Energetic performance of service-oriented multi-radio networks: issues and perspectives
WOSP '07 Proceedings of the 6th international workshop on Software and performance
A reliable communications architecture for real-time IP mobile applications
International Journal of Mobile Communications
Architecting Service Oriented Middleware for pervasive networking
PESOS '09 Proceedings of the 2009 ICSE Workshop on Principles of Engineering Service Oriented Systems
A cross-layer signaling and middleware platform for multi-interface mobile devices
EUC'07 Proceedings of the 2007 conference on Emerging direction in embedded and ubiquitous computing
Design and emulation of integration framework for heterogeneous wireless PAN networks
UCS'06 Proceedings of the Third international conference on Ubiquitous Computing Systems
panOULU: triple helix driven municipal wireless network providing open and free internet access
Proceedings of the 5th International Conference on Communities and Technologies
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The trends of network convergence and mobile accessibility in the Internet are bringing new challenges to the connectivity management of end hosts. Concerning network convergence, the configuration of heterogeneous access networks should be taken into consideration. As for mobile accessibility, seamless handoff between diverse access points is a challenging issue. This article presents the design and implementation of connectivity management middleware (CMM), a channel-based architecture for context-aware connectivity management. This architecture can both provide network awareness to applications and manage network resources in an adaptive fashion. In the case of network awareness, the platform provides interfaces for applications to query network QoS and availability status, as well as subscribe connection events. As for adaptive resource management, channel-based transport services for seamless access switching and disconnection treatment are provided based on a policy mechanism. A prototype is implemented with which experiments were performed in a GPRS-WLAN integrated environment in order to demonstrate the operational correctness of the architecture. Performance metrics are measured and analyzed.