Share Email Print

Optical Engineering

Low complexity symbol detection method for multilevel 2-D optical storage based on a linear channel model
Author(s): Abdolhosein Moinian; Lina Fagoonee; Bahram Honary
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper 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.

Paper Details

Date Published: 1 October 2005
PDF: 8 pages
Opt. Eng. 44(10) 105201 doi: 10.1117/1.2087647
Published in: Optical Engineering Volume 44, Issue 10
Show Author Affiliations
Abdolhosein Moinian, Lancaster Univ. (United Kingdom)
Lina Fagoonee, Lancaster Univ. (United Kingdom)
Bahram Honary, Lancaster Univ. (United Kingdom)

© SPIE. Terms of Use
Back to Top