Paper Info
Title
Nonbinary hybrid LDPC codes
Abstract
In this paper, a new class oflow-density parity-check (LDPC) codes, named hybrid LDPC codes, is introduced. Hybrid LDPC codes are characterized by an irregular connectivity profile and heterogeneous orders of the symbols in the codeword. It is shown in particular that the class of hybrid LDPC codes can be asymptotically characterized and optimized using density evolution (DE) framework, and a technique to maximize the minimum distance of the code is presented. Numerical assessment of hybrid LDPC code performances is provided, by comparing them to protograph-based and multiedge-type (MET) LDPC codes. Hybrid LDPC codes are shown to allow to achieve an interesting tradeoff between good error-floor performance and good waterfall region with nonbinary coding techniques.
Year
DOI
Venue
2010
10.1109/TIT.2010.2059910
IEEE Transactions on Information Theory
Keywords
Field
DocType
iteration method,iterative methods,error correction code,group codes,ldpc code,codeword,channel coding,vectors,low density parity check,redundancy,numerical analysis,decoding
Forward error correction,Discrete mathematics,Combinatorics,Concatenated error correction code,Group code,Low-density parity-check code,Computer science,Block code,Turbo code,Serial concatenated convolutional codes,Linear code
Journal
Volume
Issue
ISSN
56
10
0018-9448
Citations 
PageRank 
References 
13
0.70
28
Authors
2
Name
Order
Citations
PageRank
Lucile Sassatelli19112.87
David Declercq215810.14