Accurate outage analysis of incremental decode-and-forward opportunistic relaying

Kamel Tourki, Hongchuan Yang, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


In this paper, we investigate a dual-hop decode-and-forward opportunistic relaying scheme where the selected relay chooses to cooperate only if the source-destination channel is of an unacceptable quality. We first derive the exact statistics of received signal-to-noise (SNR) over each hop with co-located relays, in terms of probability density function (PDF). Then, the PDFs are used to determine very accurate closed-form expression for the outage probability for a transmission rate R. Furthermore, we perform asymptotic analysis and we deduce the diversity order of the scheme. We validate our analysis by showing that performance simulation results coincide with our analytical results over different network architectures. © 2011 IEEE.
Original languageEnglish (US)
Pages (from-to)1021-1025
Number of pages5
JournalIEEE Transactions on Wireless Communications
Issue number4
StatePublished - Apr 2011

ASJC Scopus subject areas

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


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