Bite error rate performance of iterative decoding in a perpendicular magnetic recording channel

Y. Okamoto, T. Kanaoka, H. Osawa, H. Saito, H. Muraoka, Y. Nakamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The BER performance of iterative decoding systems and PRML systems in a perpendicular magnetic recording channel is experimentally investigated. A performance evaluation system consisting of a spinstand, a recording waveform generator, a digital storage oscilloscope and a personal computer was used. PR1ML, PR2ML, EPR3ML, E 2PR3ML and ME 2PR4ML systems are discussed as a PRML channel. The 8/9 and 16/17 iterative-decoding systems consists of the encoder, with RSC encoder serially concatenated with precoded PR channels and the iterative decoder with APP modules using Max-log-MAP algorithm. The results show that EPR3ML and E 2PR3ML provide good BER performance in a perpendicular magnetic recording channel and that the iterative decoding system is also an efficient way to improve the BER performance in the channel.

Original languageEnglish
Pages (from-to)689-694
Number of pages6
JournalIEEE Transactions on Magnetics
Volume37
Issue number2 I
DOIs
Publication statusPublished - 2001 Mar 1

Keywords

  • Iterative decoding
  • PR channel
  • PRML system
  • Perpendicular magnetic recording
  • Serial concatenation

ASJC Scopus subject areas

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

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    Okamoto, Y., Kanaoka, T., Osawa, H., Saito, H., Muraoka, H., & Nakamura, Y. (2001). Bite error rate performance of iterative decoding in a perpendicular magnetic recording channel. IEEE Transactions on Magnetics, 37(2 I), 689-694. https://doi.org/10.1109/20.917602