Multi-dimensional spatially-coupled codes

Multi-dimensional spatially-coupled codes
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DOI：
10.1109/isit.2013.6620666
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发表时间：
2013-02
期刊：
2013 IEEE International Symposium on Information Theory
影响因子：
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通讯作者：
R. Ohashi;K. Kasai;K. Takeuchi
R. Ohashi;K. Kasai;K. Takeuchi
中科院分区：
其他
文献类型：
--
作者：
R. Ohashi;K. Kasai;K. Takeuchi

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空间耦合（SC）码是通过在链中耦合许多常规低密度奇偶校验码而构造的。 SC 码的解码链在遇到突发擦除时会中止。这个问题不能通过增加链长度来解决。在本文中，我们引入多维（MD）SC 代码来规避它。数值结果表明，二维 SC 码比一维 SC 码更能抵抗突发擦除。此外，我们考虑设计具有更小的速率损失的多维SC码。
Spatially-coupled (SC) codes are constructed by coupling many regular low-density parity-check codes in a chain. The decoding chain of SC codes aborts when facing burst erasures. This problem cannot be overcome by increasing the chain length. In this paper, we introduce multi-dimensional (MD) SC codes to circumvent it. Numerical results show that two-dimensional SC codes are more robust against the burst erasures than one-dimensional SC codes. Furthermore, we consider designing multidimensional SC codes with smaller rateloss.