상세정보
학술지
Multi-round Belief Propagation Decoding with Impulsive Perturbation for Short LDPC Codes
- 발행일
- 202009
- 출처
- IEEE Wireless Communications Letters, v.9 no.9, pp.1491-1494
- ISSN
- 2162-2337
- 출판사
- IEEE
- 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.
- KSP 제안 키워드
- Belief propagation decoding, Existing schemes, Generalized framework, LDPC codes, Low Density Parity Check(LDPC), Parallel implementation, Parity check codes, Perturbation scheme, Selection criterion, Short codes, Short cycles