A New Reliability Ratio Weighted Bit Flipping Algorithm for Decoding LDPC Codes

In this study, we propose a “New Reliability Ratio Weighted Bit Flipping” (NRRWBF) algorithm for Low-Density Parity-Check (LDPC) codes. This algorithm improves the “Reliability Ratio Weighted Bit Flipping” (RRWBF) algorithm by modifying the reliability ratio. It surpasses the RRWBF in performance, r...

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Bibliographic Details
Published in:Wireless communications and mobile computing Vol. 2021; no. 1
Main Authors: Aqil, Chakir, Akharraz, Ismail, Ahaitouf, Abdelaziz
Format: Journal Article
Language:English
Published: Oxford Hindawi 2021
John Wiley & Sons, Inc
Subjects:
Algorithms
Codes
Decoding
Error correcting codes
Error correction & detection
Low density parity check codes
Random noise
Reliability
ISSN:1530-8669, 1530-8677
Online Access:Get full text
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Summary:In this study, we propose a “New Reliability Ratio Weighted Bit Flipping” (NRRWBF) algorithm for Low-Density Parity-Check (LDPC) codes. This algorithm improves the “Reliability Ratio Weighted Bit Flipping” (RRWBF) algorithm by modifying the reliability ratio. It surpasses the RRWBF in performance, reaching a 0.6 dB coding gain at a Binary Error Rate (BER) of 10−4 over the Additive White Gaussian Noise (AWGN) channel, and presents a significant reduction in the decoding complexity. Furthermore, we improved NRRWBF using the sum of the syndromes as a criterion to avoid the infinite loop. This will enable the decoder to attain a more efficient and effective decoding performance.
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ISSN:1530-8669
1530-8677
DOI:10.1155/2021/6698602