Control plane load balancing in wireless C/U split architectures

The goal of expected 5G networks is to bring ultra high data rates to mobile users. To realize this, a novel Control and User plane split (C/U) communication network paradigm that deploys a large number of small base stations within the coverage area of a macro cell has been considered. However, an emerging problem for such architecture is the increasing complexity in control network load balancing and hand over events. Such problems for control plane has received little attention and it is the focus of this paper. We propose an optimal solution to the mentioned problems and discuss the related performance via numerical investigations.