1 October 2005 Low complexity symbol detection method for multilevel 2-D optical storage based on a linear channel model
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Optical Engineering, 44(10), 105201 (2005). doi:10.1117/1.2087647
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.
Abdolhosein Moinian, Lina Fagoonee, Bahram Honary, "Low complexity symbol detection method for multilevel 2-D optical storage based on a linear channel model," Optical Engineering 44(10), 105201 (1 October 2005). http://dx.doi.org/10.1117/1.2087647
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