Séminaire ICI : Daniela Tuninetti
Titre du séminaire
On Interference Channels with more than Two Source-Destination Pairs.
Date et lieu
jeudi 24 novembre 2011, 14h
ENSEA, salle 384.
Cooperation among nodes in a wireless network is an emerging technique to manage interference. In this talk we focus on the simplest model for such a network: the Gaussian interference channel with two source-destination pairs where the sources cooperate. The capacity region of this channel is not known. We start by revising known achievable and outer bounds for the non-cooperative channel and then extend them to the case where the sources cooperate. To gain insights into the tightness of these bounds, we consider the generalized degrees of freedom for a symmetric network. We show that in the "strong cooperation regime'' the "binning-superposition'' achievable scheme of Yang and Tuninetti, is optimal to within 2 bits/s/Hz. For the other regimes, similar results can be obtained. The talk concludes with considerations for channels with more than two source-destination pairs.
Daniela Tuninetti received the M.S. degree in telecommunication engineering from the Politecnico di Torino, Turin, Italy, in 1998 and the Ph.D. in electrical engineering from ENST/Telecom ParisTech, Paris, France (work done at the Eurecom Institute in Sophia Antipolis, France) in 2002. From 2002 to 2004, she was a postdoctoral research associate at the School of Communication and Computer Science, EPFL/Swiss Federal Institute of Technology, Lausanne. Since January 2005, she is with the Department of Electrical and Computer Engineering, University of Illinois at Chicago, where she currently is an Associate Professor.
Her research interests are in the ultimate performance limits of wireless interference networks, with special emphasis on cognition and user cooperation.
Dr. Tuninetti was the editor-in-chief of the IEEE Information Theory Society Newsletter from 2006 to 2008 and an associate editor for the IEEE COMMUNICATION LETTERS from 2006 to 2009. She currently is an editor for the IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. She received the best student paper award at the EuropeanWireless Conference in 2002 and was the recipient of an NSF CAREER award in 2007.