多输入多输出可见光通信系统中预编码技术的研究进展  

Research progress on precoding technology in MIMO-VLC system

作　　者：陈超 邵宇丰[1] 王安蓉[1] 胡文光 柳海楠 李文臣 杨林婕 张颜鹭 岳京歌 靳清清 CHEN Chao;SHAO Yufeng;WANG Anrong;HU Wenguang;LIU Hainan;LI Wenchen;YANG Linjie;ZHANG Yanlu;YUE Jingge;JIN Qingqing(College of Electronics and Information Technology,Chongqing Three Gorges University,Chongqing 404100,China)

机构地区：[1]重庆三峡学院电子与信息工程学院,重庆404100

出　　处：《激光杂志》2024年第6期21-27,共7页Laser Journal

基　　金：国家自然科学基金资助项目(No.61107064);重庆市教委科学技术研究计划重大资助项目(No.KJZD-M201901201);重庆市教委科技攻关项目青年资助项目(No.KJQN201801227);重庆市教委科学技术研究计划资助项目(No.KJ1401005);重庆市高校创新团队建设计划资助项目(No.KJTD201320);重庆市基础研究与前沿探索资助项目(No.cstc2018jcyjAX0038,No.cstc2016jcyjA0246);重庆市三峡库区地质环境监测与灾害预警重点实验室开放基金重大资助项目(No.ZD2020A0104);重庆三峡学院优秀成果转化资助项目(No.18CGZH03);重庆三峡学院研究生创新资助项目(No.YJSKY22014)。

摘　　要：近年来,可见光通信(VLC)技术得到飞速发展,该技术兼具室内低功耗照明和宽带信号高速接入的双重功能,因此在室内大数据通信领域具有较高的应用价值。多输入多输出(MIMO)作为一种在VLC系统中能实现信道容量倍增的技术正日益引起业界关注,但多信道具有强相关性容易导致用户间信息串扰,而在发射机中应用若干预编码技术可在一定程度上避免用户间信息干扰,且可以较低成本实现系统收发质量的提升。文章综述了MIMO-VLC系统中预编码技术的应用背景和基本原理,总结了典型线性及非线性预编码技术的研究进展,讨论并分析了该类技术的应用优势、发展趋势和面临的挑战。Recently,visible light communication(VLC)technology has developed rapidly.This technology has the dual functions of low-power indoor lighting and high-speed broadband signal access,so it has high application value in the field of indoor big data communication.Multiple-input multiple-output(MIMO),as a technology that can achieve channel capacity multiplication in VLC systems,is increasingly attracting the attention of the industry.However,the strong correlation of multi-channels can easily lead to information crosstalk between users.The application of interference coding technology in transmitters can avoid information interference between users to a certain extent,and can improve the quality of system transmission and reception at a lower cost.This paper reviews the application background and basic principles of precoding technology in MIMO-VLC systems,summarizes the research progress of typical linear and nonlinear precoding technologies,and discusses and analyzes the application advantages,development trends and challenges of such technologies.

关 键 词：可见光通信系统 预编码 线性 非线性 人工智能 

分 类 号：TN929[电子电信—通信与信息系统]