16 September 2003 Comparison of multilevel runlength and fixed-length modulation for optical data storage
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Proceedings Volume 5069, Optical Data Storage 2003; (2003) https://doi.org/10.1117/12.533133
Event: Optical Data Storage 2003, 2003, Vancouver, Canada
In this paper we consider theoretical and practical aspects of a multilevel, re-writable and write-once optical recording system with compact disc parameters. A linear time invariant channel model is presented. We compare fixed-length and variable length runlength limited (RLL) coding and find that for the mark lengths of interest (600 nm for CD) M=4 is the optimum number of levels for RLL coding. For fixed-length modulation M=8 is the optimum number of levels and it is superior to RLL overall. We also show that M-ary RLL is a practical alternative if stronger coding can be applied to it.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Estuardo Licona, Estuardo Licona, Steven W. McLaughlin, Steven W. McLaughlin, } "Comparison of multilevel runlength and fixed-length modulation for optical data storage", Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); doi: 10.1117/12.533133; https://doi.org/10.1117/12.533133


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