Bit-patterned media with written-in errors: Modeling, detection, and theoretical limits

Jun Hu, Tolga M. Duman, Erozan M. Kurtas, M. Fatih Erden

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

We report a study of bit-patterned media recording channels containing written-in errors. From a signal processing point of view, we consider an abstract model for the overall recording channel, incorporating errors caused by timing and write ability. Based on the resulting channel model, we develop various trellis structures, and propose several detection algorithms that can be used to recover the recorded data. Furthermore, we investigate achievable information rates for patterned media recording systems with different levels of written-in error probability, providing an information theoretical performance assessment for such systems.

Original languageEnglish (US)
Pages (from-to)3517-3524
Number of pages8
JournalIEEE Transactions on Magnetics
Volume43
Issue number8
DOIs
StatePublished - Aug 1 2007

Keywords

  • Achievable information rates
  • Bit-patterned media
  • Intersymbol interference (ISI)
  • Maximum a posteriori (MAP) detection
  • Written-in errors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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