Joint Source and Channel Coding Using Double Polar Codes

被引：17

作者：

Dong, Yanfei ^{[1
]}

Niu, Kai ^{[1
]}

Dai, Jincheng ^{[1
]}

Wang, Sen ^{[1
]}

Yuan, Yifei ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100876, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2021年 / 25卷 / 09期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Decoding; Polar codes; Systematics; Iterative decoding; Channel coding; Source coding; Simulation; Joint source and channel coding; double polar codes; turbo-like belief propagation decoder; POLARIZATION; DESIGN;

D O I：

10.1109/LCOMM.2021.3088941

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, a double polar code (D-Polar) for joint source and channel coding (JSCC) is proposed, in which the source compress is implemented by a polar code, the channel error correction is performed by a systematic polar code. Furthermore, a turbo-like belief propagation (TL-BP) decoder consisted of a channel BP decoder and a source BP decoder is proposed for joint source and channel decoding in the receiver. In this TL-BP decoder, the soft information is exchanged between the channel BP decoder and the source BP decoder so as to improve the efficiency of channel decoding in utilizing the source information residual in the compressed bits. Simulation results show that the performance of the proposed D-Polar JSCC scheme with TL-BP decoder is significantly improved compared with the existing source-channel joint polarization scheme.

引用

页码：2810 / 2814

页数：5

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