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On Symbol Error Probability of DC Component Suppressing Systems

Akiomi KUNISA, Nobuo ITOH

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Summary :

The DC component suppressing method, called Guided Scrambling (GS), has been proposed, where a source bit stream within a data block is subjected to several kinds of scrambling and a RLL (Run Length Limited) coding to make the selection set of channel bit streams, then the one having the least DC component is selected. Typically, this technique uses a convolutional operation or GF (Galois field) conversion. A review of their respective symbol error properties has revealed important findings. In the former case, the RS (Reed-Solomon) decoding capability is reduced because error propagation occurs in descrambling. In the latter case, error propagation of a data block length occurs when erroneous conversion data occurs after RS decoding. This paper introduces expressions for determining the decoded symbol error probabilities of the two schemes based on these properties. The paper also discusses the difference in code rates between the two schemes on the basis of the result of calculation using such expressions.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E81-A No.10 pp.2174-2179
Publication Date
1998/10/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section LETTER (Special Section on Information Theory and Its Applications)
Category
Coding Theory

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