论文标题
耦合内存和块长度对空间耦合串行串联代码的影响
The Effect of Coupling Memory and Block Length on Spatially Coupled Serially Concatenated Codes
论文作者
论文摘要
空间耦合的串行串联代码（SC-SCC）是一类空间耦合的类似涡轮状的代码，它们具有接近容量的性能和低误差地面。在本文中，我们研究了耦合内存，块长度，解码窗口大小以及迭代次数对SC-SCC的性能，复杂性和延迟的影响。提出了几个设计权衡，以查看这些参数之间的关系。此外，我们的分析在不同情况下为SC-SCC提供了设计指南，以使代码设计独立于块长度。结果，可以灵活地交换块长度和耦合内存，而不会改变延迟和复杂性。此外，我们观察到，对于固定的延迟和复杂性，SC-SCC的性能得到了提高的性能。
Spatially coupled serially concatenated codes (SC-SCCs) are a class of spatially coupled turbo-like codes, which have a close-to-capacity performance and low error floor. In this paper we investigate the impact of coupling memory, block length, decoding window size, and number of iterations on the performance, complexity, and latency of SC-SCCs. Several design tradeoffs are presented to see the relation between these parameters in a wide range. Also, our analysis provides design guidelines for SC-SCCs in different scenarios to make the code design independent of block length. As a result, block length and coupling memory can be exchanged flexibly without changing the latency and complexity. Also, we observe that the performance of SC-SCCs is improved with respect to the uncoupled ensembles for a fixed latency and complexity.
