Performance analysis of two-hop relayed transmissions over Rayleigh fading channels

Mazen O. Hasna*, Mohamed Slim Alouini

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

187 Scopus citations


Closed form expressions for the statistics of the harmonic mean of two independent exponential variates are presented. These statistical results are then applied to study the performance of wireless communication systems with non-regenerative relays over flat Rayleigh fading channels. It is shown that these results can either be exact or tight lower bounds on the performance of these systems depending on the choice of the relay gain. More specifically, outage probability formulas for noise limited systems are obtained. Furthermore, outage capacity and bit error rate (BER) expressions for binary differential phase shift keying are derived. Finally, comparisons between regenerative and non-regenerative systems are presented. Numerical results show that the former systems clearly outperform the latter ones for low average signal-to-noise-ratio (SNR). They also show that the two systems have similar performance at high average SNR.

Original languageEnglish (US)
Pages (from-to)1992-1996
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number4
StatePublished - 2002
Externally publishedYes
Event56th Vehicular Technology Conference - Vancouver, BC, Canada
Duration: Sep 24 2002Sep 28 2002

ASJC Scopus subject areas

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


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