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IMPLEMENTATION AND EVALUATION OF MEASUREMENT-BASED ADMISSION CONTROL SCHEMES WITHIN A CONVERGED NETWORKS QOS MANAGEMENT FRAMEWORK

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Author(s): Suleiman Y. Yerima

Journal: International Journal of Computer Networks & Communications
ISSN 0975-2293

Volume: 3;
Issue: 4;
Start page: 137;
Date: 2011;
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Keywords: Policy-Based Network Management | Measurement-Based Admission Control | Resource Management | Network and Service Management

ABSTRACT
Policy-based network management (PBNM) paradigms provide an effective tool for end-to-end resourcemanagement in converged next generation networks by enabling unified, adaptive and scalable solutionsthat integrate and co-ordinate diverse resource management mechanisms associated with heterogeneousaccess technologies. In our project, a PBNM framework for end-to-end QoS management in convergednetworks is being developed. The framework consists of distributed functional entities managed within apolicy-based infrastructure to provide QoS and resource management in converged networks. Within anyQoS control framework, an effective admission control scheme is essential for maintaining the QoS offlows present in the network. Measurement based admission control (MBAC) and parameter basedadmission control (PBAC) are two commonly used approaches. This paper presents the implementationand analysis of various measurement-based admission control schemes developed within a Java-basedprototype of our policy-based framework. The evaluation is made with real traffic flows on a Linux-basedexperimental testbed where the current prototype is deployed. Our results show that unlike with classicMBAC or PBAC only schemes, a hybrid approach that combines both methods can simultaneously resultin improved admission control and network utilization efficiency.
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