Details

Autor(en) / Beteiligte

• Nobuhara, Hirofumi
• Okamoto, Yoshihiro
• Nakamura, Yasuaki
• Takada, Kazuki
• Yamashita, Masato
• Osawa, Hisashi
• Muraoka, Hiroaki

Titel

Influence of Writing ITI Effects in Shingled Magnetic Recording

Ist Teil von

• IEEE transactions on magnetics, 2013-07, Vol.49 (7), p.3814-3817

Ort / Verlag

New York, NY: IEEE

Erscheinungsjahr

2013

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• In this paper, the influence of the intertrack interference (ITI) at writing in shingled magnetic recording (SMR) as well as at reading is examined using a read/write model based on recording on a medium composed of discrete Voronoi diagram by a triangular writer with trailing and one-side shields. Two kinds of ITI's at writing which affect the magnetic grains on the track currently being written and the previously recorded track are shown. One is that a part of signal on the previously recorded track remains on the current track due to lack of writing ability of writer. Another is that a part of signal is erased by the next-track writing. The effects are caused from the adjacent tracks at writing. Additionally the ITI at reading deteriorates the read-back waveform. Consequently these ITI's bring the decoding errors. The results by computer simulation using above R/W model show that the decoding errors occur in the low density parts of track which were originally considered to be hard to make errors.