Outage probability of full-duplex fixed-gain AF relaying in Rayleigh fading channels

Ibrahim Altunbaş, Asil Koç, Abbas Yongaçoǧlu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)


In this study, we investigate the outage performance of full-duplex fixed-gain amplify-and-forward (AF) relaying systems over Rayleigh fading channels. New exact outage probability expression of full-duplex fixed-gain AF relaying is derived analytically in single-integral form by using the cumulative distribution function (CDF) approach. The analytical results for outage performance are verified by Monte-Carlo type computer simulations. We observe that the error floor caused by loop-interference at the full-duplex fixed-gain relay occurs for larger values of the loop interference power. Furthermore, the results are compared with full-duplex variable-gain AF relaying results given in the literature. In addition to simpler structure advantage of fixed-gain relaying compared to variable-gain relaying, it is shown that full-duplex fixed-gain AF relaying provides better outage performance. Contrary to the full-duplex fixed-gain AF relaying, the error floor is observed for the full-duplex variable-gain AF relaying for even small values of the loop interference power.

Original languageEnglish
Title of host publication2016 Wireless Days, WD 2016
EditorsThierry Gayraud, Manuel P. Ricardo, Emmanuel Chaput, Samir Medjiah, Andre-Luc Beylot, Pascal Berthou
PublisherIEEE Computer Society
ISBN (Electronic)9781509024940
Publication statusPublished - 27 Apr 2016
EventWireless Days, WD 2016 - Toulouse, France
Duration: 23 Mar 201625 Mar 2016

Publication series

NameIFIP Wireless Days
ISSN (Print)2156-9711
ISSN (Electronic)2156-972X


ConferenceWireless Days, WD 2016

Bibliographical note

Publisher Copyright:
© 2016 IEEE.


  • amplify and forward
  • cooperative communications
  • fixed-gain
  • Full-duplex relaying
  • outage analysis


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