Stopping-Set Assisted Reinforced Belief Propagation for Decoding Short LDPC Codes

Asif Ali Zamzami; Kuan Chuan Chao; Shih Chun Lin

doi:10.1109/LCOMM.2021.3137222

Stopping-Set Assisted Reinforced Belief Propagation for Decoding Short LDPC Codes

Asif Ali Zamzami, Kuan Chuan Chao, Shih Chun Lin

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The low-density parity-check (LDPC) code is chosen to be a channel coding scheme for ultra-reliable and low-latency communications (URLLC) in 5G. However, short LDPC compromises the belief propagation (BP) decoder because of the stopping set (SS) in the decoding graph. We propose to perform different node operations according to the SS. A dynamic SS selection according to the received sequence is further applied. In the length 308 5G LDPC, our decoders outperform prior work, improving BP and collaborative BP at block error probability (BLER) of 3× 10-5 by around 0.176 and 0.092 dB respectively, with almost the same number of iterations.

Original language	English
Pages (from-to)	505-508
Number of pages	4
Journal	IEEE Communications Letters
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/LCOMM.2021.3137222
Publication status	Published - 1 Mar 2022
Externally published	Yes

Keywords

5G
Short LDPC codes
Stopping set

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10.1109/LCOMM.2021.3137222

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abstract = "The low-density parity-check (LDPC) code is chosen to be a channel coding scheme for ultra-reliable and low-latency communications (URLLC) in 5G. However, short LDPC compromises the belief propagation (BP) decoder because of the stopping set (SS) in the decoding graph. We propose to perform different node operations according to the SS. A dynamic SS selection according to the received sequence is further applied. In the length 308 5G LDPC, our decoders outperform prior work, improving BP and collaborative BP at block error probability (BLER) of 3× 10-5 by around 0.176 and 0.092 dB respectively, with almost the same number of iterations.",

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AU - Chao, Kuan Chuan

AU - Lin, Shih Chun

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AB - The low-density parity-check (LDPC) code is chosen to be a channel coding scheme for ultra-reliable and low-latency communications (URLLC) in 5G. However, short LDPC compromises the belief propagation (BP) decoder because of the stopping set (SS) in the decoding graph. We propose to perform different node operations according to the SS. A dynamic SS selection according to the received sequence is further applied. In the length 308 5G LDPC, our decoders outperform prior work, improving BP and collaborative BP at block error probability (BLER) of 3× 10-5 by around 0.176 and 0.092 dB respectively, with almost the same number of iterations.

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Stopping-Set Assisted Reinforced Belief Propagation for Decoding Short LDPC Codes

Abstract

Keywords

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