Multi-Dimensional Spatially-Coupled Codes

TL;DR

This paper introduces multi-dimensional spatially-coupled codes to improve robustness against burst erasures, demonstrating that 2D-SC codes outperform 1D-SC codes and exploring designs with reduced rate loss.

Contribution

The paper proposes multi-dimensional SC codes, specifically 2D variants, to overcome limitations of traditional 1D SC codes in burst erasure scenarios.

Findings

2D-SC codes are more robust to burst erasures than 1D-SC codes

Numerical results confirm improved performance of multi-dimensional codes

Designs with smaller rate loss are considered

Abstract

Spatially-coupled (SC) codes are constructed by coupling many regular low-density parity-check codes in a chain. The decoding chain of SC codes stops when facing burst erasures. This problem can not be overcome by increasing coupling number. In this paper, we introduce multi-dimensional (MD) SC codes. Numerical results show that 2D-SC codes are more robust to the burst erasures than 1D-SC codes. Furthermore, we consider designing MD-SC codes with smaller rateloss.