Performance bounds for two-way amplify-and-forward relaying based on relay path selection

Kyu Sung Hwang, Young-Chai Ko, Mohamed Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

65 Citations (Scopus)


In this paper, we consider two-way amplify-and-forward relaying communication over a multiple relays network in which the best relay node is selected among others. Our proposed scheme picks for duplex communication between the source and the destination only the relay which provides the best end-to-end performance based on the instantaneous channel information. Similar to the relay selection method proposed in [1], our scheme also does not require any explicit communications among the relays. Based on the proposed relay selection criterion, we offer the performance bounds on the average sum-rate, average symbol error rate, outage probability over identically, independent distributed Rayleigh fading channels. Further, our numerical examples show that our proposed scheme provides considerable sum-rate gains and offers an increasing a diversity order as the number of relay candidates increases.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Publication statusPublished - 2009 Oct 12
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 2009 Apr 262009 Apr 29


OtherVTC Spring 2009 - IEEE 69th Vehicular Technology Conference



  • Amplify-and-forward relaying
  • And performance bounds
  • Half-duplex transmission
  • Opportunistic relaying
  • Two-way relaying

ASJC Scopus subject areas

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

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