Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

doi:10.1016/S1005-8885(11)60252-5

中国邮电高校学报(英文) ›› 2012, Vol. 19 ›› Issue (2): 96-99.doi: 10.1016/S1005-8885(11)60252-5

Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

刘原华¹,张美玲¹,范九伦²

1. 西安邮电学院
2.

收稿日期:2011-07-14 修回日期:2011-09-29 出版日期:2012-04-30 发布日期:2012-04-17
通讯作者: 刘原华 E-mail:yuanhliu@163.com
基金资助:
This work was supported by the Scientific Research Program Funded by Shaanxi Provincial Education Department (11JK1007), the Program for Young Teachers in Xi’an University of Posts and Telecommunications (0001286), and the National Basic Research Program of China (2012CB328300).

Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

School of Communication and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China

Received:2011-07-14 Revised:2011-09-29 Online:2012-04-30 Published:2012-04-17
Contact: Yuan-Hua LIU E-mail:yuanhliu@163.com
Supported by:
This work was supported by the Scientific Research Program Funded by Shaanxi Provincial Education Department (11JK1007), the Program for Young Teachers in Xi’an University of Posts and Telecommunications (0001286), and the National Basic Research Program of China (2012CB328300).

摘要/Abstract

摘要：

An improved Euclidean geometry approach to design quasi-cyclic (QC) Low-density parity-check (LDPC) codes with high-rate and low error floor is presented. The constructed QC-LDPC codes with high-rate have lower error floor than the original codes. The distribution of the minimum weight codeword is analyzed, and a sufficient existence condition of the minimum weight codeword is found. Simulations show that a lot of QC-LDPC codes with lower error floor can be designed by reducing the number of the minimum weight codewords satisfying this sufficient condition.

关键词:

low-density parity-check codes, quasi-cyclic, Euclidean geometry

Abstract:

Key words:

low-density parity-check codes, quasi-cyclic, Euclidean geometry

Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

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