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One of the main challenges of network virtualization is efficient mapping of virtual nodes and virtual links onto the substrate network resources, which is known as virtual network embedding (VNE) problem. This paper aims to increase the revenue and utilization of infrastructure provider as well as achieve efficiency mapping. Due to the NP-hard character of VNE, we model the VNE problem as an integer...
Most of the current researches in virtual network embedding field often assume that the VN requests are static. However, in practical cases, virtual network requests on substrate resources change dynamically over time. To support such dynamical feature, we model the VNE problem as a mixed linear programming problem and use multiple queues to store different types of virtual network requests respectively...
Current data centers in cloud computing have flexible mechanisms to lease compute resources, but provide little control mechanism to share network resource. Traffic flows from different tenants' VMs will competing network resource on the substrate network, thus can resulting in unpredictable performance degradation. This paper proposes an economic model for fair leasing the network resource between...
For future Internet, network virtualization provides the feasibility of running multiple routing architectures on a shared physical infrastructure. This paper presents the design and evaluation of a bandwidth allocation algorithm based on multi-commodity flow problem solver, which integrated with a traffic predictor. The basic idea of our design is that some failure in the MFP computation implies...
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