论文标题
多维空间耦合的LDPC代码的非均匀窗口解码
Non-Uniform Windowed Decoding For Multi-Dimensional Spatially-Coupled LDPC Codes
论文作者
论文摘要
在本文中，我们提出了一个在二进制擦除通道上的多维的空间耦合LDPC（MD-SC-LDPC）代码的非均匀窗口解码器。 MD-SC-LDPC代码是通过将几个SC-LDPC代码连接到一个较大的代码中来构建的，该代码比各种频道模型提供了重大好处。通常，SC代码允许使用低延迟的解码。尽管可以天真地应用标准的窗口解码器，但这种方法并不能完全利用MD-SC-LDPC代码的唯一结构。在本文中，我们提出和分析了一种新型的不均匀解码器，以在延迟和可靠性之间提供更灵活的性能。我们的理论推导和经验结果表明，在设计灵活性，延迟和复杂性方面，我们的不均匀解码器在标准窗口解码器上大大改善。
In this paper, we propose a non-uniform windowed decoder for multi-dimensional spatially-coupled LDPC (MD-SC-LDPC) codes over the binary erasure channel. An MD-SC-LDPC code is constructed by connecting together several SC-LDPC codes into one larger code that provides major benefits over a variety of channel models. In general, SC codes allow for low-latency windowed decoding. While a standard windowed decoder can be naively applied, such an approach does not fully utilize the unique structure of MD-SC-LDPC codes. In this paper, we propose and analyze a novel non-uniform decoder to provide more flexibility between latency and reliability. Our theoretical derivations and empirical results show that our non-uniform decoder greatly improves upon the standard windowed decoder in terms of design flexibility, latency, and complexity.
