Kubilay Atasu, Thomas Mittelholzer
ICML 2019
The performance of low-density parity-check (LDPC) codes serially concatenated with generalized partial response channels is investigated. Various soft-input/soft-output detection schemes suitable for use in iterative detection/decoding systems are described. A low-complexity near-optimal detection algorithm that incorporates soft-input reliability information and generates soft-output reliability information is presented. A reduced-complexity algorithm for decoding LDPC codes is described. Simulation results on the performance of high-rate LDPC codes on generalized PR channels at various recording densities are presented. These results indicate that a judicious selection of the inner detector target polynomial and the choice of a good LDPC code are important in optimizing the performance of the overall recording system. Furthermore, the results also show that iterative detection/decoding schemes using LDPC codes can outperform hard-decision decoding of Reed-Solomon codes by over 2 dB at a sector error rate of 10-3.
Kubilay Atasu, Thomas Mittelholzer
ICML 2019
Thomas Mittelholzer, Milos Stanisavljevic, et al.
ISCAS 2021
Nikolaos Papandreou, Angeliki Pantazi, et al.
ICECS 2010
S. Ölçer, Evangelos Eleftheriou, et al.
IEEE Transactions on Magnetics