For indoor visible light communication in the MIMO system

users can not enjoy fair communication service issues.In this paper

we propose a method to find the optimal value of the gain of the optical receiver concentrator to solve this problem.It can be used to optimize the multi user power distribution problems.We use an improved niche genetic algorithm establishment and node mode related to the corresponding received optical power to find a set of optimal condenser gain value in the visible light communication system.The simulation results show that the improved niche genetic algorithm performs can find a set of optimum condenser efficiently

and improve the service quality of indoor visible light communication system.