Multi-level rule-based handover framework for heterogeneous wireless networks

An appropriate vertical handover process is the essential requirement for seamless mobility in heterogeneous wireless networks. The role of the handover process is to select the best target network. Several factors such as number of decision parameters and their relationships affect the handover decision. Little attention has been given to the understandability and modifiability of the decision model used, which leads to the difficulty to modify the model if need be. In this paper we have proposed a new multi-level rule-based approach for vertical handover. The proposed work is simulated and results analysed. The performance, in terms of network selection ability, is compared with two well-known techniques.