Outage analysis of wireless systems over composite fading/shadowing channels with co-channel interference

  • Authors:
  • Imene Trigui;Amine Laourine;Sofiene Affes;Alex Stéphenne

  • Affiliations:
  • INRS-EMT, Montreal;School of Electrical and Computer Engeneering, Cornell University, Ithaca, NY;INRS-EMT, Montreal;Ericsson Canada, Montreal

  • Venue:
  • WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
  • Year:
  • 2009

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Abstract

This paper presents an outage analysis of wireless systems operating in gamma-shadowed Nakagami-faded environments where the desired signal also suffers from co-channel interference. The interfering signals are also subject to fading and shadowing. Based on the obtained signal to interference ratio (SIR) probability density function (pdf), closed-form expressions for the outage probability are obtained in both cases of statistically identical interferers and multiple interferers with different parameters. The effects on the aforementioned performance metric of the reuse distance and of the combined fading, shadowing and co-channel interference are analyzed subsequently. The newly derived closed-form expressions for the outage probability allow as to assess the effects of the different channel and interference parameters easily.