DOI: https://doi.org/10.15588/1607-3274-2019-2-1

METHOD FOR FORMING OF MULTISERVICE CORE MOBILE COMMUNICATION NETWORK SLICES

S. V. Sulima

Abstract


Context. With the growth in the volume of mobile data traffic and the number of services provided by the mobile network,
service load flows are also increasing, which necessitates changing the principles, models and methods of telecommunication flows
serving in order to ensure the given quality of providing a wide range of services in flexible and cost-effective way. Advantages of
scalability and elasticity with the support of a high rate of network technical resources utilization can be achieved using virtualization
technologies and the concept of network slicing, that allows deploying dedicated virtual networks based on services, using the
methods of network functions virtualization. In this context, the main question remains what number of network slices will be
feasible in terms of the cost of slice managing and providing the required functionality.
Objective. To improve the efficiency of mobile network through optimal slice forming in multiservice telecommunication
network.
Method. Analysis of the publications devoted to network functions virtualization has shown the organization approach of using
the multiservice mobile network resources, and also showed insufficient efficiency of existing solutions on important issues of this
process (the performance of the slices formation algorithm, the level of functional costs).
Results. A method to model network resource allocation system, which forms dedicated network slices that serve certain types of
services independently on the common infrastructure.
Conclusions. The article solves the problem of constructing a method for forming multiservice core mobile communication
network slices, which, due to the effective dynamic configuration of the system, allows providing a wide range of services with a
given quality indicators. A model of resource management system is constructed, which is used to present a method that takes into
account costs associated with excessive resource allocation, and also reduces the number of network configuration recalculations,
which allows achieving a rational ratio of management costs and Quality of Service

Keywords


Network Functions Virtualization, resource provisioning, network slicing, dedicated network, Evolved Packet Core

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