Approaching the optimal diversity-multiplexing tradeoff in a four-node cooperative network

Chao Wang, Yijia Fan, John S. Thompson, Mikael Skoglund, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


A novel cooperative diversity transmission protocol is proposed for a four-node network, in which a single-antenna source communicates with an N-antenna destination with the help of two K-antenna half-duplex decode-and-forward (DF) relays. The proposed shifted successive DF relaying (SSDFR) protocol asymptotically achieves the optimal diversity-multiplexing tradeoff (DMT) the system can provide. The resulting DMT performance does not require complex coding strategies at the relays, extremely strong or weak inter-relay channel conditions, or feedback from the destination to the source, which highlights the advantages of the proposed protocol over state of the art techniques.

Original languageEnglish (US)
Article number5606181
Pages (from-to)3690-3700
Number of pages11
JournalIEEE Transactions on Wireless Communications
Issue number12
StatePublished - Dec 2010

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


  • Cooperative diversity
  • diversity-multiplexing tradeoff (DMT)
  • repetition coding


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