Turbo equalization effect for nonbinary LDPC code in BPM R/W channel

Yasuaki Nakamura, Yasuhisa Bandai, Yoshihiro Okamoto, Hisashi Osawa, Hajime Aoi, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

It is expected for the nonbinary low-density parity-check (LDPC) coding and iterative decoding system to introduce the turbo equalization in order to enhance the error correction ability in the bit-patterned medium (BPM) R/W channel. In this paper, we investigate the effect of the turbo equalization on the bit-error rate (BER) performance of nonbinary LDPC coding and iterative decoding system over Galois filed GF(2 8) in BPM R/W channel with write-error at an areal recording density of 2 Tbit/inch 2 considering the coding rate loss. The performance of turbo equalization using the nonbinary LDPC coding and iterative decoding system is evaluated by computer simulation, and it is compared to that without turbo equalization. The results show that the nonbinary LDPC and iterative decoding system with the turbo equalization has the larger write-margin compared to that without turbo equalization.

Original languageEnglish
Article number6332861
Pages (from-to)4602-4605
Number of pages4
JournalIEEE Transactions on Magnetics
Volume48
Issue number11
DOIs
Publication statusPublished - 2012

Keywords

  • Bit-patterned media (BPM)
  • Nonbinary low-density parity-check (LDPC) code
  • Turbo equalization

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Turbo equalization effect for nonbinary LDPC code in BPM R/W channel'. Together they form a unique fingerprint.

Cite this