Outage probability of dual-branch diversity systems in presence of co-channel interference

  • Authors:
  • Hongchuan Yang;M. -S. Alouini

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA;-

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2003

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Abstract

Outage probability of two low-complexity dual-branch diversity schemes with the consideration of both minimum carrier-to-interference ratio and the carrier-to-noise ratio constraints is investigated. More specifically, closed-form expressions for this outage probability for selection combining and switch and stay combining in single-interferer Rayleigh fading environment are derived, first under the assumption of perfectly estimated independent diversity paths, then by taking into account the effect of branch correlation and outdated/imperfect channel estimates. When applicable, the results obtained as special cases of the offered generic closed-form expressions are compared with those previously reported in the literature. In addition, some numerical examples are provided and discussed.