Semi-Parametric Effective-Bandwidth Estimator Based on Buffer Measurements

Shigeo SHIODA  Daisuke ISHII  

IEICE TRANSACTIONS on Communications   Vol.E87-B    No.12    pp.3627-3636
Publication Date: 2004/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
Internet,  quality of service,  effective bandwidth,  traffic,  extreme value analysis,  

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The notion of effective bandwidth provides an elegant and powerful mathematical basis for the provision of QoS-assured services over IP networks. In this paper, we propose a semi-parametric estimator of effective bandwidth, called Gaussian estimator using buffer masurement, for superposition of sources in IP networks. In contrast to most existing proposals concerning the effective bandwidth estimator, our proposal works based on a small set of measurements of the workload in the buffer of a router. We analytically show the property of the proposed estimator with respect to the dependence on the service rate. We provide numerical results to show that our proposed estimator is more accurate than estimators that rely only on the amount of traffic from sources.