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Computer Science Department Seminars
Cognitive Radios: A Network Perspective
Monday 12th March, 1:15pm
Speaker: Professor Luiz Da Silva (Trinity College, Dublin)
Location: PT005
Biography:
Luiz DaSilva currently holds the Stokes Professorship in Telecommunications in the department of Electronic and Electrical Engineering at Trinity College Dublin , where he is a member of CTVR , The Telecommunications Research Centre in Ireland. He is also a full Professor in the Bradley Department of Electrical and Computer Engineering at Virginia Tech , where he has been a faculty member since 1998. His research focuses on distributed and adaptive resource management in wireless networks, and in particular cognitive radio networks and the application of game theory to wireless networks. He currently serves as a principal investigator on research projects funded by the National Science Foundation, the Science Foundation Ireland, and the European Commission under Framework Programme 7. Recent research sponsors also include DARPA, the Office of Naval Research, and BBN Technologies. Prof. DaSilva has authored over 100 refereed journal and conference papers and co-authored two books on wireless communications. In 2006 he was named a College of Engineering Faculty Fellow at Virginia Tech.
Synopsis:
The design and analysis of cognitive radios and dynamic spectrum access has at first focused on communication issues at the device and physical levels. This talk will describe our current work on wireless network issues brought about by the advent of radios that are increasingly able to autonomously adapt to the environment in which they operate. We use cooperative and non-cooperative game theory to analyse the outcomes of such autonomous adaptations and their effects on network efficiency. We also study how machine learning techniques can be applied to distributed decision making by frequency agile and reconfigurable radios. Finally, we wil discuss how cognitive radios and dynamic use of the spectrum can be incorporated in future generation mobile networks, in 4G and beyond.