Asymptotic performance analysis of amplify-and-forward cooperative networks in a Nakagami-m fading environment

Behrouz Maham, Are Hjørungnes

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

This letter analyzes the performance of repetitionbased cooperative wireless networks using amplify-and forward relaying. The network consists of a source, R parallel relays, and a destination, and the channel coefficients are distributed as independent, non-identical, Nakagami-m. The approximated average symbol error rate (SER) is investigated. For sufficiently large SNR, this letter derives a close-form average SER when m is an integer. The simplicity of the asymptotic results provides valuable insights into the performance of cooperative networks and suggests means of optimizing them. We also use simulation to verify the analytical results. Results show that the derived error rates are tight approximations particularly at medium and high SNR.

Original languageEnglish
Pages (from-to)300-302
Number of pages3
JournalIEEE Communications Letters
Volume13
Issue number5
DOIs
Publication statusPublished - Jun 29 2009

Keywords

  • Error analysis
  • Fading
  • Nakagami-m fading
  • Performance analysis
  • Probability density function
  • Relays
  • Signal to noise ratio
  • Wireless relay networks

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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