Archive > Volume 12 Issue 4 > 2016,12(4):294-298. DOI:10.1007/s11801-016-6061-y CSTR:[cstr] Prev Next
Performance analysis of relay-aided free-space optical communication system over gamma-gamma fading channels with pointing errors
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Abstract:
The average bit error rate (ABER) performance of a decode-and-forward (DF) based relay-assisted free-space optical (FSO) communication system over gamma-gamma distribution channels considering the pointing errors is studied. With the help of Meijer''s G-function, the probability density function (PDF) and cumulative distribution function (CDF) of the aggregated channel model are derived on the basis of the best path selection scheme. The analytical ABER expression is achieved and the system performance is then investigated with the influence of pointing errors, turbulence strengths and structure parameters. Monte Carlo (MC) simulation is also provided to confirm the analytical ABER expression.
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