Modulation codes using mixed integer programming approach for multi-level holographic data storage

Author

Kim, Jinyoung ; Lee, Jaejin ; Park, Teahyung

Author_Institution

Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea

fYear

2012

fDate

1-3 Aug. 2012

Firstpage

306

Lastpage

308

Abstract

We propose modulation codes of 2/3 code rates for multi-level holographic data storage using mixed integer programming approach. In this paper, the signal intensities that are passed through the 4-level holographic channel are assumed as a four Gaussian mixture. Codeword selection problem with minimal symbol value difference between neighboring cells and near uniform symbol occurrence is formulated as a linear mixed integer programming problem and solved using IBM ILOG CPLEX ver.12.2.

Keywords

codes; holographic storage; integer programming; optical modulation; 2/3 code rates; 4-level holographic channel; Gaussian mixture; IBM ILOG CPLEX ver.12.2; cells; codeword selection problem; linear mixed integer programming; minimal symbol value difference; modulation codes; multilevel holographic data storage; near uniform symbol occurrence; signal intensities; Adaptive optics; Data storage systems; Holography; Interference; Linear programming; Memory; Modulation; Interpage interference; Mixed integer programming; Modulation codes; Multi-level holographic; Two-dimensional intersymbol interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Electronics (ICCE), 2012 Fourth International Conference on

Conference_Location

Hue

Print_ISBN

978-1-4673-2492-2

Type

conf

DOI

10.1109/CCE.2012.6315917

Filename

6315917