From Product Codes to Structured Generalized LDPC Codes

被引：0
|
作者：
Lentmaier, Michael [1 ]
Liva, Gianluigi [2 ]
Paolini, Enrico [3 ]
Fettweis, Gerhard [1 ]
机构：
[1] Dresden Univ Technol TU Dresden, Vodafone Chair Mobile Commun Syst, D-01062 Dresden, Germany
[2] DLR, Inst Commun & Navigat, D-82234 Oberpfaffenhofen,, Germany
[3] Univ Bologna, WiLab, DEIS, I-47023 Bologna, Italy
来源：
2010 5TH INTERNATIONAL ICST CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA (CHINACOM) | 2010年
关键词：
Iterative decoding; product codes; turbo codes; low-density parity-check codes; BLOCK;
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：
Product codes, due to their relativley large minimum distance, are often seen as a natural solution for applications requiring low error floors. In this paper, we show by means of an ensemble weight enumerator analysis that the minimum distance multiplicities of product codes are much higher than those obtainable by other generalized LDPC (GLDPC) constructions employing the same component codes. We then propose a simple construction of quasi-cyclic GLDPC codes which leads to significantly lower error floors while leaving the decoder architecture of product codes almost untouched.
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页数：8
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