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학술지 Multi-round Belief Propagation Decoding with Impulsive Perturbation for Short LDPC Codes
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저자
이현재, 길용성, 장민, 김상효, 박옥선, 박기윤
발행일
202009
출처
IEEE Wireless Communications Letters, v.9 no.9, pp.1491-1494
ISSN
2162-2337
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LWC.2020.2994770
협약과제
20HH2900, 셀룰러 기반 산업 자동화 시스템 구축을 위한 5G 성능 한계 극복 저지연, 고신뢰, 초연결 통합 핵심기술 개발, 신재승
초록
The belief propagation (BP) decoding of short low-density parity check codes suffers from short cycles and trapping sets. A number of perturbation schemes have been proposed to overcome the limitation. This letter presents a generalized framework for multi-round BP decoding with input perturbation and proposes an improved perturbation scheme. In particular, the impulsive perturbation which is applied to only a few symbols is proposed, along with a new space selection criterion. The proposed scheme performs better than existing schemes for short codes at lower complexity and supports a parallel implementation.
키워드
belief propagation decoding, Low-density parity check codes, perturbation-based decoding, ultra-reliable and low latency communication
KSP 제안 키워드
Belief propagation decoding, Existing schemes, Generalized framework, LDPC codes, Low Density Parity Check(LDPC), Low latency, Parallel implementation, Parity check codes, Perturbation scheme, Selection criterion, Short codes