With the rapid development of information and communication technology (ICT), the demand
for flexible and cost-effective network services (NSs) is growing exponentially. Network …

Abstract By emerging Network Function Virtualization (NFV), service providers use VNFs
(Virtual Network Functions) and VNF service chain (VNF-SC) as an agile, scalable, and cost …

Abstract Network Function Virtualization (NFV) is a novel technology that enables flexible
and cost-effective network services by replacing the hardware-based middleboxes with …

Recently, Network Function Virtualization (NFV) as a promising technology has attracted
great interest of the academia as well as industry. Most of the service providers are planning …

Network Function Virtualization (NFV) technology can realize on-demand distribution of
network resources and improve network flexibility. It has become one of the key …

It is known that by incorporating network function virtualization (NFV) in inter-datacenter
(inter-DC) networks, we can use the network resources more intelligently to deploy new …

Network function virtualization (NFV) is emerging as a promising paradigm for network
architectures. By migrating network functions from dedicated hardware appliances to …

In today's datacenters (DCs), IT resources virtualization is leveraged to realize Network
Function Virtualization (NFV) over general-purpose servers. Meanwhile, most of the service …

It is known that by incorporating network function virtualization (NFV) in inter-datacenter
(inter-DC) networks, service providers can use their network resources more efficiently and …

We study how to allocate spectrum and IT resources jointly for realizing efficient virtual
network function (VNF) service chaining in inter-datacenter elastic optical networks. We first …