Spectral Shape of Non-Binary LDPC Code Ensembles with Separated Variable Nodes

被引：0
|
作者：
Garrammone, Giuliano [1 ]
Paolini, Enrico [2 ]
Chiani, Marco [2 ]
机构：
[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Commun & Nav, Wessling, Germany
[2] Univ Bologna, CNIT, DEI, Cesena, FC, Italy
来源：
2014 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS (ISITA) | 2014年
关键词：
PARITY-CHECK CODES; WEIGHT DISTRIBUTIONS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The non-binary weight distribution and its spectral shape is developed for a partially-structured ensemble of low-density parity-check codes over finite fields. The ensemble is characterized by all degree-2 variable nodes and some of the degree-3 variable nodes being separated. It is shown that, under node separation, the typical minimum distance is strictly positive and significantly higher than the one of the corresponding unstructured ensemble.
引用
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页码：1 / 5
页数：5
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