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As many geo-located Web services will be deployed in the future, 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 utilization rates. This paper presents a middleware system called GLWSA (Geo-Located Web Services Architecture) that aims to satisfy these requirements in addition to providing a thematic factorization of common location functions in order to locate mobile clients. The 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 (from a specific client) to the nearest SAS based on the client's location. This architecture is suitable to assist mobile clients to discover the geo-located Web services and to maintain the service execution closest to their location.
Geo-located services, GLWSA, GLWSM, next generation mobile networks, service discovery, Web services.

A. C. Bayomock Linwa and S. Pierre, "Discovering the Architecture of Geo-Located Web Services for Next Generation Mobile Networks," in IEEE Transactions on Mobile Computing, vol. 5, no. , pp. 784-798, 2006.
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