Cherif Ghazel

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Satisfying the Quality of Service (QoS) requirements is one of the main objectives in the design and implementation of IP-based Next Generation Networks (NGN). This paper formalizes an efficient NGN resource-based call admission control (CAC) method which guarantees the QoS requirements expressed in terms of per-service traffic flow throughput, latency,(More)
The quality of service (QoS) in the Next Generation Networks (NGN) has been of a particular interest to researchers, system designers, standardization organizations and various industries affected by these networks. In this paper, we propose and outline a control and signalling model which guarantees an end-to-end QoS for multi-service traffics in the NGN(More)
Next generation Networks (NGN) are required to support the seamless delivery of voice, video and data with high quality. One of the most important key features of NGN is Quality of Service (QoS), which has been a focal point of NGN research, development and standardization. In this work, we propose and demonstrate an efficient NGN QoS-Aware resource and(More)
In this paper, we propose a set of dimensioning rules, which deliver high quality session-based services over a Next Generation Network based IP/MPLS transport infrastructure. In particular, we develop a detailed dimensioning methodology for improving a target QoS requirement. The proposed methodology outlines an optimal equipment allocation strategy for a(More)
The development of more powerful communication systems, such as NGN networks, will soon make traditional communication systems obsolete. Instead of wasting these expensive and functional resources, it is more economical to explore ways of transforming them into sophisticated NGN-compatible architectures. This can be achieved through a suitably designed(More)
In this paper, we propose a set of dimensioning rules, which deliver high quality session-based services over an NGN network based IP/MPLS transport infrastructure. In particular, we develop a detailed dimensioning methodology for achieving a target QoS requirement, expressed in terms of per-service traffic flow throughput and delay. The proposed(More)
The quality of service is one of challenges posed by the Cloud Computing. This issue plays an important role in making the Cloud services acceptable to customers, denotes the levels of performance, reliability, and availability offered by Cloud services. Literature has reported many implementations for measuring and ensuring QoS in Cloud Computing systems(More)
Next generation Networks (NGN) are required to support the seamless delivery of voice, video and data with high quality. One of the most important key features of NGN is Quality of Service (QoS), which has been a focal point of NGN research, development and standardization. In this work, we propose and demonstrate an efficient NGN QoS-Aware resource and(More)