Fi-Wi integrated optical communication system in FSO

The wireless fiber optic system was designed and evaluated using OptiSystem software version 7.7. The wireless access network was tested under various weather conditions. The effects of fog were simulated at varying levels (light, thin, thick, and heavy) on the channel link. The proposed system design established a new channel link using fiber optics and free-space optical communication (FSO) technology. The results indicated that the system performed optimally in clear weather, with a data transmission range of up to 25 km. The worst performance was observed during dense fog conditions, which restricted the data transmission range to merely 1.37 km. The system underwent testing at various transmission power levels of 3, 5, and 10 dB m. Increasing the power resulted in a significant improvement in the quality factor and a substantial decrease in the bit error rate. The system transmitted data at three different speeds: 3, 5, and 10 Gbps. Optimal system performance was achieved at 10 Gbps because, as the data volume increases, the range decreases, leading to an improved quality factor. It is known that the quality factor decreases as data transmission rates increase under different weather conditions.