Highlevel Service Handover through a Contextual Framework

This paper presents an architecture for context driven handovers between highlevel (non-carrier) services. One of our key assumptions is that any change in context can cause a handover, and we discuss the several requirements to our architecture deriving from this assumption. We introduce a contextual extension to a general service model, which is the basis for our contextual framework. To demonstrate its applicability, our architecture is applied to a web service middleware exemplarily.

[1]  J. Kammann,et al.  Split-proxy concept for application layer handover in mobile communication systems , 2002, 4th International Workshop on Mobile and Wireless Communications Network.

[2]  Emad Qaddoura,et al.  AAA Interface for IPv6 Handoff , 2000 .

[3]  Thomas Strang,et al.  Service Interoperability on Context Level in Ubiquitous Computing Environments , 2003 .

[4]  Michael Uschold,et al.  Ontologies: principles, methods and applications , 1996, The Knowledge Engineering Review.

[5]  Jukka Manner,et al.  Mobility Related Terminology , 2004, RFC.

[6]  Peter Schoo,et al.  Accounting management in heterogenous mobile access networks: the MIND approach , 2002, The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[7]  Mahadev Satyanarayanan,et al.  Pervasive computing: vision and challenges , 2001, IEEE Wirel. Commun..

[8]  Holger Schmidt,et al.  The MNM service model — Refined views on generic service management , 2001, Journal of Communications and Networks.

[9]  Thomas Strang.  Towards Autonomous Context-Aware Services for Smart Mobile Devices , 2002 .

[10]  Rajeev Koodli,et al.  Fast Handovers for Mobile IPv6 , 2001, RFC.

[11]  James A. Hendler,et al.  The Semantic Web" in Scientific American , 2001 .

[12]  Miguel Toro Bonilla,et al.  a framework for aspect–oriented multiparty coordination , 2002 .

[13]  Dieter Fensel,et al.  Ontobroker: Ontology Based Access to Distributed and Semi-Structured Information , 1999, DS-8.

[14]  Generator Ground Protection.  An American National Standard , 1985 .

[15]  Michael Samulowitz,et al.  CAPEUS: An Architecture for Context-Aware Selection and Execution of Services , 2001, DAIS.