A Resource Allocation Algorithm Combined with Optical Power Dynamic Allocation for Indoor Hybrid VLC and Wi-Fi Network

In indoor scenarios, visible light communication (VLC) access point (AP) can provide very high throughput and meet any illumination demands, while wireless fidelity (Wi-Fi) provides basic coverage in a large range. In this paper, the downlink resource allocation (RA) problem for hybrid VLC and Wi-Fi network is considered. A resource allocation algorithm combined with optical power dynamic allocation is proposed. The optimization goal is to maximize the Best Effort (BE) service users' aggregate throughput and users' proportional fairness under the premise of guaranteeing the minimum rate requirement of the Delay Constrained (DC) service users. Simulation results show that the algorithm we proposed is capable of achieving better performance in both aggregate throughput and individual fairness obviously when multi-user are extremely uneven distributed, compared with the algorithm under the condition of optical power average allocation.