Joint Source and Channel Coding Using Double Polar Codes

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 consis...

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Vydáno v:IEEE communications letters Ročník 25; číslo 9; s. 2810 - 2814
Hlavní autoři: Dong, Yanfei, Niu, Kai, Dai, Jincheng, Wang, Sen, Yuan, Yifei
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.09.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Channel coding
Coding
Decoding
double polar codes
Error correction
Iterative decoding
Joint source and channel coding
Polar codes
Simulation
Source coding
Systematics
turbo-like belief propagation decoder
ISSN:1089-7798, 1558-2558
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Shrnutí: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.
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content type line 14
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2021.3088941