Providing location information in a ubiquitous computing environment (panel session)
SOSP '93 Proceedings of the fourteenth ACM symposium on Operating systems principles
A system architecture for context-aware mobile computing
A system architecture for context-aware mobile computing
An active service framework and its application to real-time multimedia transcoding
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Vertical handoffs in wireless overlay networks
Mobile Networks and Applications - Special issue: mobile networking in the Internet
Design, implementation, and evaluation of programmable handoff in mobile networks
Mobile Networks and Applications - Special issue on Mobile Multimedia Communications (MOMUC '99)
PromethOS: A Dynamically Extensible Router Architecture Supporting Explicit Routing
IWAN '02 Proceedings of the IFIP-TC6 4th International Working Conference on Active Networks
A Service Deployment Architecture for Heterogenous Active Networks Nodes
SMARTNET '02 Proceedings of the IFIP TC6 WG6.7 Seventh International Conference on Intelligence in Networks: Smart Networks
Policy-Enabled Handoffs Across Heterogeneous Wireless Networks
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
People, places, things: Web presence for the real world
WMCSA '00 Proceedings of the Third IEEE Workshop on Mobile Computing Systems and Applications (WMCSA'00)
The Genesis Kernel: a programming system for spawning network architectures
IEEE Journal on Selected Areas in Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking - Active networks
An overview of vertical handover decision strategies in heterogeneous wireless networks
Computer Communications
Context-aware systems: A literature review and classification
Expert Systems with Applications: An International Journal
A novel SIP based procedure for congestion aware handover in heterogeneous networks
Computer Communications
A novel AHP and GRA based handover decision mechanism in heterogeneous wireless networks
ICICA'10 Proceedings of the First international conference on Information computing and applications
Autonomic management for personalized handover decisions in heterogeneous wireless networks
AIMS'11 Proceedings of the 5th international conference on Autonomous infrastructure, management, and security: managing the dynamics of networks and services
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Context-aware computing can play a major role to improve the services of mobile networking systems. In this paper, we focus on optimizing handover decisions in heterogeneous environments, where the user has a choice among different mobile networks and access points. In our approach, the decision is not only based on the signal quality, but also on the knowledge about the context of mobile devices and networks. Since context information and context processing evolves fast, we propose a flexible, integrated approach for context management, which can adapt in several ways. Our architecture encompasses programmable platforms and distributed context management components in network nodes and mobile devices, as well as a service deployment scheme for network services. This flexible architecture is able to actively deploy different handover services. It manages dynamic context information and allows mobile devices to be always connected to the most suitable access network. Our architecture is validated in a prototype implementation and performance results are discussed.