scholarly journals Stability of Iterative Decoding of Multi-Edge Type Doubly-Generalized LDPC Codes over the BEC

2011 ◽  
Author(s):  
E. Paolini ◽  
M. F. Flanagan ◽  
M. Chiani ◽  
M. P. C. Fossorier
Keyword(s):  
Iterative Decoding ◽  
Ldpc Codes ◽  
Edge Type

scholarly journals Weight Distributions of Multi-Edge Type LDPC Codes

2010 ◽  
Vol E93-A (11) ◽  
pp. 1942-1948 ◽  
Author(s):  
Kenta KASAI ◽  
Tomoharu AWANO ◽  
David DECLERCQ ◽  
Charly POULLIAT ◽  
Kohichi SAKANIWA
Keyword(s):  
Ldpc Codes ◽  
Edge Type ◽  
Weight Distributions

scholarly journals A Deterministic Construction for Jointly Designed Quasicyclic LDPC Coded-Relay Cooperation

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Muhammad Asif ◽  
Wuyang Zhou ◽  
Qingping Yu ◽  
Xingwang Li ◽  
Nauman Ali Khan
Keyword(s):  
Fading Channels ◽  
Iterative Decoding ◽  
Rayleigh Fading ◽  
Additive White Gaussian Noise ◽  
Ldpc Codes ◽  
Destination Node ◽  
Relay Nodes ◽  
Binary Matrix ◽  
Relay Cooperation ◽  
Joint Iterative Decoding

This correspondence presents a jointly designed quasicyclic (QC) low-density parity-check (LDPC) coded-relay cooperation with joint-iterative decoding in the destination node. Firstly, a design-theoretic construction of QC-LDPC codes based on a combinatoric design approach known as optical orthogonal codes (OOC) is presented. Proposed OOC-based construction gives three classes of binary QC-LDPC codes with no length-4 cycles by utilizing some known ingredients including binary matrix dispersion of elements of finite field, incidence matrices, and circulant decomposition. Secondly, the proposed OOC-based construction gives an effective method to jointly design length-4 cycles free QC-LDPC codes for coded-relay cooperation, where sum-product algorithm- (SPA-) based joint-iterative decoding is used to decode the corrupted sequences coming from the source or relay nodes in different time frames over constituent Rayleigh fading channels. Based on the theoretical analysis and simulation results, proposed QC-LDPC coded-relay cooperations outperform their competitors under same conditions over the Rayleigh fading channel with additive white Gaussian noise.

scholarly journals Bounded angle iterative decoding of LDPC codes

2008 ◽  
Author(s):  
Sam Dolinar ◽  
Kenneth Andrews ◽  
Fabrizio Pollara ◽  
Dariush Divsalar
Keyword(s):  
Iterative Decoding ◽  
Ldpc Codes

Iterative Decoding Algorithm for NB LDPC Codes

2016 ◽  
pp. 228-236
Author(s):  
Juane Li ◽  
Shu Lin ◽  
Khaled Abdel-Ghaffar ◽  
William E. Ryan ◽  
Daniel J. Jr Costello
Keyword(s):  
Iterative Decoding ◽  
Ldpc Codes ◽  
Decoding Algorithm
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