Exploring Software-Defined Networking (SDN) and the fundamentals of network virtualization, Network Function Virtualization (NFV) helps service providers and network operators to adapt to the modern hybrid network architectures. As it separates the network functions from dedicated hardware devices to host services, many challenges arise. The flexibility of such technologies will enable the IT professionals to respond in a more agile fashion to the constantly demanding verticals and network service requirements. All these requirements are part of the transformation towards the Fifth Generation Networks (5G) and beyond.
Taleb, T. (2018). Second Edition of the IEEE JSAC Series on Network Softwarization Enablers. IEEE Journal on Selected Areas in Communications, 36(10), 2155-2157. . https://doi.org/10.1109/JSAC.2018.2869998