Diversity-multiplexing tradeoff of the two-user interference channel

Authors:
Adnan Raja;Pramod Viswanath
Affiliations:
Coordinated Science Laboratory, University of Illinois, Urbana-Champaign, IL;Coordinated Science Laboratory, University of Illinois, Urbana-Champaign, IL
Venue:
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Year:
2009

Citing 7
Cited 0

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Abstract

Diversity-Multiplexing tradeoff (DMT) is a coarse high SNR approximation of the fundamental tradeoff between data rate and reliability in a slow fading channel. In this paper, we characterize the fundamental DMT of the two-user single antenna Gaussian interference channel. We show that the class of multilevel superposition coding schemes universally achieves (for all fading statistics) the DMT for the two-user interference channel. For the special case of symmetric DMT, when the two users have identical rate and diversity gain requirements, we characterize the DMT achieved by the Han-Kobayashi scheme, which corresponds to two level superposition coding.