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- Title
A modified extended min‐sum algorithm based on posterior probability thresholding for non‐binary low‐density parity‐check codes.
- Authors
Zhao, Yatong; Wang, Liqian; Zhu, Miao; Wang, Weiming; Tao, Kai; Shi, Yinlong; Chen, Xue
- Abstract
This letter focuses on improving the error correction performance of the extended min‐sum (EMS) decoding algorithm. Introducing factor/offset modifications in the check node update process of the EMS algorithm can improve the performance. Based on this, the authors propose a novel threshold‐based modified EMS algorithm that introduces the factor/offset in a targeted manner by setting a threshold for the posterior probability. Simulation results show that an additional performance gain of the order of 0.08 dB is obtained with the proposed method without significantly increasing the complexity of the method.
- Subjects
EXPECTATION-maximization algorithms; DECODING algorithms; TANNER graphs; LOW density parity check codes; ALGORITHMS; PROBABILITY theory
- Publication
Electronics Letters (Wiley-Blackwell), 2022, Vol 58, Issue 23, p881
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/ell2.12635