Diversity-multiplexing tradeoff in cooperative multiple access channels

Zhiguo Ding, T. Ratnarajah, Colin Cowan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Cooperative transmission schemes can offer benefits in terms of diversity and multiplexing gain compared with conventional direct transmission by forming a virtual antenna array. In this paper, a spectrally efficient strategy is proposed for cooperative multiple access channels in a centralized communication environment with N users. With help of superposition coding, the deteriorating effect of cooperative communication on the data rate is effectively suppressed since relaying transmission does not consume extra channel use. By carefully categorizing the outage events, the diversity-multiplexing tradeoff can be obtained, which shows that the proposed strategy can achieve optimal tradeoff for multiplexing gains 0 ≤ r ≤ 1 whereas the compared cooperative scheme is only optimal for 0 ≤ r ≤ 1/N.

Original languageBritish English
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Number of pages6
StatePublished - 2007
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486


Conference2007 IEEE International Conference on Communications, ICC'07
Country/TerritoryUnited Kingdom
CityGlasgow, Scotland


  • Capacity
  • Cooperative transmission
  • Diversity-multiplexing tradeoff
  • Multiple-input multiple-output


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