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

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 individu...

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Bibliographic Details
Published inMachine Learning and Intelligent Communications pp. 35 - 43
Main Authors Zheng, Hao, Song, Zinan, Zhang, Shuyi, Chai, Shuo, Shao, Liwei
Format Book Chapter
LanguageEnglish
Published Cham Springer International Publishing
SeriesLecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
Subjects
CRC
Decoding
LDPC erasure codes
SEU
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Summary: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.
ISBN:3319527290
9783319527291
ISSN:1867-8211
1867-822X
DOI:10.1007/978-3-319-52730-7_4