We investigate the performance of OFDM-based FSO transmission link under heavy rain weather conditions in Segou region, Mali. The proposed system is consisted of a single MZM modulator and a PIN photodiode that performs the optical direct detection. By selecting the convenient values for beam divergence angle and lunch power, the simulation results prove that the generated 42 Gbps OFDM data could be sent up to 1.90 km, using the Carbonneau rain attenuation Model under the worst rain conditions for the considered location.
