Service Location Protocol: Automatic Discovery of IP Network Services
IEEE Internet Computing
An Architecture for Location Dependent Query Processing
DEXA '01 Proceedings of the 12th International Workshop on Database and Expert Systems Applications
Detecting Context in Distributed Sensor Networks by Using Smart Context-Aware Packets
ARCS '02 Proceedings of the International Conference on Architecture of Computing Systems: Trends in Network and Pervasive Computing
QoS-Aware Discovery of Wide-Area Distributed Services
CCGRID '01 Proceedings of the 1st International Symposium on Cluster Computing and the Grid
AMRB: Toward Location and Migration Transparency of Services
ICPADS '01 Proceedings of the Eighth International Conference on Parallel and Distributed Systems
User-Centered Location Awareness
Computer
Context-Aware Service Discovery in Heterogeneous Networks
WOWMOM '05 Proceedings of the Sixth IEEE International Symposium on World of Wireless Mobile and Multimedia Networks
International Journal of Web and Grid Services
Classification of the state-of-the-art dynamic web services composition techniques
International Journal of Web and Grid Services
Using web services for presence-based application development
International Journal of Web and Grid Services
Multi-granularity context model for dynamic Web service composition
Journal of Network and Computer Applications
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As many geo-located web services will be deployed in the future, the mobile clients will be interested in locating a specific application server based on requirements such as proximity, service cost per location area, bandwidth and server utilisation rate. This paper presents a middleware system named GLWSA (Geo-Located Web Services Architecture) that aims at satisfying these requirements as well as a thematic factorisation of common location functions used to get position of mobile clients. A GLWSA supports a set of GLWSMs (Geo-Located Web Services Manager) distributed over the mobile network. It defines protocols to discover and inform a Supplier Application Server (SAS) to migrate the service execution (of a specific client) to the nearest SAS based on the client's location. This architecture is suitable to assist mobile clients in the discovering geo-located web services process and to maintain the service execution closest to their location context.