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Next Generation Networks (NGN) principle or 5G technology, is based on the integration of heterogeneous wireless systems and cognitive networks. NGN is expected to have Quality of Service (QoS) as the major challenging issue. More specifically, NGN aims at providing guaranteed QoS levels and Quality of Experience (QoE), especially for multimedia services. However, with the increase in number of connections,...
A cloud computing as a distributed computing emerging paradigm in which data and services are available in data centers extensible and can be accessed transparently since devices (computers, phones, clusters, ) connected via the Internet. Cloud computing solve problems of scalability and availability and insure distributed computing. This paper aims to provide an architecture for services deployed...
In a cloud computing environment, cloud users are competing for the same shared resources in order to run their applications or storage their data. In fact, cloud providers try to offer the necessary resources according to the users' demands giving the illusion of infinite resources. However, when these resources are insufficient to satisfy the users' requirements, conflicts may appear. Thus, it is...
Among the many limitations that the clouds are facing today, the heterogeneity of IT resources and networks. The dynamic deployment and on-demand applications are also major challenges. To ensure this deployment, it is essential to rely on methods of managing applications and services in a cloud. This paper proposes to apply the concept of Virtual Appliance for cloud architectures to ensure the dynamic...
Deploying decode-and-forward relay nodes is a promising solution for LTE-advanced networks in order to meet the growing data rate demand and the challenging requirements for coverage extension. However, relay selection scheme plays a crucial role in enhancing the benefit of this technology. In this paper, we have proposed a new relay selection scheme which achieves a more balanced load in the network,...
Cloud computing known as an IT environment that includes all elements of the IT and network stack, enabling the development, delivery, and consumption of Cloud Services. In this paper we present Some SOA frameworks which could be used in our proposition. We introduce a concept of virtualization and multi-tenancy in the cloud. We studied it with some works in this area which combined theses technologies...
Cloud computing known as an IT environment that includes all elements of the IT and network stack, enabling the development, delivery, and consumption of Cloud Services. In this paper we present Some SOA frameworks which could be used in our proposition. We introduce a concept of multi-tenancy. We studied it with some works in this area which combined SOA, multi-tenancy and cloud. We are interested...
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