Recent advances in holographic data storage

H Ruan - Frontiers of Optoelectronics, 2014 - Springer
Nowadays, big-data centers still rely on hard drives. However, there is strong evidence that
these surface-storage technologies are approaching fundamental limits that may be difficult …

Two-dimensional soft output viterbi algorithm with a variable reliability factor for holographic data storage

K Koo, SY Kim, JJ Jeong, SW Kim - Japanese Journal of Applied …, 2013 - iopscience.iop.org
In a practical holographic data storage system, the reconstruction process for a data page
should account for the processing time as well as the bit error rate (BER) performance. To …

Data page reconstruction method based on two-dimensional soft output Viterbi algorithm with self reference for holographic data storage

K Koo, SY Kim, JJ Jeong, SW Kim - Optical Review, 2014 - Springer
This study introduces a two-dimensional (2D) partial response maximum likelihood (PRML)
method to reconstruct a degraded data page having 2D inter-symbol interference for …

Enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding for four-level holographic data storage systems

G Kong, S Choi - Japanese journal of applied physics, 2017 - iopscience.iop.org
Abstract An enhanced 2/3 four-ary modulation code using soft-decision Viterbi decoding is
proposed for four-level holographic data storage systems. While the previous four-ary …

4‐ary 14/16 modulation code for reducing two‐dimensional inter‐symbol interference

J Kim, S Jeong, J Lee - IET Communications, 2020 - Wiley Online Library
Holographic data storage (HDS) can access data in a short amount of time and can also
quickly transmit data because HDS records and reads data in units of pages. Thus HDS is …

An ant colony optimization aided two-dimensional soft output viterbi algorithm detection scheme for holographic data storage systems

G Kong, S Choi - Japanese journal of applied physics, 2019 - iopscience.iop.org
In this paper, we propose an ant colony optimization (ACO) aided two-dimensional (2D) soft
output Viterbi algorithm (SOVA) detection scheme for holographic data storage systems. The …

A two-dimensional partial response maximum likelihood detection scheme for misalignment compensation in holographic data storage systems

G Kong, S Choi - Japanese journal of applied physics, 2017 - iopscience.iop.org
Abstract A two-dimensional (2D) partial response maximum likelihood (PRML) detection
scheme for misalignment compensation for holographic data storage systems is proposed …

Equalization scheme with misalignment estimation based on multi-layer perceptrons for holographic data storage systems

S Han, G Kong, S Choi - Japanese journal of applied physics, 2019 - iopscience.iop.org
In this paper, we proposed a new equalization scheme based on multi-layer perceptrons
(MLPs) to mitigate two-dimensional (2D) inter symbol interference due to the nonlinear …