A Method of Multi-Color Carrier Resource Allocation for Indoor VLC-WiFi Heterogeneous Network
CHEN Yong
ZHANG Weiwei
LIU Huanlin
CHEN Jinlin
Abstract：The dense deployment of visible light communication(VLC)access points(APS)indoors ex-pands the capacity of the VLC-WiFi(Wireless Fidelity)system,but it leads to increase the inter cell inter-ference(ICI).For decreasing the ICI and increasing the system throughput and mean user satisfaction,a resource allocation method of multi-color carrier allocation and power control(MCAPC)is designed to put forward in the paper.According to the VLC AP deployment location and channel characteristics,the pro-posed MCAPC method uses soft frequency multiplexing to determine the interference free main carrier and multi-color subcarriers for each VLC AP.Then,the carrier and subcarrier allocation algorithm based on matching game is designed to allocate the band resources for users in heterogeneous networks.Finally,a carrier power control algorithm based on utility value of power control for interference suppression is de-signed to further suppress the ICI.Simulation results show that the proposed method can effectively improve system throughput and increase the mean user satisfaction for the VLC-WiFi heterogeneous network.
Keywords：heterogeneous networkinter-cell interferencemulti-color carrierpower controlsystem throughput
Publication Date：2024-10-28
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：12( 48-59 )