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Description

Free-space optical communication (FSO) systems refer to the high-speed transmission of point to point data using laser beams in vacuum, space or air. They have their performance levels limited under different weather conditions. To carry out this study, we collected monthly weather data for Abidjan from January 2018 to December 2022 on the website Weather history. Thus, transmission channel characterization plays an important role in FSO link performance analysis. This research focuses on analyzing the transmission performance of Free Space Optical (FSO) systems under Abidjan weather conditions. In it, the channel characterization of FSO technology from the atmospheric point of view in Abidjan was stud- ied in depth using the Gamma-gamma distribution model. Attenuation levels caused by meteorological factors such as rain, fog, humidity, tem- perature and pressure were evaluated. Rain was found to be the most attenuating factor for FSO signals in Abidjan, with attenuation levels of 3 dB/Km. The performance of these systems was further analyzed in terms of signal-to-noise ratio, bit error rate and eye diagram. The results obtained (BER = 10^{−13}) show that the attenuation levels observed do not hinder the smooth operation of FSO systems in Abidjan, particularly for telecoms applications.