On the combinatorial substructures of LDPC codes causing error floors in the AWGN channel

2012 ◽  
Author(s):  
Hosung Park ◽  
Jong-Seon No ◽  
Beomkyu Shin ◽  
Habong Chung
Keyword(s):  
Ldpc Codes ◽  
Awgn Channel ◽  
Error Floors

Multi-Stage Decoding Scheme with Post-Processing for LDPC Codes to Lower the Error Floors

2011 ◽  
Vol E94-B (8) ◽  
pp. 2375-2377 ◽  
Author(s):  
Beomkyu SHIN ◽  
Hosung PARK ◽  
Jong-Seon NO ◽  
Habong CHUNG
Keyword(s):  
Ldpc Codes ◽  
Post Processing ◽  
Multi Stage ◽  
Error Floors

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.

Analysis of error floors of LDPC codes under LP decoding over the BSC

2009 ◽  
Author(s):  
Shashi Kiran Chilappagari ◽  
Bane Vasic ◽  
Mikhail Stepanov ◽  
Michael Chertkov
Keyword(s):  
Ldpc Codes ◽  
Error Floors ◽  
Analysis Of Error

Variable-Weight Block Dual-Diagonal Structure for Low-Rate QC LDPC Codes With Low Error Floors

2020 ◽  
Vol 68 (3) ◽  
pp. 1344-1357
Author(s):  
Hosung Park ◽  
Hee-Youl Kwak ◽  
Seokbeom Hong ◽  
Jong-Seon No ◽  
Dong-Joon Shin
Keyword(s):  
Ldpc Codes ◽  
Variable Weight ◽  
Error Floors ◽  
Low Rate

Lowering Error Floors of Irregular LDPC Codes by Combining Construction and Decoding

2012 ◽  
Vol E95-B (1) ◽  
pp. 271-274 ◽  
Author(s):  
Xiaopeng JIAO ◽  
Jianjun MU ◽  
Fan FANG ◽  
Rong SUN
Keyword(s):  
Ldpc Codes ◽  
Irregular Ldpc Codes ◽  
Error Floors

scholarly journals Quasi-cyclic generalized ldpc codes with low error floors

2008 ◽  
Vol 56 (1) ◽  
pp. 49-57 ◽  
Author(s):  
G. Liva ◽  
W.E. Ryan ◽  
M. Chiani
Keyword(s):  
Ldpc Codes ◽  
Error Floors
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