The increasing demand for diverse network services entails more flexible networks that are
realized by virtualized network equipment and functions. When such advanced network …

Network function virtualization (NFV), a novel network architecture, promises to offer a lot of
convenience in network design, deployment, and management. This paradigm, although …

This paper addresses progressive network recovery under uncertain knowledge of
damages. We formulate the problem as a mixed integer linear programming (MILP), and …

Network virtualization allows users to build customized interconnected storage/computing
configurations for their business needs. Today this capability is being widely used to …

The network transformation from physical network function to Virtual Network Function (VNF)
requires a fundamental design change in the way applications and services are tested and …

Network Function Virtualization (NFV) is a network service deployment technology that
reduces capital and operational costs while yielding flexibility and scalability for service …

Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) are two
emerging paradigms that enable the feasible and scalable deployment of Virtual Network …

This paper proposes an optimization model to derive a resilient virtual network function
(VNF) allocation aiming to maximize the number of accepted requests with considering VNF …

Fault-tolerance in a virtualized networking environment (VNE) requires additional efforts to
provide the survivability against failures on either virtual networks (VNs) or the underlying …

Fault tolerance is critical for constructing a reliable service in Network Functions
Virtualization (NFV). In this paper, we propose novel models and algorithms that provide the …