Accession Number:

AD0287453

Title:

UPPER BOUND TO THE CAPACITY OF A LINEAR TIMEVARYING CHANNEL WITH ADDITIVE GAUSSIAN NOISE

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

Report Date:

1962-09-26

Pagination or Media Count:

1.0

Abstract:

The analysis is concerned with the evaluation of the upper bound to the capacity of a linear time-varying channel obtained by finding the capacity of the same channel when its behavior at all times is known a priori. Numerical evaluation turns out to depend on the ditribution of the eigenvalues of a random infinite-dimensional matrix, which is apparently an unsolved mathematical problem. Evaluation is possible in two special ases first, where the channel is not time-varying in which case the capacity formula reduces to that formerly known second, when the channel has no memory, that is y ax u, where a is random and n is white and gaussian. 9author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE