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The fifth generation of mobile networks (5G) brings an evolution of network service provisioning through a new communication paradigm, which enables the development of new applications and improves users’ experience. With 5G, it is envisioned that networks will provide services accessed by a variety of mobile users, some of such services requiring ultra-low latency and very high reliability. 5G also enables massive connectivity of sensors and actuators in the Internet of Things and Cyber-physical Systems scenarios, standing for massive Machine-Type Communication applications. Network Function Virtualization (NFV) is an emerging and promising solution to deal with such demands for flexible and agile service provisioning by replacing dedicated hardware implementations with software instances based on virtualization. A well-known challenge in NFV is the resource allocation problem. In particular, the …