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Reliability-Based Windowed Decoding for Spatially Coupled LDPC Codes

delete2018-07-01
delete13
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OA
AI
P
Peng Kang
Y
Yixuan Xie
L
Lei Yang *
J
Jinhong Yuan
DOI：10.1109/LCOMM.2018.2835466delete
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Abstract

Abstract

En 中文
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 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 stopping rule for each decoding window, in which only the complete variable nodes 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 algorithm.
Keywords:
Spatially-coupled (SC)
LDPC codes
reliability-based decoding
windowed decoding
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Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

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