GTEL –WirelessTelecomResearchGroup Federal ... · • Wireless network simulation with sophisticated propagation, mobility and traffic models ... Protected area w/ technical reports

GTEL – Wireless Telecom Research GroupFederal University of Ceara – UFC

Institutional Presentation

Prof. Charles C. Cavalcante, Dr. June, 2006

(Coordinator: Prof. Rodrigo Cavalcanti, Dr., PMP)

2GTEL Institutional Presentation – June 30th, 2006

GTEL Institutional Presentation

• AgendaContext and Infra-StructureManagement PrinciplesTechnical OrganizationIndustrial Cooperation


UFC´s rectorship

GTEL – Context & Infra-Strucutre


State of Ceará, Brazil•State of Ceará•Area: 146,348 km2

•Population: 7.5 million

•GDP (2004): US$ 15 billion

•GDP per capita: US$ 2,000

•GDP composition:

•Agriculture - 06 %

•Industry - 39 %

•Services - 55 %

•Fortaleza (capital)•Population: 2.4 million

• 573 Km of sand beaches, 27oC average temp, 300 sunny days per year


Fortaleza, Ceará


UFC´s Infra-Structure

• Foundation: 1954

• 03 Campi in Fortaleza: Benfica, Pici andPorangabussu

• Total area app. 2.330.000 m2

• Over 25.000 undergraduate students

• Over 5.000 graduate students

• The university has experimented a significantgrowth in size and scientific production over thelast 10 years (see next slides)


UFC´s Organization and GTELSuperior

Administration

Medicine, Pharmacy,

Odontology andNursery

Economy andAdministration Law

Human Sciencesand

EducationTechnology Basic Sciences Agriculture

TeleinformaticsEngineeringDepartment

GTEL


UFC in Numbers – Undergraduate Students

0

2.000

4.000

6.000

8.000

10.000

12.000

14.000

16.000

18.000

20.000

1995 1996 1997 1998 1999 2000 2001 2002 2003


UFC in Numbers – Graduate Students

0

500

1.000

1.500

2.000

2.500

3.000

3.500

4.000

4.500

1995 1996 1997 1998 1999 2000 2001 2002 2003


UFC in Numbers – Professors w/ Ph.D. or D.Sc.

0

100

200

300

400

500

600

700

1995 1996 1997 1998 1999 2000 2001 2002 2003


UFC in Numbers – Ph.D.Thesis

0

20

40

60

80

100

120

140

160

1995 1996 1997 1998 1999 2000 2001 2002 2003


Dept. of Teleinformatics Engineering• Concept: Telcommunication Engineering + Informatics

(hardware mainly) + Networks = “Bit Antenna”• 16 reserchers and 2 professors;• 16 researchers and 2 professors;• 120 undergraduate, 70 master and 24 doctorate students;• Laboratories

Wireless Telecommunications Lab (GTEL) – signal processing, system and network wireless communication;Teleinformatics Lab – modeling, identification and control systems; biomedical processing;Quantum Information Lab – cryptography, quantum computing and computer information;Vision and Image Lab – biometrics, image processing, radar;Computer System Engineering Lab – architecture; prototypes for embedded systems;Microwave and Optics Communications Lab – theory and practice.

(http://www.deti.ufc.br)


Quick Facts about GTEL• GTEL focuses on Wireless Technologies and seeks to form

skilled engineers for the brazilian telecom sector.

• GTEL was created in year 2000 just before the first contractwith Ericsson Research was signed

• GTEL holds a PRONEX: an “Excellence Grant” from theBrazilian National Research Agency (CNPq).

• The Group has developed research projects in partnership withother academic labs, industry and research institutes

• The GTEL/ERiCSSON cooperation has been the largest andmost important industrial partnership at GTEL.

• GTEL is a member of the Wireless World Research Forum(WWRF)


Human Resources• GTEL is a research group composed by

ProfessorsPost-doctoral researchersGraduate and undergraduate students

• Personnel w/ background mostly in electrical and telecomengineering but some also in computer science

• Currently we are a total of 27 technical collaborators• 03 people in the administrative/computational support team• Ad-hoc external consultants

• O2 Cellular Operator, Ireland• University of Campinas• University of São Paulo• University of Nice, France• University of Darmstaadt, Germany


Physical Infra-Structure• One of the

newest UFC´s labs

• 300m2 of areawith infra-structure for R&D


Software Development Lab


GTEL Computer Cluster• Used for complex

system simulations

• 80 processors P-IV 3GHz, 1 GbRAM/processador

• OS Linux

• PBS Pro for process scheduling

• Use of Matlab, IT++ and C++ for simulationdevelopment


GTEL – Former and Current Project Partners

UFRJUFRJ

http://www.timnordeste.com.br/

http://www.institutoatlantico.com.br/

http://www.oi.com.br/

http://www.dspcom.fee.unicamp.br/

http://www.finep.gov.br/


Current Funded Projects• Ericsson Research

UFC.10 – Multi-access (just finished!)UFC.11 – Mimo-Ofdm transceivers (just finished!)UFC.16 – Survey on OFDM Receivers (just finished!)UFC.17 – UMTS Emerging ServicesUFC.18 – Ressource Management for OFDMA (just started!)UFC.19 – Cross-layer for MIMO-OFDM (just started!)

• CNPq – National Research CouncilPronex (general subject)Universal (general subject)

• Finep/UFRJVoice over IP for 3G Systems


GTEL – Management Principles


Management Principles• Project and Program Management

• Research strategy – basic research w/technologicalfocus/use-inspired

• Human Resources training including both “scientific” and“technology”-oriented focuses

• Matrix-like organization

• Group-collaborative work

• Workflow based on clear processes, roles and resposibilities

• Appropriate workflow supporting tools

• Software Engineering as support


Project and Program ManagementGTEL runs a program of projects in partnership with different partnersProfessional Project Management

• Adoption of selected PMI/PMBok practices• Use of project plans as basis for project control• Project management software supporting tools• HR sharing among multiple projects

Some challenges• How to better choose the projects that constitute

the portfolio of the program• Human resources retention


General Research Steps

•Technology Conception

•Improvements on Physical Layer, Intelligent Signal Processing,

•Improvements on higher layers, Radio Resource Management

•Link-Level Evaluation

•Standard-like precise simulation for evaluation of proposed technologies

•Impact at System-Level

• Wireless network simulation with sophisticatedpropagation, mobility and traffic models

• Implementation of protocols and signaling as specified by standards

• Evaluation of impact of new technologies at theapplication level

• Generation of critical information about planning anddimensioning of modern wireless networks


Model for Selection of Research Strategy


The “Pasteur Quadrant”

T. EDISON´SQUADRANT

PASTEUR´SQUADRANT

TECHNOLOGICAL RELEVANCE

SCIE

NTI

FIC

REL

EVA

NC

E BOHR´SQUADRANT


Human Resources Training• GTEL has a standard program for training personnel in wireless

communications

• It is called “Scientific and Technological Initiation Program in WirelessCommunications”

• Undergraduate students are recruited from Electrical Eng., Teleinformatics Eng. and Computer Science courses

• The program is composed of:Basic “Overview” Program (6 mos)

Specialization 1 – Physical Layer and Signal Processing (1 yr)

Specialization 2 – Access Networks (1 yr)

Program on Simulation Techniques (6 mos)

Program on Advanced Programming Techniques (6 mos)

• This training is conducted mostly as a self-study program but withcoaching and mentoring from older GTEL members and periodicalevaluation of the results achieved.


Workflow Tools• Meetings (a lot of!)• Shared ToDo Lists• Wiki (bank of ideas, concurrent editing of reports)• BLOG (meeting notes)• Knowledge Management Tool (KM)• Time Allocation Spreadsheet

• 3GPP Mirror Site and search engine• Intranet

Web-mailOn-line library systemSEPIN automated activity reporting systemGTEL member list directory with contact informationVideo surveillance systemProtected area w/ technical reports from on-going/previous projects


GTEL – Intranet

GTEL New Web Site

http://www.gtel.ufc.br/novo


Software Engineering Strategy

• Object Oriented methodology• UML software project

• Adoption of some CMM practices


GTEL Technical Organization


GTEL Technical Organization - Basics

• GTEL is organized into 5 technical groups(TG´s) [see next slide]

• Each TG is composed typically of a leaderplus 3-4 researchers

• GTEL is organized as a matrix whereproject teams are composed by personnelfrom different TG´s

• TG´s are responsible for keeping thetechnical excellence of its members


Technical Groups (TGs)GTEL

Coordination& Project

Management

Physical-Layerand

SignalProcessing

(PHY)

Radio ResourceManagement

(RRM)

Link-Layer(LL)

UMTS System Level

(USL)

Internet Multimedia

Services(IMS)

Technical Groups TG´s

PROJECTS

CORE GROUPS

SUPPORT GROUPS


PHY TG - Example of SkillsSpace-time processing (equalization, beamforming, MIMO, ST coding)Bit/Waveform-level adaptive processing and filteringAdaptive/Optimized Transceiver Architectures (e.g. link adaptation)Microscopic (space/time/frequency) channel modellingChannel estimationBlind signal processing and source separationComputational intelligent methods (e.g. neural networks)Phy-layer level performance evaluation (issues such as synchronization, equalization, channel estimation and link adaptation)Emerging topics: information geometry


RRM TG - Example of SkillsDynamic Radio Resource Allocation/Management (RRM) andCommon/Joint RRM (CRRM), Multi-access networksRRM Problems in general

• Mathematical modelling and algorithm conception

• Interference management

• Power Control, CAC, Load control, packet scheduling, channel allocation, etc.

Mathematical/Algorithmic Tools• Advanced analysis methods for radio resource management

• Linear and Non-Linear Optimization

• Heuristic Algorithms (NP hard problems, Genetic Algorithms, etc)

• Game theory, Utility Theory

System-level modelling and performance evaluation of RRM techniques


USL TG - Example of skills3GPP UMTS RAN : acquainted to 3GPP standardsIEEE WLANs (802.11x)Radio Network Algorithms and Radio ResourceManagementEvolved UMTS Terrestrial RAN modes (HSDPA andEnhanced Uplink)Development of standards-based large-scale system-levelsimulatorsPacket-level and Flow-level processing and performance evaluationQoS of Emerging Services in UMTS networks


Link-Layer TG - Example of Skills

General knowledge about the TX-RX chainincluding modulation, coding, link adaptation, link layer segmentation/encapsulation, etc.Acquainted to 3GPP standardsDevelopment of standardized link- and physical-layer level simulatorsInterfacing issues to the system-level (AVI, AcVI, VOFI)System-level impact of link/phy-layer features


IMS TG - Examples of Skills

All-IP architectures and IP-based services (e.g. VoIP)

Traffic and higher layer protocols models for simulators usedby other groups

Codec/vocoder modeling/implementation

End-to-end VoIP QoS (subjective/objective) measurement

Transport network and Application-levelsimulation/performance evaluation and issues (e.g. TCP, RTCP, etc.)

Opnet license acquired last year is being used by this TG


Industrial Cooperation


National Context of the Partnership• The partnership is inserted in the brazilian IT

incentives law

• The main objective of the law is to help fill in thegap between Brazil and more developedcountries in the fields of informatics, micro-electronics, telecommunications, among others

• Cooperative research between industry anduniversities is a well-known effective tool to boost technological advancement, as experimented successfully in other countries


Brazilian Scientific Production (comparison number of indexedpublications)

Nº País 1981 2002 Variação % 2002/1981

1 EUA 172.033 245.578 42,75

2 Japão 26.731 69.183 158,81

3 Alemanha 32.852 63.428 93,07

4 Inglaterra 32.202 56.034 74,01

5 França 22.374 44.999 101,12

6 China 1.646 33.561 1.938,94

7 Canadá 19.380 32.533 67,87

8 Itália 9.350 31.562 237,56

9 URSS/Rússia 21.599 23.441 8,53

10 Espanha 3.372 22.901 579,15

11 Austrália 10.353 21.078 103,59

12 Holanda 7.147 18.823 163,37

13 Índia 13.289 17.325 30,37

14 Coréia do Sul 230 15.643 6.701,30

15 Suécia 6.801 14.846 118,29

16 Suiça 6.083 13.192 116,87

17 Brasil 1.887 11.285 498,04


National Context (Cont.)

• In Brazil there is a need to strengthen the link between growing scientific knowledge andtechnological advancement

• Brazilian engineers and scientists need a more “product-oriented” view of their R&D work

• The IT incentives law facilitates the interactionbetween universities and IT industries in face ofthe need of technological advancement and lackof appropriately trained professionals

Thank you !

ContactContact::

Rodrigo [email protected]

www.gtel.ufc.br

A PHOTOGRAPH TRAVEL THROUGH FORTALEZA AND CEARA

Charles [email protected]

João Cesar M. [email protected]

mailto:[email protected]

http://www.gtel.ufc.br/



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GTEL –WirelessTelecomResearchGroup Federal ... · • Wireless network simulation with sophisticated propagation, mobility and traffic models ... Protected area w/ technical reports