室内自由小区VLC协作的用户接入和功率动态调整方法  

Cooperative VLC User Access and Dynamic Power Adjustment in Indoor Cell-free VLC Network

作　　者：刘焕淋[1] 杨帅 陈勇[2] 黄美娜 陈浩楠 陈科 袁夕淋 LIU Huanlin;YANG Shuai;CHEN Yong;HUANG Meina;CHEN Haonan;CHEN Ke;YUAN Xilin(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;School of Automation,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]重庆邮电大学自动化学院,重庆400065

出　　处：《电子与信息学报》2023年第12期4292-4300,共9页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(51977021,61275077);重庆市自然科学基金(CSTB2023NSCQ-MSX0734);重庆市研究生科研创新项目(CYS22483)。

摘　　要：针对室内自由小区VLC网络照明和吞吐量联合优化困难的问题,该文提出VLC协作用户接入和功率动态调整(VCUA-DPA)方法。在用户接入阶段,设计考虑网络的负载均衡、用户速率需求和协作小区数目限制的用户和VLC协作的用户接入算法;在功率分配阶段,设计联合优化照明均匀度和系统吞吐量的功率动态调整分配算法。仿真结果表明,所提VCUA-DPA在明显提升系统吞吐量的同时能优化室内照明均匀度。Focusing on the difficulty of jointly optimizing lighting and throughput in indoor cell-free Visible Light Communication(VLC)network,a method of VLC Cooperative User Access and Dynamic Power Adjustment(VCUA-DPA)is proposed.In the user access stage,by considering the network load balance,user rate demands and the limitation of the number of cooperative cells,a user access algorithm through user and VLC cooperating is designed in this paper.In the power allocation stage,a dynamic power adjustment algorithm is designed to optimize jointly illumination uniformity and system throughput.Simulation results show that the proposed VCUA-DPA can significantly improve the system throughput and optimize the indoor illumination uniformity.

关 键 词：室内自由小区VLC网络 用户接入 功率分配 系统吞吐量 照明均匀度 

分 类 号：TN929.11[电子电信—通信与信息系统]