Two-Round Selection-Based Bit Flipping Decoding Algorithm for LDPC Codes

This paper presents a novel iterative reliability-based bit flipping (BF) algorithm for decoding low-density parity-check codes. The new decoder is a single BF algorithm called two-round selection -based bit flipping. It introduces the idea of a two-round selection of the flipped bit, based successi...

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Veröffentlicht in:Wireless communications and mobile computing Jg. 2023; S. 1 - 11
Hauptverfasser: Addi, Soufian, Belkasmi, Mostafa, Berkani, Ahlam, Azouaoui, Ahmed
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford Hindawi 28.11.2023
John Wiley & Sons, Inc
Schlagworte:
Algorithms
Codes
Data transmission
Decision analysis
Decoders
Decoding
Error correcting codes
Low density parity check codes
Parity
Random noise
ISSN:1530-8669, 1530-8677
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Abstract This paper presents a novel iterative reliability-based bit flipping (BF) algorithm for decoding low-density parity-check codes. The new decoder is a single BF algorithm called two-round selection -based bit flipping. It introduces the idea of a two-round selection of the flipped bit, based successively on hard and soft received channel values. In the first stage, a set of unreliable bits is identified, and then a second selection is used, to pick out among them the bit to flip. In the second round of selection, the initial belief about received signals, contributes efficiently to selecting the best candidate bit. We demonstrate through simulations over the binary-input additive white Gaussian noise channel and the Rayleigh fading channel that the proposed algorithm exhibits better decoding performance when compared with some well-known soft decision BF algorithms. A complexity analysis of the proposal and a comparison to other BF decoders are also presented.
AbstractList This paper presents a novel iterative reliability-based bit flipping (BF) algorithm for decoding low-density parity-check codes. The new decoder is a single BF algorithm called two-round selection -based bit flipping. It introduces the idea of a two-round selection of the flipped bit, based successively on hard and soft received channel values. In the first stage, a set of unreliable bits is identified, and then a second selection is used, to pick out among them the bit to flip. In the second round of selection, the initial belief about received signals, contributes efficiently to selecting the best candidate bit. We demonstrate through simulations over the binary-input additive white Gaussian noise channel and the Rayleigh fading channel that the proposed algorithm exhibits better decoding performance when compared with some well-known soft decision BF algorithms. A complexity analysis of the proposal and a comparison to other BF decoders are also presented.
Author Addi, Soufian
Azouaoui, Ahmed
Berkani, Ahlam
Belkasmi, Mostafa
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  organization: Faculty of SciencesChouaib Doukkali UniversityEl JadidaMoroccoucd.ac.ma
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ContentType Journal Article
Copyright Copyright © 2023 Soufian Addi et al.
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Snippet This paper presents a novel iterative reliability-based bit flipping (BF) algorithm for decoding low-density parity-check codes. The new decoder is a single BF...
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SubjectTerms Algorithms
Codes
Data transmission
Decision analysis
Decoders
Decoding
Error correcting codes
Low density parity check codes
Parity
Random noise
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