Systems Seminar
Network Global Expectation Model: A Formalism for Quickly
Quantifying Network Needs and Costs
Dr. Steven K. Korotky
Bell Labs/Lucent Technologies
Holmdel, NJ
Abstract
The performance of communication networks, systems, constituent elements,
technologies, and new concepts may be evaluated by many metrics.
Consequently, to judge alternative or competing solutions, usually a
basic set of minimum network requirements are specified and comparisons
are made on the basis of the most efficient use of resources and/or
operational simplicity. The measure of this efficiency takes the
form of one or more costs. Here I describe the use of expectation
values, i.e., means and variances, of key variables evaluated over the
entire network to quantify the needs and costs of communication networks
analytically. By trading off detailed knowledge of the routing of
traffic and the placement of network resources to increase the speed of
computation, this approach enables analyses of architectures, technological
implementations, and potential insights for networks scenarios that might
otherwise not be practical or possible. I illustrate the model in the
context of backbone, long-distance, voice/data communication networks.
Time and Place: Wed., Oct. 22, at 3:30 pm in 4610 Engr. Hall.
SYSTEMS SEMINAR WEB PAGE:
http://www.cae.wisc.edu/~gubner/seminar/