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Network function virtualization : concepts and applicability in 5G networks
Zhang Y., John Wiley & Sons, Inc., Hoboken, NJ, 2018. 192 pp. Type: Book (978-1-119390-60-2)
Date Reviewed: Mar 21 2019

The exponential growth of cellular network data, which grows at a pace of 60 percent per year and is expected to increase even more due to the growth of Internet of Things (IoT) networks, poses some unprecedented challenges to the design of data networks. To cope with these challenges, cellular network operators needed to rethink the whole cellular architecture, adopting concepts from the realm of information technology (IT), such as virtualization and cloud computing. Virtualization and cloud computing offer elasticityand resource multiplexing, two properties that lead to decreasing costs, scalability in workloads, and easy innovation, among others.

So network operators adopted the idea of decoupling the operations of data forwarding from routing intelligence, which can now reside in different hardware machines/servers operating even in the cloud. This idea is at the heart of the software-defined networking (SDN) paradigm. Moreover, operators are gradually implementing network function virtualization (NFV) to ease programmability, flexibility, and network function sharing.

This book comprises a brief and comprehensive introduction to the world of SDN and network function virtualization, as they are being developed for the forthcoming 5G cellular networks. The book is composed of six chapters. The first two offer a glimpse of the concepts and technologies related to virtualization and cloud computing, as they are used in wired and wireless networks. The third chapter dives into NFV technologies and architectures, whereas the fourth chapter describes SDN in detail, including its high-level architectures, design considerations, and use cases. The next chapter reviews the topic of NFV, including significant use cases for 5G networks. Finally, the last chapter introduces some open-source projects, including OpenStack, OpenDaylight, open platform for NFV (OPNFV), and central office re-architected as a datacenter (CORD), whose aim is to provide open-source code for developing the technologies described in the book, namely the cloud, SDN, and NFV.

The book can operate as an entry point to the world of SDN and NFV for 5G networks, and it is appropriate for scientists and engineers working in this area. It is also appropriate for advanced undergraduate or graduate students doing research in the field.

Reviewer:  Dimitrios Katsaros Review #: CR146481 (1906-0206)
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