Performance Evaluation of Non-binary LDPC Coding and Iterative Decoding System for BPM R/W Channel with Write-Errors
Summary :
Bit-patterned medium (BPM) is one of the promising approaches for ultra-high density magnetic recording systems. However, BPM requires precise write synchronization, and exhibits write-errors due to insufficient write field gradient, medium switching field distribution (SFD), demagnetization field from adjacent islands, and island position variation. In this paper, an iterative decoding system using a non-binary low-density parity-check (LDPC) code is considered for a BPM R/W channel with write-errors at an areal recording density of 2Tbit/inch2 including the coding rate loss. The performance of the iterative decoding system using the non-binary LDPC code over the Galois field GF(28) is evaluated by computer simulation, and it is compared with the conventional iterative decoding system using a binary LDPC code. The results show that the non-binary LDPC system has a larger write margin than the binary LDPC system.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E96-C No.12 pp.1497-1503
- Publication Date
- 2013/12/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E96.C.1497
- Type of Manuscript
- Special Section PAPER (Special Section on Advanced Elementary Technologies for Information Storage)
- Category
Authors
Yasuaki NAKAMURA
Ehime University
Yoshihiro OKAMOTO
Ehime University
Hisashi OSAWA
Ehime University
Hajime AOI
Tohoku University
Hiroaki MURAOKA
Tohoku University
Keyword
Latest Issue
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Yasuaki NAKAMURA, Yoshihiro OKAMOTO, Hisashi OSAWA, Hajime AOI, Hiroaki MURAOKA, "Performance Evaluation of Non-binary LDPC Coding and Iterative Decoding System for BPM R/W Channel with Write-Errors" in IEICE TRANSACTIONS on Electronics,
vol. E96-C, no. 12, pp. 1497-1503, December 2013, doi: 10.1587/transele.E96.C.1497.
Abstract: Bit-patterned medium (BPM) is one of the promising approaches for ultra-high density magnetic recording systems. However, BPM requires precise write synchronization, and exhibits write-errors due to insufficient write field gradient, medium switching field distribution (SFD), demagnetization field from adjacent islands, and island position variation. In this paper, an iterative decoding system using a non-binary low-density parity-check (LDPC) code is considered for a BPM R/W channel with write-errors at an areal recording density of 2Tbit/inch2 including the coding rate loss. The performance of the iterative decoding system using the non-binary LDPC code over the Galois field GF(28) is evaluated by computer simulation, and it is compared with the conventional iterative decoding system using a binary LDPC code. The results show that the non-binary LDPC system has a larger write margin than the binary LDPC system.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.1497/_p
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@ARTICLE{e96-c_12_1497,
author={Yasuaki NAKAMURA, Yoshihiro OKAMOTO, Hisashi OSAWA, Hajime AOI, Hiroaki MURAOKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Performance Evaluation of Non-binary LDPC Coding and Iterative Decoding System for BPM R/W Channel with Write-Errors},
year={2013},
volume={E96-C},
number={12},
pages={1497-1503},
abstract={Bit-patterned medium (BPM) is one of the promising approaches for ultra-high density magnetic recording systems. However, BPM requires precise write synchronization, and exhibits write-errors due to insufficient write field gradient, medium switching field distribution (SFD), demagnetization field from adjacent islands, and island position variation. In this paper, an iterative decoding system using a non-binary low-density parity-check (LDPC) code is considered for a BPM R/W channel with write-errors at an areal recording density of 2Tbit/inch2 including the coding rate loss. The performance of the iterative decoding system using the non-binary LDPC code over the Galois field GF(28) is evaluated by computer simulation, and it is compared with the conventional iterative decoding system using a binary LDPC code. The results show that the non-binary LDPC system has a larger write margin than the binary LDPC system.},
keywords={},
doi={10.1587/transele.E96.C.1497},
ISSN={1745-1353},
month={December},}
Copy
TY - JOUR
TI - Performance Evaluation of Non-binary LDPC Coding and Iterative Decoding System for BPM R/W Channel with Write-Errors
T2 - IEICE TRANSACTIONS on Electronics
SP - 1497
EP - 1503
AU - Yasuaki NAKAMURA
AU - Yoshihiro OKAMOTO
AU - Hisashi OSAWA
AU - Hajime AOI
AU - Hiroaki MURAOKA
PY - 2013
DO - 10.1587/transele.E96.C.1497
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2013
AB - Bit-patterned medium (BPM) is one of the promising approaches for ultra-high density magnetic recording systems. However, BPM requires precise write synchronization, and exhibits write-errors due to insufficient write field gradient, medium switching field distribution (SFD), demagnetization field from adjacent islands, and island position variation. In this paper, an iterative decoding system using a non-binary low-density parity-check (LDPC) code is considered for a BPM R/W channel with write-errors at an areal recording density of 2Tbit/inch2 including the coding rate loss. The performance of the iterative decoding system using the non-binary LDPC code over the Galois field GF(28) is evaluated by computer simulation, and it is compared with the conventional iterative decoding system using a binary LDPC code. The results show that the non-binary LDPC system has a larger write margin than the binary LDPC system.
ER -
English
