可见光通信5G-Polar码编码CAP传输方案  

5G-Polar code coding CAP transmission scheme for visible light communication

作　　者：王昕禹 王旭东[1] 吴楠[1] WANG Xinyu;WANG Xudong;WU Nan(Information Science Technology College,Dalian Maritime University,Dalian Liaoning116026,China)

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026

出　　处：《光通信技术》2020年第12期20-24,共5页Optical Communication Technology

基　　金：国家自然科学基金(批准号:61371091)资助。

摘　　要：为提高可见光信道中短码传输的信道容量,提出一种应用于室内可见光通信(VLC)的极化编码无载波幅相(CAP)调制传输方案。该方案在可见光CAP调制基础上引入5G-Polar码编码技术,并采用分布式循环冗余校验位辅助的串行抵消列表译码算法,在构建的室内VLC传输场景中进行仿真分析。仿真结果表明:低的编码速率和调制阶数、重复模式以及较多的候选路径均可以改善系统可靠性。此外,在误块率为10-3时,相比于(2,1,7)卷积码,Polar码可获得约6.3 dB的增益。In order to improve the channel capacity of short code transmission in the visible light channel,a polarization-coded carrierless amplitude-phase(CAP)modulation transmission scheme for indoor visible light communication(VLC)is proposed.This solution introduces 5G-Polar code coding technology based on visible light CAP modulation,and uses a distributed cyclic redundancy check bit assisted serial cancellation list decoding algorithm.The simulation results show that low code rate and modulation order,repetitive patterns,and more candidate paths can improve system reliability.In addition,when the block error rate is 10-3,compared with the(2,1,7)convolutional code,the polar code can obtain a gain of about 6.3 dB.

关 键 词：极化码 可见光通信 速率匹配 串行相消 误块率 

分 类 号：TN929.1[电子电信—通信与信息系统]