Enhancing the performance of secured handover protocols in UMTS-WiMAX interworking |
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Authors: | Ali Al Shidhani Victor C M Leung |
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Affiliation: | (1) Department of Electrical and Computer Engineering, The University of British Columbia, 2332 Main Mall, Vancouver, BC, V6T 1Z4, Canada |
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Abstract: | Interworking UMTS and WiMAX networks offers global roaming and cost effective broadband wireless Internet access. Designing
efficient Intra and Inter WiMAX handovers in the interworking architecture is a challenging problem. Handovers must be instantaneous
and secure at the same time. We attempt to solve this problem by designing Intra and Inter WiMAX handover protocols which
are capable of operating in the UMTS-WiMAX interworking architecture and perform mutual pre-authentication between the mobile
station and the target network prior to handover. Due to the pre-authentication procedure, our proposed handover protocols
outperform standard handover protocols by dispatching fewer handover signaling messages, experiencing less handover delay
and preserving computation resources of critical nodes in the interworking architecture. Furthermore, our proposed handover
protocols meet essential security requirements and defend against common attacks affecting handover protocols. |
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