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2013 (Vol. 6, Issue: 07)
Article Information:

A Closed-form Expression for BER of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels with Pointing Errors

Han Li-Qiang and Wang Zhibin
Corresponding Author:  Han Li-Qiang 

Key words:  BER, free space optical communication, gamma-gamma distribution, OOK, pointing error, ,
Vol. 6 , (07): 1272-1275
Submitted Accepted Published
November 09, 2012 January 11, 2013 July 05, 2013
Abstract:

FSO communication systems links is vulnerable due to degrading effects of atmospheric turbulence and point errors. We investigate the error rate performance of Free-Space Optical (FSO) links over gamma-gamma turbulence fading channels in the presence of pointing error. Assuming Intensity-Modulation/Direct Detection (IM/DD) with On-Off Keying (OOK), a novel closed-form expression for BER of FSO is derived. Another work is a study of how the BER are affected by the atmospheric turbulence and other parameters such as the normalized beamwidth, the average transmitted optical power, the normalized jitter. Numerical examples are further provided to verify the derived analytical expressions. The results show that optimizing the beamwidth can achieve the minimum BER for a given average transmitted optical power.
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  Cite this Reference:
Han Li-Qiang and Wang Zhibin, 2013. A Closed-form Expression for BER of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels with Pointing Errors.  Research Journal of Applied Sciences, Engineering and Technology, 6(07): 1272-1275.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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