Modulation Code for Reducing Intertrack Interference on Staggered Bit-Patterned Media Recording

A bit-patterned media recording (BPMR) system is a type of ultrahigh-capacity magnetic storage system that can extend to an areal density of 1 terabit per square inch or higher. However, because the space between islands in the down- and cross-track directions is reduced to extend the areal density,...

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Bibliographic Details
Published in:Applied sciences 2020-08, Vol.10 (15), p.5295
Main Authors: Jeong, Seongkwon, Lee, Jaejin
Format: Article
Language:English
Subjects:
Algorithms
bit-patterned media recording
Codes
intertrack interference
Islands
modulation code
Noise
Recording
Sensors
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Summary:A bit-patterned media recording (BPMR) system is a type of ultrahigh-capacity magnetic storage system that can extend to an areal density of 1 terabit per square inch or higher. However, because the space between islands in the down- and cross-track directions is reduced to extend the areal density, the effect of two-dimensional interference is increased. However, using a staggered array, which is one of the possible island distributions for BPMR, helps to decrease intertrack interference. A 7/10 modulation code for a staggered BPMR is proposed to avoid the effect of two-dimensional interference and provide distance among nonidentical codewords for improving the correcting capability.
ISSN:2076-3417
2076-3417
DOI:10.3390/app10155295