Research Progress on Indoor Visible Light-Source Layouts

In the indoor visible light communication system, in order to ensure that many users in different directions can get better communication quality and achieve uniform optical power coverage on the receiving surface, it is necessary to reasonably optimize the layout of the light source. Reasonable light source layout design can achieve stable signal transmission, improve the signal-to-noise ratio of the transmitted signal and reduce inter-symbol interference, and help to improve the communication rate. This chapter briefly describes the proposal, development, and unique advantages of visible light communication, summarizes the principle and channel model of visible light communication system, summarizes and compares the light source layout and design of visible light communication system, explains its development context and research progress, and finally summarizes the development direction of visible light communication layout and the development trend of design methods.