Service deployment aspects in the systems with network function virtualization

To ensure the required quality of experience and optimal use of network operator's resources in the current conditions telecommunication operator can deploy services using the concept of Network Functions Virtualization (NFV), that has fundamental differences from traditional dedicated hardware. To achieve the expected benefits of NFV, physical resources must be used effectively. This requires effective algorithms to determine onto which physical resources network functions are allocated and how the service is processed. Analysis of all known publications devoted to virtualization of network functions of mobile network has shown the modeling approach to resource allocation and also has shown the absence of decisions on important issues of this process (performance of functional blocks, heterogeneous environment). An approach to model and investigate the resource allocation of network functions on a telecommunication operator's network is proposed.