面向6G的极化编码链路自适应技术  

Polar Coded Link Adaption for 6G Wireless Systems

作　　者：牛凯[1] NIU Kai(The Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts and Telecommunications(BUPT),Beijing 100876,China)

机构地区：[1]北京邮电大学“泛网无线通信”教育部重点实验室,北京100876

出　　处：《移动通信》2020年第6期48-56,共9页Mobile Communications

基　　金：国家重点研发计划基金资助项目(2018YFE 0205501);国家自然科学基金资助项目(61671080)。

摘　　要：作为第一种达到信道容量的高性能编码,极化码(Polar Code)是未来6G数据传输的重要候选方案,由此提出了面向6G的极化编码链路自适应传输框架。在此框架下,高性能的级联极化编码方案,逼近有限码长信道容量极限;通用的极化编码速率适配,支持高效HARQ机制;灵活的极化编码调制,显著提升链路频谱效率。极化编码链路自适应方案能够显著提升无线传输性能,满足超高可靠低时延与高频谱效率传输要求,在未来6G数据传输中有广泛的应用前景。As the fi rst high-performance channel code achieving the channel capacity,polar codes are the important candidate for the 6G data transmission.In this paper,we propose the link adaption transmission framework based on the polar codes for the 6G wireless system.This framework includes a high-performance coding scheme of concatenated polar codes which can approach the channel capacity with fi nite-length.It also provides the universal rate matching methods to support high-efficiency HARQ mechanism.Furthermore,flexible polar coded modulation can dramatically improve the link spectrum effi ciency.In a word,the polar coded link adaption can dramatically boost the performance of wireless transmission and satisfy the requirements of ultra-reliability,low-latency and high spectrum effi ciency,and thus has a broad application prospect in the future 6G data transmission.

关 键 词：极化码 信道极化 极化编码调制 极化编码链路自适应 极化编码HARQ 

分 类 号：TN911.22[电子电信—通信与信息系统]