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Low complexity symbol detection method for multilevel 2-D optical storage based on a linear channel model

Moinian, A. and Stankovic, L. and Honary, B. (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
ID code: 37083
Keywords: detection, detector, optical storage, Electrical engineering. Electronics Nuclear engineering, Engineering(all), Atomic and Molecular Physics, and Optics
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date Deposited: 25 Jan 2012 15:55
Last modified: 26 Mar 2015 16:33
URI: http://strathprints.strath.ac.uk/id/eprint/37083

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