An intelligent handover management system for future generation wireless networks

Authors:
Meriem Kassar;Brigitte Kervella;Guy Pujolle
Affiliations:
Labortoire d'Informatique de Paris 6, University Pierre et Marie Curie, CNRS UMR, Paris, France;Labortoire d'Informatique de Paris 6, University Pierre et Marie Curie, CNRS UMR, Paris, France;Labortoire d'Informatique de Paris 6, University Pierre et Marie Curie, CNRS UMR, Paris, France
Venue:
EURASIP Journal on Wireless Communications and Networking - Intelligent Systems for Future Generation Wireless Networks
Year:
2008

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Abstract

Future generation wireless networks should provide to mobile users the best connectivity to services anywhere at anytime. The most challenging problem is the seamless intersystem/vertical mobility across heterogeneous wireless networks. In order to answer it, a vertical handover management system is needed. In our paper, we propose an intelligent solution answering user requirements and ensuring service continuity. We focus on a vertical handover decision strategy based on the context-awareness concept. The given strategy chooses the appropriate time and the most suitable access network among those available to perform a handover. It uses advanced decision algorithms (for more efficiency and intelligence) and it is governed by handover policies as decision rules (for more flexibility and optimization). To maintain a seamless service continuity, handover execution is based on mobile IP functionalities. We study our decision system in a case of a 3G/UMTS-WLAN scenario and we discuss all the handover decision issues in our solution.