Cooperative Communication in Free Space Optical Systems
نویسنده
چکیده
We have investigated the performance improvement of cooperative free space optical (FSO) communication over single input single output (SISO) system in this paper. Bit error rate (BER) analysis for gammagamma channel model with additive white Gaussian noise (AWGN) has been demonstrated for SISO and cooperative system as well where the performance improvement with different combining techniques in cooperative system has been depicted in this paper. Significant performance improvement is achieved in case of asymmetrical channel model where direct link is facing higher turbulence than the indirect link as compared to symmetrical channel model where all the links are considered to be at same turbulence level. We have shown very good BER performance by using amplify and forward (AF) scheme over decode and forward (DF) scheme for cooperative FSO systems.
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تاریخ انتشار 2013