Results 111 to 120 of about 26,841 (236)

Optimized puncturing distributions for irregular non-binary LDPC codes

open access: yes, 2010
In this paper we design non-uniform bit-wise puncturing distributions for irregular non-binary LDPC (NB-LDPC) codes. The puncturing distributions are optimized by minimizing the decoding threshold of the punctured LDPC code, the threshold being computed ...
Declercq, David   +2 more
core   +1 more source

Low-Density Arrays of Circulant Matrices: Rank and Row-Redundancy Analysis, and Quasi-Cyclic LDPC Codes

open access: yes, 2012
This paper is concerned with general analysis on the rank and row-redundancy of an array of circulants whose null space defines a QC-LDPC code. Based on the Fourier transform and the properties of conjugacy classes and Hadamard products of matrices, we ...
Huang, Qin, Liu, Keke, Wang, Zulin
core  

Protograph-Based Raptor-Like LDPC Codes [PDF]

open access: green, 2014
Tsung‐Yi Chen   +3 more
openalex   +1 more source

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