scholarly journals Error floor approximation for LDPC codes in the AWGN channel

2011 ◽  
Author(s):  
Brian K. Butler ◽  
Paul H. Siegel
Keyword(s):  
Ldpc Codes ◽  
Error Floor ◽  
Awgn Channel

scholarly journals Error Floor Approximation for LDPC Codes in the AWGN Channel

2014 ◽  
Vol 60 (12) ◽  
pp. 7416-7441 ◽  
Author(s):  
Brian K. Butler ◽  
Paul H. Siegel
Keyword(s):  
Ldpc Codes ◽  
Error Floor ◽  
Awgn Channel

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

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Chakir Aqil ◽  
Ismail Akharraz ◽  
Abdelaziz Ahaitouf
Keyword(s):  
Gaussian Noise ◽  
Additive White Gaussian Noise ◽  
Ldpc Codes ◽  
Low Density ◽  
Parity Check ◽  
Coding Gain ◽  
Decoding Complexity ◽  
Low Density Parity Check ◽  
Awgn Channel ◽  
Infinite Loop

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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