Error Floor Estimation of Spatially-Coupled Irregular LDPC Code Ensembles
- Resource Type
- Conference
- Authors
- Shibata, Kengo; Lu, Shan; Yoshida, Masakazu; Narayanan, Krishna R.; Cheng, Jun
- Source
- 2018 International Symposium on Information Theory and Its Applications (ISITA) Information Theory and Its Applications (ISITA), 2018 International Symposium on. :379-383 Oct, 2018
- Subject
- Communication, Networking and Broadcast Technologies
Parity check codes
Couplings
Estimation
Decoding
Floors
Error analysis
Distribution functions
- Language
The frame error rate (FER) of spatially-coupled irregular low-density parity-check (SC-iLDPC) code ensemble in error floor region is estimated. First, the number of codewords of each weight is calculated by the permutations of all the sub-codewords at their coupling positions. Second, the FER is estimated by these numbers of the codewords of each weight. Numerical results show that the FER performances in the error floor regions of the SC-iLDPC code ensembles are superior to the conventional irregular LDPC code ensembles at almost identical belief-propagation (BP) thresholds.