A CRC-Aided LDPC Erasure Decoding Algorithm for SEUs Correcting in Small Satellites

Hao Zheng; Zinan Song; Shuyi Zhang; Shuo Chai; Liwei Shao

Machine Learning and Intelligent Communications. First International Conference, MLICOM 2016, Shanghai, China, August 27-28, 2016, Revised Selected Papers

Research Article

A CRC-Aided LDPC Erasure Decoding Algorithm for SEUs Correcting in Small Satellites

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@INPROCEEDINGS{10.1007/978-3-319-52730-7_4,
    author={Hao Zheng and Zinan Song and Shuyi Zhang and Shuo Chai and Liwei Shao},
    title={A CRC-Aided LDPC Erasure Decoding Algorithm for SEUs Correcting in Small Satellites},
    proceedings={Machine Learning and Intelligent Communications. First International Conference, MLICOM 2016, Shanghai, China, August 27-28, 2016, Revised Selected Papers},
    proceedings_a={MLICOM},
    year={2017},
    month={2},
    keywords={LDPC erasure codes Decoding CRC SEU},
    doi={10.1007/978-3-319-52730-7_4}
}

Hao Zheng
Zinan Song
Shuyi Zhang
Shuo Chai
Liwei Shao
Year: 2017
A CRC-Aided LDPC Erasure Decoding Algorithm for SEUs Correcting in Small Satellites
MLICOM
Springer
DOI: 10.1007/978-3-319-52730-7_4

Hao Zheng¹^,*, Zinan Song¹, Shuyi Zhang¹, Shuo Chai¹, Liwei Shao²

1: Beijing Institute of Technology
2: Research Institute of BIT in Zhongshan

*Contact email: 3120130330@bit.edu.cn

Abstract

Bit-flip caused by SEUs is one of the main reasons resulting in small satellites malfunction. This paper proposes a LDPC erasure decoding method aided by CRC to detect and correct errors in stored data. The key idea is that the encoded message is divided into multiple fragments protected by individual CRC so that fragments with error could be detected and corrected. Moreover, CRC is also used as an early stop criterion of decoding. Simulation and implementation results show that the proposed method has better performance compared with MS decoding both in error correcting and hardware requirements.

Keywords: LDPC erasure codes Decoding CRC SEU

Published: 2017-02-24
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-319-52730-7_4