Quasi-Cyclic LDPC Codes with Large Girth and Few Short Cycles

DOI

10.2991/icmse-18.2018.127How to use a DOI?

Keywords

Low-density parity-check codes; quasi-cyclic; cycles; girth

Abstract

In this paper, we present an improved method for obtaining quasi-cyclic low-density parity-check (QC-LDPC) codes of larger length by combining some component QC-LDPC codes of smaller length. Large girth can be obtained by carefully designing one large girth component code of smaller length. The other component codes are properly designed to obtain a lot of QC-LDPC codes with much few short cycles. Simulations show that compared with CRT based QC-LDPC codes and PEG based QC-LDPC codes, the proposed QC-LDPC codes have much less short cycles and better performance.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - YuanHua Liu
PY  - 2018/05
DA  - 2018/05
TI  - Quasi-Cyclic LDPC Codes with Large Girth and Few Short Cycles
BT  - Proceedings of the 2018 8th International Conference on Manufacturing Science and Engineering (ICMSE 2018)
PB  - Atlantis Press
SP  - 689
EP  - 692
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-18.2018.127
DO  - 10.2991/icmse-18.2018.127
ID  - Liu2018/05
ER  -