IMS Vertical Handover Optimization Based on Network Resources

Transition to convergent systems built over the IMS architecture should attempt to service availability and mobility requirements in heterogeneous technologies. Mobility solution on IMS should allow operators delivering network resources related to handoff policies beyond triggering only by power strength as done so far. This paper reviews emerging heterogeneous access networks and their integration, discussing relevant metrics to mobility which indicates resource availability in a way to support vertical handover decision in networks deployed over IMS. The selected architecture is under evaluation in a simulation environment. The results are used to build up an analysis of the solution and drown up some conclusions.