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Low Complexity Symbol Detection Method for Multilevel 2-D Optical Storage Based on a Linear Channel Model.

Moinian, Abdolhosein and Fagoonee, Lina and Honary, Bahram (2005) Low Complexity Symbol Detection Method for Multilevel 2-D Optical Storage Based on a Linear Channel Model. OPTICAL ENGINEERING, 44 (10). ISSN 0091-3286

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Abstract

A symbol detection scheme based on the Viterbi algorithm that simultaneously processes subsets of 2-D data in the presence of Gaussian noise was recently proposed for binary 2-D optical storage (TwoDOS). In the case of multilevel TwoDOS, a straightforward full-fledged maximum likelihood symbol detector, or even the previous Viterbi-based algorithm, is not an ideal solution due to complexity restrictions. We propose a suboptimum low complexity symbol detector, which still performs within the accepted performance bound for optical storage. We describe the procedures involved in designing and developing a practical symbol detection scheme for multilevel TwoDOS by analyzing the signal values generated by a linear channel model in the presence of Gaussian noise. Our proposed detection scheme exploits the properties of the 2-D data format on the disk, and is flexible enough to accommodate performance and complexity restrictions for optical storage applications.

Item Type: Article
Journal or Publication Title: OPTICAL ENGINEERING
Uncontrolled Keywords: DCS-publications-id ; art-730 ; DCS-publications-credits ; coding-fa ; DCS-publications-personnel-id ; 72 ; 34 ; 1
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 9873
Deposited By: ep_importer_dcs
Deposited On: 03 Jul 2008 11:18
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 22:18
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/9873

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