SMF-FSO integrated wireless communication system in harsh weather conditions

Abstract The integrity of the fiber-wireless system has been designed and analyzed using OptiSystem version 7. A wireless access network was examined under four distinct fog attenuation scenarios. The distinct, thin, dense, and substantial fog simulates a channel attenuation connection. The proposed system architecture generated a new channel link utilizing fiber optics and free-space optical (FSO) communication. The findings indicated that the system exhibited optimal performance in clear weather, with a data transmission range of up to 11 km. The most subpar performance occurred with significant fog attenuation, restricting the data transmission range to merely 1 km. The system underwent testing at various transmission power levels of 3, 5, 7, and 10 dBm. The results showed that 10 dBm achieved optimal performance. The augmentation in power significantly enhanced the Q-factor and substantially diminished the BER. The system transmitted data at three distinct rates: 1, 5, and 10 Gb/s. The system’s optimal performance was 1 Gb/s, whereas the suboptimal performance was 10 Gb/s. The Q-factor diminishes as data rates increase throughout various weather conditions. A comparison was performed between the EDF and G amplifiers. The EDF amplifier exhibited superior performance regarding signal quality.