NDLI: Elimination of two-dimensional intersymbol interference through the use of a 9/12 two-dimensional modulation code

Content Provider	IET Digital Library
Author	Nguyen, Chi Dinh Lee, Jaejin
Abstract	This study presents a 9/12 two-dimensional (2D) modulation code as a way to overcome 2D intersymbol interference (ISI) in high-density storage systems. The next generation of data-storage systems is being continually developed to satisfy a massive demand for reliable storage regarding enormous amounts of data. Holographic data storage, bit-patterned media recording (BPMR), and 2D magnetic recording are promising candidates for the attainment of area-density increases that are beyond the capacities of conventional storage systems. One of the main challenges for these systems is a 2D ISI problem consisting of 1D ISI from neighbour bits and intertrack interference from adjacent tracks. The proposed modulation code maps every 9 bit sequence of user data into a 2D output array of a 3-by-4 size so that the fatal 2D ISI patterns are avoided in every output array. For the assessment of the quality of the proposed modulation code, a simulation model is carried out in a BPMR system. The results show that the proposed modulation code offers a gain of ∼2 dB over that of a system without encoding. In particular, a gain of ∼1 dB is obtained over that of a 6/8 modulation code regarding the same code rate.
Starting Page	1730
Ending Page	1735
Page Count	6
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 14, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0200
Journal	IET Communications
Publisher Date	2016-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	1D ISI 2D Intersymbol Interference Elimination 2D ISI Problem 2D Magnetic Recording 2D Modulation Code Adjacent Tracks Area-density Bit-patterned Media Recording BPMR System Electromagnetic Compatibility High-density Storage System Holographic Data Storage Interference Interference Suppression Intersymbol Interference Intertrack Interference Magnetic Recording Modulation And Coding Method Modulation Coding Next Generation Data-storage System Quality Assessment Storage Application Storage on Moving Magnetic Media Two-dimensional Intersymbol Interference Two-dimensional Modulation Code
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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