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Experience-Based Admission Control in the Presence of Traffic Changes

Jens Milbrandt, Michael Menth, and Jan Junker
University of W¨urzburg, Institute of Computer Science, Germany
Abstract—This article investigates the transient behavior ofexperience-based admission control (EBAC) in case of trafficchanges. EBAC is a robust and resource-efficient admissioncontrol (AC) mechanism used for reservation overbookingof link capacities in packet-based networks. Recent analysesgave a proof of concept for EBAC and showed itsefficiency and robustness through steady state simulation ona single link carrying traffic with constant properties. Thecontribution of this paper is an examination of the memoryfrom which EBAC gains its experience and which stronglyinfluences the behavior of EBAC in stationary and nonstationarystate. For the latter, we investigate the transientbehavior of the EBAC mechanism through simulation ofstrong traffic changes which are characterized by either asudden decrease or increase of the traffic intensity. Ourresults show that the transient behavior of EBAC partlydepends on its tunable memory and that it copes well witheven strongly changing traffic characteristics.

Index Terms—admission control, reservation overbooking,quality of service, resource & traffic management

Cite: Jens Milbrandt, Michael Menth, and Jan Junker, "Experience-Based Admission Control in the Presence of Traffic Changes," Journal of Communications, vol. 2, no. 1, pp. 10-21, 2007.
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