Performance evaluation of LDPC coding and iterative decoding system in BPM R/W channel affected by head field gradient, media SFD and demagnetization field

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

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

We evaluate the performance of the write-margin for the low-density parity-check (LDPC) coding and iterative decoding system in the bit-patterned media (BPM) R/W channel affected by the write-head field gradient, the media switching field distribution (SFD), the demagnetization field from adjacent islands and the island position deviation. It is clarified that the LDPC coding and iterative decoding system in R/W channel using BPM at 3 Tbit/inch 2 has a write-margin of about 20%.

本文言語English
ページ(範囲)88-93
ページ数6
ジャーナルPhysics Procedia
16
DOI
出版ステータスPublished - 2011
イベント9th Perpendicular Magnetic Recording Conference, PMRC 2010 - Sendai, Japan
継続期間: 2011 5 172011 5 19

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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