A class of irregular LDPC codes with low error floor and low encoding complexity

被引：16

作者：

He, Zhiyong ^{[1
]}

Fortier, Paul ^{[1
]}

Roy, Sebastien ^{[1
]}

机构：

[1] Univ Laval, Dept Elect & Comp Engn, Quebec City, PQ G1K 7P4, Canada

来源：

IEEE COMMUNICATIONS LETTERS | 2006年 / 10卷 / 05期

关键词：

low density parity check codes; error floor; linear encoding;

D O I：

10.1109/LCOMM.2006.05023

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, we propose a class of irregular structured low-density parity-check (LDPC) codes with low error floor and low encoding complexity by designing the parity check matrix in a triangular plus dual-diagonal form. The proposed irregular codes clearly lower the error floor and dramatically improve the performance in the waterfall region of error-rate curves. Being characterized by linear encoding complexity, the encoders of the proposed codes attain throughputs over 10 Gbit/s.

引用

页码：372 / 374

页数：3

共 9 条

[1] On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit
Chung, SY
Forney, GD
Richardson, TJ
Urbanke, R
[J]. IEEE COMMUNICATIONS LETTERS, 2001, 5 (02) : 58 - 60
[2] The extended irregular π-rotation LDPC codes
Echard, R
Chang, SC
[J]. IEEE COMMUNICATIONS LETTERS, 2003, 7 (05) : 230 - 232
[3] Irregular LDPC codes as concatenation of regular LDPC codes
Fossorier, M
Miladinovic, N
[J]. IEEE COMMUNICATIONS LETTERS, 2005, 9 (07) : 628 - 630
[4] Quasi-cyclic low-density parity-check codes from circulant permutation matrices
Fossorier, MPC
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2004, 50 (08) : 1788 - 1793
[5] A family of irregular LDPC codes with low encoding complexity
Johnson, SJ
Weller, SR
[J]. IEEE COMMUNICATIONS LETTERS, 2003, 7 (02) : 79 - 81
[6] Kang JY, 2005, IEEE COMMUN LETT, V9, P534, DOI [10.1109/LCOMM.2005.1437362, 10.1109/LCOMM.2005.06008]
[7] Simple reconfigurable Low-Density Parity-Check codes
Liva, G
Paolini, E
Chiani, M
[J]. IEEE COMMUNICATIONS LETTERS, 2005, 9 (03) : 258 - 260
[8] Design of capacity-approaching irregular low-density parity-check codes
Richardson, TJ
Shokrollahi, MA
Urbanke, RL
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2001, 47 (02) : 619 - 637
[9] LDPC block and convolutional codes based on circulant matrices
Tanner, RM
Sridhara, D
Sridharan, A
Fuja, TE
Costello, DJ
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2004, 50 (12) : 2966 - 2984

← 1 →