeirinha ; M. AL-Nuaimi ; J. Richter ;
"Parameter extraction and sensitivity analysis for the discrete RET model
for radiowave propagation in inhomogeneous forests", Proc Conf. on
Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 1 - 1, May,
2007.

Topa, A.; C. R. Paiva ; A. Barbosa ; "Propagation Analysis of Chiral HGuides",
Proc
Conf.
on
Telecommunications
-
ConfTele,
Peniche,
Portugal, Vol. 1, pp. 5 - 8, May, 2007.

Belov, P. A.; Hao ; M. Silveirinha ; C.R. Simovsky ; "Subwavelength
imaging at microwave terahertz and infrared frequencies", Proc Days on
Diffraction, S. Petersburg, Russia, Vol. 1, pp. 16 - 16, May, 2007.

Rosa, R.; P. Oliveira ; A. Topa ; C. A. Fernandes ; "Visualization Tool for
the
Propagation
of
Electromagnetic
Waves",
Proc
Conf.
on
98
May, 2007.

Ribeiro, M. A.; C. R. Paiva ; "A spacetime algebra approach to isotropic
moving
media",
Proc
Encuentro
Ibérico
de
Electromagnetismo
Computacional - EIEC , Aiguablava, Spain, April, 2007.

Topa, A.; C. R. Paiva ; A. Barbosa ; "Assessment of the Effective Index
Method in the Analysis of DNG Metamaterial Waveguides", Proc
Encuentro
Ibérico
de
Electromagnetismo
Computacional
-
EIEC
,
Barcelona, Spain, Vol. 1, pp. 1 - 4, April, 2007.

Matos, S.A.; C. R. Paiva ; A. Barbosa ; "Effect of Dispersion on a Moving
DNG
Medium",
Proc
Encuentro
Ibérico
de
Electromagnetismo
Computacional - EIEC , Aiguablava, Spain, Vol. 1, pp. 1 - 4, April, 2007.

Pinho, P.T.; "Ferramenta pedagógica FDTD", Proc Encuentro Ibérico de
Electromagnetismo Computacional - EIEC , Barcelona, Spain, Vol. 1, pp.
1 - 4, April, 2007.

Canto, João R.; C. R. Paiva ; A. Barbosa ; "Forbidden bands in periodic
multilayered structures containing DNG media", Proc Encuentro Ibérico
de Electromagnetismo Computacional - EIEC , Aiguablava, Spain, April,
2007.

Silveirinha, M.; "New Homogenization Approach for the Numerical
characterization of Periodic Microstructured Metamaterials", Proc Annual
Review of Progress in Applied Computational - ACES, Verona, Italy, Vol.
1, pp. 215 - 220, March, 2007.

Kuipers, B.W.M. ; L. M. Correia ; "The Relative MIMO Gain", Proc COST
2100-Pervasive Mobile and Ambient Wireless Communications, Lisbon,
Portugal, February, 2007.
99

Engheta, N.; M. Silveirinha ; A Alù ; A. Salandrino ; J. Li ; "ENZ
Nanometamaterials
for
Optical
Nanocircuits,
Squeezing
Light,
and
Rerouting Energy", Proc NanoMeta, Tirol, Austria, Vol. 1, pp. 39 - 39,
January, 2007.
System Planning And Radio Resource Management
Papers in Journals

Cabral, O.; A. S. Martinez; F. J. Velez; "Event-Driven Simulation for IEEE
802.11e Optimization", IAENG International Journal of Computer Science
(IJCS), December, 2007.

Garcia-Lozano, M.; L. Alonso; F. Casadevall; S. Boqué; L. M. Correia;
"Enhanced Analysis of WCDMA Networks with Repeaters Deployment", IEEE
Transactions on Wireless Communications, Vol. 6, No. 9, pp. 3429 - 3439,
September, 2007.

Kuipers, B.W.M. ; A. Serrador Serrador ; L. M. Correia ; "Impact of MIMO
Systems
on
CRRM
in
Heterogeneous
Networks",
Proc
European
Microwave Week/European Microwave Conference, Munich, Germany,
October, 2007.

Marques, M.; J. Ambrósio ; C. Reis ; D. Robalo ; F. J. Velez ; R. Costa ;
J. Riscado ; "Design and Planning of IEEE 802.16 Networks", Proc IEEE
International Symp. on Personal, Indoor and Mobile Radio Commun PIMRC , Athens, Portugal, September, 2007.

Serrador, A. Serrador; L. M. Correia ; "Policies for a Cost Function for
Heterogeneous
Networks
Performance
Evaluation
",
Proc
IEEE
International Symp. on Personal, Indoor and Mobile Radio Commun PIMRC , Athens, Greece, September, 2007.
100

Serrador,
A.
Serrador;
L.
M.
Correia
;
"A
Cost
Function
for
Heterogeneous Networks Performance Evaluation Based on Different
Perspectives", Proc Information Society Technologies Conf., Budapest,
Hungary, July, 2007.

Cabral, O.; A. S. Martinez ; F. J. Velez ; "Simulation of IEEE 802.11e in
the
context
of
interoperability",
Proc
International
Association
of
Engineers (IAENG) World Congress on Engineering - WCE, London,
United Kingdom, July, 2007.

Serrador,
A.
Serrador;
Heterogeneous
Networks
L.
M.
Correia
Performance
;
"A
Cost
Evaluation",
Function
Proc
Conf.
for
on

Marques, M.; J. Ambrósio ; C. Reis ; F. J. Velez ; R. Costa ; J. Riscado ;
"Design and Implementation of IEEE 802.16 Radio Links with Relays",
Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, May,
2007.

Esteves , H.; M. Pereira ; L. M. Correia ; C. Caseiro ; "Impact of Intraand
Inter-Cell
Interferences
on
UMTS-FDD",
Proc
Conf.
on

Ladeira, D.; P. Costa ; L. M. Correia ; L. Santo ; "Planning of UMTS
Cellular Networks for Data Services Based on HSDPA", Proc Conf. on
May, 2007.

Velez, F. J.; P. Sebastião ; R. Tomé ; R. Costa ; D. Robalo ; A. Grilo ; A.
J. Rodrigues ; F.C. Cercas ; "User capacity based planning tool for Wi-Fi
and WiMAX networks", Proc WEIRD Workshop on Wimax, Wireless and
Mobility, Coimbra, Portugal, May, 2007.
101

Velez, F. J.; F. Merca ; N. Anastácio ; O. Cabral ; "Cost/Revenue
Optimisation of Multi-service Cellular Planning for City Centre E-UMTS",
Proc IEEE Vehicular Technology Conf., Dublin, Ireland, April, 2007.

Esteves , H.; M. Pereira; L. M. Correia; C. Caseiro; "Impact of Intra- and
Inter-Cell Interferences on UMTS-FDD", Proc European Wireless - EW ,
Paris, France, April, 2007.

Ladeira, D.; P. Costa ; L. M. Correia ; L. Santo ; "Planning of UMTS
Cellular Networks for Data Services Based on HSDPA", Proc European
Wireless - EW , Paris, France, April, 2007.
Transmission And Reception Systems
Papers in Journals

Dias,
J.;
M.
A.
T.
Figueiredo;
"A
New
TwIST:
Two-Step
Iterative
Shrinkage/Thresholding Algorithms for Image Restoration", IEEE Trans. on
Image Processing, December, 2007.

Silva, M.; A. Correia; R. Dinis ; "Wireless Systems On transmission
techniques for multi-antenna W-CDMA systems", European Transactions on
Telecommunications, Vol. http://dx.doi.org/10.1002/ett.1252, No. published
via unpaginated EarlyView®, pp. published via unpaginated EarlyView® published via unpaginated EarlyView®, November, 2007.

Souto, N.S.; F.C. Cercas; R. Dinis ; J. C. Silva; "On the BER Performance of
Hierarchical M-QAM Constellations with Diversity and Imperfect Channel
Estimation", IEEE Trans. on Communications, Vol. 55, No. 10, pp. 1852 1856, October, 2007.

Souto,
N.S.;
F.C.
Cercas;
R.
Dinis
;
J.
C.
Silva;
A.
Correia;
"Transmitter/Receiver Method for Supporting Hierarchical Modulations in
102
MBMS
Transmissions",
Wireless
Personal
Communications
Journal,
September, 2007.

Nunes, F.; F. Sousa; J. Leitão; "Gating Functions for Multipath Mitigation in
GNSS BOC Signals", IEEE Trans. on Aerospace and Electronic Systems, Vol.
43, No. 3, pp. 1 - 12, July, 2007.

Chatzigeorgiou, I; M. Rodrigues ; I. J. Wassell; R Carrasco; "Comparison of
convolutional and turbo coding schemes for broadband FWA systems", IEEE
Transactions on Broadcasting, Vol. 53, No. 2, pp. 494 - 503, June, 2007.

Adeane, J.; M. Rodrigues ; I. J. Wassell; "Lattice-reduction-aided detection
for MIMO-OFDM-CDM communication systems", IET Communications, Vol. 1,
No. 3, pp. 526 - 531, June, 2007.

Correia, A.; J. C. Silva; N.S. Souto; "Multi-Resolution Broadcast/Multicast
Systems for MBMS", IEEE Transactions on Broadcasting, Vol. 53, No. 1, pp.
224 - 234, March, 2007.

Dias, J.; G. Valadão; "Phase Unwrapping via Graph Cuts", IEEE Trans. on
Image Processing, Vol. 16, No. 3, pp. 698 - 709, March, 2007.

Silva, J.; N.S. Souto; F.C. Cercas; R. Dinis ; A. J. Rodrigues; A. Correia;
"Equalization
Based
Receivers
for
Wideband
MIMO/BLAST
Systems",
Wireless Personal Communications Journal, Vol. 40, No. 3, pp. 291 - 304,
February, 2007.

Adeane, J.; M. Rodrigues ; I. J. Wassell; "Centralised and distributed power
allocation for co-operative networks", IEE Electronics Letters, Vol. 43, No. 1,
pp. 39 - 40, January, 2007.

Souto, N.S.; J. C. Silva; F.C. Cercas; A. Correia; A. J. Rodrigues; "Low rate
convolutional and turbo codes based on non-linear cyclic codes", Wireless
103
Communications and Mobile Computing - Wiley, Vol. 7, No. 1, pp. 23 - 34,
January, 2007.

Gomes, M.; G. Falcão Fernandes; V. Silva; V. F. Ferreira; A. S. Sengo;
Falcão; "Flexible Parallel Architecture for DVB-S2 LDPC Decoders", Proc IEEE
Global Telecommunications Conf. - GLOBECOM, Washington DC, United
States, November, 2007.

Souto, N.S.; R. Dinis; J. C. Silva; "Iterative Decoding and Channel
Estimation of MIMO-OFDM Transmissions with Hierarchical Constellations
and Implicit Pilots", Proc IEEE IEEE International Conference on Signal
Processing and Communication - ICSPC, Dubai, United Arab Emirates,
November, 2007.

Souto, N.S.; R. Dinis; J. C. Silva; "Efficient Channel Estimation for OFDM
Systems
with
Hierarchical
Constellations",
Proc
IEEE
International
Symposium on Communications and Information Technologies - ISCIT,
Sydney, Australia, October, 2007.

Monteiro, F. A.; I. J. Wassell; "Euclidean Distances in Quantized Spaces with
Pre-stored Components for MIMO Detection", Proc European Conf. on
Wireless Technology - ECWT, Munich, Germany, Vol. 1, pp. 150 - 153,
October, 2007.

Monteiro, F. A.; I. J. Wassell; "Progressive Hypercube Decoding", Proc IEEE
International
Symp.
on
Wireless
Communication
Systems
-
ISWCS,
Trondhein, Norway, Vol. 1, pp. 1 - 5, October, 2007.

Nunes, F.; F. Sousa; J. Leitão; "Nonlinear Least-Squares Algorithm for
Close-in
Multipath
Mitigation
in
GNSS
Receivers",
Proc
Institute
of
Navigation GPS/GNSS Conf., Fort Worth, United States, Vol. I, pp. 1 - 9,
September, 2007.
104

Dias, J.; M. A. T. Figueiredo; "Two-step algorithms for linear inverse
problems with non-quadratic regularization", Proc IEEE International Conf.
on Image Processing - ICIP, Texas, United States, September, 2007.

Marques, P.; I. D. Dias; E. F. Fernandes; "A Low Cost Testbed for Synthetic
Aperture Techniques", Proc IEEE International Geoscience and Remote
Sensing Symp.- IGARSS, Barcelona, Spain, Vol. CD-ROM, July, 2007.

Monteiro, F. A.; I. J. Wassell; "Efficient Scalar Quantization for MIMO Spatial
Multiplexing Receivers", Proc International Symp. on Communication Theory
and Applications - ISCTA, Ambleside, Lake Disctrict, United Kingdom, July,
2007.

Borges,
J.;
J.
Dias;
"Evaluation
of
bayesian
hyperspectral
imaging
segmentation with a discriminative class learning", Proc IEEE International
Geoscience and Remote Sensing Symp.- IGARSS, Barcelona, Spain, July,
2007.

Souto, N.S.; "Joint Detection and Channel Estimation for OFDM Signals with
Implicit Pilots", Proc IST Mobile and Wireless Communications Summit,
Budapest, Hungary, July, 2007.

Souto, N.S.; R. Dinis; J. C. Silva; "Supporting M-QAM Hierarchical
Constellations
in
HSDPA
for MBMS",
Proc
IST
Mobile
and
Wireless
Communications Summit, Budapest, Hungary, July, 2007.

Borges, J.; J. Dias; A. Marçal; "Bayesian Hyperspectral Image Segmentation
with
Discriminative
Class
Learning"",
Proc
Iberian
Conf.
on
Pattern
Recognition and Image Analysis, Girona, Spain, June, 2007.

Silva, A. ; A. Gameiro ; "Comparison of Single and Multi-User Pre-Filtering
Techniques Using Different Chip Mapping for DL MC-CDMA Systems ", Proc
105
IEEE Workshop on Signal Processing for Advanced Wireless Communications
- SPAWC, Helsinquia, Finland, June, 2007.

Gomes, M.; G. Falcão Fernandes; V. Silva; V. F. Ferreira; A. S. Sengo;
Falcão; "Factorizable modulo M parallel architecture for DVB-S2 LDPC
decoding", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal,
May, 2007.

Nunes, F.; J. Leitão; F. Sousa; "Improving Pseudorange Estimation in GNSS
Receivers
with
a
Recursive
Bayesian
Approach",
Proc
Conf.
on
Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 1 - 4, May,
2007.

Souto, N.S.; R. Dinis; J. C. Silva; F.C. Cercas; A. Correia; "Supporting
Hierarchical Modulations in HSDPA for MBMS Transmissions", Proc Conf. on

Marques, P.; I. D. Dias; E. F. Fernandes; "An Experimental Synthetic
Aperture Sonar Platform", Proc Conf. on Telecommunications - ConfTele,
Peniche, Portugal, Vol. 1, pp. 621 - 624, April, 2007.

Marques, P.; A. Ferreira; "Long Distance Real-Time Echo Cancellation", Proc
Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. 597 600, April, 2007.
Project Reports

Monteiro, F. A.; "Detection Techniques for Multiple-input Multiple-output
Spatial Multiplexing - PhD Registration Report", University of Cambridge,
March, 2007.
106
4.1.7
Other Achievements
Awards

Fernandes, T.R.; R.F.S. Caldeirinha; M. AL-Nuaimi; J. Richter; " Modelling
Radiowave Propagation through Vegetation media: a comparison between
RET and dRET models ", Best Propagation Poster Prize at EuCAP 07 European Conference on Antennas and Propagation - 11 - 16 November
2007, EICC, Edinburgh, UK , 01-11-2007.

Monteiro, F. A.; " Best Paper Award (Conference Prize) at the European
Conference on Wireless Technology 2007 ", Prize given by the European
Microwave Association during the European Microwave Week 2007, Munich,
Germany , 01-10-2007.

Oliveira, C.O.; " Estimação de Zonas de Exclusão para Antenas de Estação
Base em Sistemas de Comunicação sem Fios ", Prémio Inovação Jovem
Engenheiro 2006 - Menção Honrosa , 01-10-2007.

Guterman, J.; " BEST STUDENT PAPER PRIZE ", The Best Student Paper
Prize awarded for the paper entitled “Back-to-back E-Shaped Patch:
Integration of a Novel Dual-Band Quasi-Omnidirectional Antenna into
Laptops” at the 6th Conference on Telecommunications - ConfTele 2007,
Peniche, Portugal, 9-11 May, 01-05-2007.

Pedro, J. C.; " IEEE Fellow Member ", In January 2007 he was elected, by
the Board of Directors of the IEEE, IEEE Fellow Member for his outstanding
contributions to nonlinear distortion analysis of microwave devices and
circuits, 01-01-2007 .
107
Miscellaneous

Caldeirinha,
scattering
R.F.S.;
from
T.R.
Fernandes;
vegetation:
"
modelling
Seminars
",
Electromagnetic
including
DRET
models
for
applications in present and future wireless communication systems",
University of Glamorgan , 01-11-2007.

Cabral, O.; A. S. Martinez; F. J. Velez; " Seminars ", Simulation of IEEE
802.11e in the context of interoperability ", COST290 – Traffic and QoS
Management in Wireless Multimedia Networks , 01-10-2007.

Ferro, J.M.; L. Borges; F. J. Velez; A. Lebres; " Seminars ", Applications of
Wireless Sensor Networks ", COST2100 – Pervasive Mobile & Ambient
Wireless Communications , 01-09-2007.

Marques, M.; J. Ambrósio; C. Reis; D. Robalo; F. J. Velez; R. Costa; J.
Riscado; " Seminars ", Design and Planning of IEE 802.16 Networks ",
COST2100 – Pervasive Mobile & Ambient Wireless Communications , 01-092007.

Velez, F. J.; P. Sebastião; " Invited Talks ", Design and Planning of WiMAX
Networks (MobileMAN) ", Workshop Mobile WiMAX – Towards Ubiquitous
Internet, 01-09-2007.

Cabral, O.; A. S. Martinez; F. J. Velez; " Seminars ", Simulation of IEEE
802.11e in the context of interoperability ", COST2100 – Pervasive Mobile &
Ambient Wireless Communications, 01-09-2007.

Caldeirinha, R.F.S.; " MSc Thesis Jury ", MSc of Rui Filipe Oliveira Teixeira ",
University of Aveiro, Portugal , 01-07-2007.

Pereira, J. R.; " National Delegate ", COST Action IC0603 ‘ASSIST - Antenna
Systems & Sensors for Information Society Technologies’ ", , 01-05-2007 .
108

Velez, F. J.; " MSc Thesis Jury ", Plataforma de Simulação para Sistemas
Rádio Oportunistas ", defendida com sucesso pelo licenciado Artur de
Oliveira Pereira na Universidade de Aveiro , 01-03-2007 .

Marques, P.; " Invited Talks ", Radar de Abertura Sintética - Princípios e
Aplicações ", Semana Informática - ISEL , 01-03-2007 .

Tavares, J.; F. J. Velez; J.M. Ferro; " Seminars ", Application of Wireless
Sensor Networks to the Automobile ", 6º Seminário da RTCM – Rede
Temática de Comunicações Móveis, Aveiro, PT Inovação, 16 de Fevereiro de
2007, 01-02-2007 .

Tavares, J.; F. J. Velez; J.M. Ferro; " Seminars ", Application of Wireless
Sensor Networks to the Automobile ", COST2100 – Pervasive Mobile &
Ambient Wireless Communications, 01-02-2007.

Marques, M.; J. Ambrósio; C. Reis; D. Robalo; F. J. Velez; R. Costa; J.
Riscado; " Seminars ", Design and Implementation of IEEE 802.16 Radio
Links with Relays ", COST2100 – Pervasive Mobile & Ambient Wireless
Communications , 01-02-2007 .

Valero, J.; R. R. P. Paulo; F. J. Velez; " Seminars ", Event-based Simulation
for Multi-Rate Multi-Service Traffic Validation in ", COST2100 – Pervasive
Mobile & Ambient Wireless Communications , 01-02-2007 .

Anastácio, N.; F. Merca; O. Cabral; F. J. Velez; " ", QoS Metrics for CrossLayer Design and Network Planning for B3G Systems ", COST Action 2100 Pervasive Mobile & Ambient Wireless Communications , 01-02-2007.
109
4.1.8
Other Contributions
Conference Committees

Mobile WiMAX - Towards Ubiquitous Internet, Organizing Committee,
Luís Ducla Soares, 01-01-2007;

International Symp. on Wireless Communication Systems - ISWCS,
Technical Programme Committee, Fernando J. Velez, 01-10-2007;

International Conf. on Wired/wireless Internet Communications - WWIC,
Technical Programme Committee, Fernando J. Velez, 01-05-2007;

WEIRD
Workshop
on
Wimax,
Wireless
and
Mobility,
Organizing
Committee, Fernando J. Velez, 01-05-2007;

International Conf. on Wireless Information Networks and Systems Winsys, Sessions Chairman , Rafael Caldeirinha, 01-07-2007;

Conf. on Telecommunications - ConfTele, Sessions Chairman , Rafael
Caldeirinha, 01-05-2007;

Mosharaka International Conference on Wireless Communications and
Mobile Computing - M-WCMC, Technical Programme Committee, José
Sanguino, 01-01-2007;

European Microwave Week/European Microwave Conference, Sessions
Chairman , Nuno Borges Carvalho, 01-01-2007;

European Conf. on Antennas & Propagation - EUCAP, Sessions Chairman,
Jorge Rodrigues da Costa, 01-01-2007;

International Conference Signal, Image and Speech Processing - SISPIC,
Technical Programme Committee, Mário Marques Silva, 01-01-2007;

IEEE Vehicular Technology Conf. , Technical Programme Committee,
Fernando J. Velez, 01-04-2007;

International Association of Engineers (IAENG) World Congress on
Engineering WCE, Technical Programme Committee, Fernando J. Velez,
01-01-2007;

Broadband Wireless Access Workshop - BWA, Technical Programme

110

International Conf. on Electrical Engineering, Scientific Committee, João
Costa Freire, 01-01-2007;

3nd International Symposium on Visual Computing - ISVC07, Technical
Programme Committee, José Bioucas Dias, 26-11-2007;

ConfTele07
–
6th
Conference
on
Telecommunications,
Organizing
Committee, Rafael Caldeirinha, 03-05-2007;

International Conference on Image Analysis and Recognition - ICIAR
2007, Technical Programme Committee, José Bioucas Dias, 22-08-2007;

VII Mediterranean Microwave Symposium, Scientific Committee, João
Costa Freire, 04-11-2007;

WINSYS-2007 conference – the International Conference on Wireless,
Conference Chairman, Rafael Caldeirinha, 28-07-2007;
Editorial Committees

Journal of Communications and Networks , ETRI, Luís M. Correia, Associated
Editor, 01-05-2007 to.
111
ANNUAL REPORT 2007 – OPTICAL COMMUNICATIONS
4.2 Optical Communications
4.2.1
Coordinators
Adolfo Cartaxo
José Ferreira da Rocha
4.2.2
Human Resources
Overview
Degree
Aveiro
Coimbra
Lisboa
Full Professor
2
0
0
Associate Professor
1
1
2
Assistant Professor
6
1
4
Post. Doc.
4
0
0
Visiting Professor
1
0
0
PhD Student
13
3
4
MSc Student
0
3
0
Graduate
2
0
0
29
8
10
TOTAL
Table 16 – Overview of human resources in the Optical Communications Area
113
Name
Degree
Position
Group
João Lemos Pinto
Agregação
Full Professor
OC – Av
José Ferreira da Rocha
Agregação
Full Professor
OC – Av
Adolfo Cartaxo
Agregação
Associate Professor
OC – Lx
Jorge Torres Pereira
Agregação
Associate Professor
EOC - Lx
Carlos Ferreira Fernandes
Agregação
Assistant Professor
EOC - Lx
Henrique Silva
PhD
Associate Professor
OC – Co
Paulo Monteiro
PhD
Associate Professor
OC – Av
António Teixeira
PhD
Assistant Professor
OC – Av
Armando Nolasco Pinto
PhD
Assistant Professor
EOC - Av
João Rebola
PhD
Assistant Professor
OC – Lx
João Pires
PhD
Assistant Professor
OC – Lx
José Morgado
PhD
Assistant Professor
OC – Lx
Manuel Violas
PhD
Assistant Professor
OC – Av
Mário Lima
PhD
Assistant Professor
OC – Av
Rui Sousa Ribeiro
PhD
Assistant Professor
OC – Av
Paulo Jorge Marques
PhD
Assistant Professor
OC - Av
Paulo André
PhD
Pos. Doc.
EOC - Av
Paulo Brandão Moreira
PhD
Pos. Doc.
OC – AV
114
Name
Degree
Position
Group
Rogério Nogueira
PhD
Pos. Doc.
EOC - Av
Ruben Soares Luis
PhD
Pos.Doc
OC - Av
Table 17 – Permanent Collaborators working in the Optical Communications Area
Other Collaborators
Name
Degree
Position
Group
Hypolito José Kalinowsky
PhD
Visiting Professor
EOC - Av
João da Silva Pereira
MSc
Assistant Professor
OC – Co
António Jorge Morgado
MSc
PhD Student
OC – Av
Berta Neto
MSc
PhD Student
EOC - Av
Daniel Fonseca
MSc
PhD Student
OC – Lx
Claunir Pavan
MSc
PhD Student
EOC - Av
João Manuel Pedro
MSc
PhD Student
OC – Lx
Lara Pellegrino
MSc
PhD Student
EOC - Av
Luís Cancela
MSc
PhD Student
OC – Lx
Luís Carlos Gonçalves
MSc
PhD Student
OC – Av
Mário Rui Leiria
MSc
PhD Student
OC – Lx
Marek Hajduczenia
MSc
PhD Student
OC – Co
Meire Fugihara
MSc
PhD Student
OC – Av
115
Name
Degree
Position
Group
Miguel Ângelo Madureira
MSc
PhD Student
OC – Av
Natasa Pavlovic
MSc
PhD Student
OC – Lx
Nelson Jesus Muga
MSc
MSc Student
EOC - Av
Rui Meleiro
MSc
PhD Student
EOC - Av
Sílvia Pato
MSc
PhD Student
OC – Co
Tiago Silveira
MSc
PhD Student
OC - Av
Ana Patrícia S. Ferreira
Graduate
PhD Student
OC – Av
José Filipe Pina
Graduate
PhD Student
OC – Co
Sérgio Junior
Graduate
PhD Student
OC – Av
Luis Batista Sá
Graduate
MSc Student
OC – Co
Mário Reis
Graduate
MSc Student
OC – Co
Cláudio Lima
Graduate
Researcher
OC – Co
José Miguel Santos
Graduate
Teresa Almeida
Graduate
Researcher
Researcher
OC – Av
EOC - Av
Table 18 – Non-permanent Collaborators working in the Optical Communications Area
116
4.2.3
Summary of Research Achievements
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.
Optical Components and Subsystems
The work carried out in this sub-area concentrated on the specification, simulation,
manufacturing, performance evaluation, optimization and implementation of key
components and subsystems for all-optical networks.
Simulation models based on the transfer matrix method have been applied to the
study of non-conventional DFB laser diodes as far as the mode selectivity is
concerned. Moreover, an analysis based on matrix techniques was extended to
asymmetrical structures taking into account the several physical parameters that
describe the laser structure. The studies aimed at to optimize, in a self-consistent
way, different modified DFB laser structures (phase-shift PS, distributed coupling
coefficient DCC, chirped pulse modulated CPM) suitable for single longitudinal mode
operation.
The analysis and simulation of semiconductor PIN photodiodes continued. Based on
previous work, the effects of the direction of incident light on the transit time
frequency response of p-i-n photodiodes was investigated. The implemented model
may be applied to devices with an arbitrary electric field profile in the absorption
region and non-uniform illumination. It is seen that better bandwidths are obtained
when the light is incident on the p side and that the bandwidth values calculated
with the saturation velocity values are underestimated and overestimated for light
incident on the p and n side respectively. The effect of the reverse bias voltage on
the bandwidth is seen to be more important when the light is incident on the p side
and also for devices with larger absorption region widths.
117
The activities realized in the integrated optics topic are the following. The
permanent recording of periodic structures in gamma-ray irradiated LiF crystals has
been realized by low-power illumination, with a continuous laser at 244 nm and a
standard phase mask. This allows us to produce micro-patterns structures with
refractive index and gain modulation periodicity comparable with the optical signals
wavelengths. The same recording technique (UV laser and phase mask or Talbot
interferometer) was used to record Bragg gratings in optical fibres. The developed
devices (filters and optical cavities) were used for advanced all-optical signal
processing in high bit rate optical communications, such as wavelength conversion,
all-optical clock recovery and pulse formatting. Fibre Bragg gratings were also
implemented as optical sensors for the monitoring of dynamic (acceleration) and
static (deformation) characteristics of smart structures, biomaterials and civil
engineering structures.
The work produced in the area of new materials for integrated optics has resulted in
the production of sol-gel based subtracts with buried planar and linear waveguides.
These studies have centered in the production of new low cost solutions for the
implementation of large spread optical technology.
The Raman amplification topic work has centered in the challenges, achievements,
and perspectives of Raman amplification for optical communication systems. In
Raman amplified systems, signal amplification is based on stimulated Raman
scattering, thus the peak of the gain is shifted by approximately 13.2 THz with
respect to the pump signal frequency. The possibility of combining many pumps
centred on different wavelengths brings a flat gain in an ultra wide bandwidth,
overcoming the limitation of the traditional optical amplification techniques based
on Erbium doped fiber amplifiers. The main achievements can be summarized as
follows: i) low cost Raman amplifier based on incoherent pumping sources; ii)
flexible algorithm for pump allocation; iii) demonstrator of a Raman amplifier baser
on Rayleigh backscattering and optical cavities; iv) modeling of transient effects in
Raman amplifiers and v) low cost and very large broadband amplifier for CWDM
transmission systems. The investigation of the use of Raman amplification in
metropolitan and access networks has been initiated.
118
In the topic of optical signal formatting, we have achieved the implementation of an
all optical DSB to SSB transponder at 40 Gbit/s.
In the area of quantum communications, we succeeded in generating and detecting
single photons. The generation process was based on four-wave mixing in optical
fibres. We initiated also studies towards the generation of single photons using
colour defects in diamond nano-particles. The generation and detection of single
photons represents the first step toward the implementation of optical quantum
communication systems. We intend also to use the photon quantum nature to
achieve secure communications over fibre.
Optical Communication Systems
Advanced modulation formats were studied from various points of view. Several
structures of optical single sideband (OSSB) transmitters were compared and
optimized numerically. The use of electrical pre-compensation of dispersion and of
adjustable electrical simultaneous compensation of group velocity dispersion and
differential group delay in optical single sideband transmission systems were
investigated numerically. Several signaling formats (duobinary, duobinary carriersuppressed and alternate mark inversion), suitable for long-haul ultra-dense WDM
(UDWDM) systems after adequate optical filtering, were optimized and their longhaul transmission performance was compared in long-haul 43 Gbit/s/channel
UDWDM systems. The impact of tight optical filtering on the transmission properties
of such signaling formats was assessed numerically. Dispersion managed directly
modulated 10 Gb/s systems were numerically optimized and it was shown that they
can achieve performance similar to the one of externally modulated systems (within
2-3 dB, depending on the laser features). A spectrally efficient optical label
insertion/extraction scheme using an OSSB filter was proposed and its performance
was analyzed theoretically and experimentally.
2R all-optical regenerators were characterized and their main parameters were
optimized numerically for use in a chain of regeneration sections. The accuracy of
using a Gaussian distribution for the optical power in the assessment of the
performance of a chain of regeneration sections was shown to be poor in many
119
cases. On the other hand, the accuracy of a Gaussian approach for the performance
evaluation
of
direct-detection
receiver
with
partially
polarized
noise
was
investigated and shown that provides good estimates of performance for typical
values of polarization dependent loss.
The impact of cross-phase modulation (XPM), four wave mixing and stimulated
Raman scattering on the performance of dispersion managed dense WDM systems
was investigated. In particular, optimum dispersion maps (ODM) due to XPM were
found out and validated through numerical simulation. A reduced model for the
ODM due to XPM was proposed which shows the dependency of the ODM on the link
parameters. Additionally, the impact of the nonlinear transmission over the
dispersion compensating fibre (DCF) on the XPM-induced degradation was assessed
and it is shown that, for up to -3 dBm of average power at the DCF input, the
impact of nonlinear effects on the DCF can be usually neglected.
A rigorous formulation based on an eigenfunction expansion technique was
developed to analyze the performance of DPSK receivers in the presence of
arbitrary optical and electrical filtering. The bit error ratio (BER) estimation of DPSK
systems using the differential phase Q taking into account the electrical filtering
influence was analyzed. A novel approach for BER evaluation of DQPSK systems
using differential phase Q was proposed.
In the topic of radio over fibre, the study and analysis of implementation scenarios
for this technology were carried out through the determination of its fundamental
limitations in the pursued scenario (namely due to dispersion and nonlinear
effects). The implementation of a field trial demo using adapted common terminals
based on a radio repeater has started. The optical distribution of ultra wideband
radio signals (orthogonal frequency division multiplexing and impulse-radio) in
fibre-to-the-home (FTTH) networks started to be investigated as well.
In the area of performance evaluation, we have developed a simplified approach for
the assessment of optical communication systems performance with polarization
dependent loss, arbitrary optical filtering, monitoring of interferometric crosstalk
and chromatic dispersion.
120
Optical Networking
Research on Passive Optical Networks (PONs) has been continued, with emphasis
on multiple access techniques, new QoS and security algorithms, and on the
specification of a physical layer for an EPON operating at 10 Gbit/s. A tool has been
developed for automated planning of PONs. A new architecture for a long reach 10G
EPON network with high level of survivability was proposed and its performance
was evaluated through computer simulations at the physical, as well the media
access control layer. It was shown that a network with a feeder section based on a
100 km ring and supporting four 10G EPONs, each one with 32 ONUs, is feasible.
Optical burst (and packet) switching (OBS), despite their viability or near future
implementation, is still pressing the Telco's related research. In this topic, we are
aiming techniques for agile buffering, all-optical switching, header detection an alloptical flip-flop operation. Also, due to the need for increased quality of services
and applications, the network end (access) is suffering from a great pressure for
increased bit rates. In that area, working on the effect of the fibre on the different
types of signals has been accomplished, namely the 3G signals over fibre and the
effects of distributed amplification and lumped low cost semiconductor based
amplification and head-end. The next generation networks will have to be dynamic
and adaptable. This can only be achieved through a strong interaction between the
layers. In this field, we are developing an interfacing layer able to process dynamic
monitoring, and actuation, with capacity to interact with management plane.
Research continued also on node architectures for OBS networks. The objectives of
this activity were extended to include modelling of optical signal processing systems
using non-linear applications of quantum-dot SOAs, such as wavelength converters
and optical regenerators. An all optical router for packet traffic at 40 Gbits/sec, was
implemented. A combination of the previously developed strategy, named as HMPI
(Heuristic Minimum Priority Interference), with delayed burst scheduling at the
ingress nodes, as a way to minimize both the probability of contention at the core
nodes and improve the efficiency of bandwidth utilization, has been proposed.
Using network simulation, the improvement of the performance of an OBS ring
121
network achieved by this strategy when compared to existing burst scheduling
algorithms was shown.
The work developed in the previous year regarding the use of integer linear
program formulations to describe the problem of traffic grooming in multi-ring
networks with dual interconnection was extended to include translucent optical
networks. In these networks, some paths can travel through the nodes without any
optical-electrical conversion, while other paths require electrical processing at the
nodes. It was shown that, even for these complex networks, it is possible to arrive
to optimum solutions, for networks with sizes as large as 13 nodes.
122
4.2.4
Overview
Funding Agency
Number
AdI
1
ADI, Nokia Siemens Networks, SA
2
ESF
1
EU, IST Programme
2
FCT / POCI
2
FCT / POSC
4
FCT / POSI
1
FCT/PTDC
7
GRICES
1
IT/LA
2
JustBit
1
Nokia Siemens Networks, SA
2
PT Inovação
2
TOTAL
28
Table 19 - Number of active projects in the Optical Communications Area in 2007
123
Acron / Ref
DROM-TELESAL / 039/7.1/ADI/NOR
Title
Dimensioning of Multi-Layer Optical Networks
Funding
AdI
Descript.
Modern transport networks make use of transmission in the optical
domain and perform the routing in the electric domain. The emergence
of devices with routing capabilities in the optical domain creates a new
paradigm.
In principle, this new paradigm can increase the networks throughput
and reduce the infra-structure costs. The present challenge is to
understand how these optical routing modules should be integrated in
the
networks
to
obtain
more
flexible
telecommunication
infra-
structures, with minimum cost of installation, maintenance and
management.
These optical routing modules also induce transient effects in the
network that is essential to understand and control.
We
intend
to
treat
the
dimensioning
problem
with
probabilistic/statistics models in detriment of the deterministic models
approaches. We intend to obtain simple causal relationships between
critical aspects in the dimensioning problem and to obtain results with
a high degree of confidence with less computational time.
We are going to focus our research on Multi-Layer Survivable Optical
Networks with optical and electric routing, supported by multiple
wavelengths (WDM) optical transmission systems and optimized for IP
traffic.
124
Acron / Ref
NGPON
Title
Next Generation Passive Optical Networks
Funding
AdI,Nokia Siemens Networks
Descript.
Passive optical networks (PONs) have evolved to provide much higher
bandwidth in the access network, attracting therefore significant
interest from both standardization organizations (ITU-T and IEEE) as
well as industry and service providers. PON technology is recognized
as the most economical solution for the introduction of optical fibre in
the access network, stimulated by the need to increase the bandwidth
offered to subscribers, matching it with the transport capacity of
metropolitan networks.
Although the PON systems provides higher bandwidth than traditional
copper based access networks, there is a growing demand for further
bandwidth
increase
through
application
of
wavelength
division
multiplexing (WDM). This way several parallel data channels can be
employed in downstream and/or upstream direction. Additionally, data
security issues arising from Point-To-Multipoint architecture with
inherent broadcast nature of the downstream channel require closer
analysis of the potential threats and means of mitigation utilizing e.g.
active
countermeasures
against
malicious
activities
through
identification and isolation of suspicious ONUs It is our goal therefore
to analyze in detail (theoretically and practically) the transition process
from current TDM to future WDM-TDM PON systems, focusing on the
development of low-cost colourless Rx/Tx module for ONUs as well as
introduction of active elements into currently passive splitter/combiner
module, allowing for remote enforcement of security measures.
Additionally, we will attempt at demonstrating operation of IEEE 802.3
– 2005 compliant EPON equipment using colourless Rx/Tx modules
developed in during this project, indicating the potential market
applications of the developed solution.
125
Acron / Ref
OPTRONET / POCI 2010 - 13-05-04-FDR-00004
Title
Optimized Transponders for Robust NETworks
Funding
AdI, Siemens Networks SA
Descript.
The explosive growth of data, particularly internet traffic, has led to a
dramatic increase in demand for transmission bandwidth imposing an
immediate requirement for broadband networks. Currently core
networks widely employ WDM to offer high capacity and long reach
transmission capabilities. WDM has recently started becoming a very
attractive technology also for metropolitan area networks where the
major requirement is cost-efficiency. A real catalyst motivating the use
of WDM in MANs is its promise of transparency offering elimination of
opto-electronic regenerations. In both network segments the use of
transparent solutions introduces impairments penalizing the system
performance. These impairments can be significantly suppressed using
purposely designed and optimized systems incorporating advanced
modulation formats and equalization techniques that assure that the
signal performance remains adequate under worst case conditions.
The OPTRONET consortium proposes work that will result in the
development of such systems and will enable the deployment of costand
performance-
optimized
transparent
optical
metropolitan
networks.
The partners of the project will design, evaluate, develop and
demonstrate novel metro-specific transceiver prototypes. A variety of
modulation formats offering great potential for optimized metro
networks will be the focus of the project. The option of electronic
channel equalization and the performance improvement that it offers
will be studied in detail. The different systems will be assessed for
technical and manufacturing feasibility, improved system/network
performance and customer value. Effort will be assigned in low cost
solutions tailored to metro requirements. Simulations will analyze the
performance of the systems in a reference WDM metro network, and
126
will determine the optimum implementations for the variety of
modulation formats and equalization techniques. Consequently novel
transmitters based on advanced modulation formats and receivers
offering dynamic signal equalization will be designed and fabricated.
The developed systems will be evaluated in laboratory test-beds. In
order to verify the proposed solutions a field trial will be performed
using real metropolitan networks delivering different types of highbandwidth services to end-users. The aim of the project is to provide
guidelines on technology choices, to define the requirements for
optical interfaces and develop advanced transceiver systems in order
to meet user as well as operator requirements towards broadband
metropolitan topologies.
Acron / Ref
COST 291
Title
Towards digital optical communications
Funding
ESF
Descript.
The primary objective of the COST Action “Towards Digital Optical
Networks” is to focus on novel network concepts and architectures
exploiting the features and properties of photonic technologies, to
enable future telecommunications networks. It is aiming to propose a
new generation of systems and networks that will accommodate the
unpredictable and growing size of data files and messages exchanged
and stored as well as real time services (e.g. voice, video etc) over
global distances requiring an agile Communication Grid supporting
quality of services. These need to provide end-toend bandwidth for
transmission of traffic for applications such as information retrieval,
downloading (often multimedia) web software, exchange of various
type of software (hundreds of Mbytes) and data models (Gbytes) etc
as well as real time multimedia applications.
These systems need to be very flexible and rapidly reactive to
127
efficiently accommodate the abrupt and unpredictable changes in
traffic statistics introduced by current and future applications with low
endto- end latency. They will enable advanced features such as
efficient and simple multicasting and broadcasting of broadband
signals. In general, they need to support a future proof, flexible,
efficient and bandwidth-abundant fiber-optic network infrastructure
capable of supporting ubiquitous services in a resilient manner offering
protection and restoration capabilities as well as secure services to the
users.
Transparency to various digital signals and protocols is required to
eliminate the need for multilayer complex network architectures
suffering
by
poor
scalability
for
data
services,
high
latency,
complicated network management and high cost. This migration can
be gradually achieved by removing and/or integrating intermediate
layers.
Flat
and
upgradeable
network
architectures
supporting
photonic core and access technologies with intelligent edge nodes at
the interfaces will form a universal infrastructure offering a variety of
services supported by multiple operators. The ease of maintenance,
provisioning and resilient operation required in this type of networks
will
be
achieved
through
advanced
routing
and
management
mechanisms, eliminating the requirement for ever increasing amounts
of complex software raising the cost and limiting the network reliability
and availability.
This advanced photonic infrastructure will employ optical signal
processing and dynamic impairment management to eliminate the
limitations of the analogue nature of traditional optical networks,
dense
wavelength
division
multiplexing
technologies
for
signal
transmission and routing, and optical packet and/or burst switching to
provide fine bandwidth granularity, network efficiency and flexibility.
128
Acron / Ref
Title
e-Photon ONe + / 027497
e-Photon/ONe + – Optical Networks:Towards Bandwidth Manageability
and Cost Efficiency
Funding
EU, IST Programme
Descript.
Specific Research goals
Although it is understood that funding research is not a primary goal
of a NoE, joint research projects (JPs), aiming at integration by means
of focused research, were activated within e-Photon/ONe.
Reflecting new research trends five new JPs have been defined for the
first 18 months of e-Photon/ONe+. Within JPs different partners work
together and pursue common goals in a well coordinated and focused
research activity. These projects serve as an important catalyst toward
integration inside the NoE. The new JPs of e-Photon/ONe+ will focus
on:
- JP-G: “Optical networking for grids and e-science”
- JP-B: “Optical burst switching”
- JP-S: “Electro/optic switching architectures”
- JP-E: “Mitigation of optical transmission impairments by electronic
means”
- JP-T: “Dynamic and distributed optical monitoring and equalization”
New JPs could later be added, according to proposals coming from the
VDs.
Specific integration goals
Virtual Departments are the key instrument inside the NoE to foster
integration. The main goals of VDs are the following.
- To create consensus on key research issues to be investigated in
optical networking and focus the partners’ research efforts on such
issues
129
- To define and foster the creation of specific joint research activities
among partners
- To foster the publication of joint research results by the partners
- To stimulate the regular, short term exchanges of people between
partners, aiming at the involvement of at least one person from every
partner in such a scheme
- To stimulate the long term exchanges of young researchers between
partners, aiming at the involvement of at least one young researcher
from every partner
- To stimulate the joint supervision of PhD students
- To stimulate the integration and sharing of lab infrastructures and
resources
Specific dissemination goals
- To organize Summer and Winter technical schools
- To organize workshops where young researchers can present their
research work, mainly co-located with Summer and Winter schools
- To support the ONDM conference (IFIP Working Conference on
Optical Network Design and Modelling), with a significant involvement
in
its
organization,
and
to
maintain
strong
links
with
other
international conferences on optical networking and communications To establish links with other projects in the field, and with a number of
industry associations or professional organizations, at a national level,
at a EU level (IST and non IST, other NoEs etc), and at an
international level
-
To
provide
technical
and
research
support
to
European
manufacturers, vendors and operators
- To stimulate spin-offs from academic research.
130
Acron / Ref
Title
ISIS / 26592
InfraStructures
for
broadband
access
in
wireless/photonics
and
Integration of Strengths in Europe
Funding
EU,IST Programme
Descript.
In the context of ever increasing demands for higher bit rates and the
convergence of telecommunication networks, radio technology offers
flexibility while optical fibre technology offers the required capacity.
ISIS
aims
to
strengthen
European
scientific
and
technological
excellence in: (i) low cost optical solutions for broadband access; and,
(ii) the merging of wireless and photonic technologies. ISIS addresses
broadband analogue and digital communication systems, and the
contribution of optical technologies (in the domain of microwave and
millimetre-wave photonics) to systems for future fixed and mobile
broadband access.
Low-cost access and edge network equipment, service-enabling
technologies and platforms, and increased bandwidth capacity are all
addressed, together with advanced wireless network technology that
can exploit the millimetre-wave bands.
ISIS creates a new European infrastructure by integrating a critical
mass of researchers from 19 organisations. All partners are recognised
centres of excellence in the area, from 10 different countries within
Europe, and from two outside. The ISIS Network of Excellence allows
Europe to gain and maintain a dominant position in this emerging field
by integrating the individual centres of excellence into a single entity.
The Joint Programme of Activities includes significant integrating
mechanisms
such
as
joint
use
of
infrastructures,
mobility
of
researchers, and coordination of partners’ research activities. This last
action includes a joint technical research programme that includes the
development of joint research platforms and tools on: (i) broadband
optoelectronic
architectures
and
functions,
(ii)
broadband
131
optoelectronic
technologies,
and
(iii)
optoelectronic
broadband
characterisation and test. These platforms involve the integration of
testbeds, facilities and equipment across Europe to further enhance
the research potential within ISIS and are at the core of the project.
Management of knowledge and activities to spread excellence are fully
addressed: 4 workshops/seminars, 13 training courses and 2 summer
schools are to be organised over the 3 year duration of the project,
and over 30 researcher exchanges are envisaged. All activities in ISIS
will be orchestrated by a unified management structure constituted
from both academic partners and industrial representatives (the latter
from the 4 partners in ISIS and 4 invited companies).
Acron / Ref
Teclar / POCI/A072/2005
Title
Alternative techniques for Raman amplification
Funding
FCT/POCI
Descript.
The major objective of this project is to develop alternative techniques
for Raman amplification. For achieve that goal we intend to used fibre
Bragg gratings conjugated with Rayleigh scattering or double Rayleigh
backscattering in order to produced the appropriate pump signal for
optical amplification.
Acron / Ref
OreO POCI/CTM/59075/2004
Title
Organic/Inorganic hybrids for Integrated Optics
Funding
FCT/POCI
Descript.
a) To investigate sol-gel derived OIH, such as di-ureasils, diurethanesils, di- and mono-amidasils, and aminosils combined with
photopolymerizable MAPTMS host as material substrate for production
132
of IO architectures
b) To investigate the influence in the OIH PL features of chemical
factors such as, organic and inorganic precursors, number and type of
linkages and synthesis method
c) To investigate the chemical-physical nature of the RT OIH PL
features
d) To compare by waveguide numerical simulation methods the
relevant
properties
for
optical,
electrical
or
thermal
actuation
(nonlinear refractive index, thermo-optic and electro-optic coefficients)
of the OIH with those typical of subtract materials used nowadays,
silica, silicon, lithium niobate, polymers, glass or III-IV semiconductors
e) Fabrication of planar waveguides with the proposed OIH
f) To implement enabling solutions for future high debit optical
networks, such as narrow band optical filter and low finesse optical
cavities.
Acron / Ref
IP over WDM / POSC/EEA-CPS/59566/2004
Title
Integration Strategies for IP over WDM Networks
Funding
FCT/POSC
Descript.
The main objectives of this project are:
-To evaluate different transport network alternative approaches
namely: IP/SDH/WDM, IP/WDM and IP/OTN. These configurations will
be evaluated in terms of cost effectiveness, management facility,
reconfigurability, scalability, QoS performance, and reliability;
-To identify fast and efficient survivability schemes for IP/WDM and
IP/OTN networks;
-To investigate the impact of different signalling schemes on the
restoration time of IP over WDM networks and how these signalling
133
schemes fit into the GMPLS and ASON control plane;
-To identify solutions to provide service differentiation on IP optical
networking;
-To define experiments to assess the Project results and design a testbed for future evaluation.
To accomplish theses objectives the project is organized in four tasks:
Task 1- Evaluation of backbone architecture for IP optical networking;
Task 2- Survibability schemes; Task 3- Differentiated QoS; Task 4Test-bed design.
Acron / Ref
CONPAC / POSC/EEA-CPS/61714/2004
Title
CONtention free all-optical PACket switch (CONPAC)
Funding
FCT/POSC
Descript.
The project focuses on the design, optimization and demonstration of
an all-optical packet switch, with a fixed length routing table (2
ports), transparent to short packets, at high data rate (40Gbit/s),
implementing a simple contention resolution strategy. Its potential
impact on both the present and future networks will also be assessed.
The main driver of the optimization activities will be to achieve the
best
possible
balance
between
simplicity,
performance
and
integrability of these devices, since these are critical issues.
Specifically, we aim to demonstrate a small packet switch, with a
minimal routing table (2 ports) which is by looking for three main
building blocks:
1. correlator and code;
2. switching device;
3. delay line or wavelength converter.
134
The starting points:
1. time/wavelength codes with optical Fiber Bragg Gratings;
2. cross gain modulation of a SOA; a UNI gate; and a SOA based
Mach-Zehnder interferometric gate.
3. fiber spool, self pumped FWM converter .
Acron / Ref
SHOTS / POSC/EEA-CPS/56959/2004
Title
Super High-capacity Optical Transmission Systems
Funding
FCT/POSC
Descript.
1) Proposal of a new signalling format for UDWDM systems; 2)
Comprehensive study of optical single sideband formats for UDWDM
systems; 3) Study of differential phase shift keying-based signalling
formats for UDWDM systems; 4) Generalisation of previous analysis of
cross-phase
modulation
induced
degradation
in
dispersion
compensated intensity modulation – direct detection (IM-DD) DWDM
systems; 5) Extension of a previous analytical theory of four wave
mixing
in
dispersion
compensated
IM-DD
DWDM
systems;
6)
Generalisation of a previous analytical theory of stimulated Raman
scattering in dispersion compensated IM-DD DWDM systems; 7)
Development and application of a general analytical tool to recognise
and minimise the limitations of nonlinear fibre effects in dispersion
compensated DWDM systems with arbitrary parameters and high
(tens) channel count.
Acron / Ref
ARPA / POSC/EEA-CPS/55781/2004
Title
Techniques and Algorithms for Raman Multi-Pump Allocation
Funding
FCT/POSC
135
Descript.
The project focuses on the feasibility to design low cost, flat gain, as
high spectral wide fiber Raman amplifiers. In the first year of work, we
will develop a first version of an algorithm that enables the
optimization of wavelength allocation and output power of the pump
lasers. This task will be finished during the second year of the project,
where a precise and robust allocation algorithm will be presented.
In the second year we will produce two RFA prototypes, based in
resonant Bragg cavities and low cost pump lasers, taking into account
the previously derived optimization results. Such RFA prototypes will
be capable of amplification over at least two spectral windows (S,C,L).
The main goal of the second year is to validate the developed
prototypes (and algorithm) in a high debit optical network though the
prototypes overall performance and capacities. The validation tests will
occur using a burst signal and in an optical recirculating loop to access
the cascability performance
Acron / Ref
Title
PMD / POSI/CPS/47389/2002
Polarization Mode Dispersion in High-Speed Optical Communication
Systems
Funding
FCT/POSI
Descript.
The first goal of the project is to identify the modulation schemes
that best tolerate a certain level of PMD at 40 Gbit/s and above. The
second objective is to develop a dynamic PMD compensator.
Polarization-mode dispersion (PMD) is a key limiter in the deployment
of optical systems transmitting at 40 Gbit/s or higher bit rates per
channel.
Fiber-based PMD is caused by an asymmetry of the fiber core, in
which light polarized in one axis travels faster than light polarized in
the other orthogonal axis. This asymmetry of the fiber core can be
136
accidentally introduced in the manufacturing process, and is a
permanent feature of the fiber, or can be due to external effects as
temperature variations or mechanical stress.
Acron / Ref
Title
ROFWDM / PTDC/EEA-TEL/68973/2006
Design
and
Optimisation
of
WDM
Millimetre-Wave
Fibre-Radio
Systems
Funding
FCT/PTDC
Descript.
The main results of this project will be disseminated through
publications in scientific journals and international conferences as
well as technical reports. This will help promote future cooperation
and will allow other R&D institutions to share the results and the
exchange of ideas.
At the national level the results of this project will be reported on two
main
events
in
this
area,
namely
the
''Telecommunications
Conference'' and the ''Symposium on Enabling Optical Networks'' an
yearly event, which INESC and IT-Aveiro are the main organizers.
During the course of the project we propose to organize a workshop,
with the collaboration of all partners, dedicated to the presentation
and dissemination of results.
In addition the partners within this project, based on mutual
cooperation,
will
pursue
the
exploitation
of
results,
namely,
technology transfer, standardization. In order to meet this target the
academic/research
institutions will collaborate
closely
with
the
industrial partner Siemens, SA. Siemens, will use its position as a
leading manufacture of advanced fiber optic and radio networks to
explore
possible
scenarios
of
technology
transfer,
system
specifications of WDM fibre-radio system architectures and the
convergence between the super broadband wired and wireless access
networks.
137
Acron / Ref
Title
THRONE / PTDC/EEA-TEL/66840/2006
Devices and techniques for optical processing in high bit-rate
networks
Funding
FCT/PTDC
Descript.
The main objectives of the project are:
- Identify the main limitations associated with high capacity optical
communications.
- Investigate and promote new technological solutions for the
identified limitations.
- Investigate and promote new devices for low cost passive all-optical
processing.
- Implementation of a state of the art FBG fabrication system.
- Experimental evaluation of the proposed solutions with the
presentation of prototypes and with an experimental assessment.
Acron / Ref
FEFOF / PTDC/EEA-TEL/72025/2006
Title
Fuse effect on optical fibers
Funding
FCT/PTDC
Descript.
The project focuses on the feasibility to study the effects of
propagation high power signals on optical fibers.
The following sub-objectives, will be attained:
a) To accurately model the catastrophic fuse effect and foresee its
evolution in accordance with the fiber type and propagation power.
b) To systematically obtain the ignition and propagation power
threshold for different types of fibers (SMF, DSF and NZDFS) for
138
several bending conditions and analyze the impact of aging in these
values.
c) To fully understand and predict the damage produced in several
types of optical connectors.
d) Develop a solution to isolate the propagation of the catastrophic
fuse effect (fuse stopper).
This project will integrate a heterogeneous research group with
knowledge in different research areas, such as telecommunications,
optics and material science. This multidisciplinary group has the
potential to deeply emerge in this subject in order to fully understand
the problem and to successfully conclude the project objectives.
Acron / Ref
MOTION / PTDC/EEA-TEL/73529/2006
Title
Monitoring and compensaTion of Impairments in Optical Networks
Funding
FCT/PTDC
Descript.
This project will focus on:
- Develop OIM modules to allow the evaluation of multi-channel
oriented impairment, OSNR, XPM and linear crosstalk.
- Develop OIM modules to assess GVD and PMD.
- Study and identify OIC modules to mitigate optical GVD and PMD.
- Experimental evaluation of the produced prototypes.
-To integrate and test the MOTION system on a test network, where
the behavior of a real network can be reproduced.
139
Acron / Ref
Oreo2 / PTDC/CTM/72093/2006
Title
Organic/Inorganic hybrids for Integrated Optics - 2
Funding
FCT/PTDC
Descript.
- To investigate sol-gel derived amine functionalised OIH, such as diureasils, modified by ZPO and MA as material substrate for
production of passive IO devices
- To investigate the influence of the processing of the materials as
thin films and monoliths on the PL features of the undoped host
- To investigate the influence of ZPO concentration and different
ratios ZPO:MA on the local structure and PL features
- To perform waveguide geometric optimization in order to achieve
the required functionalities of the desired devices
- Fabrication of channel waveguides with the proposed OIH processed
as monoliths an thin films
- To implement enabling solutions for access optical networks, such
as low cost optical power splitters and optical filters.
- To investigate the role of the OHI processing mode (monoliths and
films) in the structural, photoluminescence and waveguide features.
Acron / Ref
RoFnet / PTDC/EEA-TEL/71678/2006
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
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
140
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
Title
Sub-Lambda / PTDC/EEATEL/71819/2006
Sub-diffraction
imaging
systems
formed
by
microstructured
waveguides
Funding
FCT/PTDC
Descript.
Development of new imaging systems (based on metamaterial
technology)
with
subwavelength
resolution
at
infrared/optical
frequencies.
Acron / Ref
CABRAL
Title
CooperAção BRasil – PortugAL em redes ópticas
Funding
GRICES
141
Descript.
This project studies circuit- and burst-switched optical networks. The
influence of the physical level on the routing and wavelength
assignment, and the development of models for optical packect
switching will be investigated in the project. The main goal of the
project is to promote the working together of portuguese and brazilian
researchers in the field of optical communications.
Acron / Ref
Quantum
Title
Quantum Effects in High Speed Optical Communication Systems
Funding
IT/LA
Descript.
The major goal of the Quantum project is to start a systematic
investigation
of
quantum
systems
at
the
Institute
of
Telecommunications. The aim of these studies is to develop accurate
theoretical
models,
which
allow
experimental
manipulation
of
quantum systems. The project is going to focus is research in
quantum
processes
with
likely
great
impact
in
the
field
of
telecommunications, mainly in the area of optical communications.
Acron / Ref
RaTON
Title
Radio Techniques over Optical access Networks
Funding
IT/LA
Descript.
- study the advantages and disadvantages of this type of approach
with respect to others like Optical CDMA, traditional Radio Over Fiber,
and simple FTTH direct modulated distribution through ATM or other
time or wavelength multiplexed networks
- study the implementation scenarios for this technology through the
determination of its fundamental limitations in the pursued scenario
(namely due to dispersion and nonlinear effects)
142
- Implementation of a field trial demo using adapted common
terminals based on a radio repeater.
- Expandability options for having flexible bandwidth through the
choice of codes, expansion of the network through wavelength
division multiplexing or polarization division multiplexing, observation
of new receiver options and techniques adapted to the particular nonlinear transmission medium.
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.
Acron / Ref
ROTA
Title
Advanced Optical Network
Funding
Descript.
Implementation of an optical test platform between Aveiro and Lisbon
Acron / Ref
ROPE
Title
Ethernet Passive Optical Networks
Funding
143
Descript.
Investigation of new mechanisms for enhanced protection, security
and dynamic bandwidth management for the next generation of
EPONs.
Acron / Ref
LoCOPON
Title
LOCO-PON(LOw COst PON)
Funding
PT Inovação
Descript.
Este projecto pretende avaliar as possibilidades de utilização de
tecnologia óptica multigigabit em redes de acesso. Para isso, será
desenvolvido e validado um protótipo laboratorial baseado em
diversas alternativas de componentes de baixo custo. Pretende-se,
ainda, avaliar os custos e a fiabilidade da tecnologia utilizada, por
forma a possibilitar um desenvolvimento de uma aplicação comercial.
Acron / Ref
Raman
Title
Raman Amplification for CWDM Systems
Funding
PT Inovação
Descript.
Development of an optical amplifier, with very broad bandwidth,
suitable to be used in coarse wavelength division multiplexing
systems (CWDM).
144
4.2.5
Final Year Projects
CoEnd
Title
Supervisors
Date
Designing Optical filters based 7 /
Jorge Pinto
on their requisits
2007
Geração de sinais em Banda
Miguel Vidal
Daniel
7/
Lateral Única por Filtragem
Drummond
Fonseca,
2007
Óptica
Implementação de
Marco Rafael
Daniel
transmissor óptico em banda 7 /
Gomes de Pinho Fonseca,
lateral única com sistema de 2007
controlo
Optimization and Control of an
7/
all optical side band
Liliana Costa
2007
suppression
Support network for sensors
7/
Ricardo Rocha
and actuators in optical
2007
networks
Wearable optical sensor for
7/
João Decoroso
wireless 3D monitoring of
2007
body parts
Paulo Alexandre
José
Optical Single Side Band
9/
Ferreirinha de
Modulators
2007
Almeida
José Filipe Fonseca da
9/
Optical Wavelength Converters
Silva
2007
Supervisor
António
Teixeira
Paulo
Monteiro
Paulo
Monteiro
António
Teixeira
António
Teixeira
António
Teixeira
Henrique
A. Silva
Henrique
A. Silva
Student
Table 20 - List of Final Year Projects running in the Optical Communications Area during 2007
MSc Theses
Supervisor
Student
António
Teixeira
João Paulo
Madaleno
Paulo
Monteiro
Vitor Alves
Martins da Silv
António
Teixeira
Manuel Matos
Kátia Cesaltina
António Topa Macedo Sousa
Brito
CoSupervisors
Paulo André,
Title
Efeitos da Camada óptica no
ruteamento de pacotes IP
Emissor Óptico em Banda
Lateral Única para Elevados
Ritmos de Transmissão
Optimização de redes ópticas
em Operação
Dispositivos Fotónicos
Passivos para Óptica
Integrada
End
Date
4/
2007
4/
2007
4/
2007
7/
2007
145
CoSupervisors
Student
António
Teixeira
João Prata
Adolfo
Cartaxo
Ana Filipa
Guardado
Adolfo
Cartaxo
Sérgio Martins
dos Santos
João Pires
Ana Carvalho
Paulo André
Ana Maria Rocha
Paulo André
Paulo Fernando
da Costa
Antunes
João Pires
João Galhordas
Paulo André
André Filipe
João Lemos
Moreira Martins Pinto,
Rogério
Nunes
Nogueira
Luis Amaral
Paulo André
Carlos Miguel
Santos Vicente
João Pires
Gustavo Campos
Sebastião
Performance comparison
between SDH/WDM networks 12 /
and Optical Burst Switching
2007
for supporting IP/MPLS traffic
Paulo André
Cláudio Emanuel
Gomes
Ferreirinho Lima
Rodrigues
Redes ópticas passivas de
baixo custo
Ilda Abe,
João Lemos
Pinto,
Title
End
Date
Supervisor
Controlo de subsistemas de
9/
processamento integralmente
2007
óptico
Analysis of four wave mixing
11 /
induced distortion in
dispersion-compensated WDM 2007
links
Limitations imposed by
stimulated Raman scattering 11 /
in dispersion-compensated
2007
WDM links
Planning and performance
analyses of next generation
11 /
2007
SDH/WDM networks for
supporting IP traffic
Amplificação Raman em
comunicações ópticas
12 /
2007
baseada em fonts ópticas
incoerentes
ANÁLISE DINÂMICA DE
12 /
VIBRAÇÃO EM ESTRUTURAS
2007
COM SENSORES DE BRAGG
Design and analysis of
metropolitan optical networks 12 /
2007
in the presence of physical
layer impairments
Estudo de LEDs de alta
12 /
potência para iluminação
2007
Integrated platform for gait
optical analysis
12 /
2007
Optimização das Condições de
Síntese e Processamento de 12 /
Híbridos Orgânicos2007
Inorgânicos para Óptica
Integrada
12 /
2007
146
Supervisor
Student
Luís Miguel
Henrique
Branco Batista
José A. Silva
Sá
David Manuel
António Topa Teixeira
Fernandes
António
David Campos
Teixeira
António
Pedro Coelho
Teixeira
Maria de Fátima
Paulo André
Domingues
Rogério
Diana Seiça
Nunes
Fidalgo
Nogueira
CoSupervisors
Paulo André,
Carlos Paiva,
João Lemos
Pinto,
António
Teixeira,
Armando
Abel Correia
Nolasco Pinto
António
Teixeira
António
Teixeira
Rogério
Nunes
Nogueira
António
Teixeira
António
Teixeira
António
Teixeira
António
Teixeira
António
Teixeira
António
Teixeira
António
Teixeira
Paulo André
Rogério
Nunes
Nogueira
Hugo martins
André Mota
Paulo André,
Title
Modelling and Nonlinear
1/
Applications of Quantum-Dot
2008
Semiconductor Optical
Amplifiers
Dispersion Management in
Optical Fibers
5/
2008
Back and front office web;
DSD
characterization of passive
optical networks
Monotorização de Estruturas
por Varrimento Laser
6/
2008
6/
2008
6/
2008
Optical Monitoring Techniques
6/
2008
Planning and Dimensioning of
6/
Optical Networks Based on
2008
Optical Switching
6/
Reconfigurable networks
2008
6/
reconfigurable Test network
2008
Remote Structure Health
Monitoring
Nelson Pereira
End
Date
6/
2008
6/
2008
Signalling for optical dynamic 6 /
Ricardo Rocha
networks
2008
6/
João andrade
Paulo André,
strategies for NG-PONs
2008
Transparent optical node for 6 /
Albano Baptista Mário Lima,
PONs
2008
Gonçalo José
transparent system for
6/
Paulo Monteiro,
Coreta Brito
bandwidth enhancement
2008
Rogério Nunes
6/
Maurício Pereira
wearable sensors
Nogueira,
2008
Beatriz Sousa Wearable sensors with 3D
6/
João Decoroso
Santos,
interface
2008
Amplificadores ópticos em
7/
Ana Isabel Alves
fibra dopada de alta potência 2008
André Vieira
Silvia Correia
Security in PONs
João Lemos
Pinto,
Integration of optical fibers in 7 /
2D and 3D mesh structures
2008
147
CoSupervisors
Armando
José Ferreira
António Valente
Nolasco Pinto
da Rocha,
Supervisor
Student
Title
Optimum Routing in
Survivable Optical Networks
Photon-Pair Generation in
Armando
Nuno Alexandre
Optical Fibers Through FourNolasco Pinto Silva
Wave Mixing
Armando
José Eduardo
Polymer Optical Fibers for
Nolasco Pinto Machado
Home Networks
Armando
João Melo
Transient Effects in Optical
Nolasco Pinto Ferreira
Raman Amplifiers
Geração de sinais para
Afonso Resende Rogério Nunes sistemas de transmissão sem
Manuel Violas
Vilela
Nogueira,
fios de alto débito utilizando
técnicas fotonicas
Carlos André
João Nuno
Rede Wimax suportada num
Manuel Violas
Silva Morais
Matos,
sistema de rádio sobre fibra
Planificação e optimização de
Micaela Santos
redes de comunicações
Paulo André
Bernardo
ópticas com amplificação
Raman
Andrey
Optical metropolitan area
Adolfo
Guimarães
networks with direct
Cartaxo
Gomes Cravid
modulation
Sérgio António
Optical networks with
Daniel Diogo
Adolfo
dos Santos
insertion and extraction of
Trindade
Cartaxo
Ramos Lopes e
optical label and high spectral
Fonseca,
Paiva
efficiency
Ruben Tiago
Daniel Diogo
Transmission of signals in allAdolfo
Fernandes
Trindade
optical label switched
Cartaxo
Gomes
Fonseca,
networks
António
Carlos Almeida Mário Lima,
3G radio access over Fiber
Teixeira
Rogério
Techniqes and Devices for
Carlos Alberto
Nunes
high bit rate optical networks
Ferreira Marques
Nogueira
João Lemos
Iluminação pública com LEDs
Paulo André Daniel Trigo
Pinto,
de alta potência
Distribution of M-PAM ultraAdolfo
Tiago Valente
wideband radio signals in
Cartaxo
FTTH networks
End
Date
7/
2008
7/
2008
7/
2008
7/
2008
8/
2008
8/
2008
9/
2008
10 /
2008
10 /
2008
10 /
2008
11 /
2008
11 /
2008
12 /
2008
2/
2009
Table 21 - List of MSc Theses running in the Optical Communications Area during 2007
148
PhD Theses
Supervisor
Student
CoSupervisors
António Teixeira
Ruben
Soares Luís
Henrique José A. Silva
Marek
Paulo Monteiro,
Hajduczenia
João Pires
Luis Cancela
Adolfo Cartaxo
Natasa
Bratislav
Pavlovic
Adolfo Cartaxo
Daniel Diogo
Ferrão
Paulo Monteiro,
Trindade
Fonseca
António Teixeira
Tiago Silveira Paulo Monteiro,
António Teixeira
Sergio Junior
Paulo Monteiro
Nuno Manuel
Garcia dos
Santos
Adolfo Cartaxo
Mário Rui
Guerreiro
Leiria
Paulo Monteiro
Ana Patrícia
dos Santos
Ferreira
Paulo Monteiro,
Carlos Sá da
Costa
Title
Design and
Optimization of
optical routing
techniques and
devices
Multiplexing and
Multiple Access
Techniques for
Passive Optical
Networks
Multichannel
optical networks
based on
hierarchical ring
topologies
Signaling formats
for dense
wavelength
division
multiplexing
systems
Single side-band
optical
communication
systems
All-optical signal
processing
Amplificação de
sistemas de
comunicação
ópticos
Arquitecturas de
Redes com
Comutação Óptica
de Agregados de
Pacotes IPv6
Optical
communication
systems with
optical
regenerators
Técnicas de
Modulação e
Igualação para
Transmissão
Óptica a Taxas
End
Date
6/
2007
1/
2008
3/
2008
4/
2008
4/
2008
6/
2008
6/
2008
7/
2008
7/
2008
7/
2008
149
CoTitle
Supervisors
Optical processing
Rui Miguel
devices and
Paulo André
Oliveira
techniques for next
Meleiro
generation optical
networks
Análise experimental
e teórica da
propagação de
pulsos ultra-curtos
João Lemos
em filtros ópticos
José Luiz
Pinto,Rogério
Paulo André
interferométricos
Sousa Lima
Nunes
para aplicação e
Nogueira
desenvolvimento de
redes de
comunicações
totalmente óptica
Integrated multifunctional photonic
Lara Penedo Paulo
Paulo André
devices for optical
Pellegrino
Monteiro,
communication
purposes
Optimisation of
Paulo
optical networks
João Pires
João Pedro
Monteiro,
supporting IP/MPLS
traffic
Optimization of
Optical
Meire
Telecommunication
Fugihara
Systems Using
Distributed Raman
Amplification
Grid Computing in
João da Silva
Henrique José A. Silva
Optical Burst
Pereira
Switched Networks
Supervisor
Student
Sílvia
Henrique José A. Silva Medeiros Vaz
Pato
Paulo Monteiro
Pedro Ricardo
Morais Inácio
Next Generation
Optical Access
Networks
End
Date
9/
2008
10 /
2008
10 /
2008
12 /
2008
12 /
2008
7/
2009
7/
2009
Segurança na
Comunicação
Remota Através de
Redes de Acesso
7/
com Detecção de
2009
Intrusões em Pontos
de Agregação IntraDomínio
150
Supervisor
Paulo Monteiro
Paulo André
CoEnd
Title
Supervisors
Date
Regeneração Óptica
José Filipe da
9/
em Redes com WDM
Silva Pina
2009
Student
Berta Maria
Barbosa Neto
Armando Nolasco Pinto Claunir Pavan
Nelson de
Jesus
Corderio
Muga
Paulo Monteiro
Rogério Nunes
Nogueira
Rogério Nunes
Nogueira
Miguel Vidal
Drummond
Hugo Lima
Nelia Alberto
Rogério Nunes
Nogueira
Lucia Bilro
Rogério Nunes
Nogueira
Rogério
Dionísio
Adolfo Cartaxo
Tiago Manuel
Ferreira Alves
João Pires
João Santos
Adolfo Cartaxo
Nelson
Manuel
Simões da
Costa
Alternative
techniques for
Raman amplification
Dimensioning MultiLayers Optical
Networks
Polarization Effects
in Fiber Optics
Communication
Systems
All optical processing
Rogério Nunes in fibre optical
Nogueira,
communication
systems
Advanced Fiber
Sensors
Biosensors based on
Fiber Bragg Gratings
Optical Metrology in
Medicine and
Rehabilitation
António
Optical monitoring
Teixeira,
systems and devices
Transmission
systems of ultrawideband radio
signals over optical
fibre
Physical and logical
aspects of Ethernet
Paulo
over WDM networks
Monteiro,
supported in ring
topologies
Optical
communication
systems with multisymbol digital phase
modulation
12 /
2009
12 /
2009
12 /
2009
9/
2010
10 /
2010
10 /
2010
10 /
2010
10 /
2010
10 /
2010
12 /
2010
10 /
2011
Table 22 - List of PhD Theses running in the Optical Communications Area during 2007
151
4.2.6
Publications
Optical Communication Systems
Book Chapters

André, P.S; A. N. Pinto; A.T. Teixeira; B. Neto; S. Junior; R. F. Rocha; J. L.
Pinto; M.C. Fugihara; ; M. D. Domingues; " New challenges in Raman
amplification for fiber communications systems " - Chapter in Optical Fibers
Research Advances , Frank Columbus , Nova Publisher , 2007 .

Fonseca, D.F.; A. Cartaxo; P. Monteiro; " Topics on OSSB modulation for 40
Gb/s transmission systems " - Chapter in Advanced technologies for highspeed optical communications , Lei Xu , Research Signpost,2007 .
Papers in Journals

Rebola, J. L. ; A. Cartaxo; " Accuracy of Gaussian approach for the
performance
evaluation
of
direct-detection
receiver
with
partially
polarized noise ", Fiber and Integrated Optics , Vol. 26 , No. 3 , pp. 135 146 , May , 2007 .

Fonseca, D.F.; A. Cartaxo; P. Monteiro; " Adaptive opto-electrical filters
for improved generation of optical single sideband signals with different
pulse shapes ", IEEE/OSA Journal of Lightwave Tech. , Vol. 25 , No. 8 ,
pp. 2175 - 2186 , August , 2007 .

Fonseca, D.F.; A. Cartaxo; P. Monteiro; " Comparison and optimization of
optical single sideband transmitters ", IEE Proceedings, Part J –
Optoelectronics , Vol. 1 , No. 2 , pp. 82 - 90 , April , 2007 .

Luis, R.S.; A.T. Teixeira; P. Monteiro; " Design of optical filter for
increased efficiency of wavelength converters based on fiber XPM ",
Optics Communications , Vol. 271 , No. 1 , pp. 100 - 104 , March , 2007.
152

Luis, R.S.; D.F. Fonseca; A.T. Teixeira; P. Monteiro; " Dispersion
management of electrically pre-compensated RZ single-sideband signals
at 10 Gb/s without inline dispersion compensation ", IEEE Photonics
Technology Letters , Vol. 19 , No. 14 , pp. 1039 - 1041 , July , 2007 .

Fonseca, D.F.; A. Cartaxo; P. Monteiro; " Influence of the extinction ratio
on the intra-channel nonlinear distortion of 40 Gb/s return-to-zero
transmission systems over standard fiber ", IEEE/OSA Journal of
Lightwave Tech. , Vol. 25 , No. 6 , pp. 1447 - 1457 , June , 2007 .

Fonseca, D.F.; R.S. Luis; A. Cartaxo; P. Monteiro; " Near pseudo-linear
regime in 10 Gb/s single sideband-alternate mark inversion systems
using
electrical
dispersion
pre-compensation
",
IEEE
Photonics
Technology Letters , Vol. 19 , No. 15 , pp. 1127 - 1129 , August , 2007 .

Pires, J. J. O. ; L. G. C. Cancela; " On the probability density function of
an optical DPSK signal in the presence of intrachannel crosstalk and ASE
noise ", Journal of Optical Comm. , Vol. 28 , No. 3/2007 , pp. 229 - 233 ,
October , 2007 .

Pavlovic, N.P.; A. Cartaxo; " Optimization of single-sideband DCS-RZ
format for long-haul 43 Gbit/s/channel ultra-dense WDM systems ",
IEEE/OSA Journal of Lightwave Tech. , Vol. 25 , No. 2 , pp. 481 - 489 ,
February , 2007 .

Madureira, M.; D.F. Fonseca; R. Sousa ; M. Violas; R. L. Aguiar; A.
Cartaxo;
P.
Monteiro;
"
Postdetection
adjustable
simultaneous
compensation of DGD and GVD in a 40-Gb/s optical single-sideband
system ", IEEE Photonics Technology Letters , Vol. 19 , No. 18 , pp. 1356
- 1358 , September , 2007 .

Luis, R.S.; Clouet; A.T. Teixeira; P. Monteiro; " Pump-probe analysis of
the XPM degradation induced by 10 Gb/s ASK signals on 40 Gb/s DPSK
153
signals ", Optics Letters , Vol. 32 , No. 19 , pp. 2786 - 2788 , October ,
2007 .

Teixeira, A.T.; T. Silveira; G. Tosi-Beleffi; F. Curti; D. Forin; T. Koonen;
P.
Monteiro;
"
THEORETICAL
AND
EXPERIMENTAL
PERFORMANCE
EVALUATION OF ALL-OPTICAL MULTI-WAVELENGTH CONVERSION BY
FOUR-WAVE MIXING IN FIBER AT 10/20/40 GB/S FOR OPTICAL LAYER
MULTICAST ", Microwave and Optical Tech. Letters , January , 2007 .

André, P.S; P. Antunes; A.T. Teixeira; M. J. N. Lima; " Tolerance of
optical
filters
detuning
in
CWDM
networks
",
Photonic
Network
Communications , Vol. 13 , No. - , pp. 323 - 328 , January , 2007 .

Hajduczenia, M.; H. J. A. Silva; P. Monteiro; " 10G EPON development
process ", Proc International Conf. on Transparent Optical Networks - ICTON
, Rome , Italy , July , 2007 .

Lima, M. J. N.; R.N. Nogueira; P.S André; A.T. Teixeira; " 3G radio
distribution based on directly modulated lasers over passive transparent
optical networks ", Proc International Microwave and Optics Conf. , Bahia ,
Brazil , October , 2007 .

Antunes, P.; P.S André; A. N. Pinto; " A Simple and Inexpensive SinglePhoton Source by Means of Four-Wave-Mixing and Attenuation ", Proc Conf.
on Telecommunications - ConfTele , Peniche , Portugal , May , 2007 .

Guardado , A.; S. Santos; N. C. Costa; T. M. F. Alves ; A. Cartaxo; " A
software tool for designing wavelength division multiplexed links ", Proc
Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp.
497 - 500 , May , 2007 .
154

Cancela, L. G. C.; J. J. O. Pires; " An Approach for Calculating the
Performance of DPSK Direct Detection Systems with Semiconductor Optical
Amplifiers ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , May , 2007 .

Costa, N. C.; A. Cartaxo; " Analysis of Optimal Dispersion Map due to XPM in
10 Gbit/s WDM Links with Standard Single Mode Fibres ", Proc Conf. on
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 537 - 540 ,
May , 2007 .

Pato, S.; P. Monteiro; H. J. A. Silva; " Analysis of the Optimum APD Gain for
10 Gbits Ethernet Passive Optical Networks ", Proc Symp. on Enabling
Optical Networks - SEON , Aveiro , Portugal , June , 2007.

Teixeira, A.T.; G. Tosi-Beleffi; F. Curti; " Auxiliary Carrier Cross Phase
Modulation in High Non Linear Dispersion Flattened Fiber induced by
Supercontinuum generation ", Proc Conf. on Lasers and Electro-optic - CLEO
, Baltimore , United States , June , 2007.

Costa, N. C.; A. Cartaxo; " BER Estimation in DPSK Systems Using the
Differential Phase Q Taking into Account the Electrical Filtering Influence ",
Proc International Microwave and Optoelectronics Conference - IMOC ,
Salvador , Brazil , October , 2007.

Santos, S.; A. Cartaxo; " Comparison of power depletion and waveform
distortion limitations due to inter-channel stimulated Raman scattering effect
in WDM links ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , Vol. 1 , pp. 565 - 568 , May , 2007.

Pavlovic, N.P.; A. Cartaxo; " Dependence of optimum residual dispersion per
span on the number of spans for various signaling formats over 43 Gbit/s
SSMF
transmission
system
",
Proc
International
Microwave
and
Optoelectronics Conference - IMOC , Salvador , Brazil , Vol. 1 , pp. 653 657 , October , 2007 .
155

Alves , T. M. F.; N. C. Costa; A. Cartaxo; " Dependence of XPM degradation
on the dispersion map for 10 Gbit/s WDM links over standard-fibre
employing duobinary format ", Proc International Conf. on Transparent
Optical Networks - ICTON , Rome , Italy , Vol. Tu.A1.1 , pp. 79 - 82 , July ,
2007 .

Santos, J.; J. M. Pedro; P. Monteiro; J. J. O. Pires; " Design and Performance
Evaluation of Protected Super-PON Access Networks Using a Dedicated
Protection Ring Architecture ", Proc SEE Workshop on the Design of Reliable
Communication Networks - DRCN , La Rochelle , France , Vol. 1 , pp. 7 - 10
, October , 2007 .

Alves , T. M. F.; A. Cartaxo; " Dispersion map design for XPM suppression in
NRZ 10 Gbit/s pre-compensated WDM links using standard-fibre and 50 GHz
of channel spacing ", Proc International Microwave and Optoelectronics
Conference - IMOC , Salvador , Brazil , Vol. 1 , pp. 648 - 652 , October ,
2007 .

Costa, N. C.; T. M. F. Alves ; A. Cartaxo; " Dispersion map optimization for
XPM-limited 10 Gbit/s NRZ-IM-DD WDM links ", Proc IASTED International
Conf. on Wireless and Optical Communications - WOC , Montréal , Canada ,
Vol. 1 , pp. 274 - 279 , May , 2007 .

Pina, J. F.; H. J. A. Silva; P. Monteiro; " Evaluation of Wavelength
Conversion Based on Cross-Gain Modulation in Quantum-Dot Semiconductor
Optical
Amplifiers
for
40
Gbit/s
NRZ
Signals
",
Proc
Conf.
on
Telecommunications - ConfTele , Peniche , Portugal , Vol. I , pp. 517 - 520 ,
May , 2007 .

Hajduczenia, M.; D.F. Fonseca; H. J. A. Silva; P. Monteiro; " Fault Discovery
Protocol
(FDP)
for
Passive
Optical
Networks
(PONs)
",
Proc
IEEE
International Symp. on Computers and Communications - ISCC , Aveiro ,
Portugal , June , 2007 .
156

Madureira, M.; D.F. Fonseca; P. Monteiro; A. Cartaxo; R. L. Aguiar; " GVD
and PMD compensation using a linear adjustale filter prototype in a 40Gb/s
OSSB system ", Proc IEEE International Symp. on Circuits and System , New
Orleans , United States , May , 2007 .

Meleiro, R.; J. Castro; P.S André; P. Monteiro; " Impact of Dispersion and
Self Modulation on Crosstalk in Optical WDM Networks ", Proc Conf. on
Telecommunications - ConfTele , Peniche , Portugal , May , 2007 .

Pato, S.; P. Monteiro; H. J. A. Silva; " Impact of Mode-Partition Noise in the
Performance of 10 Gbits Ethernet Passive Optical Networks ", Proc
International Conf. on Transparent Optical Networks - ICTON , Rome , Italy ,
July , 2007 .

André, P.S; B. Neto; A.T. Teixeira; N. Wada; " Impact of Raman
Amplification on Packet Traffic ", Proc European Conf. on Networks and
Optical Communications - NOC , Stocolm , Sweden , July , 2007 .

Alves , T. M. F.; A. Cartaxo; " Impact of the dispersion compensating fibre
nonlinearity on the optimum dispersion map due to XPM in 10 Gbit/s WDM
links ", Proc Conf. on Telecommunications - ConfTele , Peniche , Portugal ,
Vol. 1 , pp. 581 - 584 , May , 2007 .

Alves , T. M. F.; N. C. Costa; A. Cartaxo; " Influence of DCM nonlinearity on
the XPM degradation in 10 Gbit/s dispersion managed NRZ-IM-DD links ",
Proc IASTED International Conf. on Wireless and Optical Communications WOC , Montreal , Canada , Vol. 1 , pp. 221 - 224 , May , 2007 .

Costa, N. C.; T. M. F. Alves ; A. Cartaxo; " Influence of dispersion
compensation granularity on the XPM-induced degradation in NRZ-IM-DD
WDM links at 10 Gbit/s per channel with 50 GHz of channel spacing ", Proc
International Conf. on Transparent Optical Networks - ICTON , Rome , Italy ,
Vol. Tu.C1.6 , pp. 151 - 154 , July , 2007 .
157

Morgado, J.; A. Cartaxo; " Influence of laser chirp and parasitics on
optimized dispersion-managed directly modulated systems operating at
10Gbit/s ", Proc International Microwave and Optoelectronics Conference IMOC , Salvador , Brazil , October , 2007 .

Pinto, A. N.; G. Agrawal; " Loss of Quantum Information Due to the Kerr
Effect in Optical Fibers ", Proc International Conference on Quantum
Information - ICQI , Rochester , United States , June , 2007 .

Pinto, A. N.; G. Agrawal; " Noise-Induced Spectral Shifts in Pseudo-Linear
Fiber-Optic Communication Systems ", Proc Conf. on Lasers and Electrooptic - CLEO , Baltimore , United States , May , 2007 .

Costa, N. C.; A. Cartaxo; " Novel Approach for BER Evaluation of DQPSK
Systems Using Differential Phase Q ", Proc IEEE Lasers and Electro Optics
Society Annual Meeting - LEOS , Lake Buena Vista , United States , Vol. MP3
, pp. 143 - 144 , October , 2007 .

Cancela, L. G. C.; J. J. O. Pires; " On the Accuracy of the Gaussian
Approximation for Performance Estimation in Optical DPSK Systems with InBand Crosstalk ", Proc IEEE International Conf. on Communications - ICC ,
Glasgow , United Kingdom , June , 2007 .

Pato, S.; R.S. Luis; P. Monteiro; H. J. A. Silva; " On The Impact of Nonlinear
Effects in 10 Gbits Ethernet Passive Optical Networks ", Proc Conf. on

Lima, M. J. N.; A.T. Teixeira; " On the propagation of UMTS radio signals
over fiber ", Proc Conf. on Telecommunications - ConfTele , Peniche ,

Santos, J.; M. Hajduczenia; J. J. O. Pires; H. J. A. Silva; P. Monteiro; " On
triplexer design for next generation Ethernet Passive Optical Network
158
(EPON) systems ", Proc IEEE AccessNets - AccessNets , Ottawa , Canada ,
August , 2007 .

Meleiro,
R.;
P.
Monteiro;
"
Optically-Addressable
Packet
Timeslot
Interchanger using a Quadruple Switch Array ", Proc OSA Optical Fiber
Communications - OFC , Anaheim , United States , March , 2007 .

Hajduczenia, M.; H. J. A. Silva; P. Monteiro; " Overflow Control Mechanism
(OCM) for Ethernet Passive Optical Networks (EPONs) ", Proc Conf. on

André, P.S; B. Neto; S. Junior; A.T. Teixeira; R. F. Rocha; " Performance
Analyses of the Average Power Method in the Calculation of the Signals
Power Evolutions in a Raman Fiber Amplifier ", Proc European Conf. on
Networks and Optical Communications - NOC , Stocolm , Sweden , July ,
2007 .

Santos, J.; Quadros; J. J. O. Pires; J. Pedro; " Performance Evaluation of
DBA Algorithms with QoS in Protected Super-EPON Access Networks using a
Dedicated Protection Ring Architecture ", Proc Conf. on Telecommunications
- ConfTele , Peniche , Portugal , May , 2007 .

André, P.S; A. N. Pinto; A.T. Teixeira; B. Neto; S. Junior; R. F. Rocha; M.C.
Fugihara; " Raman amplification using incoherent pump sources ", Proc
International Conf. on Transparent Optical Networks - ICTON , rome , Italy ,
June , 2007 .

Santos, J.; M. Hajduczenia; J. J. O. Pires; H. J. A. Silva; P. Monteiro; "
Synthesis of Multilayered Optical Thin Film Filters for 10G EPON ", Proc
Symp. on Enabling Optical Networks - SEON , Aveiro , Portugal , June ,
2007.
159

Pato, S.; P. Monteiro; H. J. A. Silva; " Techno-Economical Assessment of 10
Gbits EPON Deployment ", Proc Conf. on Telecommunications - ConfTele ,
Peniche , Portugal , May , 2007 .

Lima, M. J. N.; A.T. Teixeira; P.S André; R.N. Nogueira; " UMTS Radio
Distribution
over
Transparent
Optical
Networks
",
Proc
Conf.
on
Optical Components And Sub-Systems
Papers in Journals

Neto, B.; A.T. Teixeira; N. Wada; P.S André; " Efficient use of hybrid Genetic
Algorithms in the gain optimization of distributed Raman amplifiers ", Optics
Express , Vol. 15 , No. 26 , pp. 17520 - 17528 , December , 2007 .

Neto, B.; P.S André; " Improving the Performance of a 10 Gbit/s Optical
Communication System with a Thermally Actuated Chromatic Dispersion
Compensator Based on Chirped Fiber Bragg Gratings ", Microwave and
Optical Tech. Letters , Vol. 49 , No. 1 , pp. 124 - 127 , January , 2007 .

André, P.S; L. Costa ; " MICROWAVE DIELECTRIC PROPERTIES OF NiFe2O4
NANOPARTICLES FERRITES ", Microwave and Optical Tech. Letters , Vol. 49
, No. 6 , pp. 1341 - 1344 , March , 2007 .

Pereira, J. T.; " Modeling the frequency response of p+InP/n-InGaAs/n+InP
photodiodes with an arbitrary electric field profile ", COMPEL , Vol. 26 , No. 4
, pp. 1114 - 1122 , April , 2007 .

Neto, B.; P.S André; " Modeling the longitudinal temperature evolution of a
Chirped fiber Bragg grating submitted to temperature gradients ", Materials
Science Forum , Vol. 553 , No. - , pp. 106 - 111 , August , 2007 .
160

André, P.S; M. T. Outeiro; H. Kalinowsky; J. Voorman; J. L. Pinto; X
Xiangjun; " Optical Fiber Long Period Gratings as Salinity Sensors ", Optical
Fiber Technology , April , 2007 .

Talaia, M.; O. Abe; M. Schiller; P. Lopes; R.N. Nogueira; J. L. Pinto; " Plated
and Intact Femur Strains in Fracture Fixation Using Fiber Bragg Gratings and
Strain Gauges ", Experimental Mechanics , Vol. 47 , No. 3 , pp. 355 - 363 ,
June , 2007 .

Muga, N. J.; M. Ferreira; A. N. Pinto; " Polarization Scattering Property of
Cascaded Polarization Controllers ", ETRI Transactions , Vol. 29 , No. 6 , pp.
838 - 840 , December , 2007 .

Meleiro, R.; D.F. Fonseca; J. F. Pina; J. Castro; P.S André; P. Monteiro; "
40 Gb/s CS-RZ to RZ format conversion using a MZI-SOA integrated
switch ", Proc Pacific Rim Conf. on Lasers and Electro-Optics , Seoul ,
Korea, South , Vol. 1 , pp. 1413 - 1414 , August , 2007 .

Fernandes, C. F.; " A comparative analyis of DFB laser structures using
matrix techniques ", Proc Conf. on Telecommunications - ConfTele ,
Peniche , Portugal , Vol. 1 , pp. 275 - 278 , May , 2007 .

“Comparative study of gain optimization for multi-pumped Raman fiber
amplifiers ", Proc Conf. on Telecommunications - ConfTele , Peniche ,

Neto, B.; S. Junior; A.T. Teixeira; P.S André; " Comparative study of
gain optimization for multi-pumped Raman fiber amplifiers ", Proc Conf.
on Telecommunications - ConfTele , Peniche , Portugal , Vol. - , pp. 501 504 , May , 2007 .
161

Pina, J. F.; H. J. A. Silva; P. Monteiro; J. Wang; W. Freude; J. Leuthold; "
Cross-Gain
Modulation-based
2R
Regenerator
Using
Quantum-Dot
Semiconductor Optical Amplifiers at 160 Gbit/s ", Proc International
Conf. on Transparent Optical Networks - ICTON , Rome , Italy , Vol. 1 ,
pp. 106 - 109 , July , 2007 .

Cani, S.; M. J. Pontes; M. Segatto; M. T. Giraldi; C. A. Procópio; E. C.
Souza; A. P. Barbero; A. Cartaxo; " Experimental validation of a new
analytical model for gain of broadband Raman amplifiers ", Proc Conf. on
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 569 572 , May , 2007 .

Pereira, J. T.; " Frequency response analysis of InGaAs/InP photodiodes
", Proc Conf. on Telecommunications - ConfTele , Peniche , Portugal ,
Vol. 1 , pp. 287 - 290 , May , 2007 .

André, P.S; B. Neto; " Improvement of Raman Amplification Gain Tilt
Using Incoherent Pump Sources ", Proc OSA Frontiers in Optics , San
José , United States , September , 2007 .

Ferreira, ; P.S André; R.N. Nogueira; Vicente; Carlos; " Modeling and
Characterization of Waveguide Features in Self-Patternable Amine
Functionalized Organic-Inorganic Hybrids ", Proc International Microwave
and Optoelectronics Conference - IMOC , Salvador , Brazil , October ,
2007 .

Hajduczenia, M.; J. Santos; H. J. Silva; P. Monteiro; J. J. O. Pires; " On
triplexer design for next generation Ethernet Passive Optical Network
(EPON) systems ", Proc IEEE AccessNets - AccessNets , Ottawa, Ontario ,
Canada , Vol. Session 3: EPON and Ethernet Networks , August , 2007 .

Pina, J. F.; H. J. A. Silva; P. Monteiro; J. Wang; W. Freude; J. Leuthold; "
Performance Evaluation of Wavelength Conversion at 160 Gbit/s using
XGM
in
Quantum-Dot
Semiconductor
Optical
Amplifiers
in
MZI
162
configuration ", Proc International Conf. on Photonics in Switching - PS ,
San Francisco , United States , Vol. 1 , pp. 77 - 78 , August , 2007 .

Meleiro, R.; J. Castro; P.S André; P. Monteiro; " Performance study of a
Time Slot Interchanger based on a MZI-SOA in the switch configuration
", Proc International Conf. on Transparent Optical Networks - ICTON ,
Rome , Italy , Vol. 1 , pp. 252 - 255 , July , 2007 .

Muga, N. J.; A. N. Pinto; M. Ferreira; " Polarization Controller: Angles
Configuration
and
Scattering
Properties
",
Proc
Conf.
on
Telecommunications - ConfTele , Peniche , Portugal , Vol. IM.1 , pp. 243
- 246 , May , 2007 .

André, P.S; R.N. Nogueira; Ferreira; Vicente; Carlos; L. Pellegrino; P.
Monteiro; " Processing of Organic-Inorganic Hybrids for Integrated Optics
Filters ", Proc OSA Frontiers in Optics , San José , United States ,
September , 2007 .

Pereira, J. T.; " The effect of the direction of incident light on the
frequency
response
of
p-i-n
photodiodes
",
Proc
International
Symposium on Electromagnetic Fields in Mechatronics, Electrical and
Electronic Engineering - ISEF , Prague , Czech Republic , Vol. 1 , pp. 59 60 , September , 2007 .

Fernandes, C. F.; " Two DFB Laser Structures Suuitable for SLM
Operation ", Proc International Symposium on Electromagnetic Fields in
Mechatronics, Electrical and Electronic Engineering - ISEF , Prague ,
Czech Republic , Vol. 1 , pp. 92 - 92 , September , 2007 .
163
Optical Networking
Book Chapters

Hajduczenia, M.; A. Kasim; P. Adhikari; N. Chen; N. Finn; P. Havala; M.
Howard; K. Kompella; M. Lasserre; R. Metcalfe; " Ethernet over Passive
Optical Networks (PON) " - Chapter in Delivering Carrier Ethernet:
Extending Ethernet Beyond the LAN , Abdul Kasim , McGraw Hill , New
York , 2007.
Papers in Journals

Pires, J. J. O. ; J. M. Pedro; " Evaluating the Impact of Phsical
Impairments on the Blocking Performance of an All-optical WDM Ring
under Dynamic Traffic ", Journal of Optical Comm. , Vol. 28 , No. 1/2007
, pp. 66 - 72 , March , 2007 .

Hajduczenia, M.; H. J. A. Silva; D.F. Fonseca; P. Monteiro; " Fault
Discovery Protocol (FDP) for Passive Optical Networks (PONs) ", Journal
of Optical Networking , Vol. 6 , No. 6 , pp. 701 - 718 , June , 2007 .

Hajduczenia, M.; H. J. A. Silva; M.M. Freire Freire; P. Monteiro; " On
EPON security issues ", IEEE Communications Surveys & Tutorials ComST , Vol. 9 , No. 1 , pp. 68 - 83 , April , 2007 .

Farahmand, F. F. ; V. V. Vokkarane; J. J. Jue; J. Rodrigues; M.M. Freire
Freire; " Optical Burst Switching Network: A Multi-layered Approach ",
Journal of High Speed Networks , Vol. 16 , No. 2 , pp. 103 - 122 ,
February , 2007 .

Hajduczenia, M.; H. J. Silva; P. Monteiro; " Optimized Passive Optical
Network (PON) deployment ", Journal of Optical Networking , Vol. 6 , No.
9 , pp. 1079 - 1104 , August , 2007 .
164

Hajduczenia, M.; H. J. A. Silva; P. Monteiro; " Overflow Control
Mechanism (OCM) for Ethernet Passive Optical Networks (EPONs) ",
Journal of Optical Networking , Vol. 6 , No. 5 , pp. 490 - 513 , May ,
2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Bandwidth-Efficient Optical BurstSwitched Networks based on Traffic Engineering in the Wavelength Domain
and
Delayed
Burst
Scheduling
",
Proc
European
Conf.
on
Optical
Communications - ECOC , Berlin , Germany , Vol. 1 , pp. 95 - 96 , September
, 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Efficient Multi-Path Routing for
Optical Burst-Switched Networks ", Proc Conf. on Telecommunications ConfTele , Peniche , Portugal , May , 2007

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Efficient Optical Burst-Switched
Networks using only Fiber Delay Line Buffers for Contention Resolution ", Proc
IEEE BROADNETS , Raleigh , United States , Vol. Workshop on Optical
Burst/Packet Switching (WOBS) , September , 2007 .

Rodrigues, J.; M.M. Freire Freire; P. Monteiro; " Enhanced Just-in-Time: A
New Resource Reservation Protocol for Optical Burst Switching Networks ",
Proc IEEE International Symp. on Computers and Communications - ISCC ,
Aveiro , Portugal , Vol. CD-ROM , pp. CD-ROM - CD-ROM , July , 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Improving the Performance of
Optical Burst-Switched Networks with Limited-Range Wavelength Conversion
through Traffic Engineering in the Wavelength Domain ", Proc International
Conf. on Information Networking - ICOIN , Estoril , Portugal , January , 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Minimizing the Number of
Wavelength Converters in Optical Burst-Switched Networks ", Proc IEEE
165
International Conf. on Communications - ICC , Glasgow , United Kingdom ,
June , 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " On Fully Exploiting the Space
Domain
for
Contention
Resolution/Avoidance
in
Optical
Burst-Switched
Networks ", Proc International Conf. on Transparent Optical Networks - ICTON
, Rome , Italy , July , 2007 .

Hajduczenia, M.; H. J. Silva; P. Monteiro; " On optimized Passive Optical
Network (PON) Deployment ", Proc IEEE AccessNets - AccessNets , Ottawa,
Ontario , Canada , Vol. Session 5: Access Networks , August , 2007.

Pedro, J. M.; P. Monteiro; " Performance Modelling of Optical Burst-Switched
Networks with Recirculating Fibre Delay Line Buffers ", Proc Conf. on

Sousa, M.; M.M. Freire Freire; " Performance of Optical Burst Switched
Networks for Grid Applications ", Proc International Conference on Systems
and Networks Communications , Cap Esterel , France , Vol. 1 , pp. 1 - 6 ,
August , 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Reactive and Proactive Multi-Path
Routing Strategies for Optical Burst-Switched Networks ", Proc Symp. on
Enabling Optical Networks - SEON , Aveiro , Portugal , June , 2007 .

Pedro, J. M.; P. Monteiro; J. J. O. Pires; " Towards Efficient Optical BurstSwitched Networks without All-Optical Wavelength Converters ", Proc Conf. on
Optical Networks Design and Modelling - ONDM , Athens , Greece , May ,
2007.
166
4.2.7
Other Achievements
Patents

Methods for estimating self-similarity degree and related estimator"",
International patent filed at the European Patent Office, ref. EP 07008084.12413, 20-04-2007, Pedro Inácio, Marek Hajduczenia, Nuno M. Garcia, Paulo P.
Monteiro, Henrique Silva, Mário M. Freire.

Method to secure the upstream data transmission in an optical network";
International patent filed at the European Patent Office, ref. EP 07017666.41237, 10-09-2007, Marek Hajduczenia, Pedro Inacio, Paulo P. Monteiro, Rui
Morais.

Method for detection of malign intrusions in a communication system and
related detector", International patent number EP 07008085.8-2413, 20-042007, Pedro Inácio, Nuno M. Garcia, Marek Hajduczenia, Paulo P. Monteiro,
Henrique Silva, Mário M. Freire.
4.2.8
Other Contributions

Symposio Internacional en Comunicación del Conocimiento y Conferencias
- CCC, Technical Programme Committee, Rogério Nunes Nogueira, 01-012007
167
ANNUAL REPORT 2007 – NETWORKS & MULTIMEDIA
4.3 Networks and Multimedia
4.3.1
Coordinators
Mário Figueiredo
Rui Valadas
4.3.2
Human Resources
Overview
Degree
Aveiro Coimbra Lisboa
Full Professor
1
2
3
Associate Professor
1
1
5
Assistant Professor
6
15
19
Post. Doc.
0
0
3
0
3
0
Assistant Lecturer
0
6
0
PhD Student
5
14
30
MSc Student
6
3
3
Graduate
10
1
1
TOTAL
29
45
64
Table 23 – Overview of human resources in Networks and Multimedia Area
169
Name
Degree
Position
Group
Amílcar Sernadas
Agregação
Full Professor
SQIG
Aníbal Oliveira Duarte
Agregação
Full Professor
NMMC - Av
Luís Borges de Almeida
Agregação
Full Professor
NMMC
Luís Sá
Agregação
Full Professor
SIP - Co
Fernando Pereira
Agregação
Associate Professor
Image
Mário Figueiredo
Agregação
Associate Professor
CTPR
Mário Freire
Agregação
Associate Professor
NMMC - Co
Paulo Mateus
Agregação
Assistant Professor
SQIG
Rui Valadas
Agregação
Associate Professor
NMMC - Av
Abel João Gomes
PhD
Associate Professor
NMMC – Co
José Brázio
PhD
Associate Professor
NMMC – Lx
João Luís Sobrinho
PhD
Associate Professor
NMMC – Lx
Rui Rocha
PhD
Associate Professor
NMMC – Lx
Fernando Lopes
PhD
SIP - Co
Pedro Assunção
PhD
SIP - Co
Sérgio Faria
PhD
SIP - Co
Amaro Sousa
PhD
Assistant Professor
NMMC – Av
Ana Fred
PhD
Assistant Professor
CTPR
170
Name
Degree
Position
Group
Ana Gualdina Matos
PhD
Assistant Professor
SQIG
António Almeida
PhD
Assistant Professor
NMMC – Lx
António Ravara
PhD
Assistant Professor
SQIG
António Nogueira
PhD
Assistant Professor
NMMC – Av
Carlos Caleiro
PhD
Assistant Professor
SQIG
Celino José Martins Miguel
PhD
Assistant Professor
NMMC – Co
Edgar Pereira
PhD
Assistant Professor
NMMC – Co
Fernando Manuel Martins
PhD
Assistant Professor
NMMC - Co
Fernando Perdigão
PhD
Assistant Professor
SIP- Co
Francisco Fontes
PhD
Assistant Professor
NMMC – Av
Frutuoso da Silva
PhD
Assistant Professor
NMMC – Co
Hugo Pedro Proença
PhD
Assistant Professor
NMMC – Co
Jaime Arsénio Brito Ramos
PhD
Assistant Professor
SQIG
Jan Gunnar Cederquist
PhD
Assistant Professor
SQIG
João Rasga
PhD
Assistant Professor
SQIG
João Barros
PhD
Assistant Professor
NMMC – Lx
Joel José Puga C. Rodrigues
PhD
Assistant Professor
NMMC – Co
Luís A. Alexandre
PhD
Assistant Professor
NMMC – Co
Luís Cruz
PhD
Assistant Professor
SIP - Co
171
Name
Degree
Position
Group
Luís Ducla Soares
PhD
Assistant Professor
Image
Maria Manuela C. Pereira de Sousa
PhD
Assistant Professor
NMMC – Co
Maria Paula Prata de Sousa
PhD
Assistant Professor
NMMC – Co
Maria Paula Queluz
PhD
Assistant Professor
Image
Miguel Raul Dias Rodrigues
PhD
Assistant Professor
NMMC – Lx
Miguel Tavares Coimbra
PhD
Assistant Professor
NMMC - Lx
Paul Andrew Crocker
PhD
Assistant Professor
NMMC – Co
Paulo Correia
PhD
Assistant Professor
Image
Paulo Nunes
PhD
Assistant Professor
Image
Paulo Salvador Ferreira
PhD
Assistant Professor
SIP – Co
Pedro Araújo
PhD
Assistant Professor
NMMC – Co
Pedro Miguel Adão
PhD
Assistant Professor
SQIG
Susana Sargento
PhD
Assistant Professor
NMMC – Av
Rui Prior
PhD
Assistant Professor
NMMC - Lx
Victor Silva
PhD
Assistant Professor
SIP - Co
Cláudio Alberto Hermida
PhD
Pos-Doc
SQIG
Lau Phooi Yee
PhD
Pos-Doc
Image
Nikola Paunkovic
PhD
Pos-Doc
SQIG
Graduate
Researcher
NMMC - Av
Vasco Lagarto
Table 24 – Permanent Collaborators working in the Networks and Multimedia Area
172
Other Collaborators
Name
Degree
Position
Group
Walter Alexandre Carnielli
PhD
Full Professor
SQIG
André Zuquete
PhD
Assistant Professor
NMMC - Av
Yasser Omar
PhD
Assistant Professor
SQIG
Carla Calado Lopes
MSc
Assistant Lecturer
SIP – Co
Marco Gomes
MSc
Assistant Lecturer
SIP - Co
Paulo Paiva Monteiro
MSc
Assistant Lecturer
SIP - Co
Pedro Daniel Correia
MSc
Assistant Lecturer
SIP – Co
Gonçalo Vinhas Leitão
Graduate
Assistant Professor
NMMC – Co
João Paulo Cordeiro
Graduate
Assistant Lecturer
NMMC – Co
João Carlos Silvestre
Graduate
Assistant Lecturer
SIP- Co
André Lourenço
MSc
PhD Student
CTPR
António Carlos Oliveira Júnior
MSc
PhD Student
NMMC – Lx
Artur Ferreira
MSc
PhD Student
CTPR
Catarina Brites
MSc
PhD Student
Image
Carlos Jorge Santiago
MSc
PhD Student
NMMC – Av
David Coutinho Gomes Antão
MSc
PhD Student
CTPR
Diogo Gomes
MSc
PhD Student
NMMC – Av
173
Name
Degree
Position
Group
Gabriel Falcão Fernandes
MSc
PhD Student
NMMC – Co
Gerhard Maierbacher
MSc
PhD Student
NMMC – Lx
Henrique José Monteiro Oliveira
MSc
PhD Student
Image
João Ascenso
MSc
PhD Student
Image
Karina Roggia
MSc
PhD Student
SQIG
Luísa Mariana Araújo Lima
MSc
PhD Student
NMMC – Lx
Manuel Mota Ferreira
MSc
PhD Student
NMMC - Lx
Nuno Rodrigues
MSc
PhD Student
SIP – Co
Pawel Andruszkiewicz
MSc
PhD Student
NMMC – Co
Tomás Brandão
MSc
PhD Student
NMMC – Lx
Adriano Nunes Raposo
Graduate
PhD Student
NMMC – Co
Alfredo Miguel Matos
Graduate
PhD Student
NMMC – Av
Filipe Cruz Gomes Soares
Graduate
PhD Student
NMMC – Co
João Vasco Paulo Gomes
Graduate
PhD Student
NMMC - Co
Eduardo Marta
Graduate
PhD Student
SIP - Co
Emanuel Martins
Graduate
PhD Student
SIP - Co
Fahram Riaz
Graduate
PhD Student
NMMC – Lx
Hugo Gambôa
Graduate
PhD Student
CTPR
João Barraca
Graduate
PhD Student
NMMC - Av
174
Name
Degree
Position
Group
João Paulo Vilela
Graduate
PhD Student
NMMC - Lx
João Pedro Oliveira
Graduate
PhD Student
CTPR
Luís David Moreira Pedrosa
Graduate
PhD Student
NMMC - Lx
Mariana Almeida
Graduate
PhD Student
CTRP
Maxime Gamboni
Graduate
PhD Student
SQIG
Miguel Pereira dos Santos Silva
Graduate
PhD Student
NMMC - Lx
Nuno Manuel Garcia Santos
Graduate
PhD Student
NMMC - Co
Paulo Alexandre Silva Neves
Graduate
PhD Student
NMMC - Co
Paulo Pais Fazendeiro
Graduate
PhD Student
NMMC – Co
Paulo Vasco Oliveira
Graduate
PhD Student
NMMC – Av
Pedro Baltazar
Graduate
PhD Student
SQIG
Pedro José Ribeiro
Graduate
PhD Student
SQIG
Pedro Miguel Brandão
Graduate
PhD Student
NMMC – Lx
Pedro Ricardo Morais Inácio
Graduate
PhD Student
NMMC - Co
Ricardo João Gonçalves
Graduate
PhD Student
SQIG
Rui Costa Cardoso
Graduate
PhD Student
NMMC – Co
Rui Filipe Mendes Alves Costa
Graduate
PhD Student
NMMC – Lx
Sandra Jardim
Graduate
PhD Student
CTPR
Sérgio Crisóstomo
Graduate
PhD Student
NMMC – Lx
175
Name
Degree
Position
Group
Sérgio Marcelino
Graduate
PhD Student
SQIG
Sónia Pelizzari
Graduate
PhD Student
CTPR
Vasco Nuno Gama Soares
Graduate
PhD Student
NMMC - Co
Vitor Marques
Graduate
PhD Student
NMMC – Av
Duarte Palma
Graduate
MSc Student
Image
Fernando Bastos
Graduate
MSc Student
NMMC – Av
Fábio Hedayioglu
Graduate
MSc Student
NMMC – Lx
Hugo Silva
Graduate
MSc Student
CTPR
Jorge Gonçalves
Graduate
MSc Student
NMMC – Av
Lino Miguel Ferreira
Graduate
MSc Student
SIP - Co
Nuno Silva
Graduate
MSc Student
NMMC – Av
Pedro Alexandre Gonçalves
Graduate
MSc Student
NMMC - Av
Pedro Naia Neves
Graduate
MSc Student
NMMC - Av
Rui Pires Fernandes
Graduate
MSc Student
SIP - Co
Sandro Moiron
Graduate
MSc Student
SIP - Co
Álvaro Henriques Gomes
Graduate
Researcher
RMOM – AV
Cláudio Ribeiro Neves
Graduate
Researcher
SIP - Co
Diogo Resende Rainho
Graduate
Graduate
NMMC – Av
Filipe Cabral Pinto
Graduate
Researcher
NMMC – Av
176
Name
Degree
Position
Group
Henrique Teixeira de Sousa
Graduate
Researcher
NMMC – Av
João Ferreira da Silva
Graduate
Researcher
NMMC – Av
Luís Miguel Silva
Graduate
Researcher
NMMC – Av
Pedro Capão
Graduate
Researcher
RMOM - Av
Ricardo Guerra Pereira
Graduate
Researcher
NMMC - Av
Ricardo Jorge Alves Cordeiro
Graduate
Researcher
NMMC - Av
Rui Policarpo Duarte
Graduate
Researcher
NMMC - Lx
Vitor Simões Ribeiro
Graduate
Researcher
NMMC - Av
Table 25 – Non-permanent Collaborators working in the Neteworks and Multimedia Area
177
4.3.3
The work in the area of Networks and Multimedia is organized in several topics:
-
Architectures and protocols;
-
Security and quantum information;
-
Traffic engineering;
-
Network operations, management, and planning;
-
Network applications and services
-
Processing, analysis and coding of audio and visual information;
-
Pattern recognition and automatic learning;
In the following, we briefly summarize the main achievements in each of these
topics.
Architectures And Protocols
Modern mathematical foundations of computer networks
Following our work on the development of an algebra to describe Internet routing
(both intra and inter domain), we concentrated this year in the preparation and
lecturing of an innovative and advanced course on the modern mathematical
foundations of computer networks. The syllabus of the course includes network
connectivity; network optimization; network routing; network calculus; and
network coding. In preparing lecture notes for the course, synergies among those
topics were uncovered and new research topics were delineated.
Transport architectures for satellite networks
We
have
studied
congestion
control
algorithms
and
architectures
for
the
acceleration of HTTP in inter-operable satellite network Performance Enhancing
Proxies, in the context of a research contract with the European Space Agency. The
work performed consisted of the setup of a simulation environment for the
evaluation of the performance of the congestion control algorithm developed in the
project and an extensive simulation study of its performance in a variety of
environments and parameter settings. We have also developed a test plan and
laboratory setup for the subsequent evaluation of the performance of a prototype
178
implementation in a real or emulated environment. Moreover, work has been done
towards
the
performance
evaluation
of
equation-based
congestion
control
algorithms and of architectural solutions involving exchange of cross-layer
parameters.
Advanced IP based network laboratory
In this activity, we have implemented a state-of-the-art network laboratory
infrastructure where research on IP based network architectures and protocols can
be evaluated and validated. This lab infrastructure is composed by a core network
(supporting MPLS, IntServ, DiffServ, Multicast, IPv6, …), an Ethernet Metro
network, a wireless WiFi and WiMax network together with the required service
components to run VoIP, IP video-conference and IP video streaming (and/or
multicasting). In 2007, the infrastructure has been acquired and put in operation.
The service components are fully operational: (1) VoIP has extended the internal
telephone infrastructure of IT-Aveiro; (2) IP video-conference is available between
all three IT sites through Internet and (3) some events (workshops, PhD public
examinations, seminars, etc) have been captured and made available through high
quality IP streaming. The network components are supporting research activities in
the fields: traffic engineering on metro Ethernet, routing with QoS support, and
WiMax support of heterogeneous communications.
Heterogeneous networking issues
Research has been performed in heterogeneous networks, focused on the evolution
towards fixed and mobile, convergent, next generation architectures. This work
covered areas of: QoS support across different technologies and networks
(infrastructure and ad-hoc) and over different administrative domains; ad-hoc and
moving network environments integrated in the common architecture; mixed
mobility types with QoS integration and mobility management in multi-access
environments, using IEEE 802.21 to support media independent handovers, and
mechanisms for intelligent handover decisions commonly performed by the user
and network (specific technologies supported: Ethernet, 802.11, 802.16 and DVB);
multicast communications with QoS and mobility; mobility of both mobility of the
listeners and of the sources in multicast environments, where the movement of
sources
is
made
transparent
to
the
receivers;
real-time
bidirectional
communications in unidirectional technologies (DVB), making use of a different
179
technology return channel, covering aspects of QoS and mobility; IP-oriented
resource management; grids in mobile environments; QoS support for WLANs and
WMANs (IEEE 802.16); wireless sensor networks; and privacy support using virtual
identities and identity based mobility. The specification studies have been done and
evaluation and implementation has started. Also, a prototype is being built and
integration
work
of
the
developed
modules
is
being
addressed.
A
large
demonstrator with scenarios of pervasiveness, multiple technology and networks
handovers and inter-domain concepts is being setup. During this period, we have
also prototyped several Resource Management Entities with different characteristics
and goals. Recently, we have worked on a Resource and Admission Control SubSystem (RACS) prototype with a generic architecture, based on the results of the
previous project, to answer to next generation networks requirements. This
developments are inline with standards, mainly with ETSI/TISPAN and are
enhanced with IP mobility support. The developed Resource and Admission Control
entity, can be spread over the network, providing a decentralized architecture in
order to be scalable and provide better performance. IMS signaling is supported for
session initialization. Resource Admission Control entities have two main roles, i)
admission control for new flows and ii) network elements configuration (policy
enforcement). Network policies for a particular sessions is, at the moment, enforced
in WIMAX and ADSL components. The admission control process is feed with
network measurements. In this way we developed a active measurement platform
for IP networks, addressing layer 3 and 4. To configure and retrieve information
from the entity, a web-based application was developed and state of the art
protocol was used to that interaction. In this same scope, the QoS-aware version of
two applications (telemedicine and e-learning) has been used to demonstrate and
validate the concept of application-driven end-to-end QoS. The application-centric
approach proposed offers applications the capability to request and control the
network resources it needs on a dynamic basis and provides a promising solution to
enable the widespread use of QoS-sensitive applications (e.g. telemedicine) over
public IP network infrastructures.
Multimedia communication architectures and protocols
Recently, we have worked on an enhanced end-to-end MBMS system level
simulator (3GPP R6 MBMS Reference Model), with focus on Macro Diversity
Combining, using OPNET. The Selective Combining and Maximum Ratio Combining
180
were the methods used for improving the MBMS radio interface. It was developed
an integrated IMS-MBMS layered framework, which is inline with the existing
standards frameworks and architectures and offers a complete end-to-end design
allowing interactive mobile TV services and Web 2.0 content to be distributed in an
efficient way within mobile communities. The BM-SC (Broadcast Multicast Service
Centre) functionalities were spread over an enhanced IMS architecture in order to
support multicast bearers. Based on the evolved system, a complete signaling was
developed allowing IMS users to distribute multimedia content to groups of users
over unicast, multicast and broadcast bearers. To manage the data generated by
the several sources, enterprises and end-users, it was defined a Content
Information Inventory (content and file detail and useful data) and a Metadata
Protocol Schema Definition (XML Schema) used to organize content information. It
was also defined the most suitable protocol to transfer data from the content
provider to the operator, or service provider, and the most appropriate content
format for upload and streaming.
Home networks and residential gateways
The specification, implementation and demonstration of a solution for e-Care
services based on the results of the previous project IST@Home proves the concept
of this tele-care innovative solution. It includes different pieces needed for this
complete
pack
of
services
(e.g.
emergency/panic
alarm,
video-telephony,
remembers, medical vital signs measurements): e-Care Service Centre with SQL
database and several operator’s positions, OSGi Service Centre enabling the lifecycle full control of each service available in each client, OSGi enabled Home
Gateway with QoS for the LAN and WAN sides, and IP terminals connected through
several different broadband LAN technologies. Additional requirements/features
have been added to this OSGi enabled Home Gateway due to our participation in
MUSE project, namely an EAP authentication process using IEEE 802.1X standard.
Some indicators about the value chain of the new home and SOHO services have
been obtained in OSIAN project, allowing one more clear picture of the possible
Telco revenues. Integrated on last year projects of LEET degree some research and
developments have been made on no-intrusive tele-surveillance associated also to
movement detectors. Several alternatives to the UTPcat5e structured network were
tested (e.g. PLC, Wi-Fi, HPNA), namely the newest 200Mbps DS2 PLC solution with
the direct support from the manufacture, allowing a deep knowledge of this
181
technology. These results were integrated and presented in a PT Inovação internal
project, enabling the collaboration in the initial specification for the PTCom
commercial Triple-Play deployment.
Wireless ad-hoc and mesh networks
Mobility between ad-hoc and infrastructure networks, through the help of 802.21
Media Independent Handovers, is also being addressed, and a demonstrator is
being built to demonstrate its feasibility. Work has been done on Wireless mesh
networks on the community-oriented architecture, from the physical layer to the
application layer, in which the self-organization mechanisms apply in a general way
to the communities’ concept. In this sense, the communication between several
nodes requires a cross-layer interaction and agreements between different types of
communities. Management concepts applicable to such an environment are being
developed.Optimizations to mobility on wireless mesh networks were also proposed
and evaluated in ns-2.
Wireless access networks
The IEEE 802.16 standard represents the state-of-the-art in technology for
metropolitan area broadband wireless access networks. The point-to-multipoint
(PMP) mode of IEEE 802.16 has been designed to enable quality of service (QoS) in
operator-controlled networks and, thus, is foreseen to complement existing third
generation cellular networks. In contrast, the optional mesh mode of operation in
IEEE 802.16 enables the setup of self-organizing wireless multi-hop mesh
networks. A distinguishing characteristic of the IEEE 802.16 standard is its support
for QoS at the MAC layer. However, the QoS specifications and mechanisms for the
PMP and the mesh mode are not consistent. Research has been performed to
integrate a novel QoS architecture in order to enhance the IEEE 802.16 mesh mode
of operation. In particular, we have evaluated scheduling algorithms and admission
control
mechanisms,
and
the
tradeoffs
involved
when
implementing
such
mechanisms in 802.16 mesh mode, focusing on the efficient management of the
available bandwidth resources. In order to evaluate and validate the performance of
the developed mechanisms, a simulation study is being developed, based on the
NS2 and NCTUS simulation tools.
182
Wireless LANs
We studied a modification of the current DCF CSMA/CA protocol used in IEEE
802.11 wireless networks to improve the medium occupancy by promoting
bidirectional data exchanges upon a single RTS/CTS handshake. This fact reduces
the number of RTS/CTS handshakes required when two STAs have simultaneously
data to send to each other. Consequently, reduces the number of RTS collisions and
the time the medium stays idle when STAs wait before starting an RTS race for
reserving the medium. Unlike other similar approaches, the NAV information kept
by STAs in the neighbourhood of the STAs performing a bidirectional data exchange
is maintained accurate by means of the usual RTS, CTS and ACK management
frames. Fairness in the medium reservation by STAs is kept because all STAs use
the same CW and backoff policy. However, bidirectional data exchanges may
overrule FIFO transmission policies in STAs output queues, because frames in the
middle of queues may be transmitted when there is a suitable medium reservation
opportunity. Consequently, some frames in output queues may be delayed and
overpassed by others. To overcome excessive frame delaying, STAs may become
more aggressive towards the medium reservation when frames at the head of
queues are over delayed. A simple counter per frame is enough for detecting
excessive delays, and medium reservation aggressiveness can be implemented with
dynamic, temporary CW reductions.
Mathematical foundations of sensor networks
We showed that currently available distributed coding schemes for sensor networks
are not scalable in the sense that their complexity grows exponentially in the
number of sensor nodes. We proceeded to provide novel large-scale solutions based
on scalar quantizers with optimized index assignments and belief propagation
techniques. Part of this work exploited connections between coding theory and
number theory. We formulated the problem of data gathering in sensor networks
with mobile nodes as one of random walks over random geometric graphs and
computed new bounds for the coverage time. We collaborated in the development
of a novel calculus for sensor networks, based upon which one can develop a new
programming language for this class of distributed systems. Motivated by a sensing
applications, in which we may not be interested in acquiring all the data picked up
by a group of sensors but only a function thereof (e.g. the average or the
183
maximum), we attacked the problem of computing functions from sensor data
transmitted over noisy channel. Our main contribution is a set of optimal message
passing algorithms for efficient inference in several relevant instances of this
problem.
Fundamental Limits of Dual Radio Networks
Using tools from random graph theory, we computed bounds on the connectivity
and capacity of networks in which some of the nodes are equipped with two
different wireless interfaces.
Security andquantum information
Commitment Capacity of Gaussian Channels
In secure multi-party computation problems, two or more users hold different
pieces of data and wish to collaborate in computing a function of all the data
without disclosing the information they hold. When constructing protocols for this
problem, one is often confronted with the need for a partner to commit to a certain
value without revealing that value to the other partners. We provided a new
scheme for establishing this type of commitment over discrete memoryless
channels and showed that the aforementioned scheme can also be used in Gaussian
channels, whose commitment capacity (i.e. the maximum rate at which we can
commit to string of values) was shown to be infinite by earlier work of ours.
Physical-Layer Security: Theory and Practice
We broke the ground for information-theoretic security over wireless channels by
showing, to the best of our knowledge for the first time, that the physical properties
of the wireless fading channels can be exploited both in theory and in practice for
secure communication through coding, even when the eavesdropper has a better
average signal-to-noise than the legitimate partners. This fundamental insight has
contributed to a considerable surge in research efforts on physical-layer security
around the world.
Reputation-based Security for Ad-hoc Networks
We developed the first reputation based security scheme for the Optimized Link
State Routing protocol, one of the four routing protocols that were standardized for
mobile ad-hoc networks.
184
Network Coding Security
We showed that random linear network coding, in which intermediate nodes in a
network are allowed to mix different information flows by means of algebraic
operations, offers an intrinsic level of security and provided evidence for the
interplay between network coding security and network topology.
Network Coding Protocols for Secret Key Distribution
We developed secret key distribution protocols that exploit the presence of a mobile
node and the benefits of network coding to achieve higher efficiency and robustness
against common attacks in sensor networks.
Security in 802.11 LANs
We studied a new approach for achieving fast, 802.1X-like authentications during
802.11 handover reassociations. Our approach was to recover the original 802.11
paradigm, using authentications prior to reassociations. This way, we can remove
reauthentication delays from handover outage delays, since reauthentications can
be executed before reassociations. Furthermore, we are able to authenticate
authentication requests and reassociation requests/responses, which is useful
against DoS attacks. The proposed architecture uses a key hierarchy starting in
EMSK and a Reauthentication Service for dealing with reauthentications of STAs.
This new service can be implemented by an Authentication Service or by an HOKEY
server. Finally, we do not require special configuration facilities from network
equipments, no topological information regarding the actual deployment of APs and
no homogeneity among facilities provided by APs (e.g. heterogeneous cipher suits).
Detection of Zombie PCs
Today, one of the most important threats to personal and corporate Internet
security is the proliferation of Zombie PCs operating as an organized network. The
detection of zombie PCs is currently performed at the network and PC levels but
any one of these options presents important security flaws: at the PC level,
antivirus, anti-spyware and personal firewalls are ineffective in the detection of
Zombie PCs that are compromised via new or target-specific malicious software
while, at the network level, network firewalls and Intrusion Detection Systems were
developed to protect the network from external attacks but they were not designed
to detect and protect against vulnerabilities that are already present inside the local
185
area network. We have developed a new approach for the identification of zombie
PCs that tries to overcome some of the limitations of existing approaches, while
being computationally efficient and easy to deploy. The approach is based on neural
networks and is able to detect Zombie PCs based on the historical traffic profile
presented by each legitimate and illegitimate network application.
Process calculi for specifying security protocols
A thoroughly study of the behavioral theory of epi, a pi-calculus extended with
polyadic synchronization was made. As an example of the calculus' expressive
power, (symmetrical) cryptographic primitives were defined, and it was shown that
these primitives are derivable constructs, ie, epi with cryptographic primitives may
be fully abstractly encoded in the original language. The proposed encoding is
sound and complete with respect to barbed congruence. Therefore, cryptographic
epi gets behavioural theory for free. The calculus is illustrated by specifying several
security protocols. .
Verification of security protocols with quantum information
A complete tableaux calculus was proposed for Distributed Temporal Logic.
Completeness and complexity results were obtained for temporal extensions of
exogenous quantum and probabilistic propositional logic. The SAT problem for
exogenous probabilistic logic was shown to be in PSPACE and the SAT problem for
its temporal extension to be EXPTIME complete. These logics have been used
successfully for specifying and verifying security protocols with (and also without)
quantum information, such as quantum one-time pad and BB84. An algorithm was
proposed for deciding the correctness of bounded space and time imperative
programs, using linear algebra techniques encoded in the theory of real closed
fields. The approach is shown to be feasible for classical, probabilisitic and quantum
programs, namely cryptographic ones. .
Cryptoanalysis of privacy enhancement tools
Tamper-proof hardware was used to perform several offline privacy attacks, namely
to undeniable and ring signatures. More precisely, the notion of deniable
authentication, which should come from zero-knowledge, was defeated and proofs
of possession for secret keys were denied. The attacks were formalized in the so
called universal trusted agent model. This model defines an oracle relative to which
186
classical zero-knowledge is not deniable any longer. It is shown how a ring
member, who did not produce a given valid ring signature, could deny it and thus
break anonymity. Key registration models we also investigated and it was shown
that registering to a trusted authority without escrowing some sensitive information
cannot help to restore some cryptographic properties which are needed for privacy.
Quantum information
The interplay between the particle indistinguishability and entanglement-based
spatial and spin-like quantum correlations was explored on the case of a simple
bipartite
system
and
its
applications
in
quantum
information
protocols
(entanglement swapping and optimal state discrimination) were studied. The
information-based approach to quantum phase transitions was further extended to
the cases of BCS superconductivity and Stoner-Hubbard models. The extensions to
the cases of general (thermal) phase transitions were also understood..
Design of new security protocols
A fair contract signing protocol was propose using quantum tamper-proof devices.
In the proposed protocol the signing agents do not need to communicate with a
third trusted party during the signing phase, which has been proved to be
impossible using only classical information in asynchronous networks. The protocol
relies on decoherence of quantum information to encode a global clock that works
as a synchronization mechanism. The protocol is can be implemented with existing
quantum technology.
Traffic Engineering
Network modeling for performance prediction
Nowadays, wired and wireless network traffic exhibits peculiar and unpredictable
behaviors that can be attributed to the combination of different factors: the varying
number of users, the capacity of the network access links/points, network traffic
matrices, users' mobility, background traffic, diversity of applications, services and
user behaviors. This scenario creates an increasing need for tools that can cope
with the continuous appearance of new applications and QoS requirements and is
able to aid in the global management tasks of IP networks. We have developed a
general approach to model wired and wireless packet switching networks that is
based only on traffic measurements (or traffic generated by simulation) and does
187
not require any information on the network structure, traffic routing or users'
mobility. The network model is built from a set of (past) measurements of the
inbound/outbound traffic at each access link or access point (in the wireless
context) and of the corresponding Quality of Service (QoS); the model can then be
used to predict the (future) QoS based only on the inbound/outbound traffic. There
are no restrictions to the type of metrics that characterize the QoS. The general
approach/model was then adapted to some particular network types: wireless
networks, mobile ad-hoc networks, wired local area networks and access networks.
Each developed modelling framework was able to achieve excellent performance in
terms of predicting QoS at multiple gateways, wireless access points or access
links, even when there were significant changes in the number of network users.
Detection of Internet applications
We have developed a software framework for processing IP traffic flows, enabling
the calculation of a set of relevant statistical parameters and the identification of
the underlying IP applications by using payload analysis techniques. The proposed
framework was able to achieve good identification results and was incorporated in
DTMS-P2P monitoring platform as a module that can be used at each probe for
traffic engineering purposes. We have developed a new approach, based on neural
networks, that is able to identify flow patterns generated by P2P Internet
applications while overcoming the limitations of existing identification approaches.
The results obtained show that, when conveniently trained, neural networks
constitute a valuable tool to identify P2P Internet applications since they are able to
achieve good performance results while, at the same time, avoid the most
important disadvantages presented by the other identification methods.
Congestion control in packet networks
Implementation of end-to-end congestion control schemes for the Internet,
alternative to current TCP procedures. In particular, testing of mechanisms for TCP
sources envisaging high-speed networks with significant delays. Also, focus on
procedures for TCP sources, envisaging heterogeneous networks (i.e. networks with
wired and wireless links). Implementation and testing of router-assisted congestion
control mechanisms for TCP (i.e. modified TCP sources with explicit congestion
signaling triggered by the active participation of routers).
188
Capacity and cross-traffic estimations
Work has been started on the evaluation of estimation of the link capacity and its
available bandwidth in wireless networks. The work done in this area aims at an
estimation methodology able to measure the capacity and the cross-traffic of
wireless links, with plans to extend them to mesh networks.
Design and traffic engineering of MPLS and MPLS over WDM networks
Multiple service network design is being addressed taking particular attention to
both single layer design (MPLS networks) and multi-layer design (MPLS over WDM
networks). On the single layer case, the PhD workplan of Carlos Borges Lopes was
concluded in 2007. On the MPLS over WDM network case, network design problems
were addressed which are a combined WDM lightpath routing, core LSR placement
and LSP routing aiming to determine the least cost network solution. In particular,
a cost penalty characterization for different degrees of survivability on the network
was conducted based on modelling techniques developed in previous years. A paper
will be published on March of 2008 in the “Networks and Spatial Economics”
journal. On the MPLS over WDM case, the traffic engineering problem is also being
addressed aiming to minimize the routing hop-count while guaranteeing network
survivability based on multiple disjoint paths. A paper will be published on 2008 in
the form of a book Chapter with a selected set of papers to be presented on the
2008 INFORMS Telecommunications Conference. These activities have been done in
collaboration with Prof. Luis Gouveia (Departamento de Estatística e Investigação
Operacional, Faculdade de Ciências, Universidade de Lisboa).
Traffic engineering of Metro Ethernet networks
In this activity, we address the problem of how to use the IEEE 802.1S Multiple
Spanning Tree Protocol (MSTP) to improve load balance, service disruption and
survivability
of
Metro
Ethernet
networks.
We
have
developed
a
heuristic
optimization algorithm to optimize load balance and minimize service disruption
which was published on an international workshop. We have also started two lines
of research. In the first line of research, a pos-doc workplan was started to define
optimization models and to develop suitable solving techniques able to obtain
optimal solutions for the traffic engineering problems. This activity is being
conducted in collaboration with Prof. Filipe Alvélos (Departamento de Produção e
Sistemas, Escola de Engenharia, Universidade do Minho). In the second line of
189
research, we have started the development of a traffic engineering server able to
read and configure the switches in a remote manner based on SNMP. The aim of
this server is to set up a lab infrastructure (using the Advanced IP based Network
Laboratory) where the optimization algorithms can be tested and evaluated.
Optical burst switched networks
Work continued on the study of the influence of several parameters in the
performance
of
optical
burst
switched
networks.
We
also
continued
the
development of a simulation tool to support our studies. Regarding OBS simulation
tools, we studied and compared the four most relevant simulators used in scientific
and academic research to model OBS networks (Network Simulator 2 (ns-2), OBSns Simulator, NCTUns, and OBSsimulator).
Wireless Sensor Networks
This year we start a preparatory research work on wireless sensor networks
(WSNs), mainly, with the state-of-the-art related with medical applications and
biofeedback. In order to find a good simulation tool to support our studies, we
compare three available tools for WSNs: Network Simulator 2 (ns-2), Java
Simulator (J-Sim) and Sensor Network Emulator and Simulator (SENSE). After
study each simulator in terms of its features, a view on current applications of
WSNs on medicine and a comparison of the simulators, we conclude that SENSE
presents the better approach for WSNs.
Network Operations, Management and Planning
Network measurement platforms
We continued the development of the DTMS-P2P (Distributed Traffic Measurement
System with a Peer-to-Peer Architecture) platform, adding new functionalities and
modules (like the traffic identification module). The DTMS-P2P system creates an
overlay network to allow the configuration of test sessions at remote locations and
the replication and retrieval of the obtained results. The system can be used to
perform both active and passive measurements and the adoption of a P2P
architecture allows high tolerance to failures and distributed storage of measured
data, being also advantageous for traffic monitoring in wide area network
environments. Work has also been performed in the development of network
190
probes to measure voice trunking service quality in an IP network. For that
purpose, MGCP and RTP/RTCP packets are captured in real time and results and
correlated. The work required the detailed study of the referred protocols and also a
careful software implementation, complemented by kernel optimization in order to
achieved the required performance levels. Measurements include packet loss,
delay, jitter and voip sessions characterization (start/end time, packets transferred,
etc). In addition MOS is measured and session can be saved.
Network Applications and Services
Application Servers for Next Generations Networks (NGN)
Study of Service Delivery Platforms (SDP) on NGN environments, in particular, for
SIP and IMS networks. The JLSEE “mobicents” Application Server was used as a
SIP/IMS Application Server, hosting the next generation applications. A prototype
of a subscriber and administrator portals was implemented, for the purpose of
configuring services running on the SIP/IMS Application Server.
Service Orchestration and Messaging in Service Oriented Architectures
Using the latest orchestration and composition techniques (BPEL4WS) a prototype
has been built, addressing Service Provisioning on ADSL networks. In particular,
the experimentations used the JBoss J2EE container with the jBPM tool, as well as
the Oracle BPEL Process Manager tool. Service Activation EJBs (Enterprise Java
Beans) have been exposed has Web Services, in accordance to the J2EE 1.4
standard. The latest messaging technology (JMS – Java Message Service) has been
studied and tested, serving as a software backbone to plug-in services/components
in a loosely coupled manner. The TMForum SID model was used as the information
model on the JMS bus, and a set of adapters have been built to connect the
different systems to the JMS bus.
Processing, Analysis and Coding of Audio and Visual Information
Distributed video coding
In 2007, the Image Group continued to have distributed video coding as its main
activity in the video coding area. Emphasis has been put on Wyner-Ziv coding, a
particular case of distributed video coding. Among the issues addressed are: 1.
Definition of efficient encoder rate control solutions for transform domain Wyner-Ziv
191
video coding; 2. Exploitation of adaptive hash-based side information for efficient
Wyner-Ziv video coding; 3. Definition of efficient request stopping methods at the
turbo decoder for Wyner-Ziv video coding; 4. Stereo video coding using a side
information fusion approach; 5. Study of the GOP size impact on the performance
of a feedback channel-based Wyner-Ziv video codec; 6. Study of the error
resilience performance for a feedback channel based transform domain Wyner-Ziv
video codec. Following these contributions, which were published at major
conferences and journals, the Image Group maintained its top rank place within
research groups working on distributed video coding.
Rate contro
In 2007, we have continued to address the problem of rate control both for objectbased and frame-based coding architectures. In 2007, the main issues addressed
were: 1. Definition of a rate control architecture for joint object-based MPEG-4
video encoding; 2. Joint bit-allocation strategies for multi-sequence H.264/AVC
video coding rate control; 3. Improved feedback compensation mechanisms for
multiple video object encoding rate control
Generic audiovisual content automatic summarization
In this topic, we have proposed and evaluates a fully automatic summarization
application for generic audiovisual based on MPEG-7 compliant hierarchical
summary descriptions, which allows providing flexibility, low complexity, and
interoperability. The novelty of the solution regarded the exploitation of a three
features, low-level arousal model to generate the summary metadata needed to
instantiate MPEG-7 compliant summary descriptions with all the advantages this
brings. Moreover, a novel, solid evaluation study has been performed.
Quality evaluation
During 2007, research as been focused on no-reference metrics for quality
evaluation of still images and video sequences, subject to lossy encoding (e.g.,
JPEG, MPEG-2 and H.264).
A new quality metric, based on DCT coefficients
statistics, has been developed and shown to provide better quality estimates than
previous state-of-the art algorithms. Our main results for still images have been
reported in a paper accepted for publication in the ''Signal Processing'' journal (to
appear in April 2008); the extension of the method to video sequences is still
undergoing work.
192
Object-based video coding
In 2007 the research activity in this topic lead to the proposal of an improved rate
control architecture for jointly encoding multiple video objects in compliance with
various MPEG-4 Visual video profiles. Still in this area, innovative contributions
have been made on new buffer and video object distortion feedback compensation
mechanisms for efficiently dealing with deviations between the ideal and the actual
behavior of video scene encoders when jointly encoding multiple arbitrarily shaped
video objects in the context of compliant low-delay object-based MPEG-4 video
coding. The proposed solution outperforms the non-normative MPEG-4 reference
rate control algorithm for a wide range of bit rates and spatio-temporal resolutions,
for typical test sequences. Additionally, in 2007, the problem of jointly encoding
multiple video sequences (MVSs) with the H.264/AVC video coding standard has
been addressed. Jointly controlling the encoding of multiple video sequences (VSs)
allows the dynamical allocation of the overall available resources (e.g., bit rate and
buffer space) along time and between the various VSs to encode; this brings a
better rate-distortion (RD) trade-off, notably, when compared with single VS
encoding with a rigid allocation of resources. The major achievement of this activity
has been a new method for joint bit allocating taking into the account the frame
coding complexity and the coding type weight of each frame to be encoded for each
joint encoding time instant that is able to achieve higher average picture quality
and lower quality variations along time and between the various video sequences,
when compared with independent sequence encoding derived from JM reference
model rate control solution for H.264/AVC. Finally, by the end of 2007, a new
research activity has been initiated addressing the problem of how to efficiently
combine error resilience and rate-control techniques for frame-based video coding
systems. Results for this activity will be available in 2008.
Image restoration
A new method for blind and semi-blind image deblurring has been developed. The
method, which requires only very weak assumptions on the original image and on
the blurring operator, is much more general than other methods known to date. It
uses a prior on images that privileges those with sparse edges, and employs a
guidance technique, for the optimization, that starts with the strongest and biggest
features of the image, progressively taking into account smaller and weaker details.
193
The assumptions on the blurring operator are that it has a finite support and that it
has a generally low-pass character. The assumption on the original images that
were subjected to blurring is that they have sharp, sparse edges, as most natural
images do. Experimental results show that, even for very ill-posed blurring
operators, the result of deblurring is quite good. Tests on out-of-focus and motionblurred photographs also show significant improvements. The method can also be
applied to other kinds of images, like astronomical ones and those resulting from xrays, tomography and magnetic resonance, for example.
Video error resilience
In 2007, research on error resilience for object-based video coding systems has
finally reached an end. This activity continued to address the problem of
maximizing the decoded video quality when transmitting object-based video data
through error prone channels. The major achievement has been the proposal of a
complete error resilient object-based video coding architecture, which integrates
several complementary error resilience techniques in the relevant modules at the
encoder and decoder sides of a typical object-based video coding system.
Additionally, in 2007, the error resilience capabilities of Wyner-Ziv video coding has
been also considered. The major achievement has been a formal study fo the error
resilience performance of a transform domain Wyner-Ziv video codec (relying on a
feedback
channel)
using
appropriate
scenarios
and
conditions,
notably
in
comparison with the best performing H.264/AVC standard. At the end of 2007,
research on how to efficiently combine error resilience and rate-control techniques
for frame-based video coding systems was started, but results will only be available
in 2008.
Image and video processing and analysis
On this research front, our work has focused on the following directions: 1) video
analysis of underwater images, in cooperation with INRB/IPIMAR, to quantify the
abundance of Norway lobster in the Portuguese Atlantic and Mediterranean coasts.
2) Video analysis of road pavement images for detection of surface cracks in
highways. 3) Automatic detection and recognition of traffic signs, using a database
of Portuguese traffic signs created for this purpose. 4) People recognition using
biometrics. 5) Analysis of gastrointestinal images obtained from wireless capsule
endoscopy. 6) A new method for the detection of polyps in endoscopic images was
194
developed and published. 7) An iris classification approach using multiple signatures
was developed and published. 8) A method to increase the robustness to noisy
imaging environments through the selection of the higher discriminating features
was developed and published.
The research in this area has also focused on problems involving remote sensing
imagery, namely the combination of multi-sensor indexes and the problem of
contextual classification of images. For the second case, a novel approach based on
spanning forests has been developed.
Computer Graphics
The research activity was concentrated on the multiresolution analysis and data
structures for geometric models.
simplification
algorithms
for
The work carried out was focused on
polygonal
meshes
and
in
the
compression,
transmission and progressive visualization of 3D geometric models. Some work was
also initiated in virtual environments and graphics for mobile devices.
Source Separation
Research in source separation has continued throughout 2007, namely with the
development and testing of two methods for the separation of nonlinear mixtures of
images. One of the methods is based on a physical model of the mixture process,
the inverse of that model being used for separation. The model's parameters are
optimized by means of the MISEP method of nonlinear ICA. The other method
doesn't use any independence criterion. It is, instead, based on the sparsity of the
high-frequency content of images. A soft winner-take-all competition is performed
between the high frequency content of the two mixture images. This is done at
multiple resolutions, by means of a wavelet decomposition. The source images are
then reconstructed from the high-frequency content that results from this
competition. Both of these methods yield good separation quality. Both methods
resulted in papers published in a refereed international conference. Journal papers
corresponding to both works are under preparation. Another relevant aspect of this
year's activity was the publication of the book ''Nonlinear Source Separation'',
authored by Luis B. Almeida and published in 2007 by Morgan and Claypool
Publishers.
195
Pattern Recognition and Automatic Learning
Network inference
The study of networked systems is an emerging field, impacting almost every area
of engineering and science, including the important domains of communication
systems, biology, sociology, and cognitive science. In 2007, we have developed a
new version of the algorithm proposed in 2006, specially tailored to bioinformatics
data; this new version of the algorithm is able to explicitly handle noisy data. The
paper describing this research has been accepted for publication in the IEEE
Transactions on Information Theory, and will appear in 2008.
Dissimilarity measures for symbolic sequences
In this research front, we have continued our work on the development of
information-theoretic
techniques
to
measure
dissimilarity
between
symbolic
sequences (e.g., text). Information-theoretic dissimilarity measures are “agnostic”
in the sense that they do not assume any specific generative model, nor do they
require estimation of such models. During 2007, we have concentrated on nonextensive information theoretic kernels, focusing on theoretic aspects. Namely, we
have proposed new kernels on measures, based on Tsallis information theory, and
have provided formal proofs of their positive definite nature, both on discrete
probability distributions and in arbitrary measured spaces.
Hybrid generative/discriminative learning
We have continued to work on new training algorithms combining both generative
and discriminative views. We have developed algorithms which incorporate steps
from the classical expectation-maximization algorithm for mixtures of Gaussians
with a logistic regression step to update (in a discriminative way) the output
weights. We also describe an incremental version of the algorithm, which is robust
regarding initial conditions. In 2007, we have extended our previous work to a
boosting framework (discriminative) using simple liner classifiers for Gaussian
classes (generative).
196
4.3.4
Overview
Funding Agency
Number
AdI
1
ESA
2
ESF
2
EU, IST Programme
6
FCT/POCI
1
FCT/POSC
6
FCT/PTDC
4
FLAD
1
GRICES
1
GRICES/CNR
1
INSTICC
1
Internal
3
INTERREG III-B «Espaço Atlântico»
1
IT/LA
3
PT Inovação
1
TOTAL
34
Table 26 – Number of active projects in the Networks and Multimedia Area during 2007
197
Acron / Ref
Tecnovoz
Title
Tecnovoz
Funding
AdI
Descript.
Tecnovoz
is
a
national
collaborative
project
involving
4
scientific
organizations that work on speech recognition and speech synthesis and 8
industrial organizations that want to introduce speech technology in their
products. This project represents an opportunity for Portugal to play a
major role in this technology and to have a word in the development of
speech applications using its own language. The project started in July,
2006 and, in the end, 14 different applications and services are expected to
use speech as an alternative to other input/output interfaces.
The work carried out by IT researchers is related to noise robustness in
automatic speech recognition. IT is developing a module for the detection
of connected commands with speaker independence and capable of
working in adverse environments. The recognizer will be embedded in 2
demonstrators that will be built by 2 industrial project participating
partners. One of these demonstrators will be used inside an automobile
and the other in the proximity of noisy machinery. Both environments
represent a technical challenge for the recognition engine that IT is
developing.
In the first semester of the project, we built a recognizer trained with an
available Portuguese database of digits recorded through the telephone
network. Another participant of the project will collect a command
database whose contents will be used in the training of the final models.
Acron / Ref
TOP / 20173/06/NL/NH
Title
Transport Protocol for DVB-RCS Interoperable PEP-Phase 1
Funding
ESA
198
Descript.
The project objective is to develop a congestion control method
alternative to that of TCP, fully interoperable with the I-PEP specification
and specifically aimed at optimizing web browsing performance in the IPEP environment, while maintaining good performance for other TCP
traffic such as large file transfers.
The project will produce a full specification of a new protocol, validated
by
simulation
and/or
prototyping,
together
with
a
prototype
implementation shall also be delivered.
Acron / Ref
TOP/ 20173/06/NL/NH
Title
Transport Protocol for DVB-RCS Interoperable PEP-Phase2
Funding
ESA
Descript.
The project objective is to devlop a congestion control method
alternative to that of TCP, fully interoperable with the I-PEP specification
and specifically aimed at optimizing web browsing performance in the IPEP environment, while maintaining goofd performanc for other TCP
traffic such as large files transfers. Phase 1 produced a specification and
preliminary validation via simulation. The objective of Phase 2 is the
development of a prototype and evaluation of its performance in a real
or emulated network environment.
Acron / Ref
Title
Funding
Descript.
DYNAMO / COST 295
COST 295-Dynamic
Algorithms
Communication
Networks:
Foundations
and
ESF
COST 295 is an action of the European COST program (European
Cooperation in the Field of Scientific and Technical Research) inside of the
Telecommunications, Information Science and Technology domain (TIST).
199
The acronym of the COST295 Action, DYNAMO, stands for Dynamic
Communication Networks. The Action is motivated by the need to supply a
convincing theoretical framework for the analysis and control of all modern
large
networks.
This
will
be
induced
by
the
interactions
between
decentralised and evolving computing entities, characterised by their
inherently dynamic nature.
The action works through a series of technical meetings and working
groups. For more information click on the links alongside this page.
Acron / Ref
COST 292
Title
Semantic Multimodal Analysis of Digital Media
Funding
ESF
Descript.
The main objective of this action is to push forward the frontiers of
current research on semantic analysis, inference and conceptualisation
for high-level annotation and retrieval of digital audiovisual content.
The action includes 6 Working Groups:
- WG1: Focused on providing common testing data and frameworks;
- WG2: Comparison and evaluation of different methods and unification
towards a common framework;
- WG3: Work towards better representations, reduction of the dimension
of the feature space and multimodal feature fusion;
- WG4: Collaborative research on automatic paradigms for semantic
annotation focusing on video scene analysis and data and rule mining;
- WG5: Collaborative research on semi-automatic paradigms for
semantic
annotation
focusing
on
user’s
relevance
feedback
and
intelligent and evolutionary learning;
- WG6: Collaborative research to evaluate and use the developed
framework in real world applications.
200
Acron / Ref
C-Mobile
Title
Advanced MBMS for the future mobile world
Funding
EU,IST Programme
Descript.
The strategic objective of C-MOBILE is to foster the evolution of the
mobile broadcast business by providing enhancements to the 3GPP
MBMS for systems beyond 3G. It will address both resource efficiency
and service flexibility, by close coupling of broadcast and communication
capabilities on all layers, covering the radio access, core network and
the service enablers, across multiple technologies, providing a smooth
migration for MBMS evolution, which will be in line with the vision of a
federated global multicast broadcast transport as well as emerging
beyond 3G standards. Within the radio access network it will propose
new radio interface technologies, radio resource management and new
topological approaches in the architecture for an efficient support of
enhanced
MBMS
services
allowing
a
commercially
attractive
implementation. C-MOBILE will help to understand how best to organise
and schedule MBMS content from the BM-SC through the core network,
radio access, to the end users. Since this is multimedia content,
interactions with the 3GPP IP Multimedia Subsystem are expected and
C-MOBILE will explicitly investigate how best MBMS can make use of
capabilities provided by the IMS. The current concept of group
communication is narrow within Release 6 MBMS specification. CMOBILE will research, investigate and define ways to use multicast
technology to support personalized services and in particular the
concept of multicast content community where users also contribute to
the multicast service. Key market and business requirements for
multicast-broadcast services will be identified to aid defining research
directions, leading also to new business models involving the various
players. To that end it is critical to understand the needs of multicastbroadcast users, network operators, and content providers. The project
intends to make important contributions to the standardisation bodies
201
and to prove experimentally or via system level simulations innovative
concepts.
Acron / Ref
WIP
Title
An All-Wireless Mobile Network Architecture
Funding
EU,IST Programme
Descript.
We propose to study how to build an all-wireless Internet that could
grow and gradually replace the existing Internet. In our vision, the
access points of unlicensed cellular networks cooperate to create a
wireless communication infrastructure. Such a wireless network must be
self-organizing to maximize the network capacity and capabilities.
Ultimately, the all-wireless interconnection of cooperating access points
will only require limited connectivity to the wired infrastructure. We call
this all-wireless infrastructure the Radio Internet. The goal of the project
is to study how to make the Radio Internet become a reality with an
Internet-like growth towards a scalable and robust communication
infrastructure.
The objective of the project is to design, implement, and experimentally
validate an all-wireless interconnection architecture based on advanced
wireless
transmission
standards,
multiple
techniques
radio,
and
(i.e.,
new
multiple
MAC,
antennas
new
wireless
APs),
mesh
networking, cross-layer optimization, and mechanisms for seamless
mobility. We will develop a suitable measurement methodology and set
up experimental prototypes to validate our concepts. Testbeds will be
used or deployed for proof-of-concept and validation of the proposed
architecture and communication mechanisms.
To achieve the vision of the Radio Internet, we need to adopt a
disruptive approach with respect to the current Internet: rethink the
overall architecture with wireless networks as the central technology and
propose a new interconnection architecture founded on the principle of
202
all-wireless networks with some isolated wired long-haul links. By
defining
new
topology
interconnection
rules,
and
routing
elaborating
schemes,
new
designing
performances
simple
objectives,
designing self-configuring and self healing mechanisms, a large number
of wireless access networks can be dynamically interconnected to
provide wide coverage with a large capacity. In addition, such a network
infrastructure will enable new mobility perspectives and new business
models.
Acron / Ref
Title
Daidalos II
Designing
Advanced
network
Interfaces
for
the
Delivery
and
Administration of Location independent, Optimised personal Services - II
Funding
EU,IST Programme
Descript.
Daidalos will design, develop and validate a blueprint B3G Framework. It
supports
secure,
personalized
and
pervasive
services
built
on
heterogeneous network and service infrastructures for the mobile user
and will contribute to standards and industry fora.
The project addresses the fact that mobility has become a central aspect
of our lives in business, education, and leisure. It deals with rapid
technological and societal changes with proliferating technologies and
services that have resulted in complex and confusing communications
environments
for
users
and
network
operators.
By
rethinking
fundamental technology and business issues, Daidalos targets usable
and manageable communication infrastructures for the future. The goal
is
a
seamless,
pervasive
access
to
content
and
services
via
heterogeneous networks that supports user preferences and context.
The project will use a user-centred, scenario-based and operator-driven
approach to effectively cover user and business needs,
203
Acron / Ref
VISNET II / IST-1-038398
Title
Networked audiovisual media technologies
Funding
EU,IST Programme
Descript.
The main goal of VISNET II is the provision of a working environment
with appropriate integration activities and research infrastructure that
will ease and stimulate the interaction and cooperation among European
researchers and institutions with recognized excellence in various fields
embraced by audiovisual networking technologies. The fulfilment of this
objective will promote and contribute to the advances of research in this
area and ultimately improve the quality and quantity of research results.
Due to the high commitment of this NoE in conducting extensive
dissemination activities, results will easily span across its borders, thus
benefiting the whole scientific and technological communities.
Acron / Ref
Akogrimo / FP6/2002/4293
Title
Access to Knowledge through the Grid in a mobile World
Funding
EU,IST Programme
Descript.
Mobility has become a central aspect of life of citizens in business,
education,
and
leisure.
Related
mobility-enabled
3G
network
infrastructures and user communities have surpassed corresponding
Internet figures.
Independent of this development, Grid technology is evolving from a
niche market solely addressing the HPC domain towards a framework
useable within a broad business context. However, while affecting largely
identical complex applications, user and provider domains, the Grid
community has been basically Mobility-unaware.
Taking this into account, Akogrimo - by leveraging the large base of
mobile users - is aiming to radically advance the pervasiveness of Grid
computing across Europe.
204
In order to achieve this goal, in addition to embracing layers and
technologies which are supposed to make up the so-called Next
Generation Grids such as e.g. knowledge-related and semantics-driven
Web services, Akogrimo will archi-tect and prototype a blueprint of an
NGG which exploits and closely co-operates with evolving Mobile IP(v6)
infra-structures. Politically, these infrastructures are considered as the
Beyond-3G enabler. From a technically point of view, Akogrimo will
especially leverage mobility, QoS, AAA and security functionalities
provided by corresponding net-work-related middleware systems of such
infrastructures.
From a user’s point of view, Akogrimo will provide the technologies and
concepts to establish “virtual home”, mo-nadic and mobile environments
for complex problem solving across network technology and provider
domains. In generalizing the core Grid concept – namely the resourcesharing concept - Akogrimo will pattern these environments as “Mobile
Dynamic Virtual Organizations“. The MDVO concept will incorporate
network-identity-based concepts of personalization, profiling, privacy,
security and trust.
From the provider’s point of view, an Akogrimo world will provide new
business models and opportunities eventually making commercially viable
NGGs a reality.
Acron / Ref
DISCOVER / FP6/2002/15314
Title
Distributed coding for video services
Funding
EU,IST Programme
Descript.
Over the past decade several video coding technologies have emerged
to achieve great commercial success and it is widely expected that
digital video systems will completely replace all existing traditional
analogue based video systems during the next decade.
DISCOVER will address the development of several advanced digital
video coding technologies which are very likely to represent a
205
breakthrough in new video coding application scenarios. Until now video
coding research and standardization have been adopting a video coding
paradigm where it is the task of the encoder to explore the source
statistics, leading to a complexity balance where complex encoders
interact with simpler decoders. This paradigm is strongly dominated and
determined by applications such as broadcasting, video on demand, and
video streaming. Distributed Video Coding (DVC) adopts a completely
different coding paradigm by giving the decoder the task to exploit partly or wholly - the source statistics to achieve efficient compression.
This change of paradigm also moves the encoder-decoder complexity
balance, allowing the provision of efficient compression solutions with
simple encoders and complex decoders. This new coding paradigm,
never considered by any video coding standard, is particularly adequate
to emerging applications such as wireless video cameras and wireless
lowpower surveillance networks, disposable video cameras, certain
medical applications, sensor networks, multi-view image acquisition,
networked camcorders, etc., where low complexity encoders are a must
because memory, computational power, and energy are scarce.
The objective of DISCOVER is to explore and propose new video coding
schemes and tools in the area of Distributed Video Coding with a strong
potential for new applications, targeting new advances in coding
efficiency, error resiliency, scalability, and model based-video coding
thus paving the way for a breakthrough regarding the next video coding
generation.
Acron / Ref
ESQUELETO / POCI/DES/61761/2004
Title
Evaluation of biomechanical load in the muscle-scheleton system
Funding
FCT/POCI
Descript.
The project has the main objective of developing a set of experimental
and numerical tools for the study of the mechanical load applied to the
206
musculoskeletal system associated with human motion. It comprises the
development of models for data acquisition and processing, combining
signal processing, feature extraction and supervised pattern recognition
techniques and applying clustering techniques for exploratory data
analysis.
These tools can be used for performance evaluation and diagnosis of a
wide range of physical exercises performed under several human and
physical environments (sports, ergonomics, health and fitness, among
others).
Acron / Ref
Title
NSCBRRI / POSC/EEA-CPS/61271/2004
Novel Statistical Criteria for Blind Restoration and Reconstruction of
Images
Funding
Descript.
FCT/POSC
This project will address new, statistically based methods for image
restoration and reconstruction. The fundamental approach consists of using
representations of natural images yielding sparse and near-independent
coefficients. This goal will be pursued along two main lines:
1. Methods relying on a fixed, wavelet-based representation. The project
shall extend existing methods of denoising, and of deblurring using a
known blur operator, to the blind deblurring / denoising situation. The main
approach will consist of taking the blur operator as an additional unknown
in a Bayesian formulation of the problem.
2.
Methods
relying
on
a
learned,
ICA-based,
spatially
invariant
representation. The project shall address new image models, consisting of
an i.i.d. source followed by a learned, linear or nonlinear, spatially invariant
filter, and their application to the blind deblurring problem.
Besides
blurred
natural
images,
the project
will
also
address
the
reconstruction of other classes of images, namely those formed through
tomographic methods.
207
Acron / Ref
STT / POSC/EIA/55582/2005
Title
Space-Time-Types: Behavioural and Spatial Type Systems
Funding
FCT/POSC
Descript.
Our goal is the development of static analysis systems to verify safety
and liveness properties of concurrent distributed systems specified in
calculi of mobile processes. The properties we are interested in are not
only behavioural, like deadlock freedom or conformance to a protocol,
but also structural (or spatial), like connectivity or resource usage. The
existing systems treat only some of the behavioural properties, in a
limited way (not purely static, or in very restricted settings). Building on
existing work on behavioural types and on spatial logics, we aim at the
development of richer notions of types, able of expressing behavioural
and spatial properties of distributed systems. We envisage expressive,
yet decidable and computationally tractable static analysis systems,
which allow to formally prove that a process enjoys a certain property,
and that there will be no run-time property violations.
Acron / Ref
EMUSuL / POSC/EEA-SRI/61924/2004
Title
Ensemble Methods in Unsupervised and Semi-Supervised Learning
Funding
FCT/POSC
Descript.
This is a fundamental research project in the area of machine learning.
Accordingly, the goals are of methodological, theoretical and algorithmic
nature. More specifically, the project aims at:
- developing cluster combination techniques, in which partitions, clusters
and even samples can assume different weights in the combination
strategies.
- integrating common and state-of-the-art clustering algorithms in the
combination process
208
- creating a theoretical framework for the analysis of clustering
combination techniques and cluster validity
-
extending
combination
techniques
used
in
supervised
and
unsupervised learning to the semi-supervised scenario.
-
applying
the
developed
methodologies
to
challenging
learning
problems (both unsupervised and semi-supervised), such as document
classification,
web
page
classification,
and
gene-expression
data
analysis.
Acron / Ref
STEINER / POSC/EIA/63046/2004
Title
Geometric engine of inhomogeneous implicit surfaces with singularitie
Funding
FCT/POSC
Descript.
Usually, representing implicit surfaces is confined to homogeneous and
manifold ones. That is, singularities such as isolated points and selfintersections cannot be detected and thus sampled and rendered.
So, the main aims of this project are the following:
-
To
design
and
implement
new
rendering
algorithms
for
inhomogeneous and non-manifold implicit surfaces with topological
guarantees.
- To apply the acquired knowledge on implicit surfaces to modeling of
human organs and physical phenomena (e.g. fluids and fire).
Acron / Ref
Title
CONDENSA / POSC/EIA/CPS/60247/2004
IPv4/IPv6-Compliant Optical Burst Switching Network Design with
Enhanced Signaling Architectures
Funding
FCT/POSC
209
Descript.
Up to now, research work on optical burst switching (OBS) networks has
been concentrated on packets of version 4 of Internet Protocol (IPv4),
called IPv4 datagrams. However, due the exhaustion of the IPv4
addressing space, it is expected that a transition from IPv4 to IPv6
(Internet Protocol version 6) will occur before the maturity of a scalable
optical packet switching technology. This project addresses several
issues of OBS networks in a transition scenario from IPv4 to IPv6. This
project is organized into four tasks addressing: 1) new burst assembly
algorithms for edge routers to natively support IPv4/IPv6 datagrams
and IPv6 jumbograms; 2) the specification of an enhanced version of
the Just-in-Time (EJIT) signalling protocol for core routers; 3) IPv4/IPv6
- compliant QoS Support using prioritized burst segmentation and
composite burst-assembly techniques 4) the development of a testbed
of an IPv4/IPv6- compliant OBS network.
Acron / Ref
SIGAPANO / POSC/EIA/62199/2004
Title
Sensor Information Gathering with Patrol Nodes
Funding
FCT/POSC
Descript.
The main goals of the SIGAPANO (Sensor Information GAthering with
PAtrol NOdes) research project are to contribute to a fundamental
understanding of wireless sensor networks with mobile patrol nodes,
provide
an
appropriate
middleware
design
for
this
class
of
communication networks and develop a state-of-the-art sensor network
prototype to demonstrate their applicability for tasks as critical as forest
monitoring and fire detection. Wireless sensor networks made of tiny,
low-cost
devices
capable
of
sensing
the
physical
world
and
communicating over radio links, are significantly different from classical
wireless networks like 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
210
and
computational complexity, and (c) since the network is dense and the
nodes share a common objective - to gather and convey information cooperation can be used to enhance the network´s efficiency. Previous
work on the communications aspects of wireless sensor networks has
focused on mostly static models, in which the sensor nodes keep their
positions, and transmit the picked-up data to a central base station in a
fixed location. Under this scenario, the sensor nodes are expected 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 - a challenging set of tasks which might prove impractical given
the power constraints on the sensor nodes and the expected size of the
network. We propose to investigate an alternative approach, based on a
limited set of mobile ad-hoc nodes with increased processing and
communication capabilities, which are placed e.g. on a robot, a jeep or a
helicopter and are thus able to move as a patrol around the wireless
sensor network and, thus, relieve the sensor nodes from powerconsuming networking tasks by collecting the required data in loco with
less and more reliable transmissions. The project will be divided in three
complementary parts:
(1) Fundamental performance limits of sensor networks with patrol
nodes (DCCFC, Porto): we will define adequate models for this class
of wireless network and investigate the impact of the patrol nodes’
mobility on the connectivity, the capacity and the average lifetime
of the network using elements of information theory, graph theory
and stochastic processes. (2) Network architecture and middleware
for sensor networks with patrol Nodes (CRI, Lisbon): is to study and
propose a protocol stack that provides an interface between the
sensor networks and adhoc patrol nodes based on the theoretical
results of part 1. (3) Development of a prototype sensor network
for forest monitoring and fire detection. (DCC-FC + CRI):
(2) we will use two wireless sensor network kits to implement the
sensor network
architecture investigated in
part
1 and the
middleware package developed in part 2, and conclude with lab
211
demonstrations and field tests in Portuguese forests.
Acron / Ref
BLEP / PTDC/DES/72946/2006
Title
Biomechanics of Locomotion in Elderly People
Funding
FCT/PTDC
Descript.
The project has the main objective of developing a set of experimental
tools for the study of the risk of fracture in elderly people. The risk of
fracture is related to the risk of fall and to bone resistance. The aim of
this study is to develop a risk profile that can be used to identify
community-residing elderly at high risk of falling and to establish
strategies to prevent falls in healthy older adults and to identify the
variables associated with an increased risk of falls and fractures. The
use of advance clustering techniques for data reduction should allow the
identification of the relevant variables for kinematics and kinetics
parameters that are fundamental for the maintenance and development
of the balance and locomotion skills of daily live in elderly population
and also to identify high-risk groups for falls and fractures. The results
of the questionnaire assessment, field tests and laboratory studies
should allow the establishment of guidelines for the development of
exercise and perceptive training programs.
Acron / Ref
DeLKeTI / PTDC/EEA-TEL/72572/2006
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
212
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 distance
measure is learned from data (in supervised, semi-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
KLog / PTDC/MAT/68723/2006
Title
KLog - Logics for Security
Funding
FCT/PTDC
Descript.
The KLog project envisages to investigate and apply the tools and
techniques of mathematical logic, in a broad sense, to the systematic
study and design of special purpose classical and quantum kleistic (from
the greek word kleisis) logics, that may provide a deeper understanding
of the various aspects of information security, and ultimately contribute
to the improvement of the available toolset of formal methods. This
research will contribute to a better understanding of the relevant
concepts and their relationships, and help to solve and clarify some of
the open problems and key concerns of the area. The subjects to be
addressed include the design and study of logics for reasoning about
classical security protocols in distributed settings, ranging from the ideal
world of perfect cryptography to the more realistic probabilistic setting
where polynomially bounded adversaries are assumed, while also
exploring type-theoretical logic systems targeted at flexible information
213
flow analysis in languages supporting code mobility and declassification
that could be used to express distributed protocols; and the logical
study of quantum computation and information and its applications to
security, eventually leading to quantum extensions of the logics for
classical security, by considering quantum computation capabilities and
quantum communication channels. The project will also not neglect the
development of the logical foundations of combined logics and their
algebraic
counterparts
motivated
by
the
more
applied
research.
Accordingly, the project is organized in three tasks: (T0) Logic in
Computing; (T1) Logic for Classical Security; and (T2) Logic for
Quantum Security.
Acron / Ref
Title
MOGGY / PTDC/EIA/70830/2006
MOGGY - A Browser-Based Massive Multiplayer Online Game Engine
Architecture
Funding
FCT/PTDC
Descript.
1) To develop a scaleable grid middleware/engine for BBMMOGs based
on existing grid components that will facilitate an online games hosting
platform.
2) To develop a specific BBMMOG called Dark Realms. Our suggestion is
for a medieval RMSWG with a realistic realm-management interface: A
king governing from his palace.
3) To develop a multimedia game for draughts playing. It will include
chat, voice, video facilities to promote the interactivity and game
learning by the players and viewers.
4) To acquire know-how to establish a games start-up or transfer it to
portuguese games companies. This project may be a starting point for
establishing a games company in ParkUrbis (Scientific and Technological
Park in Covilhã).
214
5) To develop game skills at the undergraduate and graduate students
via BSc, MSc, and PhD theses. Through contacts of our ex-students who
are currently working for games companies in, for example, Portalegre
we hope to promote and improve protocols with these companies via
projects and training schemes.
Acron / Ref
WIPHYSEC
Title
Wireless Physical-Layer Security
Funding
FLAD
Descript.
The main goal of this project is to develop novel security technologies and
coding strategies that exploit the physical properties of wireless channels
to provide superior confidentiality.
Acron / Ref
SENECOM
Title
Secure Network Communications
Funding
GRICES
Descript.
The goal of this project is to develop secure communication protocols
based on information-theoretic principles.
Acron / Ref
EntMeso / GRICES 4.1.1 CNR
Title
Entanglement and Transport Properties in Mesoscopic Systems
Funding
GRICES / CNR
Descript.
• Estender os resultados, recentemente obtidos, sobre o efeito do
entrelaçamento no transporte de electrões a cenários mais complexos,
tendo em vista o possível melhoramento dos efeitos descobertos, assim
215
como a cenários mais realistas, tendo em vista as implementações
experimentais;
• Utilizar os resultados obtidos para desenvolver métodos para os
importantes
problemas
da
geração,
manipulação
e
detecção
de
entanglement em sistemas mesoscópicos, incluindo propostas para
hardware quântico.
Acron / Ref
Title
HCI
Reconhecimento de Padrões Cognitivos e Afectivos na Interacção PessoaComputador
Funding
INSTICC
Descript.
The main objectives
are the design and implementation
of an
experimental setup and a coherent methodological, algorithmic and
computational tool set to acquire and process emotion-related signals
during computer assisted problem solving. The signals monitored and
analised consist of electro-physiological data and computer interaction
data. This setup is twofold: to assess such emotional states under
rigorous and controlled experiments; to test the ability of the several
types of data for authentication purposes.
Acron / Ref
MPEG
Title
ISO MPEG standardization
Funding
Internal
Descript.
Specification of audiovisual representation standards (MPEG-4, MPEG-7
and MPEG-21).
216
Acron / Ref
MARinWMN
Title
Multiple Access and Routing in Wireless and Mesh Networks
Funding
Internal
Descript.
Wireless access is becoming technology of choice in the first hop link
connecting end user systems to the Internet. This success is apparent
from the succession of new and improved versions of the 802.11
standard (WiFi) and the foreseen deployment of the 802.16 standard
(WiMax). One of the notable developments in these systems is the
introduction
of
mechanisms
for
store-and-forward
operation.
The
present project has as objective the investigation of questions, relative
to such systems, for which no complete answers exist in the areas of
interaction between multiple access and routing. In addition to the issue
dealt with by the classical routing problem in wired networks, namely
choosing to which neighbor a newly received packet should be
forwarded in order to attain a given optimization criterion, the issue of
choice of transmitting power is critical for system performance, since it
impacts the tradeoff between transmission range and interference. The
project proposes to study both appropriate performance models and
their application to system studies.
Acron / Ref
AcuRec
Title
Acoustic Modelling for Speech Recognition
Funding
Internal
Descript.
The main objective of this project is the automatic training of the
acoustic model in a speech recognition system. The approach to follow
consists in the reliable detection of acoustic events that identify anchor
217
points and short segments for which phonetic labels will be estimated.
This will be done in an iterative manner using previous phone models
and confidence measures of its correct classification. The spectral
analysis system will also include features with perceptual significance
with integration periods higher and lower than the normally used ones.
In order to increase the segmentation accuracy we intend to also use
speaker normalization and adaptation techniques.
Acron / Ref
Title
AtlantisBPnet
AtlantisBPnet - Observatory of Information Society in the Atlantique
Space
Funding
Descript.
INTERREG III-B «ESPAÇO ATLÂNTICO»
Analyse and share the information about the development degree and
use of the Information and Communication Technologies in the Atlantic
Space.
Acron / Ref
DMeSTrES / IT/LA/306/2005
Title
Distributed Measurement System with Traffic Engineering Support
Funding
IT/LA
Descript.
The main objective of this project is to develop a software prototype of a
traffic engineering tool, integrating traffic measurements and traffic
analysis. The traffic measurement platform will be based on a novel
peer-to-peer (P2P) architecture recently proposed by the research team
in [Sal05a]. This work will rely on previous experience of the research
team in the development of traffic measurement tools (see, for
example,
http://www.av.it.pt/jowamp).
Traffic
analysis
will
218
be
performed in the peer elements of the measurement platform in a
distributed way. Again, this work will rely on previous experience of the
research
team
in
the
areas
of
traffic
modelling
and
statistical
characterization. Such a distributed architecture brings the benefit of
allowing easy and flexible integration of new traffic analysis modules.
The tool is expected to attract attention of the research community
working in this area.
One of the goals of traffic measurements is to support timely and
efficient traffic engineering tasks, which requires sophisticated traffic
analysis methodologies. As referred above, the research team has been
much involved in this field. However, one of the main weaknesses in this
field is the lack of software applications that integrate the developed
methodologies in a way that is easy to use by non-specialists. This
project will try to overcome this problem.
Acron / Ref
H2M IT/LA/320/2005
Title
H.264 to MPEG-2 Video Transcoder for Digital TV
Funding
IT/LA
Descript.
The main goal of this project is to develop a real-time H.264 to MPEG-2
software transcoder for video adaptation in Digital Television (DTV)
services. On the one hand, the latest international video coding
standard, ITU.T H.264, achieves high coding efficiency by employing
advanced techniques such as variable block size motion estimation,
optimised R-D mode decision, intra prediction, and multiple reference
frames. On the other hand, MPEG-2 is the most common video standard
adopted by the multimedia industry, where it finds a broad range of
applications in digital TV, DVD, etc. Due to the higher coding efficiency
of H.264, it is expected that this new standard will replace MPEG-2
compression in digital video systems. However, the complete migration
219
is expected to take several years, given the wide use of MPEG-2 based
equipments in the market place today. Therefore the type of format
conversion developed in this project has significant potential impact.
Acron / Ref
HAN-4G / IT/LA/300/2005
Title
Integration of Heterogeneous Access Networks in a 4G Architecture
Funding
IT/LA
Descript.
The project aims to address issues on heteregenous integrated
networks: (1) integration between infrastructure and ad-hoc networks;
(2) integration between 802.16 networks and fixed wired (Ethernet) and
wireless
networks
(802.11
in
managed
and
ad-hoc
mode);
(3)
integration of unidirectional broadcast networks in operator networks;
(4) seamless and fast mobility with QoS support between each access
technology.
Acron / Ref
Title
ESTIP V
ESTudo, desenvolvimento e experimentação de soluções inovadoras em
redes IP (V)
Funding
PT Inovação
Descript.
Study, implementation and experimenting in the areas of:
- Admission Control and Resources management in heterogeneous IP
networks
- Multimedia networks’ monitoring
The project will produce technical reports, evaluating the studied
algorithms and solutions, and will provide component software
prototypes to be integrated in more complex telecommunications’
solutions. ETSI/TISPAN will be used as a reference architecture.
220
4.3.5
Final Year Projects
Supervisor
Student
Paul Andrew
Crocker
Bruno
Monteiro
Marisa
Almeida,
Mário Paulino
Altina
Cardoso,
Fernando
Estrela
Daniel Cohen,
Paulo Leite,
Paulo Reis
Luís Ducla
Soares
Paulo Nunes
Paulo Nunes
CoTitle
Supervisors
Linux Network Modules for
Assincronous Iterative Algorithms
End
Date
2/
2007
Educational Video Coding Tool
Based on H.264/AVC
6/
2007
Hacking into SAP
6/
2007
Logic Security Analysis in SAP
6/
2007
Platform for the diagnosis of IP
networks: distributed
identification and analysis of
events
Platform for the diagnosis of IP
networks: intelligence and
alghoritms for events correlation
Francisco
Fontes
Renato Alves
Barros
Francisco
Fontes
Daniel Lopes
Maria Paula
Queluz
Pedro
Tomás
Sesinando e
Brandão,
João Pedreiro
António
Nogueira
Estudo e Implementação de
Alberto Barros
Rui Valadas, Redes Heterogéneas em
Dias
Ambiente Laboratorial
7/
2007
João Nuno
Matos
Aires Gouveia
No intrusive surveillance
7/
2007
A Distributed System for
Multicast LAN Video Streaming
9/
2007
Gilberto
Pascoal, Pedro
Silva
Gabriel Falcão Nuno Miguel
Paiva
Luís Amaral
Fernandes
Marques
Gabriel Falcão
Luís Filipe
Paiva
Carvalho Silva
Fernandes
Gonçalo Rato,
Fernando
José Águas
Perdigão
Lopes
Rudolphe
Paulo Nunes
Cabral, Tabrez
Hanif
Fernando
Lopes
6/
2007
6/
2007
Blind Quality Assessment of JPEG 7 /
Compressed Images
2007
Implementation of a FEC system 9 /
for DVB-S2 in Xilinx FPGAs
2007
Implementation of a FEC system 9 /
for DVB-S2 in Xilinx FPGAs
2007
MPEG7 Descriptors Tools for
Speech and Audio
9/
2007
A Deloitte Approach to PKI
7/
2008
221
Supervisor
Paulo Nunes
Paulo Nunes
Paulo Nunes
CoTitle
Supervisors
Conditional Access System on a
DVB Simulcript Platform with and
Magda Raseth
without Service Sharing: Project,
Installation and Deployment
Artur
Operating Systems Security
Andrade, Luís
Check
Ivo
Ana Souto,
Promotional Events Planning
João Castilho
Student
End
Date
7/
2008
7/
2008
7/
2008
Table 27 – List of Final Year Projects running in the Networks and Multimedia Area During
2007
MSc Theses
Supervisor
Student
João Francisco
João Paulo
Cordeiro de
Vilela
Oliveira Barros
Francisco
Fontes
Vitor António
das Neves
Pinto
Susana
Sargento
João Paulo
Madaleno
Amaro Sousa
Emanuel
Moreira
Susana
Sargento
Rafael Sarrô
Susana
Sargento
João Manuel
Lima Paiva
António Carlos Jorge
Almeida
Borreicho
Rui L. Aguiar
Nuno Sénica
Ana Fred
Hugo Silva
CoTitle
Supervisors
Cooperative Security Schemes
for Optimized Link State
Routing in Mobile Ad-hoc
Networks
Residential Services Platform
Transporte de informação
directamente sobre sistemas de
comunicação ópticos
Survivable Routing on GMPLS
over SDH Networks
Ad-hoc networks integration in
operator networks
Análise da QoS dos Serviços
Nuno Borges mais Comuns, em Redes GSM e
Carvalho,
UMTS, na Perspectiva do
Utilizador
Assessment of Router-Assisted
Congestion Control with
Window-based and Rate-based
Sources
Susana
Fast-Mobility mechanisms on
Sargento,
QoS-enabled networks
António
Teixeira,
Feature Selection in Pattern
Recognition Systems
End
Date
2/
2007
3/
2007
4/
2007
6/
2007
7/
2007
7/
2007
7/
2007
7/
2007
7/
2007
222
CoTitle
Supervisors
Daniel Nunes Susana
IEEE 802.21 in Heterogeneous
Rui L. Aguiar
Corujo
Sargento,
Handover Environments
Nuno Gonçalo
Mobilidade Rápida Heterogénea
Rui L. Aguiar
Ferreira
em Redes de Próxima Geração
Plataformas de serviços
Rui L. Aguiar Vitor Pinto
residenciais
QoS Network Design: a
Amaro Sousa Daniel Martins
Decision Supporting System
Susana
Soluções de Broadcast para
Miguel Almeida
Sargento
Redes 4G
Rui Sérgio
A Multiresolution Scheme for
Abel João
Viegas
Real-Time Geometric
Gomes
Rodrigues
Applications
Paulo Lobato Carlos Filipe
Traffic Signs Detection and
Correia
Moura Paulo
Recognition
João Francisco
Capacity and Connectivity of
Cordeiro de
Rui Costa
Small-World Networks and Dual
Oliveira Barros
Radio Networks
Management of IP Multimedia
Amaro Sousa Nuno Novo
Sessions using IM-SSF
Rui Manuel
Ricardo
Admission Control Function for
Rocha
Bandeira
Telecommunication Networks
Nuno Frederico
Fernando
Generic video automatic
Costa Ferreira
Pereira
summarization
de Matos
Location and Positionong
Maria Paula
Ivo Sousa
Systems in Mobile
Queluz
Communication Networks
WMTP - Modular Transport
Rui Manuel
Luis David
Protocol for Wireless Sensor
Rocha
Pedrosa
Networks
Gonçalo de
Francisco
Lemos
Call Admission Control
Fontes
Fernandes
Matias
António
Francisco
Multicast in UMTS Networks
Germano Paiva
Fontes
Videira
QoS measurements obtention
Pedro Manuel
Francisco
and analysis for mobile IP
Paupério
Fontes
terminals: Study and proposal
Duarte Oliveira
for solutions
Supervisor
Sérgio Faria
Student
Sandro F.
Moiron
Vitor Silva,
End
Date
7/
2007
7/
2007
7/
2007
7/
2007
7/
2007
9/
2007
9/
2007
10 /
2007
10 /
2007
11 /
2007
11 /
2007
11 /
2007
11 /
2007
12 /
2007
12 /
2007
12 /
2007
Transcodificação de modos de
12 /
vídeo entre as normas H.264 e
2007
MPEG-2
223
Supervisor
Student
CoTitle
Supervisors
Susana
Sargento
Gonçalo de
Lemos
Francisco
Fontes,
Mecanismos de Controlo de
1/
Admissão para Suporte de QoS 2008
Susana
Sargento
Pedro Paupério
Francisco
Fontes,
Mecanismos de Monitorização 1 /
em Redes de Próxima Geração 2008
Rui Manuel
Rocha
Pedro
Fernandes
WiNe-SD: Sevice Discovery for
1/
heterogeneous Wireless
2008
Networks
Rui L. Aguiar
Paulo
Luís Filipe Silva Salvador
Ferreira,
Plataformas de Serviços em
Redes Próxima Geração
Rui Manuel
Rocha
Pedro Melo
Susana
Sargento
Susana
Sargento
Maria Paula
Queluz
Fernando
Perdigão
Susana
Sargento
Susana
Sargento
Maria Paula
Queluz
Susana
Sargento
Susana
Sargento
Rui L. Aguiar
Susana
Sargento
Susana
Sargento
Susana
Sargento
Susana
Sargento
Sensopolitan - Monitoring
vibrations in subway tunnels
using WSN
Arquitectura IMS e suporte de
Jorge Ferreira
QoS
Vitor
Sinalização de Media Gateways
André Silva
Marques,
em Redes de Acesso
Tomás
Avaliação da qualidade de
Paulo Delgado
Brandão,
imagens fixas
Confidence Measures for
Arlindo Oliveira
Veiga
Speech Recognition
Francisco
Desempenho de Redes Wimax
Márcio Melo
Fontes,
com Mobilidade
Francisco
Desempenho de Redes Wimax
David Vieira
Fontes,
com Topologia em Malha
Tomás
Digital Image&Video Quality
Luis Roque
Brandão,
Assessment
Vitor
Integração de uma AGCF num
Nuno Gil
Marques,
Cenário IMS/TISPAN”
Inteligência nas Decisões de
Nuno Coutinho Rui L. Aguiar,
Mobilidade
Mecanismos de QoS para
Rui Matos
sistema operativo GNU/Linux
Mobilidade de Emissores e
João Mateiro
Rui L. Aguiar, Receptores em Redes com
Suporte de Multicast
Mobilidade Rápida em Redes de
Davide Moreira Rui L. Aguiar,
Próxima Geração
João Diogo
Francisco
Mobility and QoS in Wimax
Monteiro
Fontes,
Networks
O LTE COMO SOLUÇÃO
Daniel Marques
TECNOLÓGICA PARA A
EVOLUÇÃO DO 2G E 3G
End
Date
2/
2008
3/
2008
4/
2008
4/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
7/
2008
224
CoTitle
Supervisors
Supervisor
Student
Sérgio Faria
Tiago Emanuel Telmo
Ribeiro Gomes Fernandes,
Joel José Puga
Coelho
Rodrigues
Fernando
Perdigão
Rui L. Aguiar
José Manuel
Boavida
Gregório
André Filipe
Alves Pardal
Gabriel
Fartaria
Nuno Silva,
António Carlos Carlos Lopes
Almeida
Pereira
Susana
Sargento
Fernando
Perdigão
Susana
Sargento
Bruno Rés
Paulo
Salvador
Ferreira,
Filipe Jorge
Luís Sá,
Marques Costa
Ricardo Matos
Susana
Telmo Pereira
Sargento
António Carlos
Tiago Simoes
Almeida
Susana
Nuno Duarte
Sargento
Susana
Sargento
Rui Costa
Susana
Sargento
Nuno
Sarabando
Ana Fred
Hugo Costa
Rosa
Ana Fred
Inês Freitas
Paulo Lobato
Correia
Rogério Miguel
Lima Martins
Bernardo
Sérgio Faria
Nelson Carreira
Francisco
Fontes,
End
Date
Rede wireless ad-doc multi-hop
7/
para detectores de incêndio em
2008
florestas - Gateway
Resource Reservation Protocols
7/
for Optical Burst Switched
2008
Networks
7/
Robust speech recognition
2008
Serviços IP Multimedia em
7/
redes VoIP/3G
2008
Simulation of router-based
7/
marking schemes for
2008
congestion control
Soluções Tecnológicas e
7/
Impacto da Mobilidade numa
2008
Rede Wimax
Speech-driven real-time face
animation
7/
2008
Suporte de Mobilidade em
Redes Wimax
7/
2008
Suporte de Qualidade de
7/
Serviço em Redes Wimax
2008
TCP congestion control for high- 7 /
speed networks
2008
Vitor
Técnicas de Escoamento para
7/
Marques,
Redes Móveis
2008
Test and Measurement
7/
Rui L. Aguiar, Environments for VANETs and
2008
MANETs
Validação de Funcionalidades
em Cenários Triple-Play
Vitor
7/
exigidas pela Norma TR-101 em
Marques,
2008
Nós de Acesso de Agregação
baseados em Ethernet
Automatic e-Mail Organization 8 /
based on Content Analysis
2008
Avaliação da carga biomecânica 8 /
no sistema musculo-esquelético 2008
Nuno
Rodrigues,
Biometrics Recognition
9/
2008
Digital document compression
9/
2008
225
Supervisor
Paulo Lobato
Correia
Paulo Lobato
Correia
Student
Tiago Miguel
da Silva
Sanches
Diogo Manuel
Oliveira
Figueiredo de
la Cueva Couto
Paulo Lobato
Correia
Hugo Salvado
Rui L. Aguiar
Rui Ferreira
Sérgio Faria
Felipe
Perdigoto
Sérgio Faria
Isaac Duarte
Paulo Lobato
Correia
CoTitle
Supervisors
End
Date
Making people recognition using 9 /
biometrics more efficient
2008
Objective Evaluation of Image
and Video Segmentation
Quality
Susana
Sargento,
Telmo
Fernandes,
Telmo
Fernandes,
David João
Adão dos
Santos
Pedro Miguel
dos Santos
Rosa
People Recognition at a
Distance using Biometrics
Privacidade E Selecção De
Identidades
Remote monitor for DVB-T/C
Sense and Avoid Collison
System for UAV
Vehicle Recognition System
9/
2008
9/
2008
9/
2008
9/
2008
9/
2008
9/
2008
Fernando
Pereira
Nuno
Alexandre
Freire Moço
Automatic Detection and
10 /
Classification of Crack Patterns
2008
in Road Pavement
Computer based recognition of
NBI images of the
10 /
gastrointestinal tract for
2008
vascular and mucosa pit pattern
classification
10 /
Constrained Clustering
2008
Error Concealment for Video
10 /
Applications
2008
Real-Time Computer Vision
10 /
Tools for Capsule Endoscopy
2008
Exam Analysis
Automatic description and
11 /
retrieval of sports visual
2008
content
Fernando
Pereira
Hugo Santos
Varandas.
Compressed domain H.264/AVC 11 /
shot detection
2008
Paulo Lobato
Correia
Miguel Tavares
Luís Guardão
Coimbra
Ana Fred
João Duarte
Sérgio Faria
Rui V. P.
Fernandes
Miguel Tavares Francisco
Coimbra
Oliveira
Luís Cruz
Fernando
Pereira
Marcos
Alexandre
Medeiros
Vasco
Fernandes
Garcia Barreto
Vitor Silva,
Compression of 3D TV signals
11 /
2008
Interactive management of a
photo album
11 /
2008
226
Supervisor
Rui Manuel
Rocha
Rui Manuel
Rocha
Rui Manuel
Rocha
Rui Manuel
Rocha
CoTitle
Supervisors
GolfSense - WSN-based
João Vicente
Rui Neves,
monitoring system for golf
courses
GolfWater - WSN-based
Sérgio Santos Rui Neves,
irrigation management system
for golf courses
Student
Pedro Rebelo
12 /
2008
12 /
2008
12 /
2008
Snidgets - toolkit for easy WSN 12 /
applications' development
2008
VibSense - Characterization of
12 /
building structures' vibrations
2008
with WSN
WiMAX QoS - QoS dynamic
12 /
management system based on
2008
WiMAX service flows
WiMAXMeter - Test and
12 /
measurement bench for WiMAX
2008
systems
Improving tele-stethoscope
10 /
accuracy using signal
2009
processing
Intelligent Home Networking
João Espadanal
Gonçalves
Rui Manuel
Rocha
João Francisco
Pestana
Rui Manuel
Rocha
Nuno
Rodrigues
Rui Manuel
Rocha
João Matos
Miguel Tavares Fabio
Coimbra
Headyioglu
End
Date
Rui Neves,
Table 28 - List of MSc. Theses running in the Networks and Multimedia Area During 2007
PhD Theses
Supervisor
Student
Luís A.
Alexandre
Hugo
Proença
Susana
Sargento
Rui Prior
Luís A.
Alexandre
Amaro Sousa
Fernando
Pereira
CoTitle
Supervisors
Non-Cooperative Biometric Iris
Recognition
Arquitecturas Escaláveis de
Redes com Suporte de Qualidade
de Serviço
End
Date
1/
2007
4/
2007
Jorge Manuel
Santos
Data Classification with Neural
Networks and Entropic Criteria
5/
2007
Carlos
Borges
Lopes
Paulo Jorge
Lourenço
Nunes
Dimensioning and Resource
Management of Multi-Service
Networks
6/
2007
Rate control for object-based
video coding architectures
7/
2007
227
CoEnd
Title
Supervisors
Date
Multi-Modal Behavioral Biometrics
Hugo
3/
Ana Fred
based on HCI and
Gamboa
2008
Electrophysiology
Mário
Sandra
Algorithms for sparse and robust 6 /
Figueiredo
Jardim
signal representation
2008
Nuno Miguel
Codificação de dados utilizando
6/
Sérgio Faria
Vitor Silva,
Morais
correspondência aproximada de
2008
Rodrigues
padrões multiescala recorrentes
Information Extraction in
Rui Costa
7/
Mário Freire
,
Distributed Environments Using
Cardoso
2008
Agents Technology
Paulo
Tiago
Quantative Analysis of Security
7/
Alexandre
Monteiro
Luca Viganò,
Protocols
2008
Carreira
Grilo dos
Mateus
Reis
Fernando
Carla Calado
Automatic processing techniques 12 /
Perdigão
Lopes
for speech recognition
2008
David
Mário
Data retrieval and classification 12 /
Pereira
Figueiredo
using information distances
2008
Coutinho
Mário
Artur
Hybrid generative/discriminative 12 /
Figueiredo
Ferreira
supervised learning
2008
João Miguel
Fernando
Improved efficiency in distributed 12 /
Duarte
Pereira
video coding systems
2008
Ascenso
Catarina
Fernando
Rate control in distributed video 12 /
Isabel
Pereira
Carvalheiro
coding
2008
Brites
Sinalização de QoS em Redes de
Diogo Nuno
12 /
Rui L. Aguiar
4ª Geração com suporte de
P. Gomes
2008
difusão
Mário
João Pedro José Bioucas Wavelet-based image
12 /
Figueiredo
Oliveira
Dias,
reconstruction and restoration
2008
Design and Optimisation of
Miguel Raul
6/
João Oliveira
DWDM Millimetre-Wave FibreDias Rodrigues
2009
Radio Systems
Quality-of-service in video
Maria Paula
Tomás
6/
communications, based on
Queluz
Brandão
2009
watermarking.
Supervisor
Student
Paulo
Alexandre
Carreira
Mateus
Pedro
Alexandre
Cardoso
Baltazar
Model Checking of Quantum
Security Protocols
7/
2009
228
Supervisor
Student
CoSupervisors
Maxime
António Maria
Emile
Alarcão Ravara
Gamboni
João Francisco
Luísa Lima
Cordeiro de
Oliveira Barros
Paulo
Joel José Puga
Alexandre
Coelho
Correia da
Rodrigues
Silva Neves
Luís Henrique Mariana Sá
Martins Borges Correia Leite
de Almeida
de Almeida
End
Date
Models and Proof Methods for
Information Protection
7/
2009
Secure Network Coding
7/
2009
Study of Sensor Network
Protocols Inside Ubiquitous
Systems
7/
2009
Separation of nonlinear mixtures 11 /
of signals
2009
Susana
Sargento
Francisco
Pedro Neves
Fontes,
Pedro Amado
Assunção
Rui Manuel
Rocha
Pedro
Correia
Manuel M.
Ferreira
Henrique
José
Monteiro
Oliveira
Paulo Lobato
Correia
Title
Vitor Silva,
Acesso Sem Fios de Banda Larga
em Ambientes de Redes
Heterogéneas de Próxima
Geração
Advanced Multiple Description
Coding for Video
CommonSense - Communitybased self-organization of WSN
12 /
2009
12 /
2009
Image Processing for Supervision
12 /
and Management Support of
2009
Road Infrastructures
Kernel based methods for text
Pedro Aguiar, retrieval and semantic
desambiguation
João Francisco
Network Coding in Dynamic
Sérgio
Cordeiro de
Networks: Self-Organization
Crisóstomo
Oliveira Barros
Aspects and Topology Control
Pedro Amado Scalable video coding with
Luís Cruz
Lino Ferreira
Assunção,
dynamic regions of interest
João Francisco
João Paulo
Secure User Cooperation in
Cordeiro de
Vilela
Wireless Networks
Oliveira Barros
Mário
Figueiredo
12 /
2009
André T.
Martins
12 /
2009
12 /
2009
12 /
2009
12 /
2009
Manya Vital
Afonso
Fast Algorithms for Compressed
Sensing
1/
2010
Rui L. Aguiar
João Paulo
Silva Barraca
Susana
Sargento
Luís Barreto
Estabelecimento de Redes de
Comunidades Sobreponiveis
Controlo de Congestionamento
em Redes sem Fios_
Bandwidth Efficient Multicarrier
Systems for Wireless
Communications
6/
2010
8/
2010
Mário
Figueiredo
Miguel Raul
Ioannis
Dias Rodrigues Kanaras
9/
2010
229
Supervisor
Susana
Sargento
Carlos Sá da
Costa
Ana Fred
CoTitle
Supervisors
Marcel
Enabling Multimedia Services
Calvacanti
over Wireless Mesh Networks
Nuno
João Carlos
Hybrid P2P Protocol based in
Figueiredo
Silva,
BitTorrent
Zafeiris
Learning with Similarities and
Kokkinogenis
Similarity Learning
Student
João Francisco
Cordeiro de
Rui Costa
Oliveira Barros
Alfredo
Susana
Rui L. Aguiar
Miguel Melo
Sargento,
Matos
João Francisco
Paulo
Cordeiro de
Oliveira
Oliveira Barros
Vitor Manuel
Rui L. Aguiar
Jesus Silva
Mónica Jorge
Rui L. Aguiar
Carvalho de
Figueiredo
Information Flows in Complex
Networks
12 /
2010
Privacidade em Redes
Heterogéneas de Próxima
Geração
12 /
2010
Secure Data Gathering in Sensor 12 /
Networks
2010
Service Provisioning in Dense
Network Operator Scenarios
12 /
2010
Sincronização em Sistemas
Integrados a Alta-Velocidade
12 /
2010
Computer Assisted Analysis of
1/
Narrow-Band Imaging Endoscopy
2011
Exams
Miguel Tavares
Fahran Riaz
Coimbra
João Francisco
Cordeiro de
Oliveira Barros
João Francisco
Cordeiro de
Oliveira Barros
End
Date
9/
2010
9/
2010
9/
2010
Miguel S.
Silva
Luís Lopes,
Calculus and Languages for
Sensor Network Programming
12 /
2011
António
Carlos
Júnior.
Rui Prior,
Practical Network Coding
Protocols
12 /
2011
Table 29 - List of PhD Theses running in the Networks and Multimedia Area During 2007
230
4.3.6
Publications
Architectures And Protocols
Papers in Journals

Domingo, M.C. Domingo; R. Prior; " An Adaptive Gateway Discovery
Algorithm to Support QoS When Providing Internet Access to Mobile Ad
Hoc Networks ", Journal of Networks , Vol. 2 , No. 2 , pp. 33 - 44 ,
February , 2007 .

Domingo, M.C. Domingo; R. Prior; " An Adaptive Gateway Discovery
Algorithm to Support QoS When Providing Internet Access to Mobile Ad
Hoc Networks ", Journal of Networks , Vol. 2 , No. 2 , pp. 33 - 44 ,
January , 2007 .

Prior, R.; S. Sargento; " Cross-Layer Mobility with SIP and MIPv6 ",
Journal of Internet Technology , January , 2007 .

Prior, R.; S. Sargento; " Inter-Domain QoS Routing — Optimal and
Practical Study ", IEICE Trans. on Communications , Vol. E90B , No. 3 ,
pp. 549 - 558 , January , 2007 .

Sargento, S.; N. Sénica; J. Santos ; R. L. Aguiar; " Mobility Between
Heterogeneous
Networks:
Integration
and
Evaluation
",
The
Mediterranean Journal of Computers and Networks , Vol. 3 , No. 1 , pp. 31
- 42 , January , 2007 .

Chadha, R.; L. Cruz-Filipe; P. Mateus; A. S. Sernadas; " Reasoning about
probabilistic sequential programs ", Theoretical Computer Science , Vol.
379 , No. 1-2 , pp. 142 - 165 , February , 2007 .
231

Prior, R.; S. Sargento; " Scalable Reservation-Based QoS Architecture —
SRBQ ", Encyclopedia of Internet Technologies and Applications , March ,
2007 .

Ciccarello, F.; M. Palma; M. Zarcone; Y. Omar; V. Vieira; " Static Disorder
in a 1D Wire with Two Quantum Scattering Centers ", Laser Physics , Vol.
17 , No. 6 , pp. 889 - 892 , June , 2007 .

Cederquist, J." A Certified Email Protocol using Key Chains ", Proc
International
conference
on
Advanced
Information
networking
and
Applications - AINA 2007 , Niagara Falls , Canada , Vol. 1 , pp. 525 - 530 ,
May , 2007 .

Barros, J.; " A Feedback Reputation Mechanism to Secure the Optimized Link
State Routing Protocol ", Proc IEEE Communications Society/CreateNet
International Conference on Security and Privacy for Emerging Areas in
Communication Networks - SECURECOMM , Nice , France , September ,
2007 .

Vilela, J.P.; J. Barros; " A Feedback Reputation Mechanism to Secure the
Optimized Link State Routing Protocol ", Proc IEEE/CreateNet International
Conference
on
Security
and
Privacy
in
Communication
Networks
-
SecureComm , Nice , France , October , 2007 .

Lopes, L.B.L.; F. Martins; M.S.S. Silva; J. Barros; " A Formal Model for
Programming Wireless Sensor Networks ", Proc International Conference on
Distributed Computing in Sensor Systems - DCOSS , Santa Fe, New Mexico ,
United States , June , 2007 .

Lopes, L.B.L.; F. Martins; M.S.S. Silva; J. Barros; " A Process Calculus
Approach to Sensor Networks ", Proc International Conference on Sensor
Technologies and Applications , Valencia , Spain , October , 2007 .
232

Sargento, S.; " A QoS Architecture Integrating Ad-Hoc and Infrastructure in
Next Generation Networks ", Proc Personal Wireless Communications - PWC
, Prague , Czech Republic , September , 2007 .

Barros, J.; G. Maierbacher ; " Code Design for the Distributed Scalar
Quantization
Problem
based
on
Diophantine
Analysis
",
Proc
IEEE
Information Theory Winter School , La Colle sur Loup , France , March ,
2007 .

Barros, J.; " Codes for Sensors: An Algorithmic Perspective ", Proc
International Workshop on Algorithmic Aspects of Wireless Sensor Networks
, Wroclaw , Poland , July , 2007 .

Sargento, S.; M. Almeida; D. Corujo; " Context-Aware End-to-End QoS
Architecture in Multi-technology, Multi-interface Environments ", Proc IST
Mobile and Wireless Communications Summit , - , Hungary , May , 2007 .

Barros, J.; M.T. Tuechler; " Decoding a Function from Noisy Sensor Data: A
Factor Graph Approach ", Proc Annual Conference on Information Sciences CISS , Baltimore , United States ,March , 2007 .

Domingo, M.C. Domingo; R. Prior; " Design and Analysis of a GPS-free
Routing Protocol for Underwater Wireless Sensor Networks in Deep Water ",
Proc International Conference on Sensor Technologies and Applications ,
Valencia , Spain , December , 2007 .

Barros, J.; " Diophantine Index Assignments for Distributed Source Coding ",
Proc IEEE Information Theory Workshop - ITW , Lake Tahoe, California ,
United States , September , 2007 .

Costa, R.; J. Barros; " Dual Radio Networks: Capacity and Connectivity ",
Proc Workshop on Spatial Stochastic Models in Wireless Networks - SpaSWiN
, Limassol , Cyprus , April , 2007 .
233

Barros, J.; " From Quantum to Wireless: A Step Towards Physical-Layer
Security ", Proc International Workshop on Quantum Cryptography and
Security - LQCIL , Lisbon , Portugal , July , 2007 .

Almeida, M.; P. Neves; D. Corujo; S. Sargento; " Improving the Experience
of
Real
Time
Services
in
WiMAX
Networks
",
Proc
Conf.
on

Sargento, S.; J. Santos ; " IMS – MBMS Integration: Functional Analysis &
Architectural Design ", Proc IST Mobile and Wireless Communications
Summit , - , Hungary , July , 2007 .

Bloch, M.B.; J. Barros; S.W.M. McLaughlin; " Information Theoretic Security
for Wireless Channels - Theory and Practice ", Proc Information Theory and
Applications Workshop -, San Diego , United States , February , 2007 .

Bloch, M.B.; M. Rodrigues ; S.W.M. McLaughlin; " Information Theoretic
Security for Wireless Channels - Theory and Practice ", Proc Information
Theory and Applications Workshop -, San Diego , United States , February ,
2007 .

Sargento, S.; M. Almeida; D. Corujo; R. L. Aguiar; " Integration of Mobility
and QoS in 4G Scenarios ", Proc ACM International Workshop on QoS and
Security for Wireless and Mobile Networks , Crete , Greece , October , 2007.

Prior, R.; S. Sargento; " Inter-Domain QoS Routing with Virtual Trunks ",
Proc IEEE International Conf. on Communications - ICC , Glasgow , United
Kingdom , June , 2007 .

Oliveira, P. O.; R. Costa; J. Barros; " Mobile Secret Key Distribution with
Network
Coding
",
Proc
International
Conference
on
Security
and
Cryptography - SECRYPT , Barcelona , Spain , July , 2007 .
234

Sarrô , R.; S. Sargento; " Mobility in the Integration of Mobile Ad-hoc
Networks ", Proc IST Mobile and Wireless Communications Summit , - ,
Hungary , July , 2007 .

Sargento, S.; "
Mobility
through Heterogeneous Networks in
a 4G
Environments ", Proc IST Mobile and Wireless Communications Summit , - ,
Hungary , July , 2007 .

Ferreira, L. S.; R. M. Rocha; " Multi-Channel Clustering Algorithm to
Improve Performance of WSNs, ", Proc Conf. on Telecommunications ConfTele , Peniche , Portugal , May , 2007 .

Oliveira, P. O.; J. Barros; " Network Coding Protocols for Secret Key
Distribution ", Proc International Symposium on Information Security - IS ,
Vilamoura , Portugal , November , 2007 .

Lima, L. Lima; M.M. Medard; J. Barros; " Network Coding: A Free Cypher? ",
Proc IEEE International Symp. on Information Theory - ISIT , Nice , France ,
June , 2007 .

Sargento, S.; " On Access to the Internet through Moving Networks ", Proc
IST Mobile and Wireless Communications Summit , - , Hungary , July , 2007.

Almeida, M.; S. Sargento; JPB Barraca; R. Sarrô ; R. L. Aguiar; " On The
Limits of Ad-Hoc Networks: Experimental Evaluation ", Proc Conf. on

Bloch, M.Bloch; J. Barros; S.W.M. McLaughlin; " Practical InformationTheoretic Commitment ", Proc Conference on Communication, Control, and
Computing - Allerton , Monticello, IL , United States , September , 2007 .

Sargento, S.; " QoS Management of Multicast and Broadcast Services in
Next Generation Networks ", Proc IST Mobile and Wireless Communications
Summit , - , Hungary , July , 2007 .
235

Lima, L. Lima; J. Barros; " Random Walks on Sensor Networks ", Proc
International Symposium on Modeling and Optimization in Mobile, - WIOPT ,
Limassol , Cyprus , April , 2007 .

Barros, J.; J.N.L. Laneman; " Rate-Equivocation Tradeoffs for General
Eavesdropper
Channels
",
Proc
Information
Theory
and
Applications
Workshop - - , San Diego , United States , February , 2007 .

Fernandes, P.; R. M. Rocha; " Service Discovery in Wireless Mesh Networks:
a Survey on Candidate Solutions ", Proc Conf. on Telecommunications ConfTele , Peniche , Portugal , May , 2007 .

" Service Discovery in Wireless Mesh Networks: a Survey on Candidate
Solutions ", Proc Conf. on Telecommunications - ConfTele , Pemiche ,

Prior, R.; S. Sargento; " SIP and MIPv6: Cross-Layer Mobility ", Proc IEEE
International Symp. on Computers and Communications - ISCC , Aveiro ,
Portugal , July , 2007 .

Fernandes , G. Falcão; S. Yamagiwa; V. Silva; L. Sousa; " Stream-Based
LDPC Decoding on GPUs ", Proc Workshop on General Purpose Processing on
Graphics Processing Units - GPGPU , Boston , United States , Vol. 1 , pp. * * , October , 2007 .

" TSD: Tiny Service Discovery ", Proc International Conf. on Information
Networking - ICOIN , Lisboa , Portugal , Vol. II , pp. 100 - 110 , January ,
2007 .

Fernandes, P.; R. M. Rocha; " TSD: Tiny Service Discovery ", Proc
International Conf. on Information Networking - ICOIN , Lisboa , Portugal ,
January , 2007 .
236

Sargento, S.; R. Sarrô ; J.P. Vilela; " Ubiquitous Access through the
Integration of Mobile Ad-hoc Networks ", Proc IST Mobile and Wireless
Communications Summit , - , Hungary , July , 2007 .

Prior, R.; S. Sargento; " Virtual-Trunk-Based Inter-Domain QoS Routing ",
Proc Conf. on Telecommunications - ConfTele , Peniche , Portugal , May ,
2007 .

Neves, P.; S. Sargento; F. Fontes; " WiMAX for Emergency Services: An
Empirical Evaluation ", Proc Broadband Wireless Access Workshop - BWA ,
Cardiff , United Kingdom , September , 2007 .
Network Applications and Services
Books

Sousa, M.; M.M. Freire Freire; Encyclopedia of Internet Technologies and
Applications , Idea-Group Inc. , NY , 2007 .
Papers in Journals

Adão, P.; P. Mateus; " A process algebra for reasoning about quantum
security ", Electronic Notes in Theoretical Computer Science , Vol. 170 , No.
, pp. 3 - 21 , February , 2007 .

" Experimental Evaluation on the Usage of Ad-Hoc Networks as Stubs for
Multi-Service Networks ", EURASIP Journal on Wireless Communications and
Networking , Vol. 2007 , 14 , January , 2007 .

Aguiar, R. L.; " Handovers Controlados por Rede ", Rev. do Dep. de
Electrónica e Telecomunicções da Univ. Aveiro , January , 2007 .
237

Aguiar, R. L.; ; " Layereless Communications: From Dream to Reality? ",
Wireless Networks Journal , January , 2007 .

Aguiar, R. L.; J. Santos ; M. Liebsch; " Location Privacy Extensions for the
host Identity Protocol ", Rev. do Dep. de Electrónica e Telecomunicções da
Univ. Aveiro , Vol. 4 , No. 8 , pp. 978 - 984 , June , 2007 .

Aguiar, R. L.; J. Santos ; D. Gomes; S. Sargento; " Multicast/Broadcast
Network Convergence in Next Generation Mobile Networks ", Elsevier
Computer Networks , January , 2007 .

Aguiar, R. L.; ; " Network Controlled Handovers: challenges and possibilities
", Wireless Personal Communications Journal , January , 2007 .

Aguiar, R. L.; P. Pacyna; R. Leonardi; " Pervasiveness in a competitive
multi-operator environment: the Daidalos project ", IEEE Comm. Magazine ,
Vol. 45 , No. 10 , pp. 22 - 26 , October , 2007 .

Aguiar, R. L.; " Toward IP Converged Heterogeneous Mobility: A Network
Controlled Approach ", Elsevier Computer Networks , Vol. 51 , No. 0 , pp.
4849 - 4866 , December , 2007 .

Aguiar, R. L.; A. Cartaxo; M. Madureira; P. Monteiro; D. Fonseca; " 40
Gb/s GVD and PMD Compensation Using and Linear Adjustable Filter
Prototype on OSSB Modulation ", Proc IEEE International Symp. on
Circuits and System , New Orleans , United States , May , 2007 .

Aguiar, R. L.; " A Framework for Best-effort service provisioning in ad
hoc networks ", Proc IEEE International Symp. on Computers and
Communications - ISCC , Aveiro , Portugal , July , 2007 .
238

Aguiar, R. L.; S. Sargento; " A Novel Local-Centric Mobility System ",
Proc International Conf. on Information Networking - ICOIN , Lisbon ,
Portugal , January , 2007 .

Aguiar, R. L.; S. Sargento; " A sclable and business-oriented
framework for inter-domain quality-of-service ", Proc International
Conf. on Wireless Information Networks and Systems - Winsys ,
Barcelona , Spain , July , 2007 .

Aguiar, R. L.; " AADQ: a QoS Model for mobile ad-hoc networks ", Proc
International Conf. on Telecommunications - ICT , 0 , Portugal , May ,
2007 .

Aguiar, R. L.; M. Almeida; S. Sargento; " An end-to-end QoS
Framework
for
4G
Mobile
Heterogeneous
Environments
",
Proc
OpenNet Workshop on Service Quality and IP Network Business ,
Bruxels , Belgium , March , 2007 .

Aguiar, R. L.; P. Neves; S. Sargento; " Design and Experimental
Evaluation of QoS and Mobility Support over Integrated 802.16
Metropolitan and Local Area Network ", Proc WEIRD Workshop on
Wimax, Wireless and Mobility , Coimbra , Portugal , May , 2007 .

Aguiar, R. L.; D. Fonseca; P. Monteiro; M. Madureira; A. Cartaxo; M.
Violas; R. Sousa ; " Electronic dispersion compensation solution for
high-speed optical fiber communications ", Proc Symposium on
Innovative Lightwave Technology Evolution for 100GbE Services , 0 ,
Japan , March , 2007 .

Aguiar, R. L.; S. Sargento; N. Sénica; M. Almeida; " Embedding
Identity in Mobile Environments ", Proc International Workshop on
Mobility in the Evolving Internet Architecture - MobiArch , Kyoto ,
Japan , July , 2007 .
239

Borreicho, ; A. C. M. Almeida; " Fairness and Burstiness Evaluation of
Router-Assisted Congestion Control with Window-Based Sources ", Proc
IASTED International Conf. on Wireless and Optical Communications WOC , Montreal , Canada , May , 2007 .

Aguiar, R. L.; " Impact of Heterogeneous network controlled handovers
on
multi-mode
mobile
device
design
",
Proc
IEEE
Wireless
Communications and Networking Conf. - WCNC , 0 , Afghanistan ,
March , 2007 .

Aguiar, R. L.; D. Gomes; " IP Multicast Dynnamic Mapping in
Heterogeneous Environments ", Proc IEEE International Symp. on
Personal, Indoor and Mobile Radio Commun - PIMRC , Athens , Greece,
September , 2007 .

Aguiar, R. L.; " Mobility and QoS Support for a Comercial Mobile Grid in
Akogrimo ", Proc IST Mobile Communications Summit , Budapeste ,
Romania , July , 2007 .

Aguiar, R. L.; " Mobilty and QoS Support for a Comercial Mobile Grid in
Akogrimo ", Proc Ibergrid , Santiago Compostela , Spain , May , 2007 .

Aguiar, R. L.; S. Sargento; N. Sénica; M. Almeida; " Mobilty with QoS
Support for Multi-Interface Terminals: Combined User and Network
Approach ", Proc IEEE International Symp. on Computers and
Communications - ISCC , Aveiro , Portugal , July , 2007 .

Aguiar, R. L.; " MobiSplit in a Virtualized, Multi-Device Environment ",
Proc International Conf. on Communications, Circuits and Systems ICCCAS , Glasgow , United Kingdom , June , 2007 .

Faria,
S.M.M.;
T.R.
Fernandes;
Henriques;
F.
S.
Perdigoto;
"
Multifunction Mobile Web Server for Remote Surveillance ", Proc
240
International Conf. on Electrical Engineering , Coimbra , Portugal ,
November , 2007 .

Aguiar, R. L.; M. Figueiredo; " Predicting Noise and Jitter in CMOS
Inverters
",
Proc
IEEE
PhD.
Research
in
Microelectronics
and
Electronics - PRIME , Bordeaux , France , July , 2007 .

Aguiar, R. L.; S. Sargento; " Preserving Privacy in Mobile Environments
",
Proc
IEEE
Global
Telecommunications
Conf.
-
GLOBECOM
,
Washington , United States , December , 2007 .

Aguiar, R. L.; S. Sargento; JPB Barraca; " Role based cross-layer
communities on WMN ", Proc International Conf. on E-Business and
Telecommunication Networks , Barcelona , Spain , July , 2007 .

Aguiar,
R.
L.;
"
Support
of
Anonymity
in
VANETs
-
Putting
Pseudonymity into Practice ", Proc IEEE Wireless Communications and
Networking Conf. - WCNC , 0 , Afghanistan , March , 2007 .

Aguiar, R. L.; " Who said that? Privacy at link layer ", Proc IEEE
INFOCOM , Alaska , United States , May , 2007 .
Network Operations, Management and Planning

Pavan, C.; A. Correia; A. N. Pinto; " A Statistical Model for the Average
Number of Hops in Optical Networks ", Proc Conf. on Telecommunications ConfTele , Peniche , Portugal , Vol. 1 , pp. 465 - 467 , May , 2007 .
241
Network Performance Evaluation and Design
Book Chapters
Barros, J.; " Sensor Networks: an Overview " - Chapter in Learning from

Data Streams - Processing Techniques in Sensor Networks , M. Gaber, J.
Gama , Springer , 2007 .
Papers in Journals
Almeida, M.; R. Sarrô ; JPB Barraca; S. Sargento; R. L. Aguiar; "

Experimental Evaluation on the Usage of Ad-hoc Networks as Stubs for
Multi-Service Networks ", EURASIP Journal on Wireless Communications
and Networking , Vol. 2007 , No. Article ID 62967 , pp. 1 - 14 , June ,
2007 .
Pattern Recognition and Automatic Learning
Books
Sá, J.; L. Alexandre; W.D. Duch; D.M. Mandic; (eds.); Artificial Neural

Networks -ICANN 2007, Proceedings, Part II , , Springer , Berlin , 2007 .
Fred, A. L. N.; A. K. Jain; (eds.); Pattern Recognition in Information

Systems , , INSTICC PRESS , Funchal , 2007 .
Book Chapters

Silva, H.; A. L. N. Fred; " Feature Subspace Ensembles: A Parallel
Classifier Combination Scheme using Feature Selection " - Chapter in
Multiple Classifier Systems , Josef Kittler, Fabio Roli, and Michal Haindl ,
Springer ,2007 .
242

Fazendeiro, P.; J. Oliveira ; " Fuzzy Clustering as a Data-driven
Development Environment for Information Granules " - Chapter in
Handbook of Granular Computing , W. Pedrycz et al , John Wiley & Sons
,2007 .

Silva, H.; H. Gamboa; A. L. N. Fred; " One Lead ECG Based Human
Identification with Feature Subspace Ensembles " - Chapter in Machine
Learning and Data Mining in Pattern Recognition , Petra Perner , Springer
, Leipzig , 2007 .

Figueiredo, M. A. T.; " Semi-supervised clustering: application to image
segmentation " - Chapter in Advances in Data Anlysis , R. Decker, H.
Lenz , Springer , Berlin , 2007 .

Nascimento,
J.
M.
P.;
J.
Dias;
"
Unmixing
Hyperspectral
Data:
Independent and Dependent Component Analysis " - Chapter in
Hyperspectral Data Exploitation: Theory and Applications , Chein-I Chang
, John Wiley & Sons , 2007 .
Papers in Journals

Barros, J.; M. T. Tuechler; " Estimation of Functionals over Noisy
Channels ", European Transactions on Telecommunications , December ,
2007 .

Marques, P.; J. Dias; " Moving Target Trajectory Estimation in SAR
Spatial Domain Using a Single Sensor ", IEEE Trans. on Aerospace and
Electronic Systems , Vol. 43 , No. 3 , pp. 864 - 874 , July , 2007 .

Silva, H.; A. L. N. Fred; " Pairwise Multi-Class Feature Selection: A
Wrapper Framework ", WSEAS Transactions on Systems and Control ,
Vol. 2 , No. 2 , pp. 212 - 217 , February , 2007 .
243

Proença, H.; L. Alexandre; " Towards Non-Cooperative Iris Recognition:
A Classification Approach Using Multiple Signatures ", IEEE Trans. on
Pattern Analysis and Machine Intelligence , Vol. 29 , No. 4 , pp. 607 612 , April , 2007 .

Proença, H.; L. Alexandre; " Towards Non-Cooperative Iris Recognition:
A Classification Approach Using Multiple Signatures ", IEEE Trans. on
Pattern Analysis and Machine Intelligence , Vol. 3 , No. 1 , pp. 1 - 12 ,
July , 2007 .

Yee,
L.;
S.
Multiparameter
Ozawa
Ozawa;
V.
F.
Voon;
"
Using
Block-based
Representation to Detect Tumor Features on T2-
weighted Brain MRI Images ", Methods of Information in Medicine , Vol.
46 , No. 2 , pp. 236 - 241 , February , 2007 .

Almeida, M.S.C.; L.B. Almeida ; " Wavelet-based separation of nonlinear
show-through and bleed-through image mixtures ", Neurocomputing ,
December , 2007 .

Fazendeiro, P.; J. Oliveira ; " A semantic driven evolutive fuzzy clustering
algorithm ", Proc IEEE International Conference on Fuzzy Systems FUZZ-IEEE , London , United Kingdom , Vol. 1 , pp. 1977 - 1982 , July ,
2007 .

Gamboa, H.; A. L. N. Fred; " An Electrodermal Activity Psychophysiologic
Model ", Proc International Educational and Networking Forum for
eHealth, Telemedicine and Health ICT - Med-e-Tel , Luxembourg ,
Luxembourg , Vol. 2007 , pp. 60 - 64 , April , 2007 .

Yee, L.; P.L. Correia; " Analyzing gastrointestinal tissue images using
multiple features ", Proc Conf. on Telecommunications - ConfTele ,
244

Silva, H.; H. Gamboa; A. L. N. Fred; " Applicability of Lead V2 ECG
Measurements in Biometrics ", Proc International Educational and
Networking Forum for eHealth, Telemedicine and Health ICT - Med-e-Tel
, Luxembourg , April , 2007 .

Oliveira, H.; P.L. Correia; " Automatic Crack Pavement Detection Using a
Bayesian Stochastic Pattern Recognition System ", Proc Portuguese Conf.
on Pattern Recognition - RecPad , Lisbon , Portugal , October , 2007 .

Oliveira, J. Pedro; M. A. T. Figueiredo; J. Dias; " Blind estimation of
motion blur parameters for image deconvolution ", Proc Iberian Conf. on
Pattern Recognition and Image Analysis , Girona , Spain , June , 2007 .

Nascimento, J. M. P.; J. Dias; " Blind Hyperspectral Unmixing ", Proc
SPIE - Conf. on Image and Signal Processing for Remote Sensing ,
Florence , Italy , September , 2007 .

Nascimento, J. M. P.; J. Dias; " Blind Hyperspectral Unmixing ", Proc
Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. I , pp.
617 - 624 , May , 2007 .

Ferreira, A.; M. A. T. Figueiredo; " Boosting of (very) weak learners ",
Proc Conf. on Telecommunications - ConfTele , Peniche , Portugal, May ,
2007 .

Tou, J. T.; L. Yee; Y. T. Tay; " Computer Vision-based Wood Recognition
System ", Proc International Workshop on Advanced Image Technology IWAIT , Bangkok , Thailand , Vol. 1 , pp. 197 - 202 , January , 2007 .

Nascimento, J. M. P.; J. Dias; " Dependent Component Analysis: A
Hyperspectral Unmixing Algorithm ", Proc Iberian Conf. on Pattern
Recognition and Image Analysis , Girona , Spain , June , 2007 .
245

Yee, L.; P.L. Correia; " Detection of bleeding patterns in WCE video using
multiple features ", Proc International Conf. of the IEEE Engineering in
Medicine and Biology Society - EMBC , Lyon , France , Vol. 1 , pp. 5601 5604 , August , 2007 .

Lourenço, Arl; P. V. Varela; A. L. N. Fred; António Veloso Veloso ; F.
Carnide; " Estimation of the Acquisition time for obtaining the profile of
muscular load using the APDF function ", Proc International Scientific
Conference on Prevention of Work-Related Musculoskeletal Disorders PREMUS , Boston , United States , August , 2007 .

Tou, J. T.; Y. T. Tay; L. Yee; " Gabor Filters and Grey-level Cooccurrence Matrices in Texture Classification ", Proc MMU International
Symposium on Information and Communications Technologies - M2USIC
, Petaling Jaya , Malaysia , November , 2007 .

Rabbat, M.; M. A. T. Figueiredo; R. Nowak; " Genomic network
tomography ", Proc IEEE International Conf. on Acoustics, Speech, and
Signal Processing - ICASSP , Honolulu , United States , Vol. I , pp. 373 376 , April , 2007 .

Nascimento, J. M. P.; J. Dias; " Hyperspectral Signal Subspace
Estimation ", Proc IEEE International Geoscience and Remote Sensing
Symp.- IGARSS , Barcelona , Spain , July , 2007 .

Nascimento, J. M. P.; J. Dias; " Hyperspectral Unmixing Algorithm via
Dependent Component Analysis ", Proc IEEE International Geoscience
and Remote Sensing Symp.- IGARSS , Barcelona , Spain , July , 2007 .

Proença, H.; L. Alexandre; " Iris Recognition: A Method to Increase the
Robustness to Noisy Imaging Environments Through the Selection of the
Higher Discriminating Features ", Proc IEEE International Conference on
Computational Intelligence and Multimedia Applications , Sivakasi , India
, Vol. 3 , pp. 301 - 307 , December , 2007 .
246

Alexandre, L.; " Iris Recognition: An Entropy-Based Coding Strategy
Robust to Noisy Imaging Environments ", Proc International Symp. on
Visual Computing - IVC , Lake Tahoe , United States , November , 2007 .

Martins, A.; M. A. T. Figueiredo; " Kernels and similarity measures for
text classification ", Proc Conf. on Telecommunications - ConfTele ,

Alexandre, L.; " NICE.I: Noisy Iris Challenge Evaluation - Part I ", Proc
International Conf. on Communications, Circuits and Systems - ICCCAS ,
Washinton D.C. , United States , September , 2007 .

Nascimento,
J.; M. A.
T.
Figueiredo;
J.
S.
Marques;
"
On-line
classification of human activities ", Proc Iberian Conf. on Pattern
Recognition and Image Analysis , Girona , Spain , June , 2007 .

Lourenço, Arl; A. L. N. Fred; António Veloso Veloso ; F. Carnide; "
Optimization of Observation Time for Obtaining the Profile of Muscular
Load using the APDF Function ", Proc Conf. on Telecommunications ConfTele , Penhiche , Portugal , May , 2007 .

Silva, H.; A. L. N. Fred; " Pairwise vs Global Multi-Class Wrapper Feature
Selection ", Proc WSEAS International Conf. on Artificial Intelligence,
Knowledge Engineering and Data Bases , Corfu , Greece , February ,
2007 .

Alexandre, L.; J.C. Casteleiro; N.N. Nobre; " Polyp Detection in
Endoscopic Video using SVMs ", Proc European Conference on Principles
and Practice of Knowledge Discovery in Databases - PKDD , Warsaw ,
Poland , Vol. LNAI 4702 , pp. 358 - 365 , September , 2007 .
247

Marques, P.; J. Dias; " SAR moving targets processing for low resources
platforms ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , Vol. 1 , pp. 625 - 628 , April , 2007 .

Nascimento, J.; M. A. T. Figueiredo; J. S. Marques; " Semi-supervised
learning of switched dynamical models for classification of human
activities in surveillance applications ", Proc IEEE International Conf. on
Image Processing - ICIP , San Jose , United States , Vol. III , pp. 197 200 , September , 2007 .

Lourenço, Arl; A. L. N. Fred; " STRING PATTERNS: from Single Clustering
to Ensemble Methods and Validation ", Proc Workshop on Pattern
Recognition in Information Systems , Funchal , Portugal , June , 2007 .

Yee, L.; P.L. Correia; P.F. Fonseca; A.C. Campos; " Underwater image
analysis to classify benthic habitat characteristics ", Proc Portuguese
Conf. on Pattern Recognition - RecPad , Lisbon , Portugal , October ,
2007 .

Teixeira, H.; H. Silva; P. Mil-Homens; " Vertical Jump Flight Time
Measurement: A New Method Based on Acceleration Signals ", Proc
Congress of European College of Sport Science - ECSS , Jyväskylä ,
Finland , July , 2007 .

Gamboa, H.; A. L. N. Fred; A. K. Jain; " Webbiometrics: User Verification
Via Web Interaction ", Proc Biometric Symposium BCC , Baltimore ,
United States , Vol. 2007 , pp. 33 - 38 , September , 2007 .
Project Reports

Fazendeiro, P.; J. Oliveira ; " An evolutive clustering algorithm based on
semantic constraints ", The University of Algarve Informatics Laboratory,
February , 2007 .
248
Fazendeiro,

P.;
J.
Oliveira
;
"
Fuzzy
Clustering
as
a
Data-driven
Development Environment for Information Granules ", The University of
Algarve Informatics Laboratory , , March , 2007 .
Lourenço, Arl; A. L. N. Fred; " Studying the Muscular Load Profile using the

APDF Function ", IT-FMH , , September , 2007 .
Processing, Analysis, and Coding of Audio and Visual Information
Book Chapters

Pereira, F.; J. Ascenso; C. Brites ; P. Fonseca; J. Baltazar; " Evolution and
challenges in multimedia representation technologies " - Chapter in A
portrait of state-of-the-art research at the Technical University of Lisbon ,
M. Oom de Seabra Pereira , Springer , , 2007 .
Papers in Journals

Rodrigues, R. S. R.; J. Morgado; F. S. Silva; A. Gomes; " A Ghost CellBased Data Structure for Multiresolution Meshes ", Lectures Notes in
Computer Science , Vol. 4706 , No. 2 , pp. 666 - 679 , August , 2007 .

Coimbra, M.; M. Mackiewicz; M. F. Fisher; C. J. Jamieson; J. S. Soares; J.
P. C. Silva Cunha; " Computer Vision Tools for Capsule Endoscopy Exam
Analysis ", Eurasip NewsLetter , Vol. 18 , No. 1 , pp. 1 - 19 , March , 2007.

Guillemot, C.; F. Pereira; L. Torres; T.E. Ebrahimi; R. Leonardi; J.
Ostermann; " Distributed monoview and multiview video coding ", IEEE
Signal Processing Magazine , Vol. 24 , No. 5 , pp. 67 - 76 , September ,
2007 .
249

Figueiredo, M. A. T.; R. Nowak; S. Wright; " Gradient projection for sparse
reconstruction: application to compressed sensing and other inverse
problems ", IEEE Journal on Selected Topics in Signal Processing , Vol. 1 ,
No. 4 , pp. 586 - 597 , December , 2007 .

Figueiredo, M. A. T.; J. Dias; R. Nowak; " Majorization-minimization
algorithms for wavelet-based image restoration ", IEEE Trans. on Image
Processing , Vol. 16 , No. 12 , pp. 2980 - 2991 , December , 2007 .

Brandão, T.; M.P. Queluz; " No-reference image quality assessment based
on DCT domain statistics ", Signal Processing , October , 2007 .

Sanches, T.; J. Antunes; P.L. Correia; " A Single Sensor Hand Biometric
Multimodal System ", Proc European Signal Processing Conf. - EUSIPCO ,
Poznan , Poland , September , 2007 .

Ascenso, J.; F. Pereira; " Adaptive Hash Based Side Information
Exploitation for Efficient Wyner-Ziv Video Coding ", Proc IEEE International
Conf. on Image Processing - ICIP , San Antonio , United States ,
September , 2007 .

Tagliasacchi, M.; J. Pedro ; F. Pereira; S. Tubaro; " An efficient request
stopping method at the turbo decoder in distributed video coding ", Proc
European Signal Processing Conf. - EUSIPCO , Poznan , Poland ,
September , 2007 .

Soares, L. D.; F. Pereira; " An Integrated Error Resilient Object-based
Video Coding ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
250

Paulo, C. F. P.; P.L. Correia; " Automatic Detection and Classification of
Traffic Signs ", Proc Workshop on Image Analysis for Multimedia
Interactive Services WIAMIS , Santorini , Greece , Vol. CD , June , 2007 .

Correia, P.L.; L. Yee; P.F. Fonseca; A.C. Campos; " Automating Norway
Lobster Counting Using Underwater Video Analysis ", Proc Workshop of the
ICES-FAO Working Group on Fishing Technology and Fish Behaviour WGFTFB , Dublin , Ireland , April , 2007 .

Araújo, P.; " Avaliação Remota do Desempenho da Empresa ", Proc Conf.
da Associação Portuguesa de Sistemas de Informação , Aveiro , Portugal ,
January , 2007 .

Sanches, T.; J. Antunes; P.L. Correia; " Biometric Recognition based on
Finger Surfaces ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , Vol. I , pp. 457 - 460 , May , 2007 .

Brandão, T.; M.P. Queluz; " Blind perceptual quality assessment method
for DCT-based encoded images ", Proc European Signal Processing Conf. EUSIPCO , Poznan , Poland , September , 2007 .

Brandão, T.; M.P. Queluz; " Blind PSNR estimation of video sequences
using quantized DCT coefficient data ", Proc Picture Coding Symp. , Lisbon
, Portugal , Vol. CDROM , November , 2007 .

Silva, ; J. M. Madeira; F. S. Silva; B. S. S. Santos; " Comparação entre os
algoritmos de simplificação NSA e QSlim usando a ferramenta PolyMeCo ",
Proc Encontro Português de Computação Gráfica - EPCG , Lisboa , Portugal
, Vol. 1 , pp. 107 - 116 , October , 2007 .

Cheng, D.; M. A. T. Figueiredo; " Cosegmentation for image sequences ",
Proc International Conf. on Image Analysis and Processing - ICIAP ,
Modena , Italy , September , 2007 .
251

Brites , C.; F. Pereira; " Encoder Rate Control for Transform Domain
Wyner-Ziv Video Coding ", Proc IEEE International Conf. on Image
Processing - ICIP , San Antonio , United States , September , 2007 .

Rodrigues, R. S. R.; J. Morgado; F. S. Silva; A. Gomes; " Esquema
Multiresolução para Aplicações Geométricas em Tempo Real ", Proc
Encontro Português de Computação Gráfica - EPCG , Lisboa , Portugal ,
Vol. 1 , pp. 117 - 124 , October , 2007 .

Brandão, T.; M.P. Queluz; " Estimation of DCT coefficient statistics from
their quantized values: application to image quality evaluation ", Proc
Conf. on Telecommunications - ConfTele , Peniche , Portugal , May , 2007 .

Silva, ; F. S. Silva; Madeira ; Sousa Santos; " Evaluation of mesh
simplification algorithms using PolyMeCo: A Case Study ", Proc SPIE Conf. on Visualization and Data Analysis - VDA , San Jose, California ,
United States , Vol. 6495 , pp. 64950D - 64950D , January , 2007 .

Moiron, S.; S.M.M. Faria; P.A. Assunção; V. Silva; A. Navarro; " Fast
Interframe Transcoding from H.264 to MPEG-2 ", Proc IEEE International
Conf. on Image Processing - ICIP , San Antonio , United States , Vol. IV ,
pp. 69 - 72 , September , 2007 .

Faria, S.M.M.; V. Silva; A. Navarro; R. Marques; P.A. Assunção; " H.264 to
MPEG-2
Conversion
of
Intra
Coded
Video
",
Proc
Conf.
on
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 445 - 448
, May , 2007 .

Almeida, R.; F. Pereira; " H.264/AVC low complexity encoding: a novel fast
coding mode selection solution ", Proc Conf. on Telecommunications ConfTele , Peniche , Portugal , May , 2007 .

Moiron, S.; S.M.M. Faria; P.A. Assunção; V. Silva; A. Navarro; "
H.264/AVC to MPEG-2 Video Transcoding Architecture ", Proc Conf. on
252
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 449 - 452
, May , 2007 .

Nunes, P.; F. Pereira; " Improved Feedback Compensation Mechanisms for
Multiple Video Object Encoding Rate Control ", Proc IEEE International
Conf. on Image Processing - ICIP , San Antonio , United States ,
September , 2007 .

Nunes, P.; G. Pastuszak; A. Pietrasiewicz; F. Pereira; " Joint Bit-Allocation
for Multi-Sequence H.264/AVC Video Coding Rate Control ", Proc Picture
Coding Symp. , Lisboa , Portugal , November , 2007 .

Moiron, S.; S.M.M. Faria; P.A. Assunção; V. Silva; A. Navarro; " Lowcomplexity video content adaptation for legacy user equipment ", Proc
International Conf. on Multimedia Communications , Nafpaktos , Greece ,
August , 2007 .

Yamagiwa, S.; L. Sousa; T. Brandão; " Meta-pipeline: a new execution
mechanism for distributed pipeline processing ", Proc International Symp.
on Parallel and Distributed Computing - ISPDC , Hagenberg , Austria , July
, 2007 .

Moiron, S.; S.M.M. Faria; P.A. Assunção; V. Silva; A. Navarro; " Mode
Conversion for H.264 to MPEG-2 Video Transcoder ", Proc Picture Coding
Symp. , Lisbon , Portugal , November , 2007 .

Rodrigues, Nuno M. M. ; E. Silva; M. Carvalho; S.M.M. Faria; V. Silva; "
Multiscale Recurrent Pattern Predictive Image Coding with Template
Matching ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , Vol. , pp. 427 - 430 , May , 2007 .

Silva, F. S.; " NSA Simplification Algorithm: geometrical vs. visual quality
", Proc Computational Science and Its Applications - ICCSA , Kuala Lumpur
, Malaysia , Vol. 1 , pp. 515 - 523 , August , 2007 .
253

Rodrigues, Nuno M. M. ; E. Silva; M. Carvalho; S.M.M. Faria; V. Silva; " On
Overriding H.264/AVC B-Slice Predicted Residue Coding ", Proc Picture
Coding Symp. , Lisboa , Portugal , November , 2007 .

Nunes, P.; F. Pereira; " Rate Control Architecture for Joint Object-based
MPEG-4 Video Encoding ", Proc Conf. on Telecommunications - ConfTele ,

Sousa, M.; M.M. Freire Freire; " Self-Similarity Analysis Applied to 2D
Breast Cancer Imaging ", Proc International Conference on Systems and
Networks Communications , Cap Esterel , France , Vol. 1 , pp. 1 - 6 ,
August , 2007 .

Costa,
M.C.;
S.S.
Soares;
P.A.
Assunção;
J.B.
Barroso;
"
Signal
Reconstruction Techniques Applied to High Frame Rate Sequences ", Proc
IEEE International Symp. on Industrial Electronics - ISIE , Vigo , Spain ,
June , 2007 .

Pedro , J.; L. D. Soares; C. Brites ; J. Ascenso; F. Pereira; C.B.
Bandeirinha; S.Y. Ye; F.D. Dufaux; T.E. Ebrahimi; " Studying Error
Resilience Performance for a Feedback Channel Based Transform Domain
", Proc Picture Coding Symp. , Lisbon , Portugal , November , 2007 .

Pedro , J.; C. Brites ; J. Ascenso; F. Pereira; " Studying the Feedback
Channel in Transform Domain Wyner-Ziv Video Coding ", Proc Conf. on

Pereira, F.; J. Ascenso; C. Brites ; " Studying the GOP size impact on the
performance of a feedback channel-based Wyner-Ziv video codec ", Proc
IEEE Pacific-Rim Symposium on Image and Video Technology - PSIVT ,
Santiago , Chile , December , 2007 .
254

Artigas, X. A.; J. Ascenso; M. Dalai; D.K. Kubasov; M.O. Ouaret; " The
DISCOVER codec: Architecture, Techniques and Evaluation ", Proc Picture
Coding Symp. , Lisbon , Portugal , November , 2007 .

Correia, P.L.; L. Yee; P.F. Fonseca; A.C. Campos; " Underwater Video
Analysis for Norway Lobster Stock Quantification Using Multiple Visual
Attention Features ", Proc European Signal Processing Conf. - EUSIPCO ,
Poznan , Poland , September , 2007 .

Naccari, M.; G. Bressan; M. Tagliasacchi; F. Pereira; S. Tubaro; " Unequal
error
protection
based
on
flexible
macroblock
ordering
for
robust
H.264/AVC video transcoding ", Proc Picture Coding Symp. , Lisbon ,
Portugal , November , 2007 .

Areia, J.; C. Brites ; J. Ascenso; F. Pereira; " Wyner-Ziv stereo video
coding using a side information fusion approach ", Proc International
Workshop on Multimedia Signal Processing , Chania , Greece , October ,
2007 .
SPEECH ANALYSIS AND RECOGNITION

Lopes, C.; F. Perdigão; " Hybrid HMM/SVM Speech Event Detector ", Proc
Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp.
601 - 604 , May , 2007 .

Lopes, C.; F. Perdigão; " Speech Event Detection By Non Negative Matrix
Deconvolution ", Proc European Signal Processing Conf. - EUSIPCO , Poznan
, Poland , September , 2007.

Lopes, C.; F. Perdigão; " Speech event detection using SVM and NMD ", Proc
International Symp. on Signal Processing and its Applications - ISSPA ,
Sharjah , United Arab Emirates , February , 2007 .
255
Traffic Engineering
Book Chapters

Nogueira, A. N.; P. S. Salvador; R. Valadas; A. Pacheco; " Modeling IP
Traffic Behavior through Markovian Models " - Chapter in Encyclopedia of
Internet Technologies and Applications , Mário Freire and Manuela Pereira ,
Idea-Group Inc. , Hershey , 2007 .
Papers in Journals

Nogueira, A. N.; P. S. Salvador; R. Valadas; " A Framework for Detecting
Internet Applications ", Lectures Notes in Computer Science , January, 2007.

de Oliveira, M.R.O; R. Valadas; A. Pacheco; P. S. Salvador; " Cluster
analysis of Internet users based on hourly traffic utilization ", IEICE Trans.
on Communications , Vol. E90-B , No. 7 , pp. 1594 - 1607. , July , 2007 .

J. Valero; R. R. P. Paulo; F. J. Velez; " Event-Based Simulation for Multi-rate
Multi-service Traffic Validation in B3G Systems ", Proc IEEE Vehicular
Technology Conf. , Dublin , Ireland , Vol. 1 , pp. 704 - 709 , April , 2007 .

Juárez, J. M. J.; R. R. P. Paulo; F. J. Velez; " Event-Based Tele-Traffic
Simulation of Mobile Communication Systems Beyond 3G ", Proc Conf. on
Telecommunications - ConfTele , Peniche , Portugal , Vol. , pp. 343 - 346 ,
May , 2007 .

Nogueira, A. N.; P. S. Salvador; R. Valadas; " Joint Modeling of MANET
Characteristics for QoS Prediction ", Proc IEEE International Symp. on
Computers and Communications - ISCC , Aveiro , Portugal , July , 2007 .

Ferreira, L. S.; C. Caeiro; M. Ferreira; M. Nunes; " QoS Performance
Evaluation of a WLAN Mesh versus a WIMAX Network for an Isolated Village
256
Scenario ", Proc EuroFGI Workshop on IP QoS and Traffic Control , Lisbon ,
Portugal , December , 2007 .

Hajduczenia, M.; H. J. A. Silva; P. Monteiro; " Source Line Load Equalization
Methods for Source Aggregation Algorithm (SAA) ", Proc IEEE International
Symp. on Computers and Communications - ISCC , Aveiro , Portugal , June ,
2007 .

Valero, J.; R. R. P. Paulo; F. J. Velez; " Validação de modelos de tráfego
multi-serviço para sistemas de comunicações móveis de 3.5G com suporte
de mobilidade ", Proc Engenharia - Jornadas da Universidade da Beira
Interior , Covilhã , Portugal , November , 2007 .
4.3.7
Other Achievements
Prototypes

Barros, J.; L. Lima; " MobSim - Simulator for Mobile Data Gathering ",
Portugal , October , 2007 .

Crisostomo , S.; J. Barros; " NC-SIM: Network Coding Simulator ", Portugal ,
July , 2007 .

Oliveira, P. O.; J. Barros; " SiGaPaNo - sensor network forest monitoring
prototype ", Portugal , December , 2007 .

Faria, S.M.M.; L.F. Ferreira; L. Alves; " Telemaco ", PT--- , June , 2007 .

Faria, S.M.M.; T.R. Fernandes; F. S. Perdigoto; " XSpy ", PT , October , 2007
Awards

Figueiredo, M. A. T.; " Prémio UTL/Santander-Totta, in the area of Electrical
Engineering and Computer Science ", Prize awarded to the UTL researcher
with the highest scientific impact, according to the ISI Science Citation
Index, in the period 2002-2006. , 01-12-2007 .
257

Gamboa, H.; " Finalist of the European Biometrics Research Award ",
One of the three finalists for the European Biometrics Research award,
as a recognition of the Phd work. , 01-09-2007 .

Sargento, S.; " Best Local Student Paper Award ", Vítor Jesus, Susana
Sargento, Daniel Corujo, Nuno Sénica, Miguel Almeida, Rui L. Aguiar,
“Mobility with QoS Support for Multi-Interface Terminals: Combined
User and Network Approach”, in Proc. 12th IEEE Symposium on
Computers and Communications (ISCC 2007), Aveiro (Portugal), Julho
2007, Best Local Student Paper. , 01-07-2007 .

Figueiredo, M. A. T.; J. Pedro Oliveira; J. Dias; " Blind estimation of
motion-blur parameters for image deconvolution ", Best paper award,
Iberian Conference on Pattern Recognition and Image Analysis , 01-062007 .

Correia, P.L.; " IEEE T-CSVT Outstanding Associate Editor Award ",
Paulo Lobato Correia received an IEEE Transactions on Circuits and
Systems for Video Technology ''Outstanding Associate Editor Award''
during the 2007 meeting of the IEEE T-CSVT Editorial Board, held in
New Orleans, on May 28, 2007. , 01-05-2007 .
Miscellaneous

Pereira, F.; " Member of Technical Committee ", Pacific-Rim Conference
on Multimedia (PCM’07) ", Hong-Kong , 01-12-2007 .

Pereira, F.; " Member of Technical Committee ", 12th Iberoamerican
Congress
on
Pattern
Recognition
(CIARP’2007)
",
Viña
del
Mar,
Valparaiso, Chile , 01-11-2007 .

Pereira, F.; " Member of Technical Committee ", 16th International
Packet Video Workshop ", Lausanne, Switzerland , 01-11-2007 .

Pereira, F.; " Invited Talks ", DISCOVER Monoview Video Codec ",
Workshop on Recent Advances in Distributed Video Coding, Instituto
Superior Técnico, Lisboa, Portugal , 01-11-2007 .
258

Assunção, P.A.; " Technical Audit ", FP6/IST Project Review ", FP6/IST
Project ENTHRONE , 01-11-2007 .

Pereira, F.; " Member of Advisory Committee ", IEEE International
Conference on Signal Processing and Communications ", Dubai, United
Arab Emirates , 01-11-2007 .

Pereira, F.; " Member of Advisory Committee ", Picture Coding
Symposium (PCS’2007) ", Lisbon, Portugal , 01-11-2007 .

Pereira, F.; " Member of Technical Committee ", 15º Encontro Português
de Computação Gráfica ", Porto Salvo, Portuga , 01-10-2007 .

Pereira, F.; " Member of Technical Committee ", International Workshop
on Multimedia Signal Processing (MMSP'07) ", Chania - Greece , 01-102007 .

Ravara, A.R.; " MSc Thesis Jury ", SPATIAL TYPES FOR CONCURRENCY:
A Spatial Logic to Specify and Verify Distributed Systems ", , 01-10-2007

Conference on Image Analysis and Processing (ICIAP’2007) ", Modena,
Italy , 01-09-2007 .

Pereira, F.; " Member of Technical Committee ", ACM Multimedia ",
Augsburg, Germany , 01-09-2007 .

Pereira, F.; " Member of Technical Committee ", European Signal
Processing Conference (EUSIPCO’ 2007) ", Poznan - Poland , 01-09-2007

Pereira, F.; " Member of Technical Committee ", IEEE International
Conference
on
Advanced
Video
and
Signal
based
Surveillance
(AVSS’2007) ", London, UK , 01-09-2007 .

Pereira, F.; " Member of Technical Committee ", International Conference
on Image Processing (ICIP’2007) ", Santo Antonio, TX, USA , 01-092007 .

Pereira, F.; " Tutorial ", MPEG multimedia standards: evolution and
future developments ", ACM Multimedia, Augsburg, Germany , 01-092007 .

Pereira, F.; " Training Course ", MPEG-21: a standard for a multimedia
framework ", European Patent Office, Munich, Germany , 01-09-2007 .
259

Pereira, F.; " Member of Technical Committee ", 9th Symposium on
Advanced Concepts for Intelligent Vision Systems (ACIVS’2007) ", Delft,
Netherlands , 01-08-2007 .

Pereira, F.; " Member of Technical Committee ", International Conference
on Image Analysis and Recognition (ICIAR’2007) ", Montreal, Canada ,
01-08-2007 .

Pereira, F.; " Member of Technical Committee ", Third International
Mobile and Multimedia Communications Conference (MobiMedia’2007) ",
Nafpaktos, Greece , 01-08-2007 .

Pereira, F.; " Member of Technical Committee ", 4th Visual Information
Engineering Conference (VIE’2007) ", London, UK , 01-07-2007 .

Pereira, F.; " Member of Technical Committee ", IEEE International
Conference on Multimedia and Expo (ICME’2007) ", Beijing, China , 0107-2007 .

Faria, S.M.M.; P.A. Assunção; " Editor of Conference Proceedings ",
International
Conference
on
Signal
Processing
and
Multimedia
Applications ", ISBN-978-989-8111-13-5 , 01-07-2007 .

Pereira, F.; " Tutorial ", MPEG multimedia standards: evolution and
recent developments ", IEEE International Conference on Multimedia and
Expo (ICME’2007), Beijing, China , 01-07-2007 .

Figueiredo, M. A. T.; " Invited Talks ", On Semi-Supervised and Active
Learning ", Statistics for Data Mining, Learning, and Knowledge
Extraction - IASC'2007 , 01-07-2007 .

Assunção, P.A.; " PhD Thesis Jury ", Rate Control for Object Based Video
Coding ", Paulo Nunes , 01-07-2007 .

Conference on Visual Information Systems (VISUAL’2007) ", Shanghai,
China , 01-06-2007 .

Correia, P.L.; " Invited Talks ", Biometrics for Recognition (and More?) ",
Mestrado de Informática Médica, Faculdade de Ciências da Universidade
do Porto , 01-06-2007 .

Pereira, F.; " Member of Technical Committee ", Fifth International
Workshop
on
Content-Based
Multimedia
Indexing
(CBMI’2007)
",
Bordeaux, France , 01-06-2007 .
260

Assunção, P.A.; " Technical Audit ", FP7 Call 1 Evaluation ", FP7 Call 1,
Objective 1.5, Networked Media , 01-06-2007 .

Pereira, F.; " Member of Technical Committee ", IEEE Circuits and
Systems Society Visual Signal Processing and Communications (VSPC)
Technical Committee ", , 01-06-2007 .

Figueiredo, M. A. T.; " Invited Talks ", Semi-supervised Classification and
Clustering ", Seventh International Workshop on Pattern Recognition in
Information Systems - PRIS'2007 , 01-06-2007 .

Pereira, F.; " Member of Technical Committee ", Workshop on Image
Analysis for Multimedia Interactive Services (WIAMIS’2007) ", Santorini
– Greece , 01-06-2007 .

Pereira, F.; " Member of Technical Committee ", 6ª Conferência de
Telecomunicações ", Peniche, Portugal , 01-05-2007 .

Pereira, F.; " Invited Talks ", Metadata: the key for powerful multimedia
personalization ", Universidade Nova de Lisboa, Portugal , 01-05-2007 .

Pereira, F.; " Invited Talks ", Multimedia application formats: why, how
and what ? ", Università degli Studi di Cagliari, Italy , 01-03-2007 .

Pereira, F.; " Invited Talks ", Processing challenges in intelligent video
adaptation ", Università degli Studi di Cagliari, Italy , 01-03-2007 .

Fred, A. L. N.; " Training Course ", Clustering Methods ", Programa de
Doutoramento de Biologia Computacional do IGC/FCT/Siemens , 23-022007 .

Pereira, F.; " Invited Talks ", Bringing emotions to adapted multimedia
experiences ", Universitat Autónoma de Madrid, Spain , 01-02-2007 .

Assunção, P.A.; " Technical Audit ", FP6/IST Project Review ", IST / FP6
Project ASTRALS , 01-02-2007 .

Pereira, F.; " Member of Advisory Committee ", International Symposium
on Signal Processing and its Applications (ISSPA’07) ", Sharjah, United
Arab Emirates , 01-02-2007 .

Pereira,
F.;
"
Invited
Talks
", Distributed video coding: basics,
developments and challenges ", Universitat Politécnica de Madrid, Spain ,
01-01-2007 .
261

Figueiredo, M. A. T.; " Member of Technical Committee ", IEEE Technical
Committee on Image and Multidimensional Digital Signal Processing
(IMDSP-TC) ", , 01-01-2007 .

Pereira, F.; " Tutorial ", MPEG-7: multimedia content description
interface ", Workshop on MPEG Technologies, Marrakech, Morroco , 0101-2007 .

Pereira, F.; " Member of Technical Committee ", Third International
Workshop on Video Processing and Quality Metrics for Consumer
Electronics (VPQM’07) ", Scottsdale, AZ, USA , 01-01-2007 .

Pereira, F.; " Member of Technical Committee ", Visual Communications
and Image Processing (VCIP’2007) ", San Jose, CA, USA , 01-01-2007 .
262
4.3.8
Other Contributions

International Conf. on Signal Processing and Multimedia Applications,
Technical Programme Committee, Nuno Rodrigues, 01-01-2007

Australasian Telecommunication Networks and Applications Conference ATNAC, Technical Programme Committee, José Brázio, 01-01-2007

IEEE International Conf. on Acoustics, Speech, and Signal Processing ICASSP, Technical Programme Committee, Mário Figueiredo, 01-01-2007

IEEE International Conf. on Software, Telecommunications and Computer
Networks - SoftCOM, Special Sessions Chairman, Joel José Puga Coelho
Rodrigues, 01-01-2007

IST Mobile and Wireless Communications Summit, Technical Programme
Committee, José Brázio, 01-01-2007

International
Conf.
on
Image
Analysis
and
Recognition,
Technical
Programme Committee, Mário Figueiredo, 01-01-2007

European
Signal
Processing
Conf.
-
EUSIPCO,
Technical
Programme
Committee, Paulo Lobato Correia, 01-01-2007

Conf. on Telecommunications - ConfTele, Technical Programme Chairman,
Luís Sá, 01-01-2007

Picture Coding Symp., Organizing Committee, Paulo Nunes, 01-01-2007

Technical Programme Committee, Paulo Lobato Correia, 01-01-2007

Picture Coding Symp., Organizing Committee, Tomás Brandão, 01-01-2007

Picture Coding Symp., Organizing Committee, Catarina Brites , 01-01-2007

IEEE International Conf. on Multimedia and Expo - ICME, Technical
Programme Committee, Catarina Brites , 01-01-2007

International Conf. on Electrical Engineering, Scientific Committee, Sérgio
Faria, 01-11-2007

International Conf. on Electrical Engineering, Scientific Committee, Fernando
Lopes, 01-01-2007

International Workshop on Pattern Recognition in Information Systems,
Technical Programme Committee, Mário Figueiredo, 01-01-2007
263

IEEE INFOCOM, Technical Programme Committee, João Sobrinho, 01-012007

Picture Coding Symp., Special Sessions Chairman, Luís Ducla Soares, 01-012007

IEEE International Conf. on Multimedia and Expo - ICME, Technical
Programme Committee, Paulo Nunes, 01-01-2007

International Conf. on Electrical Engineering, Sessions Chairman , Fernando
Lopes, 01-01-2007

International Conf. on Telecommunications - ConTEL, Technical Programme
Committee, Sérgio Faria, 01-05-2007

Technical Programme Committee, Fernando Lopes, 01-01-2007

Sessions Chairman , Sérgio Faria, 01-01-2007

International Conf. on Telecommunications - ConTEL, Sessions Chairman ,
Sérgio Faria, 01-01-2007

International Workshop on Information Theory for Sensor Networks - WITS,
Conference Chairman, João Francisco Cordeiro de Oliveira Barros, 01-012007

IEEE Global Telecommunications Conf. - GLOBECOM, Technical Programme
Committee, João Francisco Cordeiro de Oliveira Barros, 01-01-2007

International Symposium on Information Security - IS, Technical Programme
Committee, João Francisco Cordeiro de Oliveira Barros, 01-01-2007

IEEE
International
Symp.
on
Information
Theory
-
ISIT,
Technical
Programme Committee, João Francisco Cordeiro de Oliveira Barros, 01-012007

Conf. Nacional sobre Segurança Informática nas Organizações - SINO,
Technical Programme Committee, João Francisco Cordeiro de Oliveira
Barros, 01-01-2007

6th Conference on Telecommunications - ConfTele 2007, Organizing
Committee, Sérgio Faria, 09-05-2007

International Conference on Signal Processing and Multimedia Applications
(SIGMAP 2007), Technical Programme Committee, Maria Paula Queluz, 2807-2007
264

Mosharaka International Conference on Communications, Systems and
Circuits (M-CSC07), Technical Programme Committee, Maria Paula Queluz,
28-01-2007

Moshraka International Conference on Wireless Communications and Mobile
Computing (M-WCMC07), Technical Programme Committee, Maria Paula
Queluz, 06-09-2007

13th
International
Conference
on
telecommunications,
Organizing
Committee, Pedro Amado Assunção, 01-01-2007

3rd Iberian Conference on Pattern Recognition and Image Analysis - IbPRIA
2007, Technical Programme Committee, Ana Fred, 06-06-2007

5th International Conference on Machine Learning and Data Mining, MLDM

7º Conferência de Redes e Serviços de Comunicação - CRSC´2006,
Organizing Committee, João da Silva Pereira, 01-04-2007

7th International Workshop on Pattern Recognition in Information Systems PRIS 2007, Conference Chairman, Ana Fred, 14-06-2007

9th International Conference on Enterprise Information Systems - ICEIS

ConfTele 2007, Technical Programme Committee, Fernando Pereira, 09-052007

Energy Minimization Methods in COmputer Vision and Pattern Recognition EMMCVPR'2007, Technical Programme Committee, Mário Figueiredo, 27-082007

IEEE Computer Society Conference on Computer Vision and Pattern
Recognition - CVPR'2007, Scientific Committee, Mário Figueiredo, 18-062007

IEEE International Conference on Multimedia and Expo (ICME 07), Technical
Programme Committee, Maria Paula Queluz, 02-07-2007

International Conference on Image Analysis and Recognition (ICIAR2007),
Technical Programme Committee, Maria Paula Queluz, 22-08-2007

International Conference on Image Processing - ICIP'2007, Technical
Programme Committee, Mário Figueiredo, 15-09-2007

International Conference on Signal Processing and Multimedia Applications,
Technical Programme Chairman, Pedro Amado Assunção, 01-01-2007
265

International Conference on Signal Processing and Multimedia Applications SIGMAP 2007, Technical Programme Chairman, Sérgio Faria, 28-07-2007

International
Workshop
on
Telecommunications,
Technical
Programme
Committee, António Nogueira, 12-02-2007

Maria, Technical Programme Committee, Maria Paula Queluz, 16-02-2007

Picture Coding Symposium - PCS 2007, Technical Programme Chairman,
Paulo Lobato Correia, 01-01-2007

Picture Coding Symposium (PCS'2007), Conference Chairman, Fernando
Pereira, 30-11-2007

Third Iberian Conference on Pattern Recognition and Image Analysis IbPRIA'2007, Technical Programme Committee, Mário Figueiredo, 06-062007

Third International Workshop on Video Processing and Quality Metrics for
Consumer
Electronics
(VPQM’07),
Technical
Programme
Committee,
Fernando Pereira, 31-01-2007

Workshop on Supervised and Unsupervised Ensemble Methods and Their
Applications - SUEMA 2007, Technical Programme Committee, Ana Fred, 0406-2007

Open Electrical and Electronic Engineering Journal - OEEE , Bentham Science
Publishers, João Francisco Cordeiro de Oliveira Barros, Member of the
Editorial Board, 01-07-2007 to 01-07-2010

IEEE Signal Processing Magazine , IEEE, Fernando Pereira, Associate Editor,
01-01-2007 to 31-12-2009
266
ANNUAL REPORT 2007 – BASIC SCIENCES & ENABLING TECHNOLOGIES
4.4 Basic Sciences and Enabling Technologies
4.4.1
Coordinators
Pedro Girão
Luís Alcácer
4.4.2
Human Resources
Overview
Degree
Aveiro Coimbra Lisboa
Professor Emeritus
0
0
1
Full Professor
1
2
3
Associate Professor
0
4
5
Assistant Professor
2
4
16
Post-Doc
1
0
5
0
1
2
Assistant Lecturer
0
5
0
PhD Student
2
3
12
MSc Student
0
5
7
Graduate
0
0
1
TOTAL
6
24
52
Table 30 – Overview of the human resources in the Basic Sciences ans Enabling Technologies
Area
267
Name
Degree
Position
Group
Luís Alcácer
Agregação
Professor Emeritus
TM
António Cruz Serra
Agregação
Full Professor
IM
Dinis Magalhães Santos
Agregação
Full Professor
ICS – Av
Eduardo de Sousa Saraiva
Agregação
Full Professor
Psys
Joaquim Júdice
Agregação
Full Professor
Amath
Maria Cristina Sernandas
Agregação
Full Professor
SQIG
Pedro Silva Girão
Agregação
Full Professor
IM
Artur Lopes Ribeiro
Agregação
Associate Professor
IM
Jorge Morgado
Agregação
Associate Professor
TM
Helena Ramos
Agregação
Assistant Professor
IM
António Cardoso
PhD
Associate Professor
Psys
José Carlos Teixeira
PhD
Associate Professor
Amath
Manuel Figueiredo Campagnolo
PhD
Associate Professor
SQIG
Maria Celeste Gouveia
PhD
Associate Professor
Amath
Maria Madalena Martins
PhD
Associate Professor
Amath
Rui Teives Henriques
PhD
Associate Professor
TM
Adérito Neto Alcaso
PhD
Assistant Professor
Psys
André Mendes
PhD
Assistant Professor
Psys
Beatriz Borges
PhD
Assistant Professor
PE
Carlos dos Santos Lourenço
PhD
Assistant Professor
SQIG
PhD
Assistant Professor
SQIG
Fernando Tim Tim Janeiro
PhD
Assistant Professor
IM
Francisco Alegria
PhD
Assistant Professor
IM
Daniel da Silva Graça
268
Name
Degree
Position
Group
Francisco Miguel Dionísio
PhD
Assistant Professor
SQIG
João Manuel Patrício
PhD
Assistant Professor
Amath
Jorge M. Correia Guilherme
PhD
Assistant Professor
ICS – Lx
José Cura
PhD
Assistant Professor
ICS – Av
Maria Helena Fino
PhD
Assistant Professor
ICS – Lx
Maria Paula Gouveia
PhD
Assistant Professor
SQIG
Manuel Fonseca da Silva
PhD
Assistant Professor
IM
Nuno Horta
PhD
Assistant Professor
ICS – Lx
Pedro Ramos
PhD
Assistant Professor
IM
Raul Martins
PhD
Assistant Professor
IM
Rui L. Aguiar
PhD
Assistant Professor
ICS – Av
Rui Neves
PhD
Assistant Professor
ICS – Lx
Sérgio Cruz
PhD
Assistant Professor
PSys
José Dias Pereira
PhD
IM
Luís Merca Fernandes
PhD
Amath
Manuel Matos
PhD
TM
Ana Charas
PhD
Pos-Doc
TM
Domingos Barbosa
PhD
Pos-Doc
ICS - Av
Filipe Aguiar de Moura
PhD
Pos-Doc
SQIG
Kerry Ojakian
PhD
Pos-Doc
SQIG
Octavian Postolache
PhD
Pos-Doc
IM
Tomas Radil
PhD
Pos-Doc
IM
Table 31 – Permanent Collaborators working in the Basic Sciences and Enabling Technologies
Area
269
Other Collaborators
Name
Degree
Position
Group
Carlos Ferreira
MSc
Assistant Professor
PE
Ana Carla Vicente Vieira
MSc
Assistant Lecturer
Psys
José Luís Silva
MSc
Assistant Lecturer
Psys
Luís M. Oliveira
MSc
Assistant Lecturer
PSys
Marina Perdigão
MSc
Assistant Lecturer
PSys
Natália Gameiro
MSc
Assistant Lecturer
PSys
Acácio Manuel Amaral
MSc
PhD Student
Psys
Luis Nero Alves
MSc
PhD Student
ICS – Av
PhD Student
PSys
M´hamed Drif
MSc
Ricardo Queirós
MSc
PhD Student
IM
Vítor Viegas
MSc
PhD Student
IM
Ana Luísa Mendonça
Graduate
PhD Student
TM
Hugo Marques
Graduate
PhD Student
PE
Luis Filipe Camacho
Graduate
PhD Student
SQIG
PhD Student
IM
PhD Student
TM
PhD Student
ICS - Lx
PhD Student
ICS - Av
PhD Student
IM
PhD Student
IM
PhD Student
PE
PhD Student
PE
PhD Student
AMath
Luis Maria B. Pina Soares
Luis Filipe Morgado
Manuel Fernando Barros
Mónica Figueiredo
Mouhaydine Tlemçani
Nuno Gonçalo Bandeira Brás
Raúl Domingos Monteiro
Stanimir Valtchev
Teresa G. Ferreira Gaspar
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
270
Name
Victor Costa
Carlos Manuel Duarte
David Simões
Francisco Nunes
Gonçalo Neves
Luís Carlos Maria
Manuel Pires Abraços
Nuno Calado Lourenço
Nuno M. Lucas Vieira Lopes
Pedro Miguel Mouta Rodrigues
Rui Vaz Luís
Sérgio Lopes dos Santos
Ticiana Viseu
José Augusto Alves Gouveia
Degree
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Graduate
Position
Group
PhD Student
PE
MSc Student
PSys
MSc Student
ICS - Lx
MSc Student
PE
MSc Student
ICS - Lx
MSc Student
PSys
MSc Student
PE
MSc Student
ICS - Lx
MSc Student
PSys
MSc Student
IM
MSc Student
ICS - Lx
MSc Student
PSys
MSc Student
PSys
Researcher
IM
Table 32 – Non-permanent Collaborators working in the Basic Sciences and Enabling
Technologies Area
271
4.4.3
The multidisciplinary area falling under the general heading of Basic Sciences and
Enabling Technologies comprises six main lines of research:
- Technology and Materials
- Integrated Circuits and Systems
- Instrumentation and Measurement
- Radioastronomy
- Power Electronics
- Applied Mathematics
- Logic and Computation
Technology and Materials
Scope and Objectives:
In 2007, the scientific activities in Technology and Materials dealt with Organic
Electronics and related subjects, aiming at ultralowcost, lightweight and flexible
electronic devices for displays, circuits, photovoltaic solar cells, and systems that
can be printed on anything and placed anywhere.
The most relevant activities included:
1) Applications of photo-crosslinkable polymers to fabricate multilayer LightEmmiting Diodes (LEDS) and interlayers in LEDs.
2) Fabrication and characterisation of polymeric FETs based of F8T2 and on a crosslinkabel derivative. Demonstration of field effect in the cross-linked polymer.
3) Synthesis and characterisation of copolymers made of a luminescent polymer
(Polyfluorene) and PMMA for Plastic Optical Fibers (POFs). The first POFs based on
two of these new materials were produced by an Italian Company (Luceat). The
characterisation of these fibers is under way. This activiy was carried out within a
EC-funded project via Instituto Superior Técnico.
4) Setting up of an AFM/STM to characterise surfaces topography and to be used in
the electrical characterisation of molecular monolayers (UNIME project).
5) Synthesis of new materials for photovolaic applications.
6) Search of magnetoresistance effects in LED structures of organic thin films.
7) Design and synthesis of new building blocks for molecular conductors, either
based on a single component or in the traditional donor-acceptor combinations.
272
8) Study of quantum interference on the family of molecular conductors
(perylene)2M(mnt)2, in collaboration with researchers at the National High Magnetic
Field Laboratory in Talahassee, Florida and Instituto Tecnológico e Nuclear
Integrated Circuits and Systems
Scope and Objectives:
The IC Design Automation group addresses the development of design automation
tools for “System-on-Chip” applications, the design of state-of-the-art Analog and
Mixed-Signal
IC
prototypes
and
the
development
of
E-Design/E-Learning
environments to support design activities.
There were four distinct lines of work in this sub-area:
i) Design Automation
ii) Electronic Systems Design
iii) Circuits and Systems
iv) Networks
IC Design Automation:
The group research activities on the design automation domain include:
1) Circuit and system optimization techniques, particularly, the use of evolutionary
computation techniques to optimize a broad range of circuits and systems;
2)
Automatic
circuit
and
systems
topology
search
based
on
evolutionary
computation methodologies;
3) Symbolic analysis and synthesis for analog and mixed signal systems. The
development of E-Design/E-Learning environments to support collaborative design
activities include the research on areas such as web/data mining techniques, as
well as partnerships with distance learning research teams.
IC Design:
The group research activities on the IC design include:
1) Design of analog and mixed signal ICs for telecom, e.g., the analog structures
for 4G mobile terminals;
2) Research on embedded system applied to enhance the reconfigurability of analog
and mixed signal systems;
3) Design and research on the implementation of circuits and systems on organic
technologies;
273
Circuits and Systems:
The activity pursued in the field of Circuits and Systems has been focused in three
key lines:
1) Timing issues, mainly clock synchronization and clock distribution. The work has
been mainly focused in this year in aspects surronding conceptual studies, and the
blocks that may support them.
2) High performance systems, mainly front-ends for optical communications. This
activity has been tackling both wireless and wired optical systems. In the first case,
current techniques for front-end applications are being investigated, and this
research has contributed to the field of feedback theory. In the second case, highspeed (>10Gb/s) front-ends were developed low-cost InP GaAs technologies,
including filter design.
3) infrared wireless optical communications, mainly for LANs. In this case, the work
performed was lauching a new application field for these techniques.
Networks:
The activity being pursued in the field of Networks has been focused on two
different aspects:
1) Heterogeneous network design for fixed wireless convergence. A large
demonstrator has been setup, covering QoS, mobility and ad-hoc characteristics,
including WiMax, WiFi and DVB technologies.
2) Development of novel architectures for networks, covering aspects as privacy,
wireless communications, and disruptive paradigms.
Radioastronomy
Generally speaking, the activity of this novel group consists of the development of
instrumentation for measurement and characterization of low-level radiation from
outer space, in the microwave region. Instrumentation refers both to the electronics
and physical infrastructure, including antenna mounts, drives and ancillary
equipment, such as data acquisition for environmental and meteorological
variables.
Main activities in 2007 were:
1. Work has progressed in the implementation of a large instrument in central
Portugal (a Cassegrain antenna with a diameter of 9m). As mentioned in the
project site (http://www.av.it.pt/gem/)., the instrument aims at, among other
things, building maps of the polarized emission from our galaxy in the lower
274
microwave range (around 5GHz). The drive mechanism, and necessary changes to
the antenna mount have been completed, as well as the data acquisition and
control system thereof. The instrument is expected to be in place by early Spring
2008.
2. A similar experiment is being prepared for detection and measurement of
polarized galactic radiation around 2.3GHz.
3. The design and implementation of low-level electronics for radiation detection in
he ranges of interest, and also on signal processing at the back end of the
electronics (namely, detection and correlation electroncs). Several publications
resulted from this line of work.
4. In addition to these activities, participation in international, long range projects
is being prepared. The group was formally accepted as a member of PrepSKA, an
international consortium for preparation of the implementation of SKA, the Square
Kilometer Array (http://www.skatelescope.org/), and has been active in the
preparation of the preliminary specifications for SKA. Members of group also
participated in the preparation of Radionet (a European program for the
implementation of advanced Astronomy and Astrophysics activities in Europe)
proposal for FP7.
Instrumentation and Measurement
The Instrumentation and Measurement Group developed in 2007 work that can be
further subdivided in the following topics:
•
Analogue-to-digital and digital-to-analogue conversion;
•
Measurement of electrical quantities;
•
Sensors and transducers;
•
Signal acquisition and automated and telemetric measuring systems;
•
Signal processing applied to sensors and instrumentation.
The activities in analogue-to-digital (AD) and digital-to-analogue (DA) conversion
have been centred on the collaboration with IEEE TC-10 Waveform Generation,
Measurement and Analysis Committee. Within this technical committee, GIM
members contributed to the work related with the following IEEE standards: IEEE
1057 (Waveform Digitizers), IEEE 1241 (ADC), and IEEE 1658 (DAC). Also worth
275
mentioning is the implementation of a digitally programmable ADC for smart
sensors applications.
In what concerns the measurement of electrical quantities, it should be emphasized
the measurement of voltage, current, power, impedance, admittance, and magnetic
field, all in the context of FCT funded projects. The implemented measuring devices
and systems include hardware and software developed in-house both using
commercial off-the-shelf products and specially designed products. The targets of
the developed work were, essentially, power quality analysis and magnetic
induction tomography. Related to the last subject, a prototype of a magnetic
induction tomography system was designed, implemented and tested.
R&D in sensors and transducers was mainly conducted in the context of
environmental and biomedical applications, two domains of applications favoured
by the Instrumentation and Measurement Group. Thus, new sensing structures,
namely for conductivity measurement to be used for in-situ estuarine water quality
monitoring, for fuel soil contamination, and for atmospheric visibility measurement
were designed and implemented. Ultrasound sensing was investigated for ranging
measurement and non-destructive testing namely of human prosthesis. Biomedical
and biology oriented work includes the design of a pacemaker for small rodents and
design, implementation and testing of underwater acoustic source identification and
for Sado dolphins tracking and identification.
Outside the two-above mentioned domains of applications it is worth mentioning
the realization of a prototype of a solar-based attitude sensing system to be
incorporated in satellites designed and implemented by an European students
network.
All Instrumentation and Measurement Group members have experience and
competence on signal acquisition and automated and telemetric measuring
systems. The Group has been a partner of National Instruments and the expertise
of its members has been used either within the context of R&D projects or within
collaborations with external entities. Examples of the first are the implementation
of:
•
signal
acquisition
systems,
namely
using
NI
cRIO
technology,
for
environmental monitoring applications,
•
PDA and mobile phone based instrumentation for medical applications,
276
•
remote
transmission
solutions
based
on
802.11
protocol
and
GPRS
technologies
•
systems based on Foundation Fieldbus and HART instrumentation.
•
In 2007, the following services to external entities were rendered:
•
conclusion of the automation of a 2MeV linear particle accelerator for
Instituto Tecnológico e Nuclear (ITN);
•
design, specification and test of an integrated remotely accessible system to
monitor and control the radiofrequency spectrum in Madeira for Autoridade
Nacional de Comunicações (ANACOM).
Signal processing is constantly present in modern instrumentation and measuring
systems. As in the past, techniques such as neural networks, self-organizing maps,
fuzzy logic, wavelets, genetic algorithms and data fusion have been used to digitally
process sensors’ output data for accuracy improvement, data representation
classification and forecasting purposes. Examples of the use of wavelets are for
characterization and optimization of encoders based systems and for detection and
classification of disturbances in a single-phase power system.
Finally, it is worth mentioning that in 2007 the Instrumentation and Measurement
Group concluded an FCT funded re-equipment project.
Power Electronics
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.
ACTIVE POWER FILTERS AND POWER FACTOR COMPENSATION
Study
and
characterisation
of
new
topologies.
Study,
development
and
experimental realization of a hybrid active power filter with optimization of the
power inverter. Study, development and experimental realization of single stage
power factor correctors topologies and control processes.
RESONANT CONTACTLESS ENERGY TRANSFER
Experimental characterization and modelling of a high efficient series-loaded series
resonant converter for contactless energy transmission.
SWITCHING CONVERTERS FOR RENEWABLE ENERGY RESOURCES
277
Theoretical study and experimental realization of two power converters with double
current mode control, for interface between the ac mains and a Photo Voltaic Panel.
COLABORATION WITH RMOM CIRCUITS AND SYSTEMS GROUP ON INTEGRATION
IN CMOS TECHNOLOGY
Continuation of research, development and practical implementation of very high
frequency high performance DC-DC converters in CMOS technology for power
management RF-CMOS ,“System On a Chip (SoC)”. Design of three 100MHz buck
converters was accomplished.
COLABORATION WITH INESC AND CHIPIDEA
Development and design of a new PMOS LDO voltage regulator intended for small
analogue cores (SMIC 0.13 um CMOS technology).
Applied Mathematics
In recent years, research in Applied Mathematics has been developed in the
following three important fields:
i) Optimization.
ii) Numerical Linear Algebra.
iii) Partial Differential Equations.
Apart from some more theoretical oriented studies, the work has mainly been
focused on the design, convergence analyses, implementation and testing of
algorithms for the solution of many important problems in these areas.
Collaboration with researchers in other areas was continued in the design and
solution of some models of engineering and finance.
The most relevant topics are presented below:
1. Numerical Linear Algebra: Preconditioning and convergence of iterative methods
for the solution of linear systems of equations.
2. Complementarity Problems: design, implementation, convergence analyses and
testing of interior-point algorithms, active-set methods, sequential quadratic
algorithms and enumerative methods.
3. Global Optimization: complementarity algorithms, positive semi-definite and
reformulation-linearization techniques for bilevel programming, quadratic and
bilinear
programming
and
mathematical
programs
with
complementarity
constraints.
278
4. Discrete Optimization: global optimization algorithms for linear, nonlinear and
complementarity problems with integer variables.
5. Solution of Structured Optimization Models, namely finance portfolio selection
models, network models, eigencomplementarity problems and other engineering
models.
6. Solution of Partial Differential Equations associated with contact problems and
other variational models in engineering.
7. Design and solution of models of filtering and other areas in telecommunications.
Logic and Computation
During the year of 2006, research in Logic and Computation has been developed in
the following fronts:
i) Logics for reasoning about quantum and stochastic systems
ii) Combination of logics
iii) Computation in continuous time systems
Logics for reasoning about quantum and stochastic systems
Completeness and decidability results were obtained for several exogenous
extensions of classical propositional logic, as well as for Hoare calculi over
probabilistic programs using the previous logics as state logics. Some preliminary
results were obtained towards similar results for quantum first-order logic and
Hoare calculi over quantum programs. Temporal extensions of exogenous logics
were also proposed and their model-checking problem was analysed.
An institution-theoretical account was given of the exogenous approach to enriching
logics that provided insight on current limitations and future development of the
exogenous semantics idea.
Completeness
and
semi-decidability
results
were
established
for
a
measuretheoretical semantics of the almost-everywhere quantification, having in
mind future work on kleistic logic.
Combination of Logics
A research survey book on the theory and applications of fibring of logics was
concluded. Preliminary work was carried out towards a truly universal mechanism
279
for combining logics, encompassing even substructural and non truth-functional
logics.
Computation in continuous time systems
The research carried aimed, broadly, to pursue the investigation of the connections
among
different
computation
models.
In
particular,
polynomial
differential
equations and algebras of real recursive functions closed under linear differential
equations have been studied. For the first case, the computational universality of
polynomial differential equations has been shown, and the equivalence with
recursive analysis, under a given framework, has been proved. For the second
case, new inductive techniques to establish links among function algebras on the
integers, the rationals, and the reals have been developedRunning and Concluded
Projects.
280
4.4.4
Overview
Funding Agency
Numbe
Ciência Viva
1
Internal
2
DSIC/ Ministerio de Education y Ciencia Espanhol
1
EU, IST Programme
1
EU,TOK-IAP
1
FCT/POCI
5
FCT/POCTI
1
FCT/POSC
4
FCT/PTDC
10
ICP/ANACOM
1
IT/LA
6
TOTAL
33
Table 33 – Number of active projects running in the Basic Sciences and Enabling
Technologies Area
281
Activity in projects
Acron / Ref
Title
GOA / CV-1572-2006
Listening Dolphins and Measuring the Water Quality where they
Live
Funding
Ciência Viva
Descript.
The project main objective is to promote new connections between
National Research Institutes, such as Instituto de Telecomunicações
and the research units of the Portuguese Polytechnic Schools and
groups of professor and students from Secondary Schools in the
area of interdisciplinary research of environment monitoring.
Considering that a bottlenose dolphin community is localized in the
Sado Estuary the project propose an interdisciplinary research
associated with dolphin behavior monitoring through underwater
sounds acquisition and processing and at the same time the
monitoring of the water quality in Sado Estuary in order to obtain
correlations
between
the
dolphin
life
behavior
an
aquatic
environment conditions. An important component of the project is
to realize multimedia presentation related to the systems for
dolphin and water quality monitoring and the experimental data
obtained during the field monitoring session or obtained in the
laboratory conditions.
Acron / Ref
EUPAS
Title
EUropean Project for ADC-based devices Standardization
Funding
Internal
Descript.
European Network including 10 Universities and Research centres
and 5 Industrial partners.
282
Description: The aim of this project is to contribute to the
improvement of the European rules concerning the test methods for
analog-to-digital converters and sample-and-hold circuits, with
emphasis on their dynamic behavior. During 2003, new test
methods
to
circumvent
the
limits
of
the
measurement
instrumentation, to measure particular parameters required for
specific applications and to diagnose problems in new converter
designs will be investigated and proposed.
Acron / Ref
CAR
Title
Vehicular Electronics
Funding
Internal
Descript.
Power electronics for vehicles; drives for electric vehicles; power
conversion in ICE vehicles; new applications of power electronics
Acron / Ref
Title
NORIT / CTM2005-02034/MAR
Incidence of Norway lobster emergence activity rythms on its
populations assessment
Funding
DSIC/ Ministerio de Education y Ciencia Espanhol
Descript.
The final objectiveof this project is to measure, and to quantify, the
emergence rhythms of the Norway lobster (Nephrops norvegicus L.)
for the different parts of its population, in response to different
environemental variables, and thus obtaining a database for a more
precise evaluation of this resource.
283
Acron / Ref
Title
POLYCOM
Plastic Optical Fibers with Embedded Active Polymers for Data
Communications
Funding
EU,IST Programme
Descript.
Development of low-loss polymer optical fibers and waveguides
with integrated gain and ultrafast optical switching functionalities.
The work to be carried out by IT researchers (under the contract
signed by Instituto Superior Tecnico) involves the synthesis of novel
conjugated luminescent polymers to be dispersed in Plastic Optical
Fibers (POFs) matrices (e.g. PMMA). The development of low loss
POFs matrices is also part of IT contribution
Acron / Ref
Title
PREMAID
Design of Railway Power Trains for Better Reliability and Easier
Maintenance - Predictive Maintenance
Funding
EU,TOK-IAP
Descript.
The main objective of this project is to minimize the impact of the
component
and/or
the
system
aging
(conducting
to
component/system failure) on the commercial use of the trains and
therefore allowing higher availability of the traction system. The
availability of the equipment is limited by their downtime for
maintenance operations.
284
Acron / Ref
ORAL / POCI/MAT/56727/2004
Title
Alocação Óptima de Recursos
Funding
FCT/POCI
Descript.
This project intends to optimize several video encoding parameters.
Although we focus on ITU-T H.264/MPEG-4 AVC standard as a
reference to formulate the problems, all the optimization solutions
to be investigated have a more general application. As it is well
known, a standard like H.264 is a compilation of the most
sophisticated algorithms. Despite each of them by itself is qualified
as of a high performance, their combination may result in a poor
system. For instance, a standard could provide either less or better
performance in some circumstances like constant/variable bit rate
(BR), low/high BR, low/high resolution, low/high scalability,
good/bad channel, low/high delay, etc. Therefore, parameter tuning
is of crucial importance to adapt the standard to any of those
conditions. Moreover, in general, when a new standard is issued, it
provides a worse performance than any previous one since it lacks
optimization. This is the case of H.264, a recent ITU/MPEG standard
with some profiles still to be approved. As the history showed, we
then expect, in the ORAL framework, to contribute to improve H.264
performance significantly. The main motivation to embrace this
proposed research is to join, in a fruitful manner, scientists from
mathematics and communications to solve multidimensional telecom
problems. The optimization problems to be processed are largescale and involve constraints. Furthermore, interpolation, stability,
existence, achievability and convergence rate are critical
mathematical concepts that are fundamental in this research. Let
Xijk be a random process defining an original sample (image pixel)
at spatio-temporal position i,j,k of video sequence length T and
image resolution NxM.
We intend to propose new mathematical methods for those specific
problems in order to achieve optimal and sub-optimal solutions with
285
as low computational complexity as possible. These new
methodologies are to be compared with other solution methods that
have been published in the literature.
Acron / Ref
Title
Conjugated polymers and copolymers
POCI/QUI/58291/2004
End-capped
conjugated
polymers
and
copolymers
for
device
applications
Funding
FCT/POCI
Descript.
The objectives are to synthesise and fully characterise in terms of
photophysical
properties
and
chemical
stability
a
series
of
polyfluorenes, poly(p-phenylene vinylenes) and related copolymers
with hole trapping or blocking, electron trapping and luminescent
end-groups for potential applications in LEDs. The best candidates
will be used for device fabrication and the current-voltage and
luminance-voltage characteristics studied.
Acron / Ref
Conducting polymers / POCI/CTM/58767/2004
Title
Photovoltaic cells based on conducting polymers and anthocyanins
Funding
FCT/POCI
Descript.
The main goal of this project is the development of active layers
made of conjugated polymers and anthocyanin dyes for the
fabrication of efficient photovoltaic cells. In order to achieve this
main goal, the partial objectives to be attain are:
i) selection of electron donor (conjugated polymer) – electron
acceptor (anthocyanin) pairs showing efficient charge transfer in
the excited state.
286
ii) optimisation of the conjugated polymers-anthocyanin composites
in terms of composition and film morphology with a view to
maximise the photoinduced charge transfer,
iii) fabrication of photovoltaic cells based on such composites, with
an assessment of the charge transport efficiency;
iv) synthesis of double cables made of conjugated polymers main
chain with anthocyanin side groups and comparison of their
photophysics with that of the corresponding composites;
v) fabrication of photovoltaic cells based on such double cable
systems;
vi) Assessment of the relative performance of PVs based on the two
approaches: composites vs doubel cable.
Acron / Ref
GEM / POCI/CTE-AST/57209/2004
Title
Galactic Emission Mapping
Funding
FCT/POCI
Descript.
1st Phase of the Galactic Emission Mapping Project at Portugal
-Develop a polarimeter/correlator to detect and map the polarized
microwave emission from the Milky Way (
-Use of novel design for a base-band complex I/Q digital correlator
based on progammable logic devices (Altera FPGA chip).
-Installation of the polarimeter in C-band cassegrain antenna (9-m)
for a 1yr observation.
- merge the North Hemsiphere maps with South Hemisphere map
form Brazil and produce the biggest high sensitivity quasi all-sky
map at C-band.
-Feed these maps into Principle Component Separation algorythms
in Data processing Pipeline of the Planck surveyor satellite (ESA,
287
2008) for microwave decontamination.
Acron / Ref
QuanLog / POCI/MAT/55796/2004
Title
Logic in Quantum Computation and Information
Funding
FCT/POCI
Descript.
The main goal of the project is to address and solve some of the
many challenging open theoretical problems in the area, as well as
to explore some important applications. Significant original results
are expected in several aspects of the theory, such as: quantum
walks
of
entangled
particles,
quantum
algorithms
in
logic,
categories of quantum automata and monads, exogenous quantum
logic as a combination of logics, compositional analysis of quantum
cryptosystems and security protocols.
Acron / Ref
Title
NECTDiMe / POCTI/ESE/46995/2002
New
error
correction
techniques
for
digital
measurement
instruments
Funding
FCT/POCTI
Descript.
Nowadays nearly all measurements of every quantity are carried
out through digital measuring systems. These are usually composed
by one or more sensors, signal conditioning circuits, analog to
digital converters (ADCs) and computers or microprocessors, where
digital signal processing is performed to extract the relevant
information from the ADC output codes.
The accuracy of these measurement instruments is strongly
dependent on the quality of calibration techniques and signal
processing algorithms. When the systematic errors are time
288
invariant, they can be characterized during a calibration process
and mathematically removed during the measurement procedure.
One of the key components in modern measuring systems is the
Analog-to-Digital Converter. Their performance has a determinant
impact on the performance of digital instruments, and on the
quality
of
the
measurement
systems.
Traditionally,
digital
instruments are designed by considering ADCs as ideal components
affected only by sampling and quantization errors. Unfortunately,
actual errors in ADCs transfer function, strongly affect the overall
accuracy and bandwidth of the systems where they are included.
To implement powerful calibration techniques the behavior of ADCs
has to be well described. Dynamic characterization of ADCs is
usually performed by the code density histogram, DFT or sinefitting tests, in which the participants in this project have ample
knowledge and internationally published work.
In this project, we propose to apply our experience on ADC testing
and use signal processing techniques to built high accuracy digital
measurement systems. We will demonstrate these techniques by
implementing an impedance meter and by performing error
correction in the results of an electrocardiograph. Simultaneously
high frequency ADC testing techniques will be improved.
The impedance measurement system will be based on the use of
ADCs
included
in
general-purpose
digitizers
and
sine-fitting
techniques. The system will perform from DC to tens of MHz.
Calibration techniques will remove the influence of systematic
errors. They will be based on a complete characterization of the
digitizing channels and implementation of the corresponding error
correction. The unavoidable influence of noise in any experimental
setup will be reduced by the use of sine-fitting techniques. This will
allow the construction of high accuracy, but not expensive
instruments. Preliminary results already obtained by using a
medium cost 12 bit PC data acquisition boards show that the
technique is very powerful and can lead to measurement accuracy
289
comparable with that obtained by sophisticated very high cost
dedicated impedance measurement equipment. The first results for
impedances with magnitudes and phases near 300ohm and 45º
shown standard deviations close to 0.01ohm and 0.01º.
Similar
techniques
will
be
used
to
remove
the
power-line
interference in electrocardiogram results. Sine-fitting or frequency
domain techniques (IpDFT) will be used.
Acron / Ref
Title
Powerquality / POSC/EEA-ESE/57708/2004
Fast and accurate power quality measurements using analog to
digital converters and digital signal processing techniques
Funding
FCT/POSC
Descript.
The objective of this project is: (i) to study and develop new digital
signal processing algorithms for power quality analyzers; (ii) to
develop the interface to the ADCs with signal conditioning electronic
circuitry. All system components will be metrologically characterized
with special emphasis on the ADCs. Development and testing of the
algorithms will be implemented on PCs. Afterward a analysis will be
performed as to their adaptability to fit the limitations of a DSP
based portable instrument.
Acron / Ref
Title
EVOLUTION / POSC/EEA/60225/2004
Exploring Evolutionary Computation to Enhance Analog IC Design
Automation Methodologies
Funding
FCT/POSC
Descript.
The main objective of EVOLUTION project proposal consists of
applying evolutionary computation techniques to achieve the
290
optimal analog circuit and system design solution. In order to fulfill
the main objective two other goals should be accomplished, first,
the evolutionary computation features should be used to develop an
autonomous mechanism capable of conducting the search for the
optimal solution, second, new modeling techniques should be
investigated to generate adaptive circuit and system models to both
reduce the cost function evaluation and, also, to allow different
levels
of
accuracy,
during
the
optimization
process.
The
achievement of these goals should allow an enhancement on the
design cycle automation. The resulting design automation system
and the expected improvement in design productivity will be
demonstrated for both circuit and system designs.
Acron / Ref
Title
TIM / POSC/EEA-ESE/60397/2004
Magnetic
Induction
Tomography
-
Development
of
the
instrumentation and measuring methods for biomedical applications.
Funding
FCT/POSC
Descript.
The aim of the project is to assess the use of Magnetic Induction
Tomography (MIT) as a means to measure relevant biomedical
information, and specifically to evaluate its applicability in the
measurement of impedance plethysmography (change of tissue
volumes in the body), cardiac activity through impedance cardiology
(ICG) and spatial localization of malignant tumors. To this end our
intent is to develop new approaches to the solution of the direct and
inverse problems, design a multifrequency and multisensor MIT
device, evaluate the optimal excitation pattern, develop new image
reconstruction algorithms, evaluate the safety operation constraints
regarding
the
use
of
a
MIT
device
on
living
tissue
and
experimentally assess the viability of the MIT technology for
impedance plethysmography, ICG and tumor location.
291
Acron / Ref
Title
IMPANA / PTDC/EEA-ELC/72875/2006
Development and implementation of an impedance analyzer based
on analog to digital conversion and powerful signal processing
algorithms
Funding
FCT/PTDC
Descript.
The research team’s expertise in test and characterization of analog
to digital converters, signal processing algorithms, power quality
measurements, development of modern digital instrumentation and
impedance measurements will be used in the development and
implementation of an inexpensive accurate impedance analyzer to
operate in the frequency range from 10 Hz up to 1 MHz.
Following
the
team’s
previous
work,
a
instrument
prototype
including all the system electronics and the software will be built.
The device is based on the traditional I-V method coupled with
analog to digital conversion and signal processing algorithms to be
executed in the prototype digital signal processor. The algorithms to
be implemented will determine the parameters of the sine signals
that best fit the acquired samples of two channels and thus estimate
the unknown impedance parameters.
The accuracy of the final instrument will depend on the project
progress but basic accuracies of 0.1% for the impedance magnitude
and 0.01º for the phase or better are expected.
Acron / Ref
MATRIX / PTDC/EEA-ENE/67350/2006
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
292
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
combines
the
advantages of the matrix converter with the high reliability granted
by the integrated and fault-tolerant diagnostic/control system.
Acron / Ref
BE_NT_REG / PTDC/EEA-ENE/66859/2006
Title
Electronic Ballasts: a new dimming technology
Funding
FCT/PTDC
Descript.
To develop new techniques for the regulation of the luminous flux of
fluorescent lamps.
Acron / Ref
CRACK / PTDC/EEA-ELC/67719/2006
Title
Flaw Imaging in Metals by Contactless Conductivity
Funding
FCT/PTDC
Descript.
The measuring principle is based on the phenomenon whereby the
impedance of a coil generating a time-varying magnetic field
changes in the presence of a conductive material as eddy currents
293
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
294
real scenario. Since the signal from a deeper voxel is smaller than
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
InADC / PTDC/EEA-ELC/68843/2006
Title
InADC-In depth analysis of analog to digital converter methods
Funding
FCT/PTDC
Descript.
The main goal of this research project is the advancement of the
knowledge in the area of analogue to digital
converter
testing.
We
propose
the
pursuit
of
the
following
objectives:
a) Study of the precision of Independently based Gain and Offset
Error;
b) Development of a Weighted Least Squares Estimator for gain and
offset error estimation;
c) Study of the influence of additive noise in the bias of ADC gain
and offset error estimation;
d) Study of the use of sinusoidal stimulus signals instead of
triangular stimulus signal as suggested in the IEEE
295
1057-94 standard procedure for ADC random noise estimation;
e) Derivation of an exact estimator for ADC random noise
estimation;
f) Study of the influence of sinusoidal amplitude and offset on the
bias and precision of the estimation of the fitted
sine wave parameters;
g) Derivation of an expression for the minimum number of samples
required to achieve a given upper bound on the
estimation bias and precision;
h) Study of the precision of novel sine-fitting algorithms used in
impedance measurement
Acron / Ref
Title
SPEED / PTDC/EEA-ELC/66857/2006
Low Power Ultra-High Speed Analogue-to-Digital Converter for
Ultra-Wideband Wireless Communications
Funding
FCT/PTDC
Descript.
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.
296
Acron / Ref
GEM – 2 / PTDC/CTE-AST/65925/2006
Title
Polarimetry Instrumentation for a Galactic Survey at 2.3-10GHz
Funding
FCT/PTDC
Descript.
2nd Phase of the International Galactic Emission Mapping at
Portugal.
- test and installation of the 2.3GHz total power radiometer
assembled in Brazil (by Marco bersannelli, Deputy-PI of Planck
Surveyor sattellite) to complete the 2.3 GHz North Hemisphere
survey in S-band
- Calibration with cold load/hot load of the C-band correlator;
calibration and first-light fo the polarimeter receiver.
Overal: production of the first digital complex base-band crosscorrellator using FPGA chips applyed to radioastronomy surveys.
Acron / Ref
Title
ARCOCELL / PTDC/CTM/64127/2006
Specially
Designed
Materials
and
Architectures
for
Organic
Photovoltaic Cells
Funding
FCT/PTDC
Descript.
The overall objective of the project is the development of new
conjugated
polymers
and
strategies
to
optimise
the
texture/morphology of electron-donor/electron-acceptor systems to
prepare organic photovoltaic cells with improved efficiencies.
In order to achieve this goal, several approaches are going to be
carried out, namely:
i) combine donor and acceptor blocks in single chains linked by
saturated bridges to create abrupt D/A interfaces and to obtain
films
with
controlled
morphologies
adequate
to
favor
photovoltaic phenomena in the device structure;
297
the
ii) ) use of adequate substituents to modify the donor and acceptor
units to optimise their electron affinity or ionisation potential and to
control their supramolecular arrangement;
iii) synthesis of donor and acceptor crosslinkable polymers to
prepare segregated D/A columnar-like domains, at the micro- or
submicrometer dimensions, by exploring a new method using the
inherent tendency of polymer blends to phase segregation;
iv) exploring the use of crosslinkable polymers to fabricate
multilayer device structures, in particular tandem cells.
The photophysical study of the new materials prepared under the
project will also be performed (luminescent properties) in order to
establish structure - fundamental properties relevant to the design
of optimal structures with photovoltaic effect.
Acron / Ref
UNIME / PTDC/FIS/72831/2006
Title
UNIME-Unimolecular Electronics
Funding
FCT/PTDC
Descript.
The project aims at:
i) the design and and synthesis of conjugated oligomers to act as
molecular wires or molecular rectifiers;
ii) address individual molecular wires and rectifiers and measure
their current-voltage characteristics;
iii) the study of the assembly of these two-terminal devices on
specific surfaces.
298
Acron / Ref
Title
VIDAS / PTDC/EEA-TEL/75217/2006
VIsible
light
communications
for
advanced
Driver
Assistance
Systems
Funding
FCT/PTDC
Descript.
systems using white and coloured LEDs commonly used in outdoor
traffic lighting scenarios (namely, vehicle and traffic lights). To
achieve this target, several research issues must be addressed:
- To characterise the outdoor optical communication channel
through field measurements, including signal (LEDs) and noise
sources.
- To develop theoretical models of the outdoor visible-light
communication channel (emitter, propagation, receiver and noise
sources).
- To analyse adequate modulation schemes adjusted for outdoor
visible-light communication systems.
- To develop a system design for traffic scenarios.
- To develop an experimental prototype in order to demonstrate the
utilisation of visible light in transmission systems for outdoor
applications.
Main project results will be presented in targeted scientific
conferences and journals and exploited to create synergies with
other European partners.
Acron / Ref
ESPECTRO
Title
Spectrum Monitorization and Control. Integration of Infrastructures
Funding
ICP/ANACOM
Descript.
The purpose of this project is to automate the measuring
299
procedures used in the different Monitoring Centers of ANACOM
(Portuguese Telecommunications Regulator) to monitor and control
the
radiofrequency
spectrum
in
Portuguese
territory.
The
automation must allow remote operation, that is to say, to perform
tests for instance in Azores from another Center, namely the main
one sited in Barcarena.
Acron / Ref
LAYGEN / IT/LA346/2006
Title
Automatic Layout Generation of Mixed-Signal ICs
Funding
IT/LA
Descript.
The main goal of the LAYGEN project is to explore and apply new
computation paradigms, to the automatic layout generation of high
performance analog circuits and systems, aiming at improving the
design efficiency by reducing both the design cycle time and the
required manpower. In order to achieve the proposed goal, a joined
expertise, from project team members on both high performance
analog layout design and design automation methodologies, will be
considered to coordinate the work and guarantee that a state-ofthe-art solution is produced by combining the design knowledge,
e.g., placement and routing techniques, technological constraints,
heuristic knowledge, etc., and new computation paradigms, e.g.,
evolutionary computation techniques to explore the solution search
space, soft computing techniques to represent design knowledge
and infer additional rules, etc.
Acron / Ref
DICSAP/WCA / IT/LA/298/2005
Title
Automatic Layout Generation of Mixed-Signal ICs
Funding
IT/LA
300
Descript.
The target of the present project is to develop, implement and
characterize two stand-alone prototypes for conductivity monitoring
of water mainly in estuary rivers. As multipoint network is of
paramount importance in water quality assessment and the sensor
plays a very important role in the measurement system, the goal of
this work is focused in low-cost effective solutions instead of
commercially available conductivity sensors. One of the prototypes
is based on a four-electrode conductivity sensor and the other on
an inductive conductivity sensor.
Acron / Ref
PLASTIC / IT/LA/297/2005
Title
Fully Patterned all Plastic Integrated Circuits
Funding
IT/LA
Descript.
Demonstration of the possibility of fully pattern all components of
all polymeric integrated circuits, namely source, drain and gate
contacts, dielectric and polymer channel of individual transistors. At
the end of the project a fully patterned inverter, on a flexible
substrate, will be delivered as a demonstrator.
Acron / Ref
Title
ADCPN / IT/LA/295/2005
Influence
of
Phase
Noise
and
Jitter
in
the
testing
of
telecommunication ADCs.
Funding
IT/LA
Descript.
Today’s telecommunications are essentially digital because of its
advantages in term of speed, versatility and robustness. To
implement a digital communication channel is fundamental the use
of analog to digital and digital to analog converters. The main goal
is to have higher bandwidths necessary, for instance, to have faster
computer networks or new services in mobile phones, like video or
301
broadband internet. To achieve this, analog to digital converters
(ADCs) are constantly being improved and their capacity pushed to
the limit. One factor that affects ADC performance is the presence
of phase noise in the analog signals being converted, due, for
instance, to the use of higher frequency local oscillators, and the
presence of jitter in the sampling of the analog signal required to
convert it to digital. Both of theses phenomena, which generally can
be studied together, affect the behavior of the ADC. In this project
we propose to study the influence of phase noise and jitter in the
results of ADC testing. It’s influence on those results depends on
the test method chosen. Two of the methods we propose to study
are the Histogram Method and the DFT Method. The first one is
used to determine the ADC transfer function, integral non linearity
(INL), differential nonlinearity (DNL), gain error and offset error.
The second one, the DFT Method, is used to determine ADC signal
to noise and distortion ratio (SINAD), total harmonic distortion
(THD), noise and effective number of bits (ENOB).
Acron / Ref
Title
PQM/ADC/DSP / IT/LA/318/2005
Power quality measurements using analog to digital converters and
digital signal processing techniques
Funding
IT/LA
Descript.
The objective of this project is to study, develop and implement
new digital signal processing techniques to be used in power quality
measurement instruments based on analog to digital converters
and digital signal processors. Digital signal processing algorithms
are fundamental as they can produce very accurate results and are
a flexible component of instruments which can be upgraded and
improved without the need for expensive and time consuming
hardware re-designing. There is no single algorithm that can detect
the variety of power quality anomalies. Instead, a set of algorithms
is need, where each one is responsible for detection of a set of
302
disturbances.
Acron / Ref
Title
SMARDO / IT/LA/323/2005
Smart System for Monitoring of Wild Dolphin – Antropogenic
Factors Interactions
Funding
IT/LA
Descript.
1. Study, development, implementation and testing of different
systems to track dolphins.
2. Development and implementation of a distributed monitoring
system for the acquisition and recording of wide-band acoustic
signals (up to 200 kHz) associated with both wild dolphins’
community and anthropogenic underwater noise.
3. Evaluation of water parameters that affect dolphins’ behaviour
and deployment of units to measure and remotely transmit the
values of those parameters using solutions already developed by
some of team’s members in the context of FCT project Global
Monitoring Based on Smart Sensors for Environment Quality.
4. Design and implementation of advanced techniques to analyse
the data acquired by the hydrophones using namely time-frequency
and neural networks based techniques in order to filter, compress,
fuse, and classify the patterns of the acoustic signals and water
quality parameters’ values.
5. Creation of a SMARDO Web site where projects’ results are
published and through which team’s obtained experimental data
can be accessed by the national and international community.
303
4.4.5
Final Year Projects
Supervisor
Raúl Martins
Raúl Martins
Student
João Branco da
Silva
Armando
Granate
Fernandes
Raúl Martins
Luís Matos
Raúl Martins
Paulo Proença e
Pedro Ferreira
Paul Andrew
Crocker
Rui Inácia
Jorge Manuel Daniel Jorge
Correia
Pereira Isidro
Guilherme
Sérgio Cruz
Tiago Martins
Fernandes
Octavian
Postolache
Eduardo
Pinheiro
Sérgio Cruz
Sérgio Cruz
CoSupervisors
Jorge Manuel
Correia
Guilherme,
Determinação de REM por
análise de miograma ocular
1/
2007
Processamento de sinal para
detecção de fase REM
Correcção da Característica
de Sensores em Sistemas de
Monitorização da Qualidade
da Água
1/
2007
SCORM and E-Leanring
Platforms
6/
2007
6/
2007
7/
CONVERSOR DC-DC PARA
APLICAÇÕES AEROESPACIAIS 2007
Development of new
techniques for the evaluation
of the stator winding
insulation degradation in
adjustable speed drives
Human Vital Signals
Monitoring based on
biopotential and
bioimpedance measurements
Luis Manuel
Barros Miguel e
João Paulo de
Jesus Araújo
Pinto
Susana
Gonçalves
Cardoso e Marco
Alexandre Neves
Ferreira
Jorge Manuel
Correia
Mauro Santos
Guilherme
Determinação de REM por
análise de miograma facial
End
Date
1/
2007
Title
7/
2007
7/
2007
Self-commissioning of electric 7 /
drives
2007
Simulation of an induction
7/
motor drive based on matrix
2007
converters
Jorge Manuel
Correia
Guilherme,
Space DC-DC converters
7/
2007
304
Supervisor
CoSupervisors
Student
Octavian
Postolache
Matco Crespo
António
Cardoso
Jorge Oliveira
Estima
Title
Water Quality monitoring
system based on
microcontroller associated
with Dolphin Habitat life
conditions
Diagnostics and Fault
Analysis of Permanent
Magnet Synchronous Motors
Emílio António
Eduardo de
de Carvalho
Sousa Saraiva Ferreira Lima
Benrós
Elevadores
Beatriz Borges
Tiago Silva
João Santos
Francisco
Alegria
Pedro Pedroso
Octavian
Postolache
Jose Santos
Nuno Horta
Marco Lourenço
Flyback Converter for
Interface with Photovoltaic
Cells
Educational Platform for the
Teachng of Phase Locked
Loops
Underwater acoustic sounds
monitoring using distributed
measuring system - Acoustic
module development
VIANET III: Sistema
Inteligente de Tutoria para
Ambiente de E-Learning
End
Date
7/
2007
9/
2007
9/
2007
10 /
2007
11 /
2007
11 /
2007
3/
2008
Table 34 – List of Final Year Projects running in the Basic Sciences and Enabling Technologies
Area during 2007
MSc Theses
Supervisor
Student
CoSupervisors
David Paulo
Dinis Magalhães
Torres
Santos
Macário
Francisco
Alegria
Jorge Manuel
Correia
Guilherme
Maria Manuela
Areias da Costa
Pereira de
Sousa
José Lopes
Artur Jorge
de Castro
Silva
Richard
Guise
Jorge Manuel
Correia
Guilherme,
Title
End
Date
Utilização de SAW's como
sensores e identificadores
5/
2007
Automatization of the control
procedre of a particle
acelerator
A Reconfigurable A/D
Converter for 4G Wireless
Systems
Análise de Imagens Médicas
para o Diagnóstico do Cancro
da Mama
6/
2007
7/
2007
7/
2007
305
Supervisor
Student
CoSupervisors
José Miguel
Dinis Magalhães
da Silva
Santos
Bergano
Hugo Ribeiro Beatriz Borges,
Nuno Horta
Artur Silva
Beatriz Borges
Alexandre
Neves
Nuno Horta
Nuno
Lourenço
Raúl Martins
Pedro Silva
Girão
Rui L. Aguiar
Helena Ramos
Pedro Ramos
Raúl Martins
Pedro Ramos
Nuno Horta
Nuno Horta
Pedro Ramos
Manuel
Ferreira
Ismael
Everardo
Bárcenas
Patiño
João Silva
Branco
Nuno Gueiral
Bruno
Marques
Mário Jorge
Alves
Pedro
Rodrigues
Miguel
António
Felizardo da
Costa
Sérgio
Ramalho
Marco Carola
António
Proença
Marcio
Cabral
End
Date
Instrumentação para Medidas 7 /
Polarimétricas em Microondas 2007
António Victor
Anunciada
António Victor
Anunciada
João Filipe
Quintas dos
Santos Rasga
Title
Jorge Manuel
Correia
Guilherme,
Monitorização de Qualidade de 7 /
Energia
2007
Power Quality Disturbances in
Telecom Plants
Conversores A/D
Reconfiguráveis para a 4G de
Sistemas de Telecomunicações
Low Dropout Capless Voltage
regulator for supplying small
analogue cores
LAYGEN: Gerador de Layout
com Recurso a Técnicas de
Computação Evolutiva
A Proof Theory of Interpolation
Teresa Paiva,
7/
2007
10 /
2007
10 /
2007
11 /
2007
12 /
2007
Acquisition System for
12 /
Automatic Sleep Identification 2007
Ensaio de Próteses Utilizando
12 /
Sensores Acústicos
2007
Inteligentes
Interligação de sistemas IP em 12 /
redes SDH
2007
Plataforma Aberta para
12 /
Sensores Inteligentes
2007
Satellite attitude determination
1/
with an optical position sensing
2008
detector
Superheated Droplet Detectors
2/
Neutron Dosimetry
2008
Instrumentation
Conductivity Sensor with
3/
Wireless Transmission
2008
Optimização de Estratégias de
Combate a Incêndios Florestais 3 /
2008
utilizando Técnicas de
Computação Natural
PLASTIC: Projecto de Circuitos 3 /
Integrados Orgânicos
2008
Reaction Wheel for Satelite - 3 /
SSETI project from ESA
2008
306
Supervisor
Luis Nero Alves
Rui L. Aguiar
Student
Milton
Cunguara
Tiago
Campos
CoSupervisors
José Cura,
Luis Nero Alves
João Tiago
Araujo
Raúl Martins
Cristiano
Tavares
Luís Carvalho,
Raúl Martins
Bruno Gil
Teresa Paiva,
Nuno Horta
António
Ribeiro
Rui Neves,
Beatriz Borges
Marco
Caracinha
Pedro Santos,
Beatriz Borges
Leandro
Alberto
Pedro Santos,
Nuno Horta
Nuno Lopes
R. Neves,
Nuno Horta
Ricardo
Gama
Rui Neves,
Nuno Horta
Daniel
Machado
Nuno Horta
Pedro
Ferreira
Sérgio Cruz
Paulo André
Henriques
Vitorino
Nuno Horta
Nuno Horta
Nuno Horta
Jorge Manuel
Correia
Guilherme,
Jorge Manuel
Correia
Guilherme,
Jorge Manuel
Carla Duarte Correia
Guilherme,
Jorge Manuel
José Teixeira Correia
Guilherme,
Márcio
Correia
End
Date
6/
Analog CMOS 130nm
2008
Desenvolvimento de Sistemas 6 /
de Media Gateway de Acesso 2008
Impacto do scaling nas
6/
técnicas de desenho de
2008
circuitos digitais em CMOS
Pacemaker para indução de
6/
arritmias e fibrilação
2008
auriculares em ratos
WSN in polisomnographic
6/
applications
2008
7/
ADC de alta resolução
2008
Capless Voltage Regulator for
7/
Supplying Small Digital Cores
2008
for SOC
CMOS technology monolithic
7/
integration of a switched DC2008
DC converter
COIN: Computação Inteligente
7/
aplicada à Gestão de Fundos
2008
de Investimento
Conversor Analogico Digital de
7/
Baixa Potência de Muito Alta
2008
Velocidade
Conversores A/D
7/
2008
Terminais Móveis - I
Conversores A/D
7/
2008
Terminais Móveis - II
Electric drives based on
7/
induction motors, with
regeneration capability and low 2008
harmonic pollution
EVOLUTION III: Optimização
7/
Inteligente de Circuitos e
2008
Sistemas Integrados
LAYGEN II: Geração
7/
Automática de Layouts de
2008
Circuitos Integrados
MEEC08: Projecto de
Microprocessador
7/
Reconfigurável para fins
2008
Didácticos
Title
307
Supervisor
Student
CoSupervisors
Nuno Horta
Pedro Sousa
Nuno Horta
Tiago Costa R. Neves,
Jorge Manuel
Filipe Pereira Correia
Guilherme
Moisés
Eduardo de
Augusto
Sousa Saraiva
Martins
Eunice de
Fátima
António Cardoso
Fragoso
Ribeiro
André Manuel
João André
dos Santos
Antunes
Mendes
Caseiro
André Manuel
Marco
dos Santos
António Dias
Mendes
Tibério
Ângelo Filipe
Beatriz Borges Rolo
Monteiro
André Manuel
Eduardo de
Tony dos
dos Santos
Sousa Saraiva Santos Alves
Mendes,
Rui Manuel
Moisés Simões
Beatriz Borges Rodrigues
Piedade
Machado
Raúl Miguel
Moisés Simões
Beatriz Borges Macedo da
Piedade
Silva
Nuno Miguel
Beatriz Borges Nogueira
Pedro Santos
Dias
Carlos
Manuel
António Cardoso
Cordeiro
Duarte
Francisco
Beatriz Borges
Nunes
Nuno Horta
Beatriz Borges
Luis Arez
Title
Modelação Inteligente de
Circuitos e Sistemas
Integrados Analógicos com
Recurso a Sistemas Difusos
Moduladores Delta-Sigma
optimizados em área e
consumo para aplicações de
voz e audio
Projecto de Emissor/Receptor
para a 4G de Terminais Móveis
- RF
End
Date
7/
2008
7/
2008
7/
2008
Balastros electrónicos para
lâmpadas fluorescentes
9/
2008
Fault Diagnosis in
Telecommunications Energy
Systems
9/
2008
Performance analysis of the
rectifiers with high efficiency
9/
2008
Regenerative braking in
electric railway traction
9/
2008
Band-gap Reference Voltage
with High PSRR and High
Efficiency
10 /
2008
Controlo de elevadores
10 /
2008
DC-AC Converter with DSP
Based Control.
10 /
2008
Interface Inverter Between
Eolic Turbine and AC Mains
10 /
2008
Optimization of voltage VGS in 10 /
DC-DC Converters
2008
Maintenance Management and
11 /
Organization in Small Power
2008
Substations
Flyback resonant topologies - 12 /
A comparison
2008
Integrated rectifier and voltage 12 /
regulator for visual prothesis 2008
308
Supervisor
Beatriz Borges
Student
CoSupervisors
Filipa
Figueiredo
Title
End
Date
Study of low power resonant
converter with half wave
syncronous rectification for
contactless applications
12 /
2008
Table 35 – List of MSc Theses running in the Basic Sciences and Enabling Technologies Area
during 2007
PhD Theses
Supervisor
Student
Joaquim
Júdice
M. C. Brás
Joaquim
Júdice
J. M. Patrício
Manuel
Lameiras de
Figueiredo
Campagnolo
Daniel da Silva
Graça
CoTitle
Supervisors
Problemas de Programação
Matemática com Restrições
Lineares de Equilíbrio e
Aplicações
Algoritmos de Pontos Interiores
para ProblemasComplementares
Monótonos e suas Aplicações
Jorge Buescu
Computability with Polynomial
Differential Equations
Impedance Measurements using
António Cruz
Analog to Digital Converters and
Serra
Signal Processing Algorithms
Contributions to Characterization
Francisco
Shahram Shariat Antoni
and Design of Data Acquisition
Panahi
Manuel
Systems Aimed for Ocean
Alegria
Bottom Seismometers (OBS)
Manuel
Nuno Horta Optimization and Synthesis of
Jorge Manuel
Fernando
Jorge Manuel Analog Circuit and System Using
Correia
Correia
Evolutionary Algorithms
Martins de
Guilherme
Guilherme
Techniques
Barros
Pedro Ramos
Mouhaydine
Tlemçani
Pedro Silva
António Cruz Ricardo Filipe de
Girão
Serra
Queirós
Beatriz
Borges
Stanimir
Stoyanov
Valtchev
End
Date
2/
2007
4/
2007
9/
2007
10 /
2007
12 /
2007
12 /
2007
High resolution ultrasound
measurements
3/
2008
Series Resonant Converters
Applied to Contactless Energy
Transfer
3/
2008
309
Supervisor
Student
Nuno Horta
Manuel Barros
Henrique Jorge
António Cruz
Oliveira Fontes
Serra
Quaresma
Luís Filipe
Rui L. Aguiar Mesquita Nero
Moreira Alves
Miguel Ângelo
Rui L. Aguiar Martins
Madureira
Luis Filipe
Luís Alcácer
Morgado
Carlos Manuel
Ricardo João
Costa
Rodrigues
Lourenço
Gonçalves
Caleiro
CoEnd
Title
Supervisors
Date
Síntese e Optimização
Jorge Manuel
Automática de Circuitos e
3/
Correia
Sistemas Baseada em Técnicas 2008
Guilherme
de Computação Evolutiva
Electromagnetic Interference in
Etienne
Integrated Circuits – Substrate 4 /
Sicard
Noise Coupling and Isolation
2008
Structures
Circuitos Analógicos em Modo de
6/
Corrente com Grande Largura de
2008
Banda
Paulo
Monteiro
Design of wideband integrated
optical front-ends
6/
2008
Injecção e transporte de carga
em dispositivos electrónicos
6/
2008
Algebraizability of Quantum
Logics
7/
2008
Analysis and Numerical Solution
7/
of some Structural Optimization
2008
Problems
Joaquim
Júdice
S. Rosa
Francisco
Miguel Alves
Campos de
Sousa
Dionísio
Colorings of Knots versus
Luís Filipe Silva
Pedro Lopes
Polynomial Invariants
Camacho
7/
2008
High Frequency DC-DC
Vitor Manuel da
7/
Pedro Santos Converters for “System–on–a–
Silva Costa
2008
Chip (SoC)”
Joaquim
Localization models in civil
7/
P. Tavares
Júdice
engineering
2008
Beatriz
Raúl Domingos
Resonant Switching Technologies 7 /
for Mains Converters
2008
Borges
Monteiro
Beatriz
12 /
Hugo Marques
Active Power Filters
Borges
2008
Nelson Alberto
Biosensors for environmental
12 /
Manuel Matos
Frade da Silva
analysis
2008
Joaquim
Development and Analysis of
Luís A.
12 /
Pontes
Luís Miguel Silva
Entropic Neural Networks for
Alexandre
2008
Marques de
Classification
Sá
Fault Diagnosis in Electrical
António
Drives by the Motor Signature
12 /
M'hamed Drif
Cardoso
2008
Analysis
Beatriz
Borges
310
Supervisor
Student
Artur Lopes
Ribeiro
Luís Maria
Baptista Pina
Soares
António Cruz Nuno Gonçalo
Serra
Bandeira Brás
Domingos da
Rui Fonseca
Silva Barbosa
António
Cardoso
Acácio Manuel
Raposo Amaral
Natália dos
Santos Gameiro
Gonçalves
António
Ana Carla
Cardoso
Vicente Vieira
Marina Mendes
Eduardo de
Sargento
Sousa Saraiva Domingues
Perdigão
António
Cardoso
Jorge
Morgado
Ana Luísa
Mendonça
Pedro Silva
Girão
Vítor Viegas
Raúl Martins
Luís Maria
Baptista Pina
Soares
Dinis
Rui Miguel
Magalhães
Afonso Gomes
Santos
da Fonseca
Maria Manuela
Pawel
Areias da
Costa Pereira Andruszkiewicz
de Sousa
Abel João
Gomes
Adriano Nunes
Raposo
Beatriz
Borges
Hugo Ribeiro
CoEnd
Title
Supervisors
Date
Instrumentação para a aquisição
de imagens tomográficas por
12 /
2008
indução magnética
Magnetic Induction Tomography
12 /
2008
Domingos da Constuction and test of a
1/
Silva
radiometer-polarimeter at 5 GHz
2009
Barbosa
for astrophysical observations
Fault Diagnostics in Digitally
Controlled DC-DC Converters, by
7/
the Application of Measurement
2009
Techniques Based on States
Estimation
Fault Tolerance in Switched
Reluctance Motor Drives
7/
2009
Maintenance Management and
7/
Organization of School Buildings 2009
Técnicas de controlo para
balastros electrónicos baseadas 10 /
no uso de elementos
2009
controláveis reactivos
Plastic Optical Fibers doped with
11 /
conjugated polymers showing
2009
gain
Design and Implementation of a
José Dias
12 /
NCAP/XML Platform Based on
Pereira
IEEE 1451 Standard for
2009
Industrial Fieldbus Applications
Instrumentação e
processamento de imagem para 12 /
2009
sistemas tomográficos por
indução magnética
Domingos da Polarized Microwave Galactic
6/
Silva
Emission Mapping in the
2010
Barbosa
Northern Hemisphere
Segmentação de imagem médica
7/
usando contornos activos:
aplicação à detecção automática 2010
do cancro
Dynamic Geometric Modeling of
Plasmidic DNA for Therapeutical 9 /
2010
Purposes
Power Factor Correctors
10 /
2010
311
Supervisor
Student
CoTitle
Supervisors
Beatriz
Borges
Carlos Ferreira
Luís Sá
Nuno Horta
Mauro Santos
Jorge Manuel Arquitecturas Reconfiguráveis de
12 /
Correia
Elevado Desempenho p/
2010
Guilherme
Terminais Móveis da 4G e 5G
Switching Audio Amplifiers
End
Date
10 /
2010
Table 36 – List of PhD Theses running in the Basic Sciences and Enabling Technologies Area
during 2007
312
4.4.6
Publications
Applied Mathematics
Papers in Journals

Júdice, J. J.; H. Sherali; I. Ribeiro; A. Faustino; " A complementarity activeset algorithm for mathematical programming problems with equilibrium
constraints ", Journal of Optimization Theory and Applications , Vol. 134 ,
No. 1 , pp. 467 - 481 , January , 2007 .

Martins, M.; M. Trigo; D. J. Evans; " An iterative method for positive real
systems ", International Journal of Comp. Math. , Vol. 84 , No. 11 , pp. 1603
- 1611 , November , 2007 .

Pereira, E.; F. Martins; " Block Matrices and Stability Theory ", Tatra
Mountains Mathematical Publications , Vol. 9 , No. 9 , pp. 9 - 19 ( to appear)
, December , 2007 .

Pereira, E.; " Classes of Commuting Matrices(E. Pereira, C. Rosa, H. Cruz) ",
Southeast Asian Bulletin of Mathematics , Vol. 9 , No. 9 , pp. 9 - 19 (to
appear) , December , 2007 .

Lourenço, C.; " Dynamical computation reservoir emerging within a
biological network ", Neurocomputing , Vol. 70 , No. , pp. 1177 - 1185 ,
June , 2007 .

Pereira, E.; C. Miguel; " Fundamentals for a Block Linear Algebra ", Journal
of Applied Algebra and Discrete Structures , Vol. 5(2007) , No. 2 , pp. 71 91 , July , 2007 .

Moura, F.M.; R. Schiappa; " Higher-derivative corrected black holes:
Perturbative stability and absorption cross-section in heterotic string theory
313
", Classical and Quantum Gravity , Vol. 24 , No. 2 , pp. 361 - 386 ,
December , 2007 .

Júdice, J. J.; H. Sherali; I. Ribeiro; " The eigenvalue complementarity
problem ", Computational Optimization and Applications , Vol. 37 , No. 1 ,
pp. 139 - 156 , January , 2007 .

Moura, F.M.; " Type II and heterotic one loop string effective actions in four
dimensions ", Journal of High Energy Physics , Vol. 06 , No. - , pp. 052 - 052
, June , 2007 .

Barcia, P.; M.N. Bugalho; M.L. Campagnolo; J.O. Cerdeira; " Using Nalkanes to estimate diet composition of herbivores: a novel mathematical
approach ", Animal , Vol. 1 , No. , pp. 141 - 149 , June , 2007 .

Pereira; " Adaptive finite difference schemes based on interpolating
wavelets for solving 2D Maxwell's equations ", Proc IEEE AP-S/URSI
International Symp. , Honolulu , United States , July , 2007 .

" Adaptive finite difference schemes based on interpolating wavelets for
solving
2D
Maxwell's
equations
",
Proc
International
Conf.
on
Communications, Circuits and Systems - ICCCAS , Honolulu , United
States , July , 2007 .

Graça, D.; J. Buescu; M.L. Campagnolo; " Boundedness of the domain of
definition is undecidable for polynomial ODEs ", Proc Computability and
Complexity in Analysis - CCA , Siena , Italy , Vol. none , pp. 127 - 135 ,
June , 2007 .
314

Valadão, G. ; J. Dias; " PUMA: Phase Unwrapping via Max Flows ", Proc
Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 ,
pp. 609 - 612 , May , 2007 .

Hajduczenia, M.; H. J. A. Silva; M.M. Freire Freire; P. Monteiro; " Realtime
Hurst
parameter
estimation
based
on
modified
Embedded
Branching Process ", Proc Conf. on Telecommunications - ConfTele ,
Aveiro , Portugal , May , 2007 .

Pereira; " Resolução das equações de Maxwell usando wavelets
interpolatórias e esquemas adaptativos ", Proc Encuentro Ibérico de
Electromagnetismo Computacional - EIEC , Barcelona , Spain , Vol. 1 ,
pp. 1 - 4 , April , 2007 .
Impact of Telecommunications on Society
Papers in Journals

Oliveira, C.O.; D. Ladeira; D. Sebastião; L. M. Correia; " Electromagnetic
Fields Monitoring by the monIT Project ", RadioProtecção , Vol. II , No.
10/11 , pp. 31 - 40 , May , 2007 .

Ferro, J.M.; L. Borges; F. J. Velez; A. Lebres; " Applications of Wireless
Sensor Networks ", Proc International Association of Engineers (IAENG)
World Congress on Engineering - WCE , London , United Kingdom , Vol. 2 ,
pp. 1500 - 1505 , July , 2007 .

Oliveira, C.O.; D. Ladeira; D. Sebastião; L. M. Correia; C. A. Fernandes; "
Electromagnetic Fields Monitoring by the monIT Project ", Proc Conf. on
315
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 311 - 314 ,
May , 2007 .

Correia, L. M.; " eMobility and eHealth: Next steps ", Proc International
Symposium on Medical Information and Communication - ISMICT , Oulu ,
Finland , December , 2007 .

Correia, L. M.; " eMobility: present and future challenges ", Proc ERCIM
Workshop on eMobility - ERCIM , Coimbra , Portugal , May , 2007 .

Borges, L.; Carvalho; A. Lebres; " Industry Process Management With
Wireless Sensors ", Proc Portuguese-Spanish Conference in Electrical
Engineering , Funchal , Portugal , July , 2007 .

Borges, L.; Carvalho; A. Lebres; " InterNodal Network - An Autoconfigurable
Wireless network ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , Vol. vol. 1 , pp. 141 - 144 , May , 2007 .

Borges, L.; Carvalho; A. Lebres; " Measuring with Wireless Networks ", Proc
International Conference on Measurement - MEASUREMENT , Smolenice ,
Slovakia , Vol. Vol. 1 , pp. 189 - 192 , May , 2007 .

Correia, L. M.; " Mobile and Wireless Communications: What’s next? ", Proc
CELTIC Event , Berlin , Germany , February , 2007 .

Borges, L.; J.M. Ferro; Carvalho; F. J. Velez; A. Lebres; " Rede InterNodal –
Implementação e Aplicação prática de Redes de ", Proc Conf. da Engenharia
- UBIEngenharias , Covilhã , Portugal , November , 2007 .

Oliveira, C.O.; D. Ladeira; D. Sebastião; L. M. Correia; " The monIT Project Electromagnetic Fields Monitoring in Portugal ", Proc EC JRC/EMF-NET 2nd
Workshop on EMF risk communication , Stresa , Italy , May , 2007 .
316

Ferro, J.M.; L. Borges; F. J. Velez; A. Lebres; " Uma Visão das Futuras
Aplicações de Redes de Sensores Sem Fios ", Proc Conf. da Engenharia UBIEngenharias , Covilhã , Portugal , November , 2007 .
Instrumentation and Measurement
Book Chapters

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Virtual Instrumentation " Chapter in Advances in Data Modeling for Measurements in the Metrology
and Testing Fields , Franco Pavese (INRIM), Alistair Forbes (NPL). Series
“Modeling and Simulation in Science, Engineering and Technology” ,
Springer , Boston , 2007 .
Papers in Journals

Viegas, V.V.; J. M. Dias Pereira; P.M. Girão; " .NET Framework and Web
Services: A Profit Combination to Implement and Enhance the IEEE 1451.1
Standard ", IEEE Trans. on Instrum. and Measurement , Vol. 56 , No. 6 , pp.
2739 - 2747 , December , 2007 .

Dias Pereira, J. M.; O. Postolache; P.M. Girão; " A Digitally Programmable
A/D Converter for Smart Sensors Applications ", IEEE Trans. on Instrum.
and Measurement , Vol. 56 , No. 1 , pp. 158 - 163 , February , 2007 .

Radil, T.; J. Fischer; J. Kucera; " Dimension Measurement of Objects With
Circular Cross Section Using Point Light Sources and an Image Sensor
Without Lens ", IEEE Trans. on Instrum. and Measurement , Vol. 56 , No. 4 ,
pp. 1403 - 1411 , August , 2007 .

Radil, T.; P.M. Ramos; F. M. Janeiro; A.C. Serra; " DSP Based Power Quality
Analyzer for Detection and Classification of Disturbances in a Single-phase
Power System ", Metrology and Measurement Systems , Vol. XIV , No. 4 ,
pp. 483 - 494 , December , 2007 .
317

Postolache, O.; P.M. Girão; J. M. Dias Pereira; H. G. Ramos; " Multibeam
Optical System and Neural Processing for Turbidity Measurement ", IEEE
Sensors Journal , Vol. 7 , No. 5 , pp. 677 - 684 , May , 2007 .

Ramos, P.M.; A.C. Serra; " Multiharmonic signal and waveform fitting
algorithm for impedance measurements ", Transactions on Systems, Signals
and Devices , Vol. 2 , No. 4 , pp. 391 - 407 , September , 2007 .

Giuliani, F.; T. Morlat; A. Ramos; T. Girard; MFC Costa; J. Marques; RCM
Martins; HSM Miley; DL Limagne; GW Waysand; " SIMPLE-icity in Direct
Dark Matter Searches ", Nuclear Physics B , Vol. 1 , No. 173 , pp. 129 - 132
, November , 2007 .

Alegria, ; A.C. Serra; " Standard Histogram Test Precision of ADC Gain and
Offset Error Estimation ", IEEE Trans. on Instrum. and Measurement , Vol.
56 , No. 5 , pp. 1527 - 1531 , October , 2007 .

Dias Pereira, J. M.; O. Postolache; P.M. Girão; " Wavelet Techniques: A
Suitable Tool to Characterise and Optimize Encoders’ Based Systems ",
Measurement , Vol. 40 , No. 3 , pp. 264 - 271 , April , 2007 .

Brás, N.B.; A. L. Ribeiro; RCM Martins; A.C. Serra; " A 3D Magnetic
Induction Tomography Numerical Forward Problem Solver Based on
Finite Differences ", Proc Conf. on Telecommunications - ConfTele ,

Brás, N.B.; RCM Martins; A.C. Serra; " A CLOSED LOOP CARRIER
CANCELLATION METHOD FOR THE RECEIVING CIRCUIT OF MAGNETIC
INDUCTION TOMOGRAPHY (MIT) ", Proc International Conference on
Electromagnetic Near-Field Characterization and Imaging - ICONIC ICONIC , St. Louis , United States , Vol. 1 , pp. 752 - 757 , June , 2007 .
318

Postolache, O.; E Pinheiro; J. M. Dias Pereira; " A Practical Approach
Concerning
Detection
Heart
Based
Rate
on
Variability
Virtual
Measurement
Instrumentation
",
and
Proc
Arrhythmia
Conf.
on
Telecommunications - ConfTele , Peniche , Portugal , Vol. I , pp. 112 115 , May , 2007 .

Postolache, O.; H. G. Ramos; P.M. Girão; J. M. Dias Pereira; " A Practical
Approach
on
Water
Quality
Monitoring
Based
on
Distributed
Measurement System and Intelligent Signal Processing ", Proc UPC
Workshop Internacial sobre Tecnologia Marina - 28) MARTECH 2007 ,
Vilanova i la Geltru , Spain , Vol. I , pp. 1 - 5 , November , 2007 .

Rebelo, S. Morgadinho; R.F.S. Caldeirinha; " A Radio Channel Sounder
Remote Access Computational Framework ", Proc Conf. da Engenharia UBIEngenharias , Covilhã , Portugal , Vol. 1 , pp. 1 - 1 , November ,
2007 .

Dias Pereira, J. M.; O. Postolache; P.M. Girão; " A Smart and Portable
Solution for Heavy Metals Concentration Measurements ", Proc IEEE
Instrumentation and Measurement Technology Conf. , Warsow , Poland ,
Vol. CD , pp. 100 - 105 , May , 2007 .

Dias Pereira, J. M.; O. Postolache; V.V. Viegas; P.M. Girão; " Advantages
of PWM-A/D Conversion Techniques in Smart Sensing Applications ", Proc
Conf. on Electronic Measurement & Instruments - ICEMI , Xi'An , China ,
Vol. 1 , pp. 5 - 10 , August , 2007 .

Janeiro, F. M.; P.M. Ramos; " Application of Genetic Algorithms in
Parameter
Estimation
of
Periodic
Signals
",
Proc
Conf.
on
Telecommunications - ConfTele , Peniche , Portugal , Vol. 1 , pp. 217 220 , May , 2007 .

Tavares, J.; F. J. Velez; J.M. Ferro; " Application of Wireless Sensor
Networks to the Automobile ", Proc International Conference on
319
Measurement - MEASUREMENT , Smolenice , Slovakia , Vol. 1 , pp. 283 287 , May , 2007 .

Janeiro, F. M.; F. Wagner; P.M. Ramos; A. M. Silva; " Atmospheric
Visibility Measurements Based on a Low-Cost Digital Camera ", Proc
pp. 213 - 216 , May , 2007 .

Janeiro, F. M.; F. Wagner; P.M. Ramos; A. M. Silva; " Automated
Atmospheric Visibibility Measurements using a Digital Camera and Image
Registration ", Proc IMEKO TC19 Symp , Iasi , Romania , Vol. 1 , pp. 13 17 , September , 2007 .

Matz, V.; T. Radil; P.M. Ramos; A.C. Serra; " Automated Power Quality
Monitoring
System
for
On-line
Detection
and
Classification
of
Disturbances ", Proc IEEE Instrumentation and Measurement Technology
Conf. , Warsaw , Poland , Vol. CD-ROM , pp. 7083.1 - 7083.6 , May ,
2007 .

Sousa, R.; A. Pires; A. Rocha; " Detector Digital Para Balizas de Satélite:
Desenvolvimentos Recentes ", Proc URSI General Assembly , La Laguna ,
Spain , Vol. on CD , September , 2007 .

Sousa, L.; Alegria; J. Germano; " Developing and integrating lab projects
as important learning components in an embedded systems course ",
Proc International Conference on Microelectronic Systems Education ,
San Diego , United States , April , 2007 .

Radil, T.; V. Matz; P.M. Ramos; F. M. Janeiro; A.C. Serra; " Development
of a real-time Power quality monitoring Instrument for Detection and
Classification of Disturbances in a Single-phase Power System ", Proc
pp. 267 - 270 , May , 2007 .
320

Radil, T.; F. M. Janeiro; P.M. Ramos; " Development of a Single-Phase
DSP based Power Quality Analyzer using New Signal Processing
Algorithms for Detection and Classification ", Proc International Conf. on
Renewable Energies and Power Quality - ICREPQ , Sevilla , Spain , Vol.
CD-ROM , pp. 367.1 - 367.6 , March , 2007 .

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Distributed Passive
Sonar System for Performance Evaluation of Low Depth ", Proc Conf. on
Telecommunications - ConfTele , Peniche , Portugal , Vol. I , pp. 251 254 , May , 2007 .

Ramos, P.M.; T. Radil; F. M. Janeiro; A.C. Serra; " DSP based power
quality analyzer using new signal processing algorithms for detection and
classification of disturbances in a single-phase power system ", Proc
IMEKO TC4 Symp. , Iasi , Romania , Vol. II , pp. 433 - 438 , September ,
2007 .

Sousa, R.; A. Pires; A. Rocha; " DSP Based Software/Digtal PLL Detector
For Satellite Beacon Receivers ", Proc International Symp. on Signal
Processing and its Applications - ISSPA , Sharjah , United Arab Emirates
, February , 2007 .

Rocha, A.; A. Pires; R. Martins; R. Sousa; " Dual Polarization Digital
Satellite Beacon Detector for Propagation Experiments ", Proc Ka and
Broadband Communications Conf. , Turin , Italy , Vol. 1 , pp. 189 - 194 ,
September , 2007 .

Crespo, M.; A. Aleluia; O. Postolache; " Environmental Assessment of
Dolphin’ Sado Estuary based on Multi-Parametric Probe, Hydrophone
Array and Global Positioning System ", Proc UPC Workshop Internacial
sobre Tecnologia Marina - 28) MARTECH 2007 , Vilanova i la Geltru ,
Spain , Vol. I , pp. CD - CD , November , 2007 .
321

Janeiro, F. M.; P.M. Ramos; " Estimation of Sinewave Parameters using
Genetic Algorithms ", Proc IEEE International Conf. on Signals, Systems,
Devices - SSD , Hammamet , Tunisia , Vol. IV, SCI-4028 , pp. 1 - 4 ,
March , 2007 .

Ramos, P.M.; F. M. Janeiro; M. Tlemçani ; A.C. Serra; " Implementation
of a DSP based impedance measurement instrument using ellipse fitting
algorithms ", Proc IMEKO TC4 Symp. , Iasi , Romania , Vol. II , pp. 492 497 , September , 2007 .

Ramos, P.M.; F. M. Janeiro; " Implementation Of DSP based algorithms
for impedance measurements ", Proc IEEE IEEE International Conference
on Signal Processing and Communication - ICSPC , Dubai , United Arab
Emirates , Vol. 1 , pp. 816 - 819 , November , 2007 .

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Intelligent Distributed
Virtual System for Underwater Acoustic Source Localization and Sounds
Classification
",
Proc
International
Workshop
on
Intelligent
Data
Acquisition and Advanced Computing Systems , Dortmund , Germany ,
Vol. I , pp. 132 - 135 , September , 2007 .

Rodrigues, P.; " Managing Space Student Projects: Lessons Learned in
the SSETI-ESEO Project ", Proc International Astronautical Federation
International Astronautical Congress 2007 - IAC07 , Hyderabad , India ,
Vol. DVD , pp. 1 - 6 , September , 2007 .

Janeiro, F. M.; P.M. Ramos; " Multiharmonic Waveform Fitting of Periodic
Signals using Genetic Algorithms ", Proc IEEE Instrumentation and
Measurement Technology Conf. , Warsaw , Poland , Vol. CD-ROM , pp. 1
- 6 , May , 2007 .

Postolache, O.; G. Postolache; P.M. Girão; " New Approach on Cardiac
Autonomic Control Estimation Based on BCG Processing ", Proc IEEE
322
Canadian Conf. on Electrical & Computer , Vancouver , Canada , Vol. I ,
pp. 165 - 169 , April , 2007 .

Postolache, O.; G. Postolache; P.M. Girão; " New Device for Assessment
of Autonomous Nervous System Functioning in Psychophysiology ", Proc
IEEE International Workshop on Medical Measurements and , Warsaw ,
Poland , Vol. I , pp. 95 - 99 , May , 2007 .

Radil, T.; V. Matz; F. M. Janeiro; P.M. Ramos; A.C. Serra; " On-line
Detection and Classification of Power Quality Disturbances in a Singlephase Power System ", Proc International Conf. on Power Engineering,
Energy and Electrical Drives - POWERENG , Setúbal , Portugal , Vol. CDROM , pp. 713 - 718 , April , 2007 .

Postolache, O.; J. M. Dias Pereira; P.M. Girão; " Optical Fiber Based
Turbidity Sensing System ", Proc IMEKO TC19 Symp , Iasi , Romania ,
Vol. I , pp. 47 - 52 , September , 2007 .

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Optical Fibre Based
Turbidity Sensing System ", Proc IMEKO TC4 Symp. , Iasi , Romania ,
Vol. II , pp. 71 - 75 , September , 2007 .

Radil, T.; F. M. Janeiro; P.M. Ramos; A.C. Serra; " Power Quality
Monitoring in a Single-phase Power System ", Proc IEEE International
Conf. on Signals, Systems, Devices - SSD , Hammamet , Tunisia , Vol.
CD-ROM , pp. 1 - 4 , March , 2007 .

Alegria, ; " Proposal for High Accuracy Linearity Test of Triangular
Waveform Generators ", Proc IEEE AFRICON Conference in Africa ,
Wondhoek , Namibia , September , 2007 .

Dias Pereira, J. M.; " Study on Information Fusion based on Wavelet
Neural Network and Evidence Theory in Fault Diagnosis ", Proc Conf. on
323
Electronic Measurement & Instruments - ICEMI , Xi'An , China , Vol. 3 ,
pp. 522 - 526 , August , 2007 .

Shariat-Panahi, S.; Alegria; A. Manuel; A.C. Serra; " Time Base Error
Characterization of a Data Recorder Aimed for Marine Seismology ", Proc
IEEE Instrumentation and Measurement Technology Conf. , Warsow ,
Poland , May , 2007 .

Queirós, R.; V. Matz; P.M. Girão; A.C. Serra; " Ultrasonic Thickness
Estimation using Cross-Correlation and Phase-Shift ", Proc Conf. on

Alegria, ; A.C. Serra; " Uncertainry Analysis of the ADC Histogram Test
Using Triangular Stimulus Signals ", Proc Workshop on ADC Modelling
and Testing , Iasi , Romania , September , 2007 .

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Underwater Acoustic
Source Localization Based on Passive Sonar and Intelligent Processing ",
Proc IEEE Instrumentation and Measurement Technology Conf. , Warsav
, Poland , Vol. I , pp. 175 - 179 , May , 2007 .

Postolache,
O.;
H.
G.
Ramos;
"
Virtual
Instrumentation
and
Reconfigurable Technology on Water Quality Sensor Calibration System
", Proc International Workshop on Marine Technology , Vilanova i la
Geltru , Spain , Vol. I , pp. CD - CD , November , 2007 .

Postolache, O.; P.M. Girão; G. Postolache; J. M. Dias Pereira; " Vital
Signs Monitoring System Based on EMFi Sensors and Wavelet Analysis ",
Proc IEEE Instrumentation and Measurement Technology Conf. , Warsaw
, Poland , Vol. I , pp. 3 - 7 , May , 2007 .

Dias Pereira, J. M.; O. Postolache; P.M. Girão; " Voltammetry based
Automated Instrument for In-Situ and Online Measurement of Heavy
324
Metals Concentration in Water ", Proc IMEKO TC4 Symp. , Iasi , Romania
, Vol. 1 , pp. 85 - 90 , September , 2007 .

Postolache, O.; P.M. Girão; J. M. Dias Pereira; " Wireless Embedded Air
Multi-Parameter Measuring System ", Proc IMEKO TC19 Symp , Iasi ,
Romania , Vol. II , pp. 41 - 46 , September , 2007 .
Integrated Circuits and Systems
Papers in Journals

Alves, L.; R. L. Aguiar; " A Time-Delay Technique to Improve GBW on
Feedback Amplifiers ", International Journal of Circuit Theory and
Applications - Wiley , Vol. 0 , No. 0 , pp. 0 - 0 , January , 2007 .

Guilherme, J.G.; " An Evolutionary Optimization Kernel using a Dynamic
GA-SVM Model applied to Analog IC Design ", Proc European Conf. on
Circuit Theory and Design , Seville , Spain , Vol. 1 , pp. 33 - 35 , August
, 2007 .

Horta,
N.H.;
M.B.
Barros
;
J.G.
Guilherme;
"
An
Evolutionary
Optimization Kernel Using a Dynamic GA-SVM Model Applied to Analog
IC Design ", Proc European Conf. on Circuit Theory and Design ,Spain ,
August , 2007 .

Guilherme, J.G.; " Design of a Multimode Reconfigurable Sigma-Delta
Converter for 4G Wireless Receivers ", Proc European Conf. on Circuit
Theory and Design , Seville , Spain , Vol. 1 , pp. 132 - 135 , August ,
2007 .

Horta, N.H.; A. Silva; J.G. Guilherme; " Design of a Multimode
Reconfigurable Sigma-Delta Converter for 4G Wireless Receivers ", Proc
European Conf. on Circuit Theory and Design , , Spain , Vol. , pp. - ,
August , 2007 .
325

Guilherme, J.G.; " Designing Reconfigurable Multi-Standard Analog
Baseband Front-End for 4G Mobile Terminals: System Level Design ",
Proc Conf. on Telecommunications - ConfTele , Peniche , Portugal , Vol. 1
, pp. 117 - 120 , May , 2007 .

Horta, N.H.; A. Silva; J.G. Guilherme; " Designing Reconfigurable MultiStandard Analog Baseband Front-End for 4G Mobile Terminals: System
Level Design ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , March , 2007 .

Horta, N.H.; M.B. Barros ; J.G. Guilherme; " GA-SVM Feasibility Model
and Optimization Kernel applied to Analog IC Design Automation ", Proc
ACM Great Lakes VLSI - GLSVLSI) , , Italy , March , 2007 .

Gomes, M.; G. Falcão Fernandes ; V. Silva; A. S. Sengo; V. F. Ferreira;
Falcão; " High Throughput Encoder Architecture for DVB-S2 LDPC-IRA
Codes ", Proc IEEE International Conference on Microelectronics - ICM ,
Cairo , Egypt , December , 2007 .

Horta, N.H.; N. Lourenço; " LAYGEN – Automatic Analog ICs Layout
Generator ", Proc Conf. on Telecommunications - ConfTele , Peniche ,
Portugal , March , 2007 .

Quaresma, HJQ; A.C. Serra; " Substrate Noise Analysis for Integrated
Circuits
Design
",
Proc
IEEE
Instrumentation
and
Measurement
Technology Conf. , Warsaw , Poland , May , 2007 .

Guilherme, J.G.; " Switch Mode Power Supply Design Constraints for
Space Applications ", Proc Conf. on Telecommunications - ConfTele ,
326
Logic an Computation
Book Chapters

Caleiro, C.; J. Ramos; " Combining Classical and Intuitionistic implications " Chapter in Frontiers of Combining Systems ( FroCoS2007), volume 4720 of
Lecture Notes in Artificial Intelligence , B. Konev and F. Wolter , Springer ,
Liverpool , 2007 .

Lourenço, C.; " How can natural brains help us compute? " - Chapter in
Computation and Logic in the Real World, Quaderni del Dipartimento di
Scienze Matematiche e Informatiche "Roberto Magari", pages 257-262 , S.B.
Cooper, B. LÃ¶we, and A. Sorbi , Universita di Siena , , 2007 .

Carnielli , W.; M. Coniglio; J. Marcos; " Logics of formal inconsistency " Chapter in Handbook of Philosophical Logic, volume 14 , D. Gabbay and F.
Guenthner , Kluwer Academic , , 2007 .

Caleiro, C.; R. Gonçalves; " On the algebraization of many-sorted logics " Chapter in Recent Trends in Algebraic Development Techniques - Selected
Papers, volume 4409 of Lecture Notes in Computer Science, pages 21-36 , J.
Fiadeiro and P.-Y. Schobbens , Springer , , 2007 .

Sernadas, A. S.; P. Mateus; Y. Omar; " Quantum computation and
information " - Chapter in A portrait of state-of-the-Art Research at the
Technical University of Lisbon, pages 46-65 , M.S. Pereira , Springer , , 2007

Campagnolo,
M.L.;
K.
Ojakian;
"
Using
Approximation
to
Relate
Computational Classes over the Reals " - Chapter in Proceedings of MCU'07 volume 4664 of Lecture Notes in Computer Science , J. Durand-Lose and M.
Margenstern , Springer , , 2007 .
327
Papers in Journals

Cederquist, J.; R. C. Corin; ; ; ; ; " Audit-based compliance control ",
International Journal of Information Security , Vol. 6 , No. 2 , pp. 133 - 151
, March , 2007 .

Baltazar, P.; P. Mateus; R. Nagarajan; N. Papanikolaou; " Exogenous
probabilistic computation tree logic ", Electronic Notes in Theoretical
Computer Science , Vol. 190 , No. 3 , pp. 95 - 110 , January , 2007

Caleiro, C.; J. Ramos; " From fibring to cryptofibring: a solution to the
collapsing problem ", Logica Universalis , Vol. 1 , No. 1 , pp. 71 - 92 ,
January , 2007 .

Bournez, O.; M.L. Campagnolo; D. Graça; E. Hainry; " Polynomial
differential equations compute all real computable functions on computable
compact intervals ", Journal of Complexity , Vol. 23 , No. , pp. 317 - 335 ,
March , 2007 .

Rasga, J.; " Sufficient conditions for cut elimination with complexity analysis
", Annals of Pure and Applied Logic , Vol. 149 , No. 1-3 , pp. 81 - 99 ,
November , 2007 .

Campagnolo, M.L.; K. Ojakian; " The methods of approximation and lifting in
real computation ", Electronic Notes in Theoretical Computer Science , Vol.
167 , January , 2007 .

Matos, A.; G. Boudol; I. Castellani; " Typing Noninterference for Reactive
Programs ", The Journal of Logic and Algebraic Programming , Vol. 72 , No.
2 , pp. 124 - 156 , July , 2007 .

Lanese, I.; V. Vasconcelos; F. Martins; A.R. Ravara; " Disciplining
orchestration and conversation in service-oriented computing ", Proc
328
International Conference on Software Engineering and Formal Methods IEEE , London , United Kingdom , September , 2007 .

J. Cederquist; ; ; " Extended Privilege Inheritance in RBAC ", Proc ACM
Symposium on Information, Computer and Communications Security ASIACCS , . , Singapore , March , 2007 .

Moura, P.M.; P. Crocker; " Multi-threading programming in Logtalk ", Proc
Association
for
Logic
Programming
International
Colloquium
on
Implementation of Constraint and Logic Programming Systems - CICLOPS ,
Porto , Portugal , September , 2007 .

Lourenço, C.; " Structure reservoir computing with spatiotemporal chaotic
attractors ", Proc European Symp. on Artificial Neural Networks - ESANN ,
Bruges , Belgium , January , 2007 .

Baltazar, P.; R. Chadha; P. Mateus; A. S. Sernadas; " Towards modelchecking quantum security protocols ", Proc Workshop on Quantum Security
- QSEC , Guadeloupe , French Polynesia , January , 2007 .

Mateus, P.; F.M. Moura; J. Rasga; " Transferring proofs of zero-knowledge
systems with quantum ", Proc Workshop on Quantum Security - QSEC ,
Guadeloupe , France , January , 2007 .
Power Electronics and Power Systems
Papers in Journals

Álvarez, J.; M. Perdigão; Marco A. Dalla Costa Costa; E. S. Saraiva; "
Reguladores magnéticos en el control de balastos electronicos Empleo de
inductancia variable ", Mundo Electrónico , Vol. 386 , No. 386 , pp. 62 - 72 ,
May , 2007 .
329

Aguiar, P.; " Smart Power Integrated Circuit Targeted at Educational
Purposes ", IEEE Trans. on Power Electronics , January , 2007.

Mendes, A. M. S.; X. Fernández; A. J. M. Cardoso; " Thermal Behaviour of a
Three-Phase Induction Motor Fed by a Fault Tolerant Voltage Source
Inverter ", IEEE Trans. on Industry Applications , Vol. 43 , No. 3 , pp. 724 730 , May , 2007 .

Marques, H.S.; A. Anunciada; " A pioneering, reference free, APF control
strategy applied to an ultra-low DC-bus voltage topology ", Proc Power
Conversion Intelligent Motion - PCIM , Nurnberg , Germany , Vol. I-2007
, pp. 1 - 6 , May , 2007 .

Ferreira, C. A. F.; H. Ribeiro; P. Matos; " DESIGN AND IMPLEMENTATION
STRATEGIES FOR AN ELECTRIC
VEHICLE POWER TRAIN ", Proc
International Conf. on Electrical Engineering , Coimbra , Portugal ,
November , 2007 .

Cruz, S. M. A. ; A. J. M. Cardoso; " Diagnosis of rotor faults in direct and
indirect FOC induction motor drives ", Proc European Conf. on Power
Electronics and Applications , Aalborg , Denmark , Vol. CD-Rom , pp. 1 10 , September , 2007 .

Ferreira, C. A. F.; P. Matos; H. Ribeiro; " Electric Mini - Challenges and
Solutions for the Electric Power Train ", Proc International Conf. on
Renewable Energies and Power Quality - ICREPQ , Sevilla , Spain , March
, 2007 .

Ferreira, C. A. F.; H. Ribeiro; P. Matos; " Electric Vehicle - Power
Converters Dimensioning and Control Strategies ", Proc International
Conf. on Renewable Energies and Power Quality - ICREPQ , Sevilla ,
Spain , March , 2007 .
330

Cruz, S. M. A. ; A. J. M. Cardoso; " Fault Indicators for the Diagnosis of
Rotor Faults in FOC Induction Motor Drives ", Proc IEEE International
Electric Machines and Drives Conf. , Antalya , Turkey , Vol. CD-Rom , pp.
1136 - 1141 , May , 2007 .

Buiatti, G. M. Buiatti; S. M. A. Cruz; A. J. M. Cardoso; " Lifetime of Film
Capacitors in Single-Phase Regenerative Induction Motor Drives ", Proc
IEEE International Symp. on Diagnostics for Electrical Machines, Power
Electronics and Drives , Cracow , Poland , Vol. CD-Rom , pp. 356 - 362 ,
September , 2007 .

Ferreira, C. A. F.; A. Anunciada; " Low Distortion Switching Audio
Amplifier using One Cycle Control and Notch Low Pass Filter ", Proc Conf.
on Telecommunications - ConfTele , Peniche , Portugal , May , 2007 .

Anunciada, A.; B. Borges; H.S. Marques; " Optimizing the Transient
Behavior and Frequency Response of Constant Frequency One Cycle
Control: The Charge Control Modulator ", Proc IEEE Power Electronics
Specialists Conf. - PESC , Orlando , United States , Vol. 2/07 , pp. 2647 2651 , June , 2007 .

Cruz, S. M. A. ; F. Blazquez Blazquez; A. J. M. Cardoso; C. Vengazones;
" Preliminary study on the diagnosis of rotor faults in brushless doublyfed induction machines ", Proc International Congress on Condition
Monitoring and Diagnostic Engineering Management - COMADEM , Faro ,
Portugal , Vol. CD-Rom , pp. 487 - 493 , June , 2007 .

Cruz, S. M. A. ; A. J. M. Cardoso; " Strategies for the diagnosis of rotor
faults in vector-controlled induction motor drives ", Proc International
Congress
on
Condition
Monitoring
and
Diagnostic
Engineering
Management - COMADEM , Faro , Portugal , Vol. CD-Rom , pp. 607 - 615
, June , 2007 .
331
Technology and Materials
Books

Alcácer, L.; Introdução à Química Quântica Computacional , , IST Press ,
Lisboa , 2007 .
Papers in Journals

Fazendeiro, P.; J. Oliveira ; W. Pedrycz; " A Multi-Objective Design of a
Patient and Anaesthetist-Friendly Neuromuscular Blockade Controller ", IEEE
Trans. on Biomedical Engineering, Vol. 54, No. 9, pp. 1667 - 1678,
September, 2007 .

Paolo, R.; J. Melo; J. Pina; H. Burrows; J. Morgado; A. Maçanita; "
Conformational relaxation of p-phenylenevinylene trimers in solution studied
by picosecond time-resolved fluorescence ", ChemPhysChem, Vol. 8, No. 18,
pp. 2657 - 2664, December, 2007.

Fernandes, M.; V. Bermudez; R. A. Sá Ferreira; Carlos; A.C. Charas; J.
Morgado; M. Silva; M. Smith; " Highly photostable luminescent poly(ecaprolactone)siloxane biohybrids doped with europium complexes ", Chem.
Mater, Vol. 19, No. 16, pp. 3892 - 3901, August, 2007.

Bernardo , G.; A.C. Charas; L. Alcácer; J. Morgado; " Improving polymer
light-emitting diodes efficiency using interlayers based on cross-linkable
polymers ", Appl. Phys. Letters, Vol. 91, No. 6, pp. 063509-1 - 063509-3,
August, 2007.

Morgado, J.; L. Alcácer; M.A. Esteves; N. Pires; B.G. Gigante; " New
stylbene-based arylamines with dehydroabietic acid methyl ester moieties
for organic light-emitting diodes ", Thin Solid Films, Vol. 515, No. 19, pp.
7697 - 7700, July, 2007.
332

Fratiloiu, S.F.; S. Fonseca; F. Gozema; H. Burrows; M. Costa; A.C. Charas;
J. Morgado; L. Siebbeles; " Opto-electronic properties of fluorene-based
derivatives as precursors for light-emitting diodes ", Journal of Physical
Chemistry C, Vol. 111, No. 15, pp. 5812 - 5820, April, 2007.

Morgado, J.; L. Alcácer; A.C. Charas; " Poly(9,9-dioctylfluorene)-based lightemitting diodes with pure b-phase emission ", Appl. Phys. Letters, Vol. 90,
No. 20, pp. 201110-1 - 201110-3, May, 2007.

Morgado, J.; M. Fernandes; A.C. Charas; V. Bermudez; L. Alcácer; " Role of
energy transfer and charge trapping on the luminescence properties of
europium
complexes/luminescent
polymers
composites
",
Journal
of
Materials Science: Materials in Electronics, Vol. 18, No. 1, pp. S271 - S275,
October, 2007.

Charas, A.C.; J. Morgado; C. L. Lucas; P. Brogueira; L. Alcácer; " A New
Material for n-type Organic Field-Effect Transistors ", Proc Conf. on
Telecommunications - ConfTele, Peniche, Portugal, Vol., pp. 271 - 274, May
, 2007.

Sousa, M.; M.M. Freire Freire; " Advanced Querying Architecture for DICOM
Systems ", Proc International Conference on Systems and Networks
Communications, Cap Esterel, France, Vol. 1, pp. 1 - 6, August, 2007 .

Horta,
N.H.;
A.C.
Charas;
J.
Morgado;
"
PLASTIC:
Automatic
Characterization and Modeling of Organic Transistors for IC Design and
Simulation ", Proc Conf. on Telecommunications - ConfTele, Peniche,
Portugal, March, 2007 .
333
4.4.7
Other Achievements
Prototypes

Ferreira, C. A. F.; " 600W Direct Conversion High Power Factor Switched
Power Amplifier ", October, 2007.

Marques, H.S.; " Hybrid Shunt Active Power Filter ", July, 2007.
Patents

Girão, P.M.; O. Postolache; G. Postolache; " Instrumento portátil móvel
para medição dos parâmetros de homeostasia em seres humanos ",
PT103683, March, 2007.

Postolache, O.; P.M. Girão; G. Postolache; " Mobile Instrument for
human homeostasis parameters measurement ", PT103683, March,
2007.

Girão, P.M.; Alegria; " Sistema de identificação automática de matrículas
de veículos a partir de imagens vídeo ", PT103680, March, 2007.
Miscellaneous

Falcão, A.; 01-10-2007.

Teixeira, A.; " MSc Thesis Jury ", Complexidade de Comunicação.
Relação com o tamanho dos rectângulos e com a complexidade das
instâncias ", 01-10-2007.

Charas,
A.C.;
"
Invited
Talks
",
Development
of
Crosslinkable
Polyfluorenes for Organic Electronics ", 8th Conference of PhysicalChemistry of the Portuguese Chemical Society, 01-06-2007.
334

Postolache, O.; P.M. Girão; " Invited Talks ", Smart System for Biological
Parameters Monitoring Based on NI Technology ", NI Days2007, 01-042007.
4.4.8
Other Contributions

Conf. on Telecommunications - ConfTele, Organizing Committee, Beatriz
Borges, 01-01-2007.

IEEE International Engineering Management Conference - IEMC Europe,
Organizing Committee, Beatriz Borges, 01-01-2007.

WSEAS International Conf. on Applied Mathematics and Computer Science,
Scientific Committee, Maria Celeste Gouveia, 01-01-2007.

Encuentro Ibérico de Electromagnetismo Computacional - EIEC , Technical
Programme Committee, António Topa, 01-01-2007.

On The Move Federated Conferences - OTM, Organizing Committee, Paulo
André Pais Fazendeiro, 01-01-2007.

1st IMEKO TC19 Symposium, Technical Programme Chairman, Pedro Silva
Girão, 11-09-2007.

3as Jornadas sobre Sistemas Reconfiguráveis, Scientific Committee, Helena
Ramos, 08-02-2007.

6th Conference on Telecommunications, Technical Programme Committee,
Pedro Silva Girão, 11-05-2007.

AFRICON 2007, Technical Programme Committee, Artur Lopes Ribeiro, 2609-2007.

Design Automation and Test in Europe, DATE 2007, Technical Programme
Committee, Nuno Horta, 10-03-2007.

Encontro Nacional sobre Instrumentação Científica e Metrologia Aplicadas à
Engenharia Civil , Scientific Committee, Pedro Silva Girão, 15-11-2007.

First International Symposium on Environmental Testing Engineering (ETE’
2007), Technical Programme Committee, Pedro Silva Girão, 15-11-2007.
335

Fourth International Multi-Conference on Systems, Signals & Devices
(SSD'07), Technical Programme Committee, Pedro Silva Girão, 19-03-2007.

IMEKO TC-4, 15th International Symposium on Novelties in Electrical
Measurements
and
Instrumentation,
Technical
Programme
Chairman,
António Cruz Serra, 18-09-2007.

Joint EUROPT-OMS Meeting, Scientific Committee, Joaquim Júdice, 01-072007.

Nonconvex Programming, Local and Global Approaches: Theory, Algorithms
and Applications, Scientific Committee, Joaquim Júdice, 01-12-2007.

Optimization 2007, Scientific Committee, Joaquim Júdice, 01-07-2007.

ORP3
2007
-
OR
Peripatetic
Post-Graduate
Programme,
Scientific
Associadas,
Scientific
Committee, Joaquim Júdice, 01-09-2007.

XATA2007
—
XML:
Aplicações
e
Tecnologias
Committee, Nuno Horta, 10-02-2007.

Sensors & Transducers Journal, ISSN 1726-5479, Pedro Silva Girão, Member
Editorial Board, 01-07-2007 to.

Measurement, Elsevier, Pedro Silva Girão, 01-11-2006 to.

Transactions on Systems, Signals and Devices, Shaker-Verlag, Pedro Silva
Girão, Editorial Board, 01-01-2006 to.

Measurement , Elsevier, António Cruz Serra, Member of the Editorial Board,
01-01-2007 to 01-01-2010.

Química (Bulletin of the Portuguese Chemical Society) , Portuguese Chemical
Society, Jorge Morgado, Editor, 01-01-2007 to 01-12-2009.

Sensors & Transducers Journal, ISSN 1726-5479, Pedro Silva Girão, Member
Editorial Board, 01-07-2007 to.
336

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