A Vertical Handover Algorithm Based on Velocity Pre-decision and Fuzzy Logic for Heterogeneous Private Network

With the arrival of fifth-generation (5G) cellular networks, various industries have increasingly higher requirements for mobile Internet. The police mobile communication network is also seeking the interconnection between Police Digital Trunking (PDT) narrowband network and Broadband Trunking Communication (B-TrunC) network in China. In the future, the private mobile communication network will inevitably evolve towards the direction of large bandwidth and high rate to support more abundant mobile private network applications. Vertical handover technology is an essential key technology in hybrid networks composed of wide and narrow band networks. This paper proposes a vertical handover algorithm based on velocity pre-decision and fuzzy logic (VPD-FL). Firstly the velocity predecision algorithm can reduce the calculation of handover decisions, and then the fuzzy logic method is used to evaluate network performance indicators. Simulation and numerical results show that the VPD-FL algorithm has better network performance than the traditional vertical handover algorithm.