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A Modified Extended Min-Sum Algorithm based on Posterior Probability Thresholding for Non-binary LDPC Codes
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  • Yatong Zhao,
  • Liqian Wang,
  • Miao Zhu,
  • Weiming Wang,
  • Kai Tao,
  • Yinlong Shi,
  • Xue Chen
Yatong Zhao
Beijing University of Posts and Telecommunications Institute of Information Photonics and Optical Communications

Corresponding Author:15251859105@163.com

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Liqian Wang
Beijing University of Posts and Telecommunications Institute of Information Photonics and Optical Communications
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Miao Zhu
Beijing University of Posts and Telecommunications Institute of Information Photonics and Optical Communications
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Weiming Wang
ZTE Corp
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Kai Tao
ZTE Corp
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Yinlong Shi
ZTE Corp
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Xue Chen
Beijing University of Posts and Telecommunications Institute of Information Photonics and Optical Communications
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Abstract

This letter focuses on the improvement in 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, we 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 method’s complexity.
06 May 2022Submitted to Electronics Letters
07 May 2022Submission Checks Completed
07 May 2022Assigned to Editor
06 Jul 2022Reviewer(s) Assigned
31 Jul 2022Review(s) Completed, Editorial Evaluation Pending
14 Aug 2022Editorial Decision: Revise Minor
12 Sep 20221st Revision Received
13 Sep 2022Submission Checks Completed
13 Sep 2022Assigned to Editor
13 Sep 2022Review(s) Completed, Editorial Evaluation Pending
14 Sep 2022Editorial Decision: Accept