To code or not to code

The theory and practice of digital communication during the past 50 years has been strongly influenced by Shannon's separation theorem. While it is conceptually and practically appealing to separate source from channel coding, either step requires infinite delay in general for optimal performance. On the other extreme is uncoded transmission, which has no delay but is suboptimal in general. In this paper, necessary and sufficient conditions for the optimality of uncoded transmission are shown. These conditions allow the construction of arbitrary examples of optimal uncoded transmission (beyond the well-known Gaussian example).


Published in:
IEEE International Symposium on Information Theory, 236
Presented at:
ISIT 2000, Sorrento, Italy, 25-30 June 2000
Year:
2000
Keywords:
Laboratories:




 Record created 2005-04-18, last modified 2018-03-18

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