A location-aware secure interworking architecture between 3GPP and WLAN systems
ICISC'04 Proceedings of the 7th international conference on Information Security and Cryptology
An IP-based QoS architecture for 4G operator scenarios
IEEE Wireless Communications
Interworking techniques and architectures for WLAN/3G integration toward 4G mobile data networks
IEEE Wireless Communications
IEEE 802.11 roaming and authentication in wireless LAN/cellular mobile networks
IEEE Wireless Communications
Applications of agent technology in communications: a review
Computer Communications
Vertical handover supporting pervasive computing in future wireless networks
Computer Communications
QoS-aware middleware for ubiquitous and heterogeneous environments
IEEE Communications Magazine
Security aspects of 3G-WLAN interworking
IEEE Communications Magazine
Challenges in the migration to 4G mobile systems
IEEE Communications Magazine
Location-Aware multi-agent based intelligent services in home networks
ISMIS'06 Proceedings of the 16th international conference on Foundations of Intelligent Systems
A security management framework with roaming coordinator for pervasive services
ATC'06 Proceedings of the Third international conference on Autonomic and Trusted Computing
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In the 4G mobile networks which are expected to be very complex systems interconnecting various technologies, new intelligent services will need to be aware of various contexts. In this paper, we present the context management framework that exploits the agent technology in mobile communications and services. We focus mainly on the seamless secure handover which uses context information regarding location privacy, security, network environment, and QoS priority. We designed QoS Broker that can perform the autonomous decision making for context-aware handover without the direct intervention of users. To minimize the signaling overhead, we present an efficient context transfer mechanism among the Brokers. We also designed the context model for the seamless vertical handovers so that the Brokers could ensure the right context is available in the right place at right time. We developed the testbed and analyzed the performance of QoS-aware secure roaming with context transfer. Analytical results show that our context-aware vertical handover provides better performance and security with lower latency.