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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 29 — Oct. 10, 2011
  • pp: 5606–5614

Switched diversity approach for multireceiving optical wireless systems

Hassan Moradi, Hazem H. Refai, and Peter G. LoPresti  »View Author Affiliations


Applied Optics, Vol. 50, Issue 29, pp. 5606-5614 (2011)
http://dx.doi.org/10.1364/AO.50.005606


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Abstract

A number of existing spatial diversity schemes have been shown to improve the performance of optical wireless communication systems in diversity-rich environments. Among all, switched diversity has low complexity and is simple to implement. In this paper, an innovative spatial diversity scheme based on switched diversity is proposed. The scheme, namely switch-to-dominant combining, contributes to a higher bit error rate (BER) performance when compared to conventional switched diversity schemes, including switch-and-stay and switch-and-examine diversity. The optical multireceiver wireless system operates in a spatially correlated and lognormally distributed fading channel. Analytical analyses are conducted to demonstrate BER and processing load performance offered by the new scheme and compare them to available schemes, i.e., conventional switched combining and selection combining.

© 2011 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4510) Fiber optics and optical communications : Optical communications
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 26, 2011
Revised Manuscript: July 29, 2011
Manuscript Accepted: August 12, 2011
Published: October 3, 2011

Citation
Hassan Moradi, Hazem H. Refai, and Peter G. LoPresti, "Switched diversity approach for multireceiving optical wireless systems," Appl. Opt. 50, 5606-5614 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-29-5606


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