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학술대회 A Modified Min Sum Decoding Algorithm based on Approximation Enhancement for LDPC Codes
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저자
김남일, 이승규, 김진업
발행일
202010
출처
International Conference on Information and Communication Technology Convergence (ICTC) 2020, pp.1407-1410
DOI
https://dx.doi.org/10.1109/ICTC49870.2020.9289334
협약과제
20HH1400, 컴퓨팅이 융합된 가상화 기반 5G 이동통신 액세스 플랫폼 기술 개발, 김진업
초록
Min-sum algorithm(MSA) and its modification are used in LDPC decoder implementations because of its error performance and low computation complexity. In this paper a modified min-sum LDPC decoding algorithm through approximation enhancement using the smallest three minimum values is presented. The proposed algorithm improves error performance and reduces decoder iterations. From the simulation results for 5G NR LDPC codes, we show that the proposed algorithm can achieve about 1.6dB improvement of FER compared to the min-sum decoding algorithm and provide about 10% reduction of the average iteration numbers compare to NMSA with optimum normalization factor.
KSP 제안 키워드
Error performance, Iteration numbers, LDPC codes, LDPC decoder, LDPC decoding algorithm, Min-Sum Algorithm(MSA), Min-sum decoding, low computation complexity, simulation results