Exact outage analysis of dual-hop fixed-gain AF relaying with CCI under dissimilar nakagami-m fading

Fawaz S. Al-Qahtani, Jing Yang, Redha M. Radaydeh, Caijun Zhong, Hussein Alnuweiri

Research output: Contribution to journalArticle

11 Citations (Scopus)


This letter studies the outage probability of fixed-gain amplify-and-forward dual-hop relaying system in the presence of co-channel interference (CCI). Assuming that the relay and the destination terminals are subject to both CCI and additive white noise, and the envelopes of the channels follow dissimilar Nakagami-m distributions, an exact expression for the outage probability of the system is derived. The result is applicable for arbitrary numbers of interfering signals at receiving terminals and can be efficiently evaluated. In addition, it enables us to study the effect of CCI at either the relay or the destination as special cases. The analytical results are validated by simulations. The simulated results show that the outage performance of the system is less sensitive to the interference at the destination.

Original languageEnglish
Article number6324367
Pages (from-to)1756-1759
Number of pages4
JournalIEEE Communications Letters
Issue number11
Publication statusPublished - 2012



  • amplify-and-forward protocol
  • co-channel interference
  • dual-hop communication
  • fixed-gain relaying
  • Nakagami-m fading
  • Outage probability

ASJC Scopus subject areas

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

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