Performance evaluation of TDMR R/W channel with head skew by LDPC coding and iterative decoding system

R. Suzutou, Y. Nakamura, H. Osawa, Y. Okamoto, Y. Kanai, Hiroaki Muraoka

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

2-D magnetic recording (TDMR) exploits 2-D signal processing using the waveforms reproduced by array head from the intended and adjacent tracks to mitigate the effects of intertrack interference. However, an array head has the issue on the degradation of bit error rate (BER) performance due to head skew. In this paper, we evaluate the BER performance of TDMR R/W channel with head skew under a specification of 4 Tbit/in 2 employing low-density parity check coding and iterative decoding system using a 2-D finite-impulse response filter by computer simulation. The results show that our system can achieve the reliable BER performances by appropriately setting the reader scanning positions at the head skew angle between 0° and 3°.

Original languageEnglish
Article number7123641
JournalIEEE Transactions on Magnetics
Volume51
Issue number11
DOIs
Publication statusPublished - 2015 Nov 1

Keywords

  • 2-D magnetic recording (TDMR)
  • array head
  • head skew
  • shingled magnetic recording (SMR)

ASJC Scopus subject areas

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

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