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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 13915–13926

Exact error rate analysis of equal gain and selection diversity for coherent free-space optical systems on strong turbulence channels

Mingbo Niu, Julian Cheng, and Jonathan F. Holzman  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 13915-13926 (2010)
http://dx.doi.org/10.1364/OE.18.013915


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Abstract

Exact error rate performances are studied for coherent free-space optical communication systems under strong turbulence with diversity reception. Equal gain and selection diversity are considered as practical schemes to mitigate turbulence. The exact bit-error rate for binary phase-shift keying and outage probability are developed for equal gain diversity. Analytical expressions are obtained for the bit-error rate of differential phase-shift keying and asynchronous frequency-shift keying, as well as for outage probability using selection diversity. Furthermore, we provide the closed-form expressions of diversity order and coding gain with both diversity receptions. The analytical results are verified by computer simulations and are suitable for rapid error rates calculation.

© 2010 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 30, 2010
Revised Manuscript: June 1, 2010
Manuscript Accepted: June 5, 2010
Published: June 14, 2010

Citation
Mingbo Niu, Julian Cheng, and Jonathan F. Holzman, "Exact error rate analysis of equal gain and selection diversity for coherent free-space optical systems on strong turbulence channels," Opt. Express 18, 13915-13926 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-13915


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