A nonstationary analysis of bandwidth access control schemes for heterogeneous traffic in B-ISDN

Authors:
Yi Qian;David Tipper;Deep Medhi
Affiliations:
Department of Electrical and Computer Engineering, Clemson University, Clemson, SC;Department of Information Science, University of Pittsburgh, Pittsburgh, PA;Department of Computer Networking, University of Missouri-Kansas City, Kansas City, MO
Venue:
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 2
Year:
1996

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Abstract

In this paper we present a comparative analysis of bandwidth access control schemes under nonstationary traffic conditions for heterogeneous circuit-mode traffic offered to a B-ISDN network link. A unified model to analyze the behavior of several bandwidth access control schemes is developed using a Markov process model with acceptance functions. Numerical method techniques are used to solve the associated Chapman-Kolmogorov equations and determine the nonstationary behavior. Performance results am given for several common bandwidth access control schemes, namely: complete sharing, complete partitioning, partial sharing, classical trunk reservation, and the probabilistic reservation policy. It is shown that the use of the average arrival rate to estimate the average connection blocking rate may be an underestimate for a system with a time varying arrival process. Also, it is found that a nonstationarity in one traffic class arrival process can impact other stationary trafic classes and the degree of variability depends on the particular access control scheme.