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Binary-Input Non-Line-of-Sight Solar-Blind UV Channels: Modeling, Capacity and Coding |
Journal of Optical Communications and Networking, Vol. 4, Issue 12, pp. 1008-1017 (2012)
http://dx.doi.org/10.1364/JOCN.4.001008
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Abstract
There has been recent interest in establishing non-line-of-sight links in the solar-blind ultraviolet region for outdoor optical wireless communications. This paper presents a novel channel model combining both photon propagation and detection statistics. The channel capacity with binary inputs is numerically computed for on–off keying and 4-pulse-position modulation (4-PPM) at different baud rates. To approach the capacity, error control coding is applied and a message passing decoding technique is outlined. Simulation results for a running example through the paper indicate that, at a given power, there is an optimum transmitted baud rate that maximizes the achievable data rate on such links. With the application of proper coding techniques, it is demonstrated that a near fifty-fold increase in rate over previous reported designs for this channel is feasible.
© 2012 OSA
OCIS Codes
(290.1310) Scattering : Atmospheric scattering
(350.0350) Other areas of optics : Other areas of optics
(060.2605) Fiber optics and optical communications : Free-space optical communication
ToC Category:
Research Papers
History
Original Manuscript: July 16, 2012
Revised Manuscript: October 15, 2012
Manuscript Accepted: October 15, 2012
Published: November 20, 2012
Citation
Mohamed A. El-Shimy and Steve Hranilovic, "Binary-Input Non-Line-of-Sight Solar-Blind UV Channels: Modeling, Capacity and Coding," J. Opt. Commun. Netw. 4, 1008-1017 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-12-1008
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