Results 81 to 90 of about 1,026 (115)

Two Serial Multi-Layer Perceptrons for Signal Detection and Modulation Code Decoding for Bit-Patterned Media Recording

2021 IEEE 32nd Magnetic Recording Conference (TMRC), 2021
Since conventional data storage systems are faced with difficult problems such as superparamagnetic limit and thermal effect, bit-patterned media recording (BPMR) which resolves these problems receives attention as a promising next generation magnetic ...
Seongkwon Jeong, Jaejin Lee
semanticscholar   +1 more source

Track Misregistration Estimation Technique Based on Hybrid K-Means and EM Algorithm in Bit-Patterned Media Recording Systems

IEEE transactions on magnetics
Track misregistration (TMR) in ultrahigh density bit-patterned media recording (BPMR) is a significant issue, severely degrading system performance. Although TMR can be managed by a servo control loop, this article proposes a hybrid TMR mitigation method
P. Kochcha, K. Kankhunthod, C. Warisarn
semanticscholar   +1 more source

Using Long Short-Term Memory to Estimate the 2-D Interference of Bit-Patterned Media Recording Systems

IEEE transactions on magnetics
To increase the areal density (AD) of data storage systems, the bit-patterned media recording (BPMR) is considered a promising candidate for next-generation data storage systems. In BPMR, magnetic islands are used to store the user data. Therefore, these
T. Nguyen, Jaejin Lee
semanticscholar   +1 more source

Graph Neural Network (GNN) for Joint Detection–Decoder MAP–LDPC in Bit-Patterned Media Recording Systems

Electronics
With its high area density, bit-patterned media recording (BPMR) is emerging as a leading technology for next-generation storage systems. However, as area density increases, magnetic islands are positioned closer together, causing significant two ...
T. Nguyen, Jaejin Lee
semanticscholar   +1 more source

Modulation Code and Multilayer Perceptron Decoding for Bit-Patterned Media Recording

IEEE Magnetics Letters, 2020
In 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 ...
Seongkwon Jeong, Jaejin Lee
semanticscholar   +1 more source

Using Long Short-Term Memory to Estimate the Two-Dimensional Interference of Bit-Patterned Media Recording Systems

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
Recently, to increase the areal density of data storage systems, the bit-patterned media recording (BPMR) is considered the promising candidate for the next generation of stored technologies. In the BPMR, magnetic islands are used to store the user data.
T. Nguyen, Jaejin Lee
semanticscholar   +1 more source

One-Dimensional Serial Detection Using New Two-Dimensional Partial Response Target Modeling for Bit-Patterned Media Recording

IEEE Magnetics Letters, 2020
Bit-patterned media recording (BPMR) is a candidate technology that extends the density to up to 4 Tb/in2 to handle large amounts of data. However, in BPMR systems, the major challenge is two-dimensional (2-D) interference, which includes intersymbol ...
T. Nguyen, Jaejin Lee
semanticscholar   +1 more source

Information Theoretical Analysis of a New Write Channel Model for Bit-Patterned Media Recording

IEEE transactions on magnetics, 2020
This article proposes a write channel model with input-dependent noise, called multiplicative noise, for bit patterned media recording (BPMR). In general, for these types of channels and other channels with memory, the capacity is not known.
Fatemeh Ghanami, Ghosheh Abed Hodtani
semanticscholar   +1 more source

Design of an advanced soft-output Viterbi algorithm detector for bit-patterned media recording systems

IET Communications, 2020
An advanced soft-output Viterbi algorithm detector aided by extrinsic information resources is proposed for bit-patterned media recording (BPMR) systems.
C. D. Nguyen
semanticscholar   +1 more source

Multitrack Detection With Two-Dimensional Hybrid Equalizer for High-Density Bit-Patterned Media Recording

IEEE Magnetics Letters, 2020
Bit-patterned media recording (BPMR) is one of the most promising candidates to further increase recording density beyond 1 Tb/in2. For high-density BPMR systems, severe intertrack interference (ITI) and media noise caused by decreased track pitch bring ...
Yushu Xu, Yao Wang, Yuan Li, Lei Chen, Y. Wen, Ping Li   +5 more
semanticscholar   +1 more source