Qualitative Analysis of WOC Channel-Based Optical Communication System

Abstract

Wireless optical communication (WOC) also known as Free Space Optics (FSO), is one of the most promising methods for high information rate point-to-point transmission that has gained substantial attention in recent years. Compared to RF counterparts, WOC offers various advantages, including large modulation bandwidth, license-free operation, ease of installation, and immunity to electromagnetic interferences. WOC systems are based on optical technology, which has the potential to achieve even higher data transmission rates in the future. This makes it a future-proof technology that can meet the increasing demands of data-intensive applications. WOC plays a crucial role in various industries and applications. It is of great importance due to its high-speed data transmission, secure communication, immunity to interference, energy efficiency, line-of-sight communication, wide application range, scalability, and compactness. With the increasing demand for faster and more reliable wireless communication, the importance of wireless optical communication is likely to continue to grow in the future. The performance of the WOC depends upon number of factors like atmospheric condition, distance, receiver sensitivity, etc. In this paper, the main contributions are to improve the WOC system by analysis its important parameters like Q-factor, eye height, transmitter aperture diameter, and receiver aperture diameter. The system performance is evaluated for each unique case in terms of the q-factor, eye height, and bit error rate for a channel length varying between 5 and 35 km. The transmission power and the aperture diameter have a significant role on the overall system performance. Upon changing these parameters, it has been observed from the results obtained that the transmission range is directly influenced by the variations in the transmission power levels and the transmitter and receiver aperture diameters.