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Iterative Multihead Multitrack Detection Scheme for Bit-Patterned Media Recording
IEEE Magnetics Letters, 2022An iterative multihead multitrack detection scheme for bit-patterned media recording is described in this letter. The scheme employs two iterative strategies with multihead, multitrack detection where three tracks are simultaneously processed to ...
Gyuyeol Kong +2 more
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Modulation Code and Multilayer Perceptron Decoding for Bit-Patterned Media Recording
IEEE Magnetics Letters, 2020In a bit-patterned media recording (BPMR) system, reducing the spacing between adjacent bit islands in the down- and cross-track directions increases areal density; however, two-dimensional (2-D) interference comprising intersymbol and intertrack interferences degrades the system performance.
Seongkwon Jeong, Jaejin Lee
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An Intertrack Interference (ITI) Subtraction Scheme for Bit-Patterned Media Recording
2021 18th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2021Currently, hard disk drive has been struggled to overcome the super-paramagnetic limit that restricts the density increment. Bit-patterned magnetic recording (BPMR) is a candidate that can increase an areal density (AD) up to 4 Tb/in2. However, inter-track interference (ITI) arising from a narrow track width at high AD severely degrades the system ...
Chaiwat Buajong +3 more
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2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers), 2023
In the bit-patterned media recording (BPMR), to increase the areal density, the magnetic islands are adjusted closer together. This makes the bit-error rate performance of BPMR become worse by inter-symbol interference (ISI) and inter-track interference (
T. Nguyen, Jaejin Lee
semanticscholar +2 more sources
In the bit-patterned media recording (BPMR), to increase the areal density, the magnetic islands are adjusted closer together. This makes the bit-error rate performance of BPMR become worse by inter-symbol interference (ISI) and inter-track interference (
T. Nguyen, Jaejin Lee
semanticscholar +2 more sources
A simple recorded-bit patterning scheme for bit-patterned media recording
2013 10th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2013In bit-patterned magnetic recording (BPMR), intersymbol interference (ISI) and inter-track interference (ITI) become a major impairment due to small bit and track pitches. One way to alleviate ISI and ITI is to encode the data sequence before recording.
Autthasith Arrayangkool +3 more
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Bit-Flipping Scheme Using K-Means Algorithm for Bit-Patterned Media Recording
IEEE transactions on magnetics, 2022As the need for storing significant amounts of data has increased, an increased areal density (AD) of hard disk drives is required. Bit-patterned media recording (BPMR) with the ability to increase AD is regarded as one of the future magnetic storage ...
Seongkwon Jeong, Jaejin Lee
semanticscholar +1 more source
Track Mis-Registration Estimator Based on K-Means Algorithm for Bit-Patterned Media Recording
IEEE transactions on magnetics, 2022Bit-patterned media recording (BPMR) has been considered among the key technologies to extend recording densities to 1 Tb/in2 and beyond. However, the BPMR system encounters the challenges of two-dimensional intersymbol interference and track mis ...
Seongkwon Jeong, Jaejin Lee
semanticscholar +1 more source
2022 IEEE 33rd Magnetic Recording Conference (TMRC), 2022
In bit patterned media recording (BPMR) technology, data are stored on the magnetic islands. Thus, for increasing the areal density (AD), we have to reduce the distance between magnetic islands.
T. Nguyen, Jaejin Lee
semanticscholar +1 more source
In bit patterned media recording (BPMR) technology, data are stored on the magnetic islands. Thus, for increasing the areal density (AD), we have to reduce the distance between magnetic islands.
T. Nguyen, Jaejin Lee
semanticscholar +1 more source
Recording potential of bit-patterned media
Applied Physics Letters, 2006A comprehensive analysis of the areal density potential of bit-patterned media recording shows that the recording performance is dominated by written-in errors. The statistical fluctuations of the magnetic properties and the locations of the individual bits lead to error probabilities so that some dots are either not recorded at all or cannot be ...
H. J. Richter +10 more
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3/5 Decoder and LLR Estimator-based Multilayer Perceptron for SRTR Bit-Patterned Media Recording
International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2022To increase the data storage capacity of the hard disk drives for storing huge digital information that grows rapidly, one of the alternative technologies, bit-patterned media recording (BPMR), can support an areal density (AD) of up to 4 Terabits per ...
N. Rueangnetr +3 more
semanticscholar +1 more source