Virtualization promises to overcome the weaknesses of the current Internet and to act as a torch bearer technology for enabling innovative network architectures. However, a fundamental problem in instantiation of Virtual Networks (VNs) is an optimal allocation of resources offered by a physical IP network. In order to solve this NP-hard problem, heuristics have been proposed in literature. This...

An allocation of resources to a virtual machine specifies the maximum amount of each individual element of each resource type that will be utilized, as well as the aggregate amount of each resource of each type. An allocation is thus represented by two vectors, a maximum elementary allocation vector and an aggregate allocation vector. There are more general types of resource allocation problems...

6G wireless networks will require the flexibility to accommodate an extremely diverse set of service types. Accommodating different quality (QoS) requirements for these types necessitates use mixed numerologies, where services using subcarrier spacings or symbol durations coexist in same frequency band. Non-orthogonal multiple access (NOMA) techniques can potentially be used users with numerolo...