Free Space Optical Wireless Communication using Lasers Array for Data Transmission

Abstract

Free-space optical (FSO) communication using Light Fidelity (Li-Fi) is a booming field with several advantages over optical fiber communication such as low cost, lower losses, lower complexity, and higher data rate. The Data transmission with the help of LASERs through a transmitter suffers with various interruptions along the channel such as obstacles, rain, wind, and fog. In this work, we have proposed a Li-Fi technology-based reliable FSO wireless communication system model using LASERs. The suggested system is implemented using an array of LASERs for uninterrupted high-speed communication. Converging lens is used just before the receiver to converge the multiple LASER beams transmitted by the array of LASERs to the receiver. The converging lens also increases the intensity of the LASERs beams at the receiver side. In this work, first we investigate the performance of the proposed system in the OptiSystem tool in terms of quality factor (Q-factor), bit error rate (BER), received power, Eye diagram with respect to the link distance. We also present a hardware prototype for the proposed communication system and analyze its performance.