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A cyclic‐shift based method for counting cycles of quasi‐cyclic LDPC codes.
- Source :
- Electronics Letters (Wiley-Blackwell); Jan2024, Vol. 60 Issue 2, p1-4, 4p
- Publication Year :
- 2024
-
Abstract
- M. Fossorier proposed how to determine the necessary and sufficient conditions for the existence of cycles in the Tanner graph of quasi‐cyclic LDPC (QC‐LDPC) codes, which has been widely investigated in the study of LDPC codes. This paper presents some new necessary and sufficient conditions for the existence of cycles with arbitrary lengths and proposes a simple and novel method for counting cycles of QC‐LDPC codes based on the improved conditions. Numerical results show that, compared with the existing methods, the presented method is effective and feasible and can enumerate cycles of QC‐LDPC codes in a cyclic‐shift way. [ABSTRACT FROM AUTHOR]
- Subjects :
- LOW density parity check codes
TANNER graphs
LINEAR codes
CHANNEL coding
Subjects
Details
- Language :
- English
- ISSN :
- 00135194
- Volume :
- 60
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Electronics Letters (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 175009090
- Full Text :
- https://doi.org/10.1049/ell2.13085