块衰落信道的准循环ldpc码设计

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI:10.1109/CISS.2010.5464729

Yueqian Li, M. Salehi

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引用次数: 30

摘要

研究了非遍历块衰落信道中的准循环低密度奇偶校验码(QC-LDPC)。提出了一种设计QC-LDPC规范的构造方法。经过精心设计，本文提出的QC-LDPC码与[1]中使用迭代信念传播(BP)解码引入的随机根-LDPC码具有相同的性能。此外，所提出的QCLDPC码的结构使得一种高效的编码方法成为可能。

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Quasi-cyclic ldpc code design for block-fading channels

We investigate quasi-cyclic low-density parity-check (QC-LDPC) codes for nonergodic block-fading channels. A construction method for designing QC-LDPC codes is presented. With careful design, the proposed QC-LDPC codes exhibit the same good performance as their corresponding random root- LDPC codes introduced in [1] using iterative belief-propagation (BP) decoding. Moreover, the structure of the proposed QCLDPC codes makes an efficient encoding method possible.

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2010 44th Annual Conference on Information Sciences and Systems (CISS)

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