Performance of generalized selection combining over Weibull fading channels

Mohamed Slim Alouini*, Marvin K. Simon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The literature is relatively sparse in performance analysis of diversity combining schemes over Weibull fading channels, despite the fact that the Weibull distribution is often found to be suitably fit for empirical fading channel measurements. In this paper, we capitalize on some interesting results due to Lieblein on the order statistics of Weibull random variables to derive exact closed-form expressions for the combined average signal-to-noise ratio (SNR) as well as amount of fading (AF) at a generalized selection combining (GSC) output over Weibull fading channels. We also use some simple AF-based mappings between the fading parameters of the Weibull distribution and those of the Nakagami, Rice, and Hoyt distributions to obtain the approximate but accurate average SNR and AF of GSC over these types of channels. The mathematical equations are validated and illustrated by some numerical examples for scenarios of practical interest.

Original languageEnglish (US)
Pages (from-to)1077-1084
Number of pages8
JournalWireless Communications and Mobile Computing
Issue number8
StatePublished - Dec 2006


  • Diversity techniques
  • Fading channel
  • Performance analysis
  • Selection combining

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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