Diversity-multiplexing tradeoff of the two-user interference channel

Adnan Raja, Pramod Viswanath

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Article number6006600
Pages (from-to)5782-5793
Number of pages12
JournalIEEE Transactions on Information Theory
Volume57
Issue number9
DOIs
StatePublished - Sep 1 2011

Keywords

  • Diversity-multiplexing tradeoff (DMT)
  • interference channel
  • multilevel superposition coding
  • outage capacity
  • slow fading

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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