Technical Report CS0958

TR#:CS0958
Class:CS
Title: Lossless Sliding-Block Compression of Constrained Systems
Authors: John L. Fan, Brian H. Marcus, Ron M. Roth
PDFCS0958.pdf
Abstract: A method is presented for designing lossless sliding-block compression schemes that map constrained sequences onto unconstrained ones. The new compression scheme is incorporated into a coding technique for noisy constrained channels, which has applications to magnetic and optical storage. As suggested recently by Immink, the use of a lossless compression code can improve the performance of a modified concatenation scheme where the positions of the error-correcting code and constrained code are reversed (primarily in order to eliminate error-propagation due to the constrained code). Examples are presented that demonstrate the advantage of using sliding-block compression over block compression in a noisy constrained setting.
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