针对可见光通信系统存在的光照度和接收平面功率分配不均匀的问题，提出了基于多种群遗传算法的光源布局模型。以 15个 LED灯为例，构造和接收功率方差有关的适应度函数，采用多个种群协同进化的方式，对 LED灯的位置坐标信息进行寻优。经 Matlab R2016a仿真结果表明，优化后的功率分布直观上更均匀，功率方差达到 1.5744 dBm，照度范围为 889 lx ~1009 lx，照度均匀度亦达到 91.73%，均优于传统遗传算法优化的布局和多种群遗传算法优化的矩形布局，从而为系统优化 LED灯布局使得用户获得更好的通信体验提供了一种借鉴方案。

To solve the unevenness of distributions of optical illuminance and power in visible light communication system, a light source layout based on multi-population genetic algorithm is proposed. Taking 15 LED lamps as an example, the position coordinates were optimized under the fitness function related to variance of received power through the co-evolution of multi-populations. The simulation results on Matlab R2016a showed that, after being op-timized, the distribution of power was evener intuitively, the variance of power reached 1.5744 dBm, the illuminance fell in a range between 889 lx and 1009 lx and the uniformity ratio of illuminance was 91.73%, all of which were better than those of the layout optimized by traditional genetic algorithm and the rectangular layout optimized by mul-ti-population genetic algorithm. This experiment provides a feasible solution for optimizing the visible light commu-nication system so that users can have a more comfortable communication trip in this system.