Performance of selection relaying and cooperative diversity

Abdulkareem Adinoyi, Yijia Fan, Halim Yanikomeroglu, H. Vincent Poor, Furaih Al-Shaalan

Research output: Contribution to journalArticlepeer-review

99 Scopus citations


In this paper, a two-hop cooperative multi-relay communication network is considered. Selection relaying schemes are attracting considerable attention due to their prudent bandwidth utilization and ability to provide full diversity. The recent developments in selection relaying (SR) have largely focused on information theoretic analyses such as outage performance. Some of these analyses are accurate only in high SNR regimes. This paper provides exact outage and capacity performance expressions for selection relaying and tight approximation over a sufficiently wide range of SNR regimes for selection cooperative relaying. The ε-outage capacity for SR is also provided. The motivation for this work is that practical systems operate at far lower SNR values than those supported by the high SNR analysis. Therefore, designers should be able to evaluate system performance to a reasonable degree of accuracy over practical SNR values. Simulations are used to corroborate the analytical results and close agreement is observed.

Original languageEnglish (US)
Article number5351695
Pages (from-to)5790-5795
Number of pages6
JournalIEEE Transactions on Wireless Communications
Issue number12
StatePublished - Dec 2009

All Science Journal Classification (ASJC) codes

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


  • Cooperative diversity
  • Outage probability and capacity
  • Relay selection


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