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Network Function Virtualization (NFV) enables mobile operators to virtualize their network entities as Virtualized Network Functions (VNFs), offering fine-grained on-demand network capabilities. VNFs can be dynamically scale-in/out to meet the performance desire and other dynamic behaviors. However, designing the auto-scaling algorithm for desired characteristics with low operation cost and low latency,...
In cloud computing paradigm, virtual resource autoscaling approaches have been intensively studied recent years. Those approaches dynamically scale in/out virtual resources to adjust system performance for saving operation cost. However, designing the autoscaling algorithm for desired performance with limited budget, while considering the existing capacity of legacy network equipment, is not a trivial...
Cloud computing paradigm is becoming very popular these days. However, it does not include wireless sensors and mobile phones which are needed to enable new emerging applications such as remote home medical monitoring. Therefore, a combined Cloud-Internet of Things (IoT) paradigm provides scalable on-demand data storage and resilient computation power at the cloud side as well as anytime, anywhere...
This paper studies an evolutionary game theoretic framework for adaptive and stable application deployment in clouds. The framework, called Cielo, aids cloud operators to adapt the resource allocation to applications and their locations to the operational conditions in a cloud (e.g., workload and resource availability) with respect to multiple conflicting objectives (e.g., response time and power...
A key technology of cloud computing is virtualization, which can lead to reduce the total cost and increase the application flexibility. However along with these benefits come added security challenges. The extension of Trusted Computing to virtual environments can provide secure storage and ensure system integrity. In this paper, we describe and analyze several existing virtualization of TPM (vTPM)...
Cloud computing enables organizations to realize the commercial benefits while facing the new security issues. In this paper, we presents a security model for called the Trusted Private Virtual Data center (TVPDc) that offering centralized security management of the computing and storage resources distributed in different locations and physical machines within an IaaS cloud. The TVPDc model can satisfy...
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