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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 19 — Sep. 13, 2010
  • pp: 20445–20454

Average capacity of FSO links with transmit laser selection using non-uniform OOK signaling over exponential atmospheric turbulence channels

Antonio García-Zambrana, Beatriz Castillo-Vázquez, and Carmen Castillo-Vázquez  »View Author Affiliations


Optics Express, Vol. 18, Issue 19, pp. 20445-20454 (2010)
http://dx.doi.org/10.1364/OE.18.020445


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Abstract

A new upper bound on the capacity of power- and bandwidth-constrained optical wireless links using selection transmit diversity over exponential atmospheric turbulence channels with intensity modulation and direct detection is derived when non-uniform on-off keying (OOK) formats are used. In this strong turbulence free-space optical (FSO) scenario, average capacity is investigated subject to an average optical power constraint and not only to an average electrical power constraint when the transmit diversity technique assumed is based on the selection of the optical path with a greater value of irradiance. Simulation results for the mutual information are further demonstrated to confirm the analytical results for different diversity orders.

© 2010 Optical Society of America

OCIS Codes
(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: July 6, 2010
Revised Manuscript: August 26, 2010
Manuscript Accepted: September 3, 2010
Published: September 10, 2010

Citation
Antonio García-Zambrana, Beatriz Castillo-Vázquez, and Carmen Castillo-Vázquez, "Average capacity of FSO links with transmit laser selection using non-uniform OOK signaling over exponential atmospheric turbulence channels," Opt. Express 18, 20445-20454 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-19-20445


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