Design and Implementation of LDPC Encoder / Decoder in the Atmospheric Laser Communication

The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, λ-min algorithm and A - min algorithm, decoder is designed adopti...

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Veröffentlicht in:Applied Mechanics and Materials Jg. 672-674; H. Renewable Energy and Power Technology II; S. 883 - 887
Hauptverfasser: Chang, Li Min, Dong, Qing Wei, Zhan, Ye
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Zurich Trans Tech Publications Ltd 01.10.2014
Schlagworte:
Algorithms
Circuit design
Coders
Decoders
Encoders
Encoding
Error correcting codes
Propagation
AR4JA Protograph
LDPC
Encoding
Decoding
Laser Communication
ISBN:9783038352860, 3038352861
ISSN:1660-9336, 1662-7482, 1662-7482
Online-Zugang:Volltext
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Abstract The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, λ-min algorithm and A - min algorithm, decoder is designed adopting the complexity and performance eclectic mixed decoding algorithm. Meanwhile, it is verified by the simulation. The result shows that coding gain can be up to about 6 to 8 db, if it meets the requirements of 10-5 bit error rate.
AbstractList The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, λ-min algorithm and A - min algorithm, decoder is designed adopting the complexity and performance eclectic mixed decoding algorithm. Meanwhile, it is verified by the simulation. The result shows that coding gain can be up to about 6 to 8 db, if it meets the requirements of 10 -5 bit error rate.
The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, λ-min algorithm and A - min algorithm, decoder is designed adopting the complexity and performance eclectic mixed decoding algorithm. Meanwhile, it is verified by the simulation. The result shows that coding gain can be up to about 6 to 8 db, if it meets the requirements of 10-5 bit error rate.
The paper briefly introduces the structure principle and excellent characteristics of protograph LDPC codes and designs the serial encoding circuit based on FPGA. On the basis of the further study of Belief Propagation (BP) algorithm, lambda -min algorithm and A - min algorithm, decoder is designed adopting the complexity and performance eclectic mixed decoding algorithm. Meanwhile, it is verified by the simulation. The result shows that coding gain can be up to about 6 to 8 db, if it meets the requirements of 10-5 bit error rate.
Author Zhan, Ye
Dong, Qing Wei
Chang, Li Min
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  fullname: Dong, Qing Wei
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  organization: Aviation University of Air Force : Department of Control Engineering
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  organization: Aviation University of Air Force : Department of Control Engineering
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Cites_doi 10.1109/milcom.2003.1290095
10.7551/mitpress/4347.001.0001
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Issue Renewable Energy and Power Technology II
Keywords AR4JA Protograph
LDPC
Encoding
Decoding
Laser Communication
Language English
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Notes Selected, peer reviewed papers from the 2014 2nd International Conference on Renewable Energy and Environmental Technology (REET 2014), August 19-20, 2014, Dalian, China
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SubjectTerms Algorithms
Circuit design
Coders
Decoders
Encoders
Encoding
Error correcting codes
Propagation
Title Design and Implementation of LDPC Encoder / Decoder in the Atmospheric Laser Communication
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