Results 1 to 10 of about 60 (50)

A concatenated LDPC-marker code for channels with correlated insertion and deletion errors in bit-patterned media recording system. [PDF]

open access: yesPLoS ONE, 2022
Most synchronization error correction codes deal with random independent insertion and deletion errors without correlation. In this paper, we propose a probabilistic channel model with correlated insertion and deletion (CID) errors to capture the data ...
Tianbo Xue
doaj   +2 more sources

One-Dimensional Detection Using Interference Estimation by Multilayered Two-Dimensional General Partial Response Targets for Bit-Patterned Media Recording Systems

open access: yesApplied Sciences, 2022
In bit-patterned media recording (BPMR) systems, two-dimensional (2D) interference, which includes intersymbol and intertrack interference from down- and across-track directions, respectively, increases when the distance between the islands is reduced ...
Thien An Nguyen, Jaejin Lee
doaj   +3 more sources

Parallel Detection Based on a Generalized Partial Response Target for Staggered Bit-Patterned Media Recording Systems

open access: yesIEEE Access, 2022
We consider a prospective island distribution of bit-patterned media recording (BPMR) that consists of a hexagonal array called a staggered BPMR. Although the staggered BPMR can reduce two-dimensional interference, including inter-symbol interference ...
Thien An Nguyen, Jaejin Lee
doaj   +3 more sources

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

open access: yesApplied Sciences, 2020
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.
Seongkwon Jeong, Jaejin Lee
doaj   +3 more sources

Double-layer magnetic recording with multilayer perceptron decoder for single-reader/two-track reading in BPMR systems

open access: yesAIP Advances, 2023
To expand an areal density of hard disk drives, bit-patterned magnetic recording (BPMR) using a patterned medium instead of a granular medium as employed in perpendicular magnetic recording is attracting much attention as the next-generation recording ...
N. Rueangnetr   +3 more
doaj   +1 more source

Improving Serial Detection Using MAP Algorithm for Bit-Patterned Media Recording

open access: yesApplied Sciences, 2022
Bit-patterned media recording (BPMR) is a promising technology for increasing the areal density (AD) of magnetic data storage systems. In BPMR, the non-magnetic zone is reduced to increase AD, which causes serious problems such as two-dimensional (2D ...
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Performance of staggered bit island spacing adjustment for a SRTR BPMR system

open access: yesAIP Advances, 2023
One of the key problems facing the designer of data storage devices is how to handle the exponential rise in demand for information storage. To enhance the storage capacity of bit-patterned magnetic recording (BPMR) that stores one data bit in a single ...
M. Mattayakan   +3 more
doaj   +1 more source

Modulation Decoding Based on K-Means Algorithm for Bit-Patterned Media Recording

open access: yesApplied Sciences, 2022
In bit-patterned media recording (BPMR) systems, the readback signal is affected by neighboring islands that are characterized by intersymbol interference (ISI) and intertrack interference (ITI).
Seongkwon Jeong, Jaejin Lee
doaj   +1 more source

Track Misregistration Mitigation Using CNN-Based Method on Single-Reader/Two-Track Reading BPMR Systems

open access: yesIEEE Access, 2023
One of the problems that cause a decrease in the performance of the ultra-high bit-patterned magnetic recording (BPMR) system is track misregistration (TMR).
Kittipon Kankhunthod, Chanon Warisarn
doaj   +1 more source

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