[en] In this paper, we investigate the soft iterative decoding technique for ternary recoding systems with run-length-limited (RLL) constraints. We employ a simple binary-to-ternary RLL encoder following the LDPC (low density parity check) encoder. In the decoder, the iteratively passing of soft information between the LDPC decoder and a detector is used, where the detector is constructed for a combination of the RLL encoder, PLM (pulse length modulation) precoder and the partial response channel. We provide two different decoding algorithms. For one of the decoding algorithm, we are able to obtain bit-error-rate performance which is inferior to the comparable system without considering the RLL constraint for the high sign-to-noise ratio (SNR) regime and is better for the low-to-moderate SNR regime.
Disciplines :
Computer science
Author, co-author :
Shih-Kai, Lee
Hsin-Yi, Chen
Mao-Chao, Lin
Chou, Hung-Pu ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Hong-fu, Chou
External co-authors :
yes
Language :
English
Title :
On soft iterative decoding for ternary recording systems with RLL constraints
Publication date :
2010
Event name :
2010 International Symposium On Information Theory & Its Applications