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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 5, Iss. 9 — Sep. 1, 2013
  • pp: 1001–1009

Subcarrier Intensity Modulated MIMO Optical Communications in Atmospheric Turbulence

Xuegui Song and Julian Cheng  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 5, Issue 9, pp. 1001-1009 (2013)
http://dx.doi.org/10.1364/JOCN.5.001001


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Abstract

We investigate spatial diversity techniques for subcarrier phase-shift keying (PSK)-modulated optical wireless communication links over the Gamma–Gamma channels. Both repetition code and the Alamouti-type orthogonal space–time block code (OSTBC) are considered. Highly accurate series error rate expressions are derived by using a moment generating function approach with a series expansion of the modified Bessel function. Truncation error analyses and asymptotic error rate analyses are also presented. Our asymptotic analyses show that the diversity order of the studied system depends only on the effective number of small-scale cells of the scattering process in the atmosphere. Our performance analyses confirm that the repetition code outperforms OSTBC for subcarrier PSK-based systems over the Gamma–Gamma channels. The asymptotic performance loss of the Alamouti-coded system with respect to the repetition-coded system is also quantified analytically.

© 2013 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Research Papers

History
Original Manuscript: March 13, 2013
Revised Manuscript: June 3, 2013
Manuscript Accepted: July 12, 2013
Published: August 16, 2013

Citation
Xuegui Song and Julian Cheng, "Subcarrier Intensity Modulated MIMO Optical Communications in Atmospheric Turbulence," J. Opt. Commun. Netw. 5, 1001-1009 (2013)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-5-9-1001

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