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A Unified Metric for Quality of Service Quantification
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BibTeX
@MISC{Alipio_aunified,
author = {Pedro Alipio and Solange Rito Lima and Paulo Carvalho},
title = {A Unified Metric for Quality of Service Quantification},
year = {}
}
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Abstract
Internet service providers usually express the quality of network services through a set of values determined according to several network performance parameters periodically collected or measured. However, for common end-users, these values do not give an overall idea of the quality of the network services as they stand for different units and evaluate different perspectives of each service quality. In this context, this paper proposes the definition of a serviceoriented unified metric which quantifies a global Quality of Service (QoS) indication by processing standard QoS parameters through a fuzzy controller. The proposed methodology, based on fuzzy logic and tested on Xfuzzy 3.0 platform, allows to close the gap between a high-level QoS perspective and the effective QoS measurements at lower protocolar levels. The definition of a single per-service QoS metric can be useful to simplify control tasks such as QoS routing, SLA negotiation and auditing.
Keyphrases
service quantification unified metric network service service quality several network performance parameter fuzzy controller protocolar level high-level qos perspective proposed methodology overall idea qos routing sla negotiation standard qos parameter global quality fuzzy logic control task common end-users internet service provider single per-service qos effective qos measurement different perspective different unit
