Dual bands cognitive radio systems: advanced sensing algorithms, and cooperative and cognitive radio resource management
Speaker: Van Tâm Nguyen, Telecom ParisTech
Date: June 24th, 2013
Place: room 102, Faculty of Science Bldg. 7, Hongo Campus, The University of Tokyo
Wireless technology is rapidly proliferating into all aspects of computing and communication. The explosion of wireless applications and new services creates a very huge demand for more radio spectrum. However, most easily usable spectrum bands have been allocated, traditional static spectrum allocation strategies drive to temporal and geographical holes to the spectrum usage. These considerations have motivated the search for breakthrough radio technologies that can evolve to meet future demands in terms of spectrum efficiency, energy efficiency, quality of service, quality of experience, and application performance. This vision of ubiquitous wireless at the edge of the Internet is attractive with many social and individual benefits. However, the anticipated exponential growth of wireless devices and applications is subject to the ability to design radio technologies that continue to work well with increasing deployment density under huge requirement of flexibility and reconfigurability. Given the fact that spectrum is a limited resource, this calls for disruptive technology innovation in the radio field.
Cognitive radio system offers the promise of being just this disruptive technology innovation that will enable the future wireless world. CRS will fulfill the needs for seamless mobile connectivity and optimum spectrum management.
This talk will focus on dual-band cognitive radio systems targeting high-energy efficiency and high spectrum efficiency for future cellular communications (4G and beyond). Especially, we will talk about TV white space and 2.6 GHz bands and their spectrum aggregation. The enabling sensing algorithms and radio resource management mechanisms to enhance the cognitive radio features in future cellular systems.
Van Tam Nguyen received the Diplôme d’Ingénieur from Ecole Supérieure d’Electricité (Supelec – www.supelec.fr) and a M.Sc. degree in automatic and signal processing from University Paris Sud (www.u-psud.fr) in 2000, and a Ph.D. degree in Communications and Electronic from Ecole Nationnale Supérieure des Télécommunications (Telecom ParisTech- www.telecom-paristech.fr) in 2004. From 2000 to 2005 he worked mainly on European Project SPRING (Scientific Multidisciplinary Network for metering – IST-1999-12342) with Schlumberger and Ecole Nationale Superieure des Telecommunications. Since 2005 he has been at Telecom ParisTech, where he is currently an associate professor. He has held visiting positions at The University of Aizu (Japan) and University of California at Berkeley. He was also a rank A guest researcher of NICT – Japan from July 2012 to June 2013. His main research interests are in the areas of cognitive radio systems, software defined radio, frequency-agile transceiver and high performance ADC.