Optimization of throughput for free space optical communication system in presence of atmospheric turbulence and pointing error.

This paper presents a fuzzy logic controlled based scheme that optimizes the throughput efficiency of the free space optical (FSO) communication system. The appropriate packet length required is computed using the particle swarm optimization method. The proposed scheme appropriately acquired the transmitted packet length and modulation order as per feedback of computed Channel State Information (CSI) at the receiver. The numerical results show a 0.4–1.8 dB gain improvement in throughput in comparison to the FSO communication system using fixed packet length. [ABSTRACT FROM AUTHOR]