Iterative decoding algorithm using attenuated information in PMR with bit-patterned medium

Y. Nakamura, M. Nishimura, Y. Okamoto, H. Osawa, H. Aoi, H. Muraoka, Y. Nakamura

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In this paper, a low-density parity check (LDPC) coding and iterative decoding system is studied in perpendicular magnetic recording (PMR) with a bit-patterned medium. We propose the efficient iterative decoding algorithm attenuating reliability information, and evaluate the sector error rate (SER) performance of the LDPC coding and iterative decoding system by R/W computer simulations. It is clarified that the proposed systems provide better SER performances than that of the conventional system at an areal density of 1 Tbit/in2 and can also prevent the error floor which appears in the performance of conventional system.

Original languageEnglish
Pages (from-to)3132-3135
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number22
DOIs
Publication statusPublished - 2008 Nov

Keywords

  • Bit-patterned medium
  • Error floor
  • Iterative decoding
  • LDPC code

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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