Results 1 to 10 of about 1,026 (115)

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

PLoS 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 ...
Xue T.
europepmc   +3 more sources

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

Applied 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   +2 more sources

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

Applied 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   +2 more sources

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

IEEE 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   +2 more sources

Estimating Interference with a Two-Dimensional Viterbi Algorithm for Bit-Patterned Media Recording

Applied Sciences, 2022
Bit-patterned media recording (BPMR) is proposed as a candidate for future magnetic data storage to overcome superparamagnetism. The distance between magnetic islands in BPMR must be reduced to increase the areal density (AD).
Thien An Nguyen, Jaejin Lee
doaj   +2 more sources

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

Applied 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   +2 more sources

Soft-Output Detector Using Multi-Layer Perceptron for Bit-Patterned Media Recording

Applied Sciences, 2022
As conventional data storage systems are faced with critical problems such as the superparamagnetic limit, bit-patterned media recording (BPMR) has received significant attention as a promising next-generation magnetic data storage system.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

A Novel Structure and Detection for Double-Layer Bit-Patterned Media Recording

IEEE Access
With the rapid growth of data volumes, the demand for high-capacity storage systems continues to rise. To address this challenge, double-layer bit-patterned media recording (DLBPMR), a combination of double-layer magnetic recording (DLMR) and bit ...
Thien An Nguyen, Oh-Soon Shin, Jaejin Lee   +2 more
doaj   +2 more sources

Iterative Signal Detection Scheme Using Multilayer Perceptron for a Bit-Patterned Media Recording System

Applied Sciences, 2020
Because of the physical and engineering problems of conventional magnetic data storage systems, bit-patterned media recording (BPMR) is expected to be a promising technology for extending the storage density to beyond 1 Tb /in2.
Seongkwon Jeong, Jaejin Lee
doaj   +2 more sources

Recording media configurations for double-layered bit-patterned magnetic recording

AIP Advances
The current magnetic recording technology is approaching its recording density limit. Recently, concepts focused on vertically stacking multiple recording media have gained momentum, driven by the potential to significantly expand recording density.
Chaiwat Buajong, Chanon Warisarn
doaj   +2 more sources