Network Functions Virtualization (NFV) is a promising network architecture where network functions are virtualized and decoupled from proprietary hardware. In modern datacenters, user network traffic requires a set of Virtual Network Functions (VNFs) as a service chain to process traffic demands. Traffic fluctuations in Large-scale DataCenters (LDCs) could result in overload and underload pheno...

Separation of policy from mechanism is a well-known principle in computing literature. Network virtualization reincarnates this very concept in the context of networking architecture. But most of the existing works either tangentially touch the issues regarding the implementation of such architecture or just ignore them completely. In this article we present NVP2P, a network virtualization fram...

This paper discusses and brings together a detailed analysis of virtualization implemented at various levels of computing infrastructure, keeping in mind and providing detailed transition process adopted for transition from a classical to virtualized data center. It focuses on emerging trends or areas related with storage virtualization. Further, its various network level virtualization based i...

This paper presents the concepts of network virtualization, focusing specifically on wireless virtualization of the LTE mobile communication system. A novel wireless virtualization framework is proposed and developed, which allows mobile network operators to share the wireless spectrum, as well as, the infrastructure (i.e., hardwares equipment). The framework targets the concepts of wireless vi...

Recently, server virtualization technology, which is one of the key technologies to support cloud computing, has been making progress and gaining in maturity, resulting in an increase in the provision of cloudbased services and the integration of servers in enterprise networks. However, the progress in network virtualization technology, which is needed for the efficient and effective constructi...

ii Acknowledgements iii List of Figures vi List of Tables viii Acronyms ix Chapter 1 Introduction 1 1.1 Motivation ................................................................................................... 1 1.2 Research problems and Objectives ............................................................. 3 1.3 Research Contributions .......................................................

The continuous increase of computational power has made viable the implementation of more and more sophisticated virtualization techniques. The use of virtualization in cluster environments to build on-demand computing infrastructures is a recent trend with a great potential. Clusterbased network emulators are a specific class of clusterbased systems whose main purpose is to help researchers ev...

Network Function Virtualization has emerged as an operator proposal for offering network services with network functions implemented in software, which may be located in Data Centers, network nodes or even in a virtual machine. NFV is theoretically applicable to any network function and aims at simplifying the management of heterogeneous hardware platforms. Using as a basis one of the network f...