Events Calendar

Cognitive Radio Channels: Capacity for Certain Discrete Memoryless Channels and Capacity to Within 1

Speaker: Stefano Rini,
Electrical and Computer Engineering,
University of Illinois at ChicagoAbstract: The capacity region of the interference channel in which one transmitter non-causally knows the message of the other, termed the cognitive channel, has remained open since its inception in 2005. A number of subtly differing achievable rate regions and outer bounds have been derived, some of which are tight under specific conditions. In this talk we present a new unified inner bound for the discrete memoryless cognitive interference channel that encompasses all known achievable rate regions. We also present an outer bound that unifies some known outer bounds. We show that our outer bound is tight for the deterministic linear high SNR approximation of the Gaussian cognitive channel, and that it gives capacity to within 1.8 bits for the Gaussian channel.Biography: Stefano Rini received his bachelor's degree in Computer Science from Politecnico di Milano, Como (Italy) in 2005. He is currently a PhD student in Electrical and Computer Engineering and a MA student in Statistics at the University of Illinois at Chicago, IL USA . He is an active researcher in multi-user information theory and cognitive networks.Host: Gerhard Kramer, gkramer@usc.edu, EEB 536, x07229

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos