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Optical Engineering

Performance analysis of free-space optical systems employing binary polarization shift keying signaling over gamma-gamma channel with pointing errors
Author(s): Prabu Krishnan; D. Sriram Kumar
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Paper Abstract

Free-space optics (FSO) has become one of the prominent solutions to the bandwidth limitation of radio frequency links. But, the FSO system performance is purely dependent on atmospheric conditions. Atmospheric turbulence, scintillation, and pointing errors are the major deteriorations in FSO communications. Multiple input multiple output (MIMO) or spatial diversity structure can improve the performance of the FSO system. The bit error rate (BER) performance of the MIMO FSO system employing binary polarization shift keying using optimal combining is analyzed. We have derived a closed form expression for the BER of the system, and the results are compared against the single input single output system.

Paper Details

Date Published: 18 July 2014
PDF: 5 pages
Opt. Eng. 53(7) 076105 doi: 10.1117/1.OE.53.7.076105
Published in: Optical Engineering Volume 53, Issue 7
Show Author Affiliations
Prabu Krishnan, National Institute of Technology, Tiruchirappalli (India)
D. Sriram Kumar, National Institute of Technology, Tiruchirappalli (India)

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