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Computer Science > Information Theory

arXiv:1805.02902 (cs)
[Submitted on 8 May 2018 (v1), last revised 9 May 2018 (this version, v2)]

Title:Reliability-Based Windowed Decoding for Spatially-Coupled LDPC Codes

Authors:Peng Kang, Yixuan Xie, Lei Yang, Jinhong Yuan
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Abstract:In this letter, we propose a reliability-based windowed decoding scheme for spatially-coupled (SC) low-density parity-check (LDPC) codes. To mitigate the error propagation along the sliding windowed decoder of the SC LDPC codes, a partial message reservation (PMR) method is proposed where only the reliable messages generated in the previous decoding window are reserved for the next decoding window. We also propose a partial syndrome check (PSC) stopping rule for each decoding window, in which only the complete VNs are checked. Simulation results show that our proposed scheme significantly improves the error floor performance compared to the sliding windowed decoder with the conventional weighted bit-flipping (WBF) algorithm.
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1805.02902 [cs.IT]
  (or arXiv:1805.02902v2 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.1805.02902

Submission history

From: Peng Kang [view email]
[v1] Tue, 8 May 2018 08:59:35 UTC (120 KB)
[v2] Wed, 9 May 2018 00:52:51 UTC (120 KB)
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