Design and Analysis of Adaptive Message Coding on LDPC Decoder with Faulty Storage
Joint Authors
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-22
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
Unreliable message storage severely degrades the performance of LDPC decoders.
This paper discusses the impacts of message errors on LDPC decoders and schemes improving the robustness.
Firstly, we develop a discrete density evolution analysis for faulty LDPC decoders, which indicates that protecting the sign bits of messages is effective enough for finite-precision LDPC decoders.
Secondly, we analyze the effects of quantization precision loss for static sign bit protection and propose an embedded dynamic coding scheme by adaptively employing the least significant bits (LSBs) to protect the sign bits.
Thirdly, we give a construction of Hamming product code for the adaptive coding and present low complexity decoding algorithms.
Theoretic analysis indicates that the proposed scheme outperforms traditional triple modular redundancy (TMR) scheme in decoding both threshold and residual errors, while Monte Carlo simulations show that the performance loss is less than 0.2 dB when the storage error probability varies from 10-3 to 10-4.
American Psychological Association (APA)
Ge, Guangjun& Yin, Liuguo. 2018. Design and Analysis of Adaptive Message Coding on LDPC Decoder with Faulty Storage. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1216250
Modern Language Association (MLA)
Ge, Guangjun& Yin, Liuguo. Design and Analysis of Adaptive Message Coding on LDPC Decoder with Faulty Storage. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1216250
American Medical Association (AMA)
Ge, Guangjun& Yin, Liuguo. Design and Analysis of Adaptive Message Coding on LDPC Decoder with Faulty Storage. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1216250
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1216250