High-SNR analysis of opportunistic relaying based on the maximum harmonic mean selection criterion

Xu Chen, Ting Wai Siu, Qing F. Zhou, Chung Ming Lau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


In this letter, we consider a cooperative communication network over Rayleigh fading channels. We assume that the amplify-and-forward (AF) and the selection decode-and-forward (SDF) opportunistic relaying methods are used and that the relay with the largest harmonic mean of the source-relay channel gain and the relay-destination channel gain is selected for forwarding the message to the destination. We derive the high-SNR outage probabilities, which are then compared with the simulation results. We also compare our analytical results with the high-SNR outage probabilities found when the maxmin criterion is used to select the opportunistic relay.
Original languageEnglish
Article number5491390
Pages (from-to)719-722
Number of pages4
JournalIEEE Signal Processing Letters
Issue number8
Publication statusPublished - 1 Jul 2010


  • Amplify-and-forward
  • harmonic mean
  • opportunistic relaying
  • outage probability
  • selection decode-and- forward

ASJC Scopus subject areas

  • Signal Processing
  • Applied Mathematics
  • Electrical and Electronic Engineering

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