Construction of large girth (3,k) LDPC codes based on cuboid

被引：0

作者：

Tao Xiongfei ^{[1
]}

Liu Weizhong ^{[1
]}

Zou Xuecheng ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

2006 IEEE INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-4 | 2006年

关键词：

LDPC codes; girth; minimum distance; cuboid;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The girth and minimum distance are two important factors of LDPC codes. In this paper we construct a type of LDPC codes with girth 8 based on cuboid. The codes are regular, whose column weight is 3. The minimum distance of the code with exact cuboid structure is only 8 and the distribution of code word weight is not optimal, so we proposed a scheme to improve the codes. The simulation results comparing the bit error rate(BER) performance over AWGN channels with randomly constructed LDPC codes shows that our codes are better than the randomly constructed ones.

引用

页码：506 / 509

页数：4

共 10 条

[1] Computing the minimum distances of linear codes by the error impulse method
Berrou, C
Vaton, S
[J]. ISIT: 2002 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, PROCEEDINGS, 2002, : 5 - 5
[2] Gallager RG, 1963, LOW DENSITY PARITY C
[3] Regular low-density parity-check codes from combinatorial designs
Johnson, SJ
Weller, SR
[J]. 2001 IEEE INFORMATION THEORY WORKSHOP, PROCEEDINGS, 2001, : 90 - 92
[4] Low-density parity-check codes based on finite geometries: A rediscovery and new results
[J]. Kou, Y. (ykou@att.net), 2001, Institute of Electrical and Electronics Engineers Inc. (47)
[5] Good error-correcting codes based on very sparse matrices
MacKay, DJC
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 1999, 45 (02) : 399 - 431
[6] MACKAY DJC, SOURCE CODE APPROXIM
[7] SONG H, 2002, LOW COMPLEXITY LDPC, V2, P1294
[8] A RECURSIVE APPROACH TO LOW COMPLEXITY CODES
TANNER, RM
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 1981, 27 (05) : 533 - 547
[9] ZHANG F, 2005, HIGH GIRTH LDPC CODE, V1, P591
[10] ZHANG H, 2003, LARGE GIRTH LDPC COD, P100

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