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This paper studies the performance of cooperative wireless networks using incremental-relaying and dual transmit diversity with the simple orthogonal space time block coding (OSTBC) scheme. The proposed model is studied by utilizing different relaying schemes including decode and forward (DF), amplify and forward (AF), and adaptive incremental-relaying (i.e., best relay selection) with DF relaying...
Network Function Virtualization (NFV) and Software-Defined Networking (SDN) are two paradigms that have attracted much attention in the networking field. The first permits the implementation of Network Functions (NFs) on commodity servers located in datacenters. The second facilitates the management and routing of network flows by controllers. While recent work has mostly explored the use of NFV and...
Software-Defined Networking (SDN) is a new technology paradigm that decouples the data and control planes and allows operators to manage networks via an abstraction model. SDN offers dynamism, scalability and flexibility for modern networking environments. However operators still have to design SDN solutions to deploy flow rules in an efficient and automated manner. Hence effective path computation,...
Network virtualization allows users to build cusomized interconnected storage/computing configurations for their business needs. Today this capability is being widely used to improve the scalability and reliability of cloud-based services, including virtual infrastructures services. However, as more and more business-critical applications migrate to the cloud, disaster recovery is now a major concern...
Cloud-based services allow users to outsource their application and infrastructure needs over external datacenter/ networking facilities. However, as these offerings gain traction, there is a pressing need to address disaster recovery concerns, particularly for (virtual network) infrastructure services. However, only a handful of studies have looked at designing robust storage/computing/networking...
The growth of different types of applications in the Internet arises the need for supporting Quality of Service (QoS) for them. Differentiating services aims to differentiate among applications in order to provide their requirements based on the level of QoS they need and their characteristics. In this paper we introduce a dynamic QoS-Aware queuing algorithm to differentiate services in IP basednetworks,...
Packet classification and packet scheduling are important and basic techniques used in network nodes, in order to provide quality of service for packets belonging to different applications. In this paper we propose a new priority based, adaptive queuing algorithm, including an adaptive, packet-by-packet classifier for differentiating services in IP based networks. The proposed queuing paradigm focuses...
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