• Title/Summary/Keyword: Shingled magnetic recording

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Performance Improvement Using Inter-track Interference Canceller for Shingled Magnetic Recording (인접 트랙간 간섭 제거기를 이용한 트랙을 겹쳐서 쓰는 자기기록 방식의 성능 개선)

  • Kim, Byungsun;Lee, Jaejin
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39A no.9
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    • pp.508-513
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    • 2014
  • In order to improve the storage density of magnetic recording, the shingled magnetic recording method is used. However, this method have a problem of interference between adjacent tracks. Therefore, many studies to prevent the performance degradation due to interference between the adjacent track have been conducted. In this paper, in order to solve inter-track interference, we propose a model to remove inter-track interference. In the case of overlap between tracks is 10% or more, the proposed model shows the performance improvement.

Performance Evaluation of Skewed Read-Head for Shingled Magnetic Recording (트랙을 겹쳐서 쓰는 자기기록 방식에서 리드헤드가 틀어진 경우의 성능 분석)

  • Kim, Byungsun;Lee, Jaejin
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39A no.9
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    • pp.514-518
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    • 2014
  • The shingled magnetic recording method has interference between adjacent tracks. Furthermore, when read-head reads the data along the track, the head can be skewed by some physical effects. In this paper, in order to solve this problem, we propose a two-dimensional equalizer that uses two heads. If the head is skewed, it is possible to complement the performance by positioning the two heads at the center of the current track.

Parallel Writing and Detection for Two Dimensional Magnetic Recording Channel

  • Zhang, Yong;Lee, Jaejin
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37A no.10
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    • pp.821-826
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    • 2012
  • Two-dimensional magnetic recording (TDMR) is treated as the next generation magnetic recording method, but because of its high channel bit error rate, it is difficult to use in practices. In this paper, we introduce a new writing method that can decrease the nonlinear media error effectively, and it can also achieve 10 Tb/$in^2$ of user bit density on a magnetic recording medium with 20 Teragrains/$in^2$.