Average coset weight distribution of multi-edge type LDPC code ensembles

被引：5
|
作者：
Kasai, Kenta [1 ]
Shimoyama, Yuji
Shibuya, Tomoharu
Sakaniwa, Kohichi
机构：
[1] Tokyo Inst Technol, Dept Commun & Integrated Syst, Tokyo 1528552, Japan
[2] NEC Corp Ltd, Mobile Radio Access Network Div, Tokyo 1088001, Japan
[3] NIME, R&D Dept, Chiba 2610014, Japan
来源：
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2006年 / E89A卷 / 10期
关键词：
average coset weight distribution; low-density parity-check codes; multi-edge type low-density parity-check codes; symmetry; weight distribution;
D O I：
10.1093/ietfec/e89-a.10.2519
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Multi-Edge type Low-Density Parity-Check codes (MET-LDPC codes) introduced by Richardson and Urbanke are generalized LDPC codes which can be seen as LDPC codes obtained by concatenating several standard (ir)regular LDPC codes. We prove in this paper that MET-LDPC code ensembles possess a certain symmetry with respect to their Average Coset Weight Distributions (ACWD). Using this symmetry, we drive ACWD of MET-LDPC code ensembles from ACWD of their constituent ensembles.
引用
收藏
页码：2519 / 2525
页数：7
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