QoE-Driven Optimized Load Balancing Design for Hybrid LiFi and WiFi Networks
QoE-Driven Optimized Load Balancing Design for Hybrid LiFi and WiFi Networks
复制标题
适用于混合 LiFi 和 WiFi 网络的 QoE 驱动优化负载平衡设计
DOI:
10.1109/lcomm.2018.2869388
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发表时间:
2018-09
期刊:
影响因子:
--
通讯作者:
张琳
中科院分区:
文献类型:
--
作者:
Weibin Ma;张琳
The hybrid light fidelity (LiFi) and wireless fidelity (WiFi) networks are regarded as a promising solution for future indoor wireless communication. In this letter, we investigate the traffic load balancing (LB) issue for this hybrid networks. In our design, considering that user terminals (UTs) may have different data rate demands, we utilize the complementary advantages of the wide bandwidth of the LiFi network and the wide coverage area of the WiFi network to serve the UTs. With considerations of the access point heterogeneity and UTs’ quality of experience (QoE) demands for data rate, we then formulate the LB issue as a mixed-integer non-linear programming problem with the aim of maximizing the system throughput under proportional fairness constraints, and propose a distributed optimal algorithm and a simplified suboptimal sequential algorithm to solve it. Simulation results demonstrate that using the presented QoE-driving LB scheme, more UTs are served with higher QoE while maintaining high system throughput and proportional fairness.
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