Performance analysis of coherent free space optical communication systems with K-distributed turbulence

  • Authors:
  • Mingbo Niu;Julian Cheng;Jonathan F. Holzman;Liz McPhail

  • Affiliations:
  • School of Engineering, University of British Columbia, Okanagan, Kelowna, British Columbia, Canada;School of Engineering, University of British Columbia, Okanagan, Kelowna, British Columbia, Canada;University of British Columbia, Okanagan, Kelowna, British Columbia, Canada;University of British Columbia, Okanagan, Kelowna, British Columbia, Canada

  • Venue:
  • ICC'09 Proceedings of the 2009 IEEE international conference on Communications
  • Year:
  • 2009

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Abstract

Error performance of a coherent free space optical system with K-distributed turbulence is studied. A closed-form expression of the moment generating function for K-distributed turbulence is derived, and the moment generating function is used to obtain the exact error rates for binary phase shift keying (BPSK), BPSK with spatial diversity, as well as differential phase-shift keying. Based on our analytical moment generating function expression, asymptotic error rates in large signal-to-noise ratio regions are obtained.