室内可见光通信ACO-OFDM系统信道编码性能分析  

Analysis of channel coding performance of ACO-OFDM system for indoor visible light communication

作　　者：陈鹏远 李明洋 冯满 王裕如[1,2] 李萍 CHEN Pengyuan;LI Mingyang;FENG Man;WANG Yuru;LI Ping(School of Information Science and Engineering,Dalian Polytechnic University,Dalian Liaoning 116034,China;Institute of Photonics,Dalian Polytechnic University,Dalian Liaoning 116034,China)

机构地区：[1]大连工业大学信息科学与工程学院,辽宁大连116034 [2]大连工业大学光子学研究所,辽宁大连116034

出　　处：《光通信技术》2022年第3期71-75,共5页Optical Communication Technology

摘　　要：为降低传输信道中障碍物反射对可见光通信产生的干扰和多径效应,首先,搭建了非对称限幅光正交频分复用(ACO-OFDM)仿真模型和信道模型,仿真验证了采用基于正交幅度调制(16QAM)的ACO-OFDM调制在直射链路和反射链路中均有更好的抗噪性能。然后,将级联BCH和卷积码的编码方式加入ACO-OFDM。仿真结果表明:采用级联BCH码和卷积码的ACO-OFDM系统具有更高的抗噪性能以及更好的抗干扰性能,改善了可见光通信性能。In order to reduce the interference and multipath effect of obstacle reflection on visible light communication in the transmission channel.Firstly,asymmetrically clipped optical orthogonal frequency division multiplexing(ACO-OFDM)simulation model and channel model are built in this paper.the simulation results show that the ACO-OFDM modulation based on quadrature amplitude modulation(16QAM)has better anti-noise performance in both direct link and reflection link.the coding method of concatenated BCH and convolutional code is added to ACO-OFDM.The simulation results show that the ACO-OFDM system using cascade BCH and convolutional code has higher anti-noise performance and better anti-jamming performance,and improves the performance of visible light communication.

关 键 词：非对称限幅光正交频分复用 信道编码 级联BCH和卷积码 

分 类 号：TN914[电子电信—通信与信息系统]