Doan Van Tung

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Network function virtualization (NFV) provides flexible and scalable network services by leveraging software-based network appliances. In an NFV architecture, the virtual network function manager (VNFM) has a critical role in provisioning, configuring, and operating virtual network functions (VNFs) and service function chaining (SFC). In addition, the VNF(More)
One considerable challenge in future heterogeneous wireless networks (HetNet) is vertical handover. Current vertical handover approaches almost focus on resolving two questions: (1) when a Mobile Station (MS) needs to carry out a vertical handover (VHO) procedure; and (2) how a proper handover decision can be made in a HetNet environment. Actually, some(More)
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