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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 10 — Oct. 1, 2011
  • pp: 780–789

Outage Capacity for MISO Intensity-Modulated Free-Space Optical Links With Misalignment

Ahmed A. Farid and Steve Hranilovic  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 3, Issue 10, pp. 780-789 (2011)
http://dx.doi.org/10.1364/JOCN.3.000780


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Abstract

The outage capacity of slow-fading free-space optical channels is analyzed for a multiple-input/single-output configuration in the presence of atmospheric and misalignment fading. A spatial repetition code is considered at the transmitter and a closed-form expression for the outage capacity is developed. In addition, a simple asymptotic closed-form expression is derived at high signal-to-noise ratio. Two methods are considered for system design using the derived outage capacity results with different beam configurations. The outage capacity is optimized over a predetermined set using numerical techniques. Using the asymptotic form of the outage capacity, however, a closed form for the optimum beamwidth is derived. A comparison of simulation results in both cases gives very similar performance indicating the effectiveness of the asymptotic form to provide a near-optimum expression for the beamwidth.

© 2011 OSA

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Research Papers

History
Original Manuscript: May 19, 2011
Revised Manuscript: August 12, 2011
Manuscript Accepted: August 12, 2011
Published: September 14, 2011

Citation
Ahmed A. Farid and Steve Hranilovic, "Outage Capacity for MISO Intensity-Modulated Free-Space Optical Links With Misalignment," J. Opt. Commun. Netw. 3, 780-789 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-10-780


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