Performance evaluation of ITI canceller using granular medium model

Yoshihiro Okamoto; Kazumasa Ozaki; Masato Yamashita; Yasuaki Nakamura; Hisashi Osawa; Hiroaki Muraoka

doi:10.1109/TMAG.2011.2158075

Performance evaluation of ITI canceller using granular medium model

Yoshihiro Okamoto, Kazumasa Ozaki, Masato Yamashita, Yasuaki Nakamura, Hisashi Osawa, Hiroaki Muraoka

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The performance of an iterative decoding system is evaluated in shingled magnetic recording (SMR). The medium model is made by a discrete Voronoi model, and the 2-D sensitivity function of reader is used to obtain the reproducing waveform. As the sensitivity function extends to adjacent tracks, intertrack interference (ITI) deteriorates the signal detection system. In order to recover the intrinsic performance, it is required to reduce the influence of ITI to the system. Then, the ITI canceller is employed to combat ITI for the iterative decoding system, and the performance is evaluated by computer simulation. The results show that the introduction of ITI canceller improves the bit-error-rate performance in SMR system.

Original language	English
Article number	6027766
Pages (from-to)	3570-3573
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2158075
Publication status	Published - 2011 Oct

Keywords

Intertrack interference (ITI) canceller
iterative decoding
shingled magnetic recording (SMR)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Performance evaluation of ITI canceller using granular medium model",

abstract = "The performance of an iterative decoding system is evaluated in shingled magnetic recording (SMR). The medium model is made by a discrete Voronoi model, and the 2-D sensitivity function of reader is used to obtain the reproducing waveform. As the sensitivity function extends to adjacent tracks, intertrack interference (ITI) deteriorates the signal detection system. In order to recover the intrinsic performance, it is required to reduce the influence of ITI to the system. Then, the ITI canceller is employed to combat ITI for the iterative decoding system, and the performance is evaluated by computer simulation. The results show that the introduction of ITI canceller improves the bit-error-rate performance in SMR system.",

keywords = "Intertrack interference (ITI) canceller, iterative decoding, shingled magnetic recording (SMR)",

author = "Yoshihiro Okamoto and Kazumasa Ozaki and Masato Yamashita and Yasuaki Nakamura and Hisashi Osawa and Hiroaki Muraoka",

note = "Funding Information: This work was supported in part by the Japan Society for the Promotion of Science under Grants-in-Aid for Scientific Research 21360188, and by the Storage Research Consortium, Japan, under Grants-in-Aid.",

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AU - Okamoto, Yoshihiro

AU - Ozaki, Kazumasa

AU - Yamashita, Masato

AU - Nakamura, Yasuaki

AU - Osawa, Hisashi

AU - Muraoka, Hiroaki

N1 - Funding Information: This work was supported in part by the Japan Society for the Promotion of Science under Grants-in-Aid for Scientific Research 21360188, and by the Storage Research Consortium, Japan, under Grants-in-Aid.

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N2 - The performance of an iterative decoding system is evaluated in shingled magnetic recording (SMR). The medium model is made by a discrete Voronoi model, and the 2-D sensitivity function of reader is used to obtain the reproducing waveform. As the sensitivity function extends to adjacent tracks, intertrack interference (ITI) deteriorates the signal detection system. In order to recover the intrinsic performance, it is required to reduce the influence of ITI to the system. Then, the ITI canceller is employed to combat ITI for the iterative decoding system, and the performance is evaluated by computer simulation. The results show that the introduction of ITI canceller improves the bit-error-rate performance in SMR system.

AB - The performance of an iterative decoding system is evaluated in shingled magnetic recording (SMR). The medium model is made by a discrete Voronoi model, and the 2-D sensitivity function of reader is used to obtain the reproducing waveform. As the sensitivity function extends to adjacent tracks, intertrack interference (ITI) deteriorates the signal detection system. In order to recover the intrinsic performance, it is required to reduce the influence of ITI to the system. Then, the ITI canceller is employed to combat ITI for the iterative decoding system, and the performance is evaluated by computer simulation. The results show that the introduction of ITI canceller improves the bit-error-rate performance in SMR system.

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KW - iterative decoding

KW - shingled magnetic recording (SMR)

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