Analytical Performance Evaluation of an LDPC Coded FSO Communication System under Strong Atmospheric Turbulence

FSO communication frameworks are impeded by unfavorable climate conditions, for example, rain, haze, cloud, snow and environmental turbulences. In any case, to limit the dangerous impact of atmospheric turbulence, modulation technique itself isn't adequate to enhance the exhibitions of FSO communication framework. In that angle the channel coding with various tweak strategies have just been accounted for in several publications. A large portion of the examination works depend on PC reproduction. Here we provide an investigative methodology to assess the BER execution of a FSO correspondence framework by utilizing LDPC code in RF carrier with Q-ary Pulse Position modulation under the influence of atmospheric turbulence. Execution outputs are assessed as far as BER for both uncoded and LDPC coded framework. Examination demonstrated that LDPC coded framework gives huge enhancement of BER under coded condition with 8-ary Optical PPM tweak organize.