Energy Efficient Multiple Visible Light Communication Access Points (VAP)

The rise in various activities such as the internet of things, gaming platforms, and online teaching platforms have led to expanding demands for boundless data in wireless communication. This in turn stipulates a broad range of spectrum and high data rates. Being a traditional way of communication, the radio frequency (RF) spectrum is overburdened day by day. Amidst the innumerable results, visible light communication (VLC) has been considered as a reassuring wireless technique to acknowledge the insufficiency of RF spectra, due to its superiority in transmission capacity, channel capacity, and link safety. It is one of the best solutions for indoor communication in the existing literature. In spite of its several advantages, VLC suffers from a major challenge of the energy efficiency of VAP. In VLC technology, the main aim is to employ visible light for communication as well as luminosity. Thus, there must be proper trade-off between these two. In this article, we propose an energy-efficient VLC system based on the strategic sleeping of VAP. Herein, multiple access points (APs) are considered, and based on the proposed methodology, theoretical and numerical analysis is done for energy consumption. Further, the ideal probability of the VAP is derived and analyzed from which it is inferred that it is needless for all the VAPs to be active all the time for communication with the User equipment (UE) at a specific position. Additionally, a comparison between Multiple VAP and Single VAP is carried out.