Exact closed-form performance analysis of optimum combining with multiple cochannel interferers and Rayleigh fading

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Abstract

A new closed-form expression is derived for the exact bit-error probability (BEP) for optimum combining with binary phase-shift keying. The exact BEP expression is for multiple, equal power, cochannel interferers and multiple reception branches. It is assumed that the aggregate interference and noise is Gaussian and that both the desired signal and interference are subject to Rayleigh fading. The derivation starts by expressing the optimum combining decision statistic as a sum of quadratic forms of Gaussian random variables and it proceeds to average over the fading interference. The new BEP expression has low complexity as it contains only finite sums and products.

Original languageEnglish (US)
Pages (from-to)995-1003
Number of pages9
JournalIEEE Transactions on Communications
Volume51
Issue number6
DOIs
StatePublished - Jun 2003

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Diversity reception
  • Error probability performance
  • Fading channels
  • Interference suppression
  • Optimum combining

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