具有子块局部性的空间耦合码:联合有限长渐近设计方法
Spatially Coupled Codes with Sub-Block Locality: Joint Finite Length-Asymptotic Design Approach
摘要:
具有子块局部性的SC-LDPC码可以在比完整码块小得多的子块级别上被局部解码,从而提供对编码信息的快速访问。相同的代码也可以使用整个代码块进行全局解码,以提高数据可靠性。在本文中,我们追求这样的代码从有限长度和渐近透镜的分析和设计。这种混合方法很少应用于设计SC码,但它有利于优化代码图的局部和全局性能。我们提出的框架包括两个步骤:1)设计的本地代码的阈值和循环计数,和2)设计的耦合的本地代码的最佳循环计数的全球设计。
英文摘要:
SC-LDPC codes with sub-block locality can be decoded locally at the level of sub-blocks that are much smaller than the full code block, thus providing fast access to the coded information. The same code can also be decoded globally using the entire code block, for increased data reliability. In this paper, we pursue the analysis and design of such codes from both finite-length and asymptotic lenses. This mixed approach has rarely been applied in designing SC codes, but it is beneficial for optimizing code graphs for local and global performance simultaneously. Our proposed framework consists of two steps: 1) designing the local code for both threshold and cycle counts, and 2) designing the coupling of local codes for best cycle count in the global design.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。