Research and Implementation of High-Efficiency and Low-Complexity LDPC Coding Algorithm

In this work, we proposed a high-efficiency and low-complexity encoding algorithm and its corresponding implementation structure during the design and implementation process of an LDPC encoder and decoder. This proposal was derived from extensive research on and analysis of standard encoding algorit...

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Veröffentlicht in:Electronics (Basel) Jg. 12; H. 17; S. 3696
Hauptverfasser: Liao, Xiong, Guo, Junxiong, Luo, Zhenghua, Xu, Yanghui, Chu, Yingjun
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.09.2023
Schlagworte:
Algorithms
Binary phase shift keying
Bit error rate
Block codes
Codec
Coders
Codes
Coding
Coding theory
Complexity
Decoding
Efficiency
Iterative methods
Low density parity check codes
Phase modulation
Random noise
Sparsity
China
ISSN:2079-9292, 2079-9292
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Abstract In this work, we proposed a high-efficiency and low-complexity encoding algorithm and its corresponding implementation structure during the design and implementation process of an LDPC encoder and decoder. This proposal was derived from extensive research on and analysis of standard encoding algorithms and recursive iterative encoding algorithms, specifically targeting the problem of high computational complexity in encoding algorithms. Subsequently, we combined binary phase-shift keying modulation mode and additive white Gaussian noise channel transmission with the min-sum decoding algorithm to realize the (1536, 1024) LDPC codec. This codec was uniformly quantized with a (6, 2) configuration, executed eight iterations, and achieved a 2/3 code rate in the IEEE802.16e standard. At the bit error rate (BER) of 10−5, the codec’s BER obtained by the proposed coding algorithm was about 0.25 dB lower than the recursive-iterative coding algorithm and was about 1.25 dB lower than the standard coding algorithm, which confirms the correctness, effectiveness, and feasibility of the proposed algorithm.
AbstractList In this work, we proposed a high-efficiency and low-complexity encoding algorithm and its corresponding implementation structure during the design and implementation process of an LDPC encoder and decoder. This proposal was derived from extensive research on and analysis of standard encoding algorithms and recursive iterative encoding algorithms, specifically targeting the problem of high computational complexity in encoding algorithms. Subsequently, we combined binary phase-shift keying modulation mode and additive white Gaussian noise channel transmission with the min-sum decoding algorithm to realize the (1536, 1024) LDPC codec. This codec was uniformly quantized with a (6, 2) configuration, executed eight iterations, and achieved a 2/3 code rate in the IEEE802.16e standard. At the bit error rate (BER) of 10[sup.−5] , the codec’s BER obtained by the proposed coding algorithm was about 0.25 dB lower than the recursive-iterative coding algorithm and was about 1.25 dB lower than the standard coding algorithm, which confirms the correctness, effectiveness, and feasibility of the proposed algorithm.
In this work, we proposed a high-efficiency and low-complexity encoding algorithm and its corresponding implementation structure during the design and implementation process of an LDPC encoder and decoder. This proposal was derived from extensive research on and analysis of standard encoding algorithms and recursive iterative encoding algorithms, specifically targeting the problem of high computational complexity in encoding algorithms. Subsequently, we combined binary phase-shift keying modulation mode and additive white Gaussian noise channel transmission with the min-sum decoding algorithm to realize the (1536, 1024) LDPC codec. This codec was uniformly quantized with a (6, 2) configuration, executed eight iterations, and achieved a 2/3 code rate in the IEEE802.16e standard. At the bit error rate (BER) of 10−5, the codec’s BER obtained by the proposed coding algorithm was about 0.25 dB lower than the recursive-iterative coding algorithm and was about 1.25 dB lower than the standard coding algorithm, which confirms the correctness, effectiveness, and feasibility of the proposed algorithm.
Audience Academic
Author Chu, Yingjun
Luo, Zhenghua
Liao, Xiong
Xu, Yanghui
Guo, Junxiong
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Cites_doi 10.1049/el:19961141
10.1109/TIT.1962.1057683
10.1049/iet-com.2017.0092
10.3390/s23135940
10.1109/18.910579
10.1007/s11265-018-1398-z
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SubjectTerms Algorithms
Binary phase shift keying
Bit error rate
Block codes
Codec
Coders
Codes
Coding
Coding theory
Complexity
Decoding
Efficiency
Iterative methods
Low density parity check codes
Phase modulation
Random noise
Sparsity
Title Research and Implementation of High-Efficiency and Low-Complexity LDPC Coding Algorithm
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