Link-failure probabilities for practical cooperative Relay networks

J. Luo, R. S. Blum, L. J. Cimini, L. J. Greenstein, A. M. Haimovich

Research output: Contribution to journalConference articlepeer-review

78 Scopus citations


In this paper, practical cooperative diversity schemes are proposed and investigated. The outage probability is used to evaluate four constant-power decode-and-forward cooperative schemes: Pre-Select One Relay, Best-Select Relay, Simple Relay, and ST-Coded Relay. Two new methods for improving these approaches, called simple distributed power allocation and m-Group ST-Coded Relay, are proposed. It is shown that the performance of Simple Relay and ST-Coded Relay is improved significantly by employing the proposed power allocation without an increase in implementation complexity. Similarly, m-Group ST-Coded Relay gains in lower complexity with only a slight degradation in performance. Performance of the various schemes in a network is evaluated through the link-failure probability.

Original languageEnglish (US)
Pages (from-to)1489-1493
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number3
StatePublished - 2005
Event2005 IEEE 61st Vehicular Technology Conference -VTC 2005 - Spring Stockholm: Paving the Path for a Wireless Future - Stockholm, Sweden
Duration: May 30 2005Jun 1 2005

All Science Journal Classification (ASJC) codes

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


  • Cooperative diversity
  • Decode-and-forward
  • Link-failure probability
  • Outage probability
  • Relay networks


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