Study on LED Visible Light Communication Channel Model Based on Poisson Stochastic Network Theory

Abstract

Visible light communication is a wireless communication using visible light as the transmission medium, using the existing light-emitting diode as the light source, and achieve high-speed communication at the same time. In this paper, with the help of Poisson stochastic network theory theory, a visible light communication channel model is established, including the transmission model, light source model and impact response calculation method, and the mean value of the visible light channel SINR and the approximate expression of the probability distribution are derived. And then, based on the visible light channel model, this paper explores the indoor LED light layout method, and verifies the method by simulating the indoor optical power distribution under different LED lamp layouts. Simulation results show that, in the actual indoor visible light communication, the scheme proposed in this paper can be used to obtain the optimal layout of LED lamp in visible light communication system.