Accession Number:

AD0611309

Title:

A NOTE ON SELECTION OF A CHANNEL MODEL.

Descriptive Note:

Corporate Author:

NEW YORK UNIV N Y LAB FOR ELECTROSCIENCE RESEARCH

Personal Author(s):

Report Date:

1964-12-01

Pagination or Media Count:

24.0

Abstract:

The finite-state channel model assumed in Shannons noisy channel theorem yields the conclusion that error probability can be reduced exponentially with code length at any information rate less than channel capacity. Evidence from statistics of real channels suggests, however, that this exponential behavior is not achievable for any code duration which might conceivably be used in practice. This report exhibits an infinite-state model which leads to a somewhat different conclusion about what can be accomplished with coding than would be reached with a finite-state model namely, that error probability can be reduced only as a small power of code length. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE