Virtual network embedding, which means mapping virtual networks requested by users to a
shared substrate network maintained by an Internet service provider, is a key function that …

Abstract In Network as a Service model in cloud computing, how to efficiently embed virtual
networks with both node and link demands into a shared physical network, namely virtual …

In network virtualization, one of its core challenges lies in how to map the virtual networks
(VNs) to the shared substrate network (SN) that is managed by an infrastructure provider …

In this paper, we address a virtual network embedding problem. Indeed, our objective is to
map virtual networks in the substrate network with minimum physical resources while …

Waste of energy due to over-provisioning and over-dimensioning of network infrastructures
has recently stimulated the interest on energy consumption reduction by Internet Service …

The rising cost of electricity has forced business organizations to find new ways to cut
energy spending. This paper studies how to reduce energy consumption in virtual network …

In network virtualization, there are two decoupled roles involved:(i) infrastructure providers
who manage the substrate network, and (ii) service providers who request virtual networks …

Network Virtualization provides a promising tool to allow multiple heterogeneous virtual
networks to run on a shared substrate network simultaneously. A long-standing challenge in …

Network virtualization is considered to be not only an enabler to overcome the inflexibility of
the current Internet infrastructure but also an enabler to achieve an energy-efficient Future …

Network virtualization allows multiple heterogeneous virtual networks (VNs) to coexist on a
shared infrastructure. Efficient mapping of virtual nodes and virtual links of a VN request onto …