A Framework for Robust Measurement-Based Admission Control

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A Framework for Robust Measurement-Based Admission Control (1999)

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by Matthias Grossglauser , David N. C. Tse

Venue:	IEEE/ACM Transactions on Networking
Citations:	106 - 2 self

BibTeX

@ARTICLE{Grossglauser99aframework,
    author = {Matthias Grossglauser and David N. C. Tse},
    title = {A Framework for Robust Measurement-Based Admission Control},
    journal = {IEEE/ACM Transactions on Networking},
    year = {1999},
    volume = {7},
    pages = {293--309}
}

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Abstract

Measurement-based admission control (MBAC) is an attractive mechanism to concurrently offer quality of service (QoS) to users, without requiring a priori traffic specification and on-line policing. However, several aspects of such a system need to be clearly understood in order to devise robust MBAC schemes, i.e., schemes that can match a given QoS target despite the inherent measurement uncertainty, and without the tuning of external system parameters. We study the impact of measurement uncertainty, flow arrival, departure dynamics, and of estimation memory on the performance of a generic MBAC system in a common analytical framework. We show that a certainty equivalence assumption, i.e., assuming that the measured parameters are the real ones, can grossly compromise the target performance of the system. We quantify the improvement in performance as a function of the length of the estimation window and an adjustment of the target QoS. We demonstrate the existence of a critical time scale over which the impact of admissin decisions persists. Our results yield new insights into the performance of MBAC schemes, and represent quantitative and qualitative guidelines for the design of robust schemes.

Keyphrases

robust measurement-based admission control system need certainty equivalence assumption on-line policing real one attractive mechanism departure dynamic estimation memory robust mbac scheme robust scheme critical time scale qos target target performance new insight flow arrival target qos measured parameter inherent measurement uncertainty estimation window common analytical framework mbac scheme admissin decision represent quantitative external system parameter several aspect measurement uncertainty priori traffic specification qualitative guideline generic mbac system measurement-based admission control

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