Asymptotic BER analysis of FSO with multiple receive apertures over ℳ -distributed turbulence channels with pointing errors

In this paper, we consider a free-space optical (FSO) communication with multiple receive apertures over ℳ -distributed turbulence channels with pointing errors. In particular, we consider two different combining schemes at the receiver: optimal combining (OC) and selection combining (SC). With thes...

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Bibliographic Details
Published in:Optics express 2014-07, Vol.22 (15), p.18238-18245
Main Authors: Yang, Liang, Hasna, Mazen Omar, Gao, Xiqi
Format: Article
Language:English
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Summary:In this paper, we consider a free-space optical (FSO) communication with multiple receive apertures over ℳ -distributed turbulence channels with pointing errors. In particular, we consider two different combining schemes at the receiver: optimal combining (OC) and selection combining (SC). With these setups, the statistic characters of the instantaneous electrical signal-to-noise ratio (SNR) are derived. Then, using the cumulative density function (CDF)-based method, we analyze the asymptotic bit-error rate (BER) performance. The derived results help quantifying the diversity order of our considered systems.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.018238