Design of Non Binary Quasi-Cyclic LDPC Codes Based on RA Encoding

被引：2
|
作者：
Yu, Qingping [1 ]
Shi, Zhiping [1 ]
Yan, Bing [1 ]
Zhang, Zhongpei [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Commun, Chengdu 610054, Peoples R China
来源：
2009 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLUMES I & II: COMMUNICATIONS, NETWORKS AND SIGNAL PROCESSING, VOL I/ELECTRONIC DEVICES, CIRUITS AND SYSTEMS, VOL II | 2009年
关键词：
D O I：
10.1109/ICCCAS.2009.5250564
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A method to construct non binary QC-LDPC codes is proposed based on RA encoding with reducing encoding complexity. It is just to compute parity check symbols according to check equations or parity check matrix, and it's not necessary to apply a generator matrix to the encoder, which greatly reduced encoding complexity. Also, the quasi-cyclic structure of parity check matrix makes it possible to realize parallel decoding with very low complexity. Simulation results show that this class QC-LDPC codes without small loop outperforms random LDPC codes both in complexity and performance with middle length and it is very suitable for implementation.
引用
收藏
页码：112 / 115
页数：4
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