News

<< >>

Final CREaTION Workshop

Sala do Senado da Reitoria da Universidade de Aveiro 5 of February 2016 Program ProgramCREaTIONWorkshop 10h00 – Opening Session 10h10 – Project Research Outcomes 10h10 – Prof. João Canas Ferreira, Inesc-Tec and FEUP Universidade do Porto 10h30 – Prof. Fernando Velez, IT Lisboa and Universidade

Workshop Conjunto dos Projetos CREaTION e Disruptive em Linhas de Investigação de Excelência

Instituto de Telecomunicações, ISCTE-IUL Av. Das Forças Armadas, Sala C201, Edifício II (2.º andar), Lisboa 26 de Junho de 2015 Programa  Sessão 1:  11:00-12:30  11:00     Relaying and Cognitive Radio for Wireless Communications                 Prof. Jae Hong Lee (Distinguished Lecturer of IEEE Vehicular Technology            Society)

3º Encontro do Projeto CREaTION ISCTE-IUL, Lisboa, 26 de Junho de 2015

Chamada de Contribuições O 3º Encontro do Projeto CReATION (Cognitive Radio Transceiver Design for Energy Efficient Data Transmission) pretende ser um ponto de encontro e de intercâmbio técnico para todos os interessados nas áreas em que o projeto está envolvido: • Projeto dos componentes para

Fernando J. Velez and Marja Matinmikko, “Technical Approaches for Improved Spectrum Sharing,” Chapter in the book Cognitive Radio Policy and Regulation: Techno-Economic Studies to Facilitate Dynamic Spectrum Access, edited by Arturas Arturas Medeisis, and Oliver Holland, Springer, London, UK, 2014, pp. 117-138. Dariusz Wiecek and

Luís M. Borges, Fernando J. Velez and António S. Lebres, “Survey on the Characterization and Classification of Wireless Sensor Networks Applications,” IEEE Communications Surveys and Tutorials, Apr. 2014. Jessica Acevedo, Daniel Robalo, Fernando J. Velez, “Jessica Acevedo Flores, Daniel Robalo and Fernando J. Velez, “Transmitted

Ricardo Fernandes

rdf-rsg-300x209

Ricardo Fernandes was born in Aveiro, Portugal, in 1987. He is a researcher at the Instituto de Telecomunicações, in Aveiro, and is currently pursuing a PhD degree in electrical engineering, at the Universidade de Aveiro. He holds a MSc degree in Electronic and Telecommunication Engineering from the same university, obtained in 2010. In 2006/07 and 2007/08 he was awarded with merit scholarships for exceptional academic performances. He was also the winner of the 2011 Fraunhofer Portugal Challenge, under the MSc category. His main research interests include wireless power transmission, energy harvesting, and wireless passive sensor networks.

CREaTION Workshops

banner_high

1st Workshop from the CREaTION Project in Research Lines of Excellence at University of Beira Interior, Instituto de Telecomunicações - Department of Electromechanical Engineering (DEM), Faculty of Engineering and Health Sciences Faculty, Covilhã, Portugal, 18 November 2013.

IMG_1075_ IMG_1085 IMG_1084 IMG_1086 IMG_1083 IMG_1076IMG_1088 IMG_1087 IMG_1089 IMG_1081 IMG_1079 IMG_1080 IMG_1078 IMG_1077

 

1st Workshop from the CREaTION Project on the 18 November 2013

1st Workshop from the CREaTION Project in Research Lines of Excellence

Instituto de Telecomunicações, Departamento de Engenharia Electromecânica

Faculdade de Engenharia (Sala dos Conselhos, manhã)

Faculdade de Ciências da Saúde (Anfiteatro Verde, almoço e tarde)

Universidade da Beira Interior

18 November 2013

 Sessão da manhã, Faculdade de Engenharia, Sala dos Conselhos

11:00 Henrique Saraiva, Development of electromagnetic energy harvesting devices applied to WBANs Presentation_1

12:00 Equipa do CREaTION, Demonstrador de dispositivos de recolha de energia electromagnética integrados em vestuário e aplicados a redes sem fios de área corporal (RF energy harvesting devices applied to WBANsPoster

 

Sessão da tarde, Faculdade de Ciências da Saúde, Anfiteatro Verde

14:00 José Machado da Silva and João Carvalho, Applications of software defined radios to eHealth Presentation_2

14:25 Luís M. Borges, Rodolfo Oliveira and Fernando J. Velez, Opportunistic electromagnetic energy harvesting enabled IEEE 802.15.4 MAC protocols employing multi-channel scheduled channel polling Presentation_3

14:50 Norberto Barroca, Luís M. Borges, Fernando J. Velez and Periklis Chatzimisios, Innovative energy efficient IEEE 802.15.4 MAC sub-layer protocol with packet concatenation employing RTS/CTS and Block Acknowledgment Presentation_4

Pausa para café

15:15 André Prata, All digital transmitter for multi-carrier, multi-standard communications

15:40 Diogo Ribeiro, Synchronous Frequency-Domain Measurements for the Extraction of X-parameters in Digital to Analog Transmitters Presentation_6

16:05 Daniel Malafaia, Distributed spectrum sensing methods for spectrum holes detection Presentation_7

16:30 Jessica Acevedo Flores, Daniel Robalo and Fernando J. Velez, Cost/revenue performance of LTE employing spectrum aggregation with multi-band user allocation over two frequency bands Presentation_8

16:55 António Espirito Santo, Energy harvesting from organic materials Presentation 9

RF Energy Harvesting Devices

In the context of the CREaTION (EXCL/EEI-TEL/0067/2012) project, contributions will be given in the development of innovative circuits for electromagnetic energy harvesting. A five-stage Dickson voltage multiplier prototype with no match impedance has already been conceived and presented in the IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications Conference.

DSC_0212

Future work on the development of harvesting devices, includes, a match impedance circuit by means of stubs, where they can be terminated by a short or an open circuit, as well as, improving  the  process  of  manufacturing  the  printed circuit  boards,  enabling to reach values for the conversion efficiency closer to the ones obtained by means of simulation.

DSC_0183

Conference Papers

Norberto Barroca, Paulo T. Gouveia and Fernando J. Velez, “Impact of Switching Latency Times in Energy Consumption of IEEE 802.15.4 Radio  Transceivers,”  in  Proc.  of  The  9th  Conference  on Telecommunications –  Conftele 2013, Castelo Branco, Portugal, May 2013.

Norberto Barroca, Luís M. Borges, Jorge Tavares, Fernando J. Velez, Raúl Chavéz-Santiago and Ilangko Balasingham “Identification of the Opportunistic  Radio  Frequency  Bands  for  Energy  Harvesting  in Wireless  Body  Area  Networks,”  in  Proc.  of  the  9th  Conference  on Telecommunications –  Conftele 2013, Castelo Branco, Portugal, May 2013.

Norberto  Barroca,  Fernando  J.  Velez  and  Periklis  Chatzimisios, “Block Acknowledgment Mechanisms for the optimization of channel use  in  Wireless  Sensor  Networks”,  in  Proc.  of  the  24th  Annual  IEEE International  Symposium  on  Personal,  Indoor  and  Mobile  Radio Communications (PIMRC 2013), London, UK, September 2013.

Norberto  Barroca,  Henrique  M.  Saraiva,  Paulo  T.  Gouveia,  Jorge Tavares,  Luís  M.  Borges,  Fernando  J.  Velez,  Caroline  Loss,  Rita Salvado,  Pedro  Pinho,  Ricardo  Gonçalves,  Nuno  Borges  Carvalho, Raúl  Chavéz-Santiago,  Ilangko  Balasingham,  “Antennas  and  Circuits for Ambient RF Energy Harvesting in Wireless Body Area Networks”, in  Proc.  of  the  24th  Annual  IEEE  International  Symposium  on  Personal,  Indoor  and  Mobile  Radio  Communications  (PIMRC  2013), London, UK, September 2013.

Henrique  M.  Saraiva,  Luís  M.  Borges,  Norberto  Barroca,  Paulo  T. Gouveia,  Jorge  Tavares,  Fernando  J.  Velez,  Caroline  Loss,  Rita Salvado,  Pedro  Pinho,  Ricardo  Gonçalves,  Nuno  Borges  Carvalho, Raúl  Chavéz-Santiago,  Ilangko  Balasingham,  “Experimental Characterization  of  Wearable  Antennas  and  Circuits  for  RF  Energy Harvesting  in  WBANs”,  submitted  to  The  IEEE  79th  Vehicular Technology Conference: VTC2014-Spring, Seoul, Korea, February 2014.

Norberto Barroca, Fernando J. Velez and Periklis Chatzimisios, “IEEE 802.15.4 MAC Layer Performance Enhancement by employing RTS/CTS combined with Packet Concatenation”, submitted to IEEE International Conference on Communications (ICC), Sydney, Australia, Jun. 2014.

Luís M. Borges, Rodolfo Oliveira and Fernando J. Velez, “A Two-Phase Contention Window Control Scheme for Decentralized Wireless Networks”, submitted to the IEEE Wireless Communications and Networking Conference (WCNC 2014), Istanbul, Turkey, April 2014.

Rodolfo Oliveira, Luís M. Borges, and Fernando J. Velez, “A Double Stage Random Access Scheme for Decentralized Single Radio Cognitive Networks”, in Proc. of The Tenth International Symposium on Wireless Communication Systems (ISWCS’13), Ilmenau, Germany, August 2013.

Luís M. Borges, Fernando J. Velez, António S. Lebres and Norberto Barroca, “Frame Capture Effect and Reliability Based Decider Implementation in the MiXiM IEEE 802.15.4 Simulator Framework”, submitted to the 7th International ICST Conference on Simulation Tools and Techniques (SIMUTools 2014), Lisbon, Portugal, March 2014.

Jessica Acevedo Flores, Daniel Robalo and Fernando J. Velez, “Transmitted Power Formulation for the Implementation of Spectrum Aggregation in LTE-A over 800 MHz and 2 GHz Frequency Bands,” in Proc. of WPMC 2013 – International Symposium on Wireless Personal Multimedia Communications, Atlantic City, New Jersey, USA, June 2013.