Wireless Sensor Networks (WSNs) are gaining importance for their broad range of commercial applications such as in home automation, health-care and industrial automation. In these applications multi-vendor and heterogeneous sensor nodes are deployed. Due to strict administrative control over the WSN domains, communication barrier, conflicting goal & economic interest of different vendors of sen...

Recently network virtualization has been proposed as a promising approach to thwart the current ossification of the Internet by allowing multiple heterogeneous virtual networks (VN) to coexist on a shared infrastructure which itself is controlled by self-interested infrastructure providers. A major challenge in this respect is the VN embedding problem that deals with efficient mapping of virtua...

This paper presents a new virtualization method for the downlink of multi-cell multiple-input multiple-output (MIMO) network, to achieve service isolation among multiple Service Providers (SPs) that share base station resources an Infrastructure Provider (InP). Each SP designs virtual precoder its users in each cell, as demand InP, without need be aware existence other SPs or know channel state...

We introduce a virtualization technology into the control system as operator consoles. The virtualization technology is a hot topic for server computing. The virtualization technology enables to consolidate a lot of server computers to a few host computers and reduces system maintenance cost drastically. Recently a dozen of commercial and non-commercial virtualization products are proposed. We ...

Hosting virtual servers on a shared physical hardware by means of hardware virtualization is common use at data centers, web hosters, and research facilities. All virtualization platforms include isolation techniques that restrict resource consumption of the virtual guest systems. Therefore, they setup quotas for the virtual guest systems on the use of processors, memory, and hard disk of the h...

An L2-in-L3 tunneling technology plays an important role in network virtualization based on the concept of Software-Defined Networking (SDN). VXLAN (Virtual eXtensible LAN) and NVGRE (Network Virtualization using Generic Routing Encapsulation) protocols are being widely used in public cloud datacenters. These protocols resolve traditional VLAN problems such as a limitation of the number of virt...

Network virtualization has long been a goal of of the network research community. With it, multiple isolated logical networks each with potentially different addressing and forwarding mechanisms can share the same physical infrastructure. Typically this is achieved by taking advantage of the flexibility of software (e.g. [20, 23]) or by duplicating components in (often specialized) hardware[19]...