Iterative Multi-Track ITI Canceller for Nonbinary-LDPC-Coded Two-Dimensional Magnetic Recording
Summary :
An iterative inter-track interference (ITI) cancelling scheme is described for multi-track signal detection in nonbinary (NB)-LDPC-coded two-dimensional magnetic recording. The multi-track iterative ITI canceller that we propose consists of multi-track soft interference cancellers (SICs), two-dimensional partial response (TDPR) filters, noise-predictive max-log-MAP detectors, and an NB-LDPC decoder. TDPR filters using an ITI-suppressing tap-weight vector mitigate ITI in the first iteration. Multi-track SICs and TDPR filters adjusted to the residual two-dimensional ISI signals efficiently detect multi-track signals in the latter iterations. The simulation results demonstrated that our proposed iterative multi-track ITI canceller achieves frame error rates close to those obtained in a non-ITI case in media-noise-dominant environments when the both-side off-track ratio is up to 50%.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E95-C No.1 pp.163-171
- Publication Date
- 2012/01/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E95.C.163
- Type of Manuscript
- PAPER
- Category
- Storage Technology
Authors
Keyword
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Masaaki FUJII, "Iterative Multi-Track ITI Canceller for Nonbinary-LDPC-Coded Two-Dimensional Magnetic Recording" in IEICE TRANSACTIONS on Electronics,
vol. E95-C, no. 1, pp. 163-171, January 2012, doi: 10.1587/transele.E95.C.163.
Abstract: An iterative inter-track interference (ITI) cancelling scheme is described for multi-track signal detection in nonbinary (NB)-LDPC-coded two-dimensional magnetic recording. The multi-track iterative ITI canceller that we propose consists of multi-track soft interference cancellers (SICs), two-dimensional partial response (TDPR) filters, noise-predictive max-log-MAP detectors, and an NB-LDPC decoder. TDPR filters using an ITI-suppressing tap-weight vector mitigate ITI in the first iteration. Multi-track SICs and TDPR filters adjusted to the residual two-dimensional ISI signals efficiently detect multi-track signals in the latter iterations. The simulation results demonstrated that our proposed iterative multi-track ITI canceller achieves frame error rates close to those obtained in a non-ITI case in media-noise-dominant environments when the both-side off-track ratio is up to 50%.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.163/_p
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@ARTICLE{e95-c_1_163,
author={Masaaki FUJII, },
journal={IEICE TRANSACTIONS on Electronics},
title={Iterative Multi-Track ITI Canceller for Nonbinary-LDPC-Coded Two-Dimensional Magnetic Recording},
year={2012},
volume={E95-C},
number={1},
pages={163-171},
abstract={An iterative inter-track interference (ITI) cancelling scheme is described for multi-track signal detection in nonbinary (NB)-LDPC-coded two-dimensional magnetic recording. The multi-track iterative ITI canceller that we propose consists of multi-track soft interference cancellers (SICs), two-dimensional partial response (TDPR) filters, noise-predictive max-log-MAP detectors, and an NB-LDPC decoder. TDPR filters using an ITI-suppressing tap-weight vector mitigate ITI in the first iteration. Multi-track SICs and TDPR filters adjusted to the residual two-dimensional ISI signals efficiently detect multi-track signals in the latter iterations. The simulation results demonstrated that our proposed iterative multi-track ITI canceller achieves frame error rates close to those obtained in a non-ITI case in media-noise-dominant environments when the both-side off-track ratio is up to 50%.},
keywords={},
doi={10.1587/transele.E95.C.163},
ISSN={1745-1353},
month={January},}
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TY - JOUR
TI - Iterative Multi-Track ITI Canceller for Nonbinary-LDPC-Coded Two-Dimensional Magnetic Recording
T2 - IEICE TRANSACTIONS on Electronics
SP - 163
EP - 171
AU - Masaaki FUJII
PY - 2012
DO - 10.1587/transele.E95.C.163
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2012
AB - An iterative inter-track interference (ITI) cancelling scheme is described for multi-track signal detection in nonbinary (NB)-LDPC-coded two-dimensional magnetic recording. The multi-track iterative ITI canceller that we propose consists of multi-track soft interference cancellers (SICs), two-dimensional partial response (TDPR) filters, noise-predictive max-log-MAP detectors, and an NB-LDPC decoder. TDPR filters using an ITI-suppressing tap-weight vector mitigate ITI in the first iteration. Multi-track SICs and TDPR filters adjusted to the residual two-dimensional ISI signals efficiently detect multi-track signals in the latter iterations. The simulation results demonstrated that our proposed iterative multi-track ITI canceller achieves frame error rates close to those obtained in a non-ITI case in media-noise-dominant environments when the both-side off-track ratio is up to 50%.
ER -
English
