Diversity-Multiplexing Tradeoff of the Two-User Interference Channel

Authors:
A. Raja;P. Viswanath
Affiliations:
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA;-
Venue:
IEEE Transactions on Information Theory
Year:
2011

Citing 0
Cited 2

Diversity-multiplexing tradeoff of the two-user interference channel

ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
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Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing

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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.