An improved Round-Robin(IRR)algorithm is proposed by combining Round-Robin(RR)and Proportional Fairness(PF).The algorithm weights the user request rate and delay as the user pri-ority,and makes priority compensation for users with larger delay.The simulation results show that the IRR algorithm has good performance by improving the fairness of the VLC/WiFi heterogeneous network,with the fairness index above 0.98 and average delay between 0.005-0.01 ms.
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