English

New Coupled Codes Constructed by Overlapping Circular SC-LDPC Codes

Information Theory 2018-03-28 v4 math.IT

Abstract

In this paper, we propose new coupled codes constructed by overlapping circular spatially-coupled low-density parity-check (SC-LDPC) codes, which show better asymptotic and finite-length decoding performance compared to the conventional SC-LDPC codes. The performance improvement comes from the property that the proposed codes effectively split into two separated SC-LDPC codes with shorter chain length during the decoding process. We verify that the property of the proposed codes is valid in asymptotic setting via analysis tools such as the density evolution and the expected graph evolution. Experimental results show that the proposed codes also outperform the conventional SC-LDPC codes in terms of the finite-length performance under belief propagation decoding.

Keywords

Cite

@article{arxiv.1602.01577,
  title  = {New Coupled Codes Constructed by Overlapping Circular SC-LDPC Codes},
  author = {Heeyoul Kwak and Bohwan Jun and Pilwoong Yang and Jong-Seon No and Dong-Joon Shin},
  journal= {arXiv preprint arXiv:1602.01577},
  year   = {2018}
}

Comments

We want to remove the paper because it will be unpublished

R2 v1 2026-06-22T12:43:21.148Z