The VERHO Mobility Management System for Heterogeneous Network Environments
In this paper, the authors present their solution for intelligent network interface selection and (vertical) handover control for heterogeneous multi-access environments. The 4th generation mobile communication system is seen here as a combination of several access technologies optimized for different purposes. A combination of these access technologies can constitute, with intelligent control, a 4G access with capabilities to support various application and user requirements and preferences. A policy based vertical handover controller system, called VERHO, utilizes input from several cross-layer sources, the Mobile IPv6 protocol and network interface selection to achieve both proactive and intelligent vertical handovers between a variety of access interfaces.