Joint Source-Channel Coding for 6G Communications  

作　　者：Yanfei Dong Jincheng Dai Kai Niu Sen Wang Yifei Yuan 

机构地区：[1]The Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]China Mobile Research Institute,Beijing 100876,China

出　　处：《China Communications》2022年第3期101-115,共15页中国通信（英文版）

基　　金：supported by National Natural Science Foundation of China(No.92067202,No.62001049,&No.62071058);Beijing Natural Science Foundation under Grant 4222012;Beijing University of Posts and Telecommunications-China Mobile Research Institute Joint Innovation Center。

摘　　要：In order to provide ultra low-latency and high energy-efficient communication for intelligences,the sixth generation(6G)wireless communication networks need to break out of the dilemma of the depleting gain of the separated optimization paradigm.In this context,this paper provides a comprehensive tutorial that overview how joint source-channel coding(JSCC)can be employed for improving overall system performance.For the purpose,we first introduce the communication requirements and performance metrics for 6G.Then,we provide an overview of the source-channel separation theorem and why it may not hold in practical applications.In addition,we focus on two new JSCC schemes called the double low-density parity-check(LDPC)codes and the double polar codes,respectively,giving their detailed coding and decoding processes and corresponding performance simulations.In a nutshell,this paper constitutes a tutorial on the JSCC scheme tailored to the needs of future 6G communications.

关 键 词：6G joint source and channel coding doubel LDPC codes doubel polar codes 

分 类 号：TN929.5[电子电信—通信与信息系统] TN911.22[电子电信—信息与通信工程]