Analysis of VLC efficiency in optical wireless communication systems for indoor applications

Visible Light Communication (VLC) has emerged out of a promising technology within indoor optical wireless communication systems due to its dual operations of illumination and data transmission. Studies in this paper have employed techniques of simulation and modeling based on evaluating the efficiency of the VLC indoor environment. The methodology will design a simulated framework that embodies significant portions of VLC systems: light-emitting diodes (LEDs) used for transmission, optical wireless channels, and photodetectors used for receivers. Different modulation techniques have been analyzed for data rate and bit error rate (BER), such as On-Off Keying (OOK) and Orthogonal Frequency Division Multiplexing (OFDM), to deduce the results on the performance parameters including data rate, bit error rate, and reliability in indoor VLC systems. Besides, the dimensions of the room, reflecting surfaces, and interference sources are considered in the performance of the communication. The results prove that with optimal configurations, high data rates and low BER are achievable in typical indoor settings. These provide practical guidelines for deploying VLC systems in real-world applications. All these findings lead the way towards the adoption of VLC technology in smart buildings and IoT ecosystems.