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Sun J, Riekki J, Jurmu M & Sauvola J (2005)
Adaptive connectivity management middleware for heterogeneous wireless networks.
IEEE Wireless Communications 12(6):18-25.
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, channelbased
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.
Full paper (PDF)