Titlebook: Data Transportation and Protection; John E. Hershey,R. K. Rao Yarlagadda Book 1986 Plenum Press, New York 1986 ISDN.Protection.communicati

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,Data—Its Representation and Manipulation,oncept—number systems. The number systems considered are those common ones of “normal binary representation,” negabinary, and Gray coding. We also introduce a less well known “mixed-radix system,” based on the factorials. This representation will be of use to us later on when we look at combinatorics.

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Source Encoding, and appropriately model the data source. Is it English text? A Markov source? Facsimile? Each source is unique and so are its output statistics. There is often great opportunity to remove redundancy from a source by using simple encoding methods and doing so may result in an appreciable savings in bits sent.