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Amélioration de la mesure de la bande passante dans un réseau basé sur IP

Abstract : This thesis work is focused on the end-to-end available bandwidth measurement that has attracted extensive attentions this last decade. This parameter is useful for several network applications, however, its measurement with good accuracy still stays a challenge to take up. To improve the performance of the available bandwidth measurement techniques, we developed a new deterministic model of packet pair delays that takes into account the probing packet size parameter; and implemented it in a new measurement tool called IGMPS. Through measurements on several network testbed configurations, we evaluated IGMPS and found that it provides available bandwidth measurements with high accuracy. Using sensitivity and uncertainty analysis to study the proposed model, we investigated the sources of observed errors on the measurement tools. We found that these errors are likely to be inherent in delay measurement. Indeed, the timestamping operations at the sender end the receiver are mainly at the origin of the inaccuracy of the estimates provided by the available bandwidth measurement tools.
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https://hal.univ-lorraine.fr/tel-01748323
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  • HAL Id : tel-01748323, version 1

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Ahmed Aït Ali. Amélioration de la mesure de la bande passante dans un réseau basé sur IP. Autre [cs.OH]. Université Henri Poincaré - Nancy 1, 2007. Français. ⟨NNT : 2007NAN10088⟩. ⟨tel-01748323⟩

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