Diversity-multiplexing tradeoff in multiple-access channels

David N.C. Tse, Pramod Viswanath, Lizhong Zheng

Research output: Contribution to journalArticlepeer-review

415 Scopus citations


In a point-to-point wireless fading channel, multiple transmit and receive antennas can be used to improve the reliability of reception (diversity gain) or increase the rate of communication for a fixed reliability level (multiplexing gain). In a multiple-access situation, multiple receive antennas can also be used to spatially separate signals from different users (multiple-access gain). Recent work has characterized the fundamental tradeoff between diversity and multiplexing gains in the point-to-point scenario. In this paper, we extend the results to a multiple-access fading channel. Our results characterize the fundamental tradeoff between the three types of gain and provide insights on the capabilities of multiple antennas in a network context.

Original languageEnglish (US)
Pages (from-to)1859-1874
Number of pages16
JournalIEEE Transactions on Information Theory
Issue number9
StatePublished - Sep 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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