A study of interactive processing between PRML detection and erasure error correction in perpendicular recording

Yasuaki Nakamura, Yoshihiro Okamoto, Hisashi Osawa, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, the interactive processing between a partial-response maximum-likelihood (PRML) channel and a decoder for the Reed-Solomon (RS) code is studied in perpendicular magnetic recording channel. Whereas in conventional systems a run-length-limited (RLL) encoder/decoder is insides the RS encoder/decoder, in this paper, we permute their positions so that the PRML channel and RS decoder can interact. Accordingly, the RS decoder can acquire reliability information from a PRML channel without interruption by the RLL decoder. It is demonstrated by computer simulation that the proposed system provides an SNR improvement of 0.8-1.1 dB compared with a conventional system at a linear density normalized by user bit interval, K, of 1.5.

Original languageEnglish
Pages (from-to)3105-3107
Number of pages3
JournalIEEE Transactions on Magnetics
Volume40
Issue number4 II
DOIs
Publication statusPublished - 2004 Jul 1

Keywords

  • Error correction code (ECC)
  • Partial-response maximum-likelihood (PRML) channel
  • Perpendicular magnetic recording
  • Reed-solomon (RS) code

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'A study of interactive processing between PRML detection and erasure error correction in perpendicular recording'. Together they form a unique fingerprint.

  • Cite this