Analytical Modelling of Multi-tier Cellular Networks with Traffic Overflow

Abstract

In the paper, a new analytical model of multi-service communication networks with traffic overflow is elaborated. It is assumed that both: primary resources and alternative resources, forming networks with traffic overflow, are distributed, as, e.g. in mobile networks in which traffic from a group of 4G cells is overflowed to a group of 3G cells. The paper proposes also a new method for determining parameters of multi-service traffic that overflows from the distributed primary resources to the distributed alternative resources, as well as a method for occupancy distribution calculation and blocking probability calculation in the alternative resources servicing overflow traffic. The results of the analytical calculations are compared with the results of the simulation experiments of some selected structures of overflow systems with the distributed primary and alternative resources.