Constructions of QC LDPC codes based on integer sequences

2014 ◽  
Vol 57 (6) ◽  
pp. 1-14 ◽  
Author(s):  
LiJun Zhang ◽  
Bing Li ◽  
LeeLung Cheng
Keyword(s):  
Ldpc Codes ◽  
Integer Sequences

scholarly journals Performance Analysis for Cooperative Communication System with QC-LDPC Codes Constructed with Integer Sequences

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Yan Zhang ◽  
Feng-fan Yang ◽  
Weijun Song
Keyword(s):  
Cooperative Communication ◽  
Ldpc Codes ◽  
Ldpc Code ◽  
Parity Check ◽  
Integer Sequences ◽  
Excellent Performance ◽  
Array Codes ◽  
Integer Sequence ◽  
Overall Performance ◽  
Better Than

This paper presents four different integer sequences to construct quasi-cyclic low-density parity-check (QC-LDPC) codes with mathematical theory. The paper introduces the procedure of the coding principle and coding. Four different integer sequences constructing QC-LDPC code are compared with LDPC codes by using PEG algorithm, array codes, and the Mackey codes, respectively. Then, the integer sequence QC-LDPC codes are used in coded cooperative communication. Simulation results show that the integer sequence constructed QC-LDPC codes are effective, and overall performance is better than that of other types of LDPC codes in the coded cooperative communication. The performance of Dayan integer sequence constructed QC-LDPC is the most excellent performance.

Construction of LDPC Codes Based on Circulant Permutation Matrices

2011 ◽  
Vol 30 (10) ◽  
pp. 2384-2387 ◽  
Author(s):  
Hua Qiao ◽  
Wu Guan ◽  
Ming-ke Dong ◽  
Hai-ge Xiang
Keyword(s):  
Ldpc Codes ◽  
Permutation Matrices
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