基于改进粒子群算法的室内可见光通信系统灯源布局

Light source layout of indoor visible light communication system based on Improved particle swarm algorithm

针对传统室内可见光通信(VLC)系统中光源分布的不均匀性导致的通信盲区和通信质量不平稳等问题,提出一种位置和灯源参数联合优化的方法。该方法在不改变传统布局的总功率前提下进行发光二极管(LED)阵列的重新分配,其次遍历搜寻各LED阵列的最优位置,最后运用改进的粒子群优化(PSO)算法对各LED阵列中的参数进行优化。仿真结果表明:相较于传统光源分布,联合优化方法在满足室内照明的情况下不仅减少了灯源布局的总功率,而且提高了接收面上光照度均匀度。

Aiming at problems such as communication blind spots and uneven communication quality caused by the uneven distribution of light sources in traditional indoor visible light communication(VLC)systems,a joint optimization method of position and light source parameters is proposed.Under the premise of not changing the total power of the traditional layout,this method reallocates the light-emitting diode(LED)array,searches the optimal location of each LED array by traversing,and finally optimizes the parameters of each LED array by using the improved particle swarm optimization(PSO)algorithm.Compared with the traditional light source distribution,The simulation results show that the joint optimization method not only reduces the total power of the light source layout,but also improves the illumination uniformity on the receiving surface.