为实现光保真技术-无线保真技术(LiFi-WiFi)混合网络的吞吐量最优化，文中将系统负载均衡问题建模为联合效用最大化问题，并使用对数效用函数实现用户的比例公平。在该方案中考虑LiFi和WiFi网络之间切换导致的信令开销，结合LiFi系统直射和反射路径以及信道噪声，分析了光同信道干扰和非同信道干扰情况下信噪比对数据速率和总吞吐量的影响。仿真结果表明，该算法的估计值满足实际的通信需求。

In the indoor wireless communication system, the light-fidelity-wireless fidelity (LiFi-WiFi) hybrid network is an emerging communication mode, which can provide users with high data rate and effectively release the spectrum space. Aiming at throughput optimization of hybrid LiFi-WiFi network, the system load balancing scheme can be formulated as a joint utility maximization problem, and a logarithmic utility function is used to achieve proportional fairness for users. In this scheme, based on the signalling overhead caused by handover between light-fidelity (LiFi) and wireless fidelity (WiFi), as well as the channel noise from the direct and reflective paths, the data rate and total throughput effected by SNR are analyzed and evaluated with co-channel interference and non-channel interference. The simulation results show that the estimation of the proposed scheme can meet the actual communication demand.