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Harnessing bursty interference

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3 Author(s)
Nilesh Khude ; Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, 61801, USA ; Vinod Prabhakaran ; Pramod Viswanath

Interference is a central feature of wireless communication. In many scenarios, interference is bursty: interfering wireless links come and go. Designing the system assuming interference to be always present is very conservative. In this paper, we take a fundamental information theoretic stand point and address the issue of statistical gain associated with bursty interference in the context of a pair of unicast interfering wireless links. Modeling the problem as a ldquodegraded message setrdquo two user Gaussian interference channel, we approximately characterize the symmetric capacity region. Our results demonstrate the fundamental existence of three regimes: one where treating interference as always there is without loss of optimality, another where one can harness as well as if interference was never there and a third where the performance is in between these two regimes.

Published in:

Networking and Information Theory, 2009. ITW 2009. IEEE Information Theory Workshop on

Date of Conference:

12-10 June 2009