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Discovering the Architecture of Geo-Located Web Services for Next Generation Mobile Networks
July 2006 (vol. 5 no. 7)
pp. 784-798
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.

[1] 3GPP, Functional Stage 2 Description of Location Services in UMTS, Technical Specifications TS 23.171 V3.9.0, ARIB23171_300.PDF, Sept. 2002.
[2] A.C. Bayomock Linwa and S. Pierre, “Discovering with QoS the Geo-Located Web Services over Next Generation of Mobile Networks,” Proc. IEEE Conf. Wireless and Mobile Computing, Networking and Comm., Aug. 2005.
[3] G. Ballintijn, A.S. Tanenbaum, and M.R. Van Steen, “Locating Ob-jects in a Wide-Area System,” PhD Thesis, Amsterdam Univ., Globe Project, , 2003.
[4] M. Barbeau and J. Govia, “Results of Comparing Bandwidth Usage and Latency: Service Location Protocol and Jini,” Proc. Workshop Ad Hoc Comm. Seventh European Conf. Computer Supported Cooperative Work, 2001/WAHCgovea.pdf, Sept. 2001.
[5] S. Bouchenak, D. Hagimont, S. Krakowiak, N. De Palma, and F. Boyer, “Experiences Implementing Efficient Java Thread Serialization, Mobility and Persistence,” INRIA Technical Report No. RR-4662, Dec. 2002.
[6] L. Choonhwa Lee and H. Sumi, “Protocols for Service Discovery in Dynamic and Mobile Networks,” Int'l J. Computer Research, vol. 11, no. 1, pp. 1-12, publicationsservicediscovery.pdf, 2002.
[7] X. Dongyan, K. Nahrstedt, and D. Wichadakul, “QoS-Aware Discovery of Wide-Area Distributed Services,” Proc. First IEEE/ACM Int'l Symp. Cluster Computing and the Grid, pp 92-99, May 2001.
[8] M.A. Dru and S. Saada, “Location Based Mobile Services: The Essentials,” Alcatel Telecomm. Rev., pp. 71-76, 2001.
[9] Ericsson, Mapping User Selected QoS to RSVP and DiffServ Attributes, , July 2001.
[10] N. Harashima, T. Okoshi, J. Nakazawa, Y. Tobe, and H. Tokuda, “AMRB: Toward Location Migration Transparency of Services,” Proc. IEEE Int'l Conf. Parallel and Distributed Systems, pp. 305-314, 2001.
[11] jUDDI, http://ws.apache.orgjUDDI/, 2004.
[12] S. Kapellaki, N. Tselikas, E. Chaniotakis, E. Koutsoloukas, G. Prezerakos, and I.S. Venieris, “The `Le' Interface: Performance Evaluation of 2-Tier and 3-Tier 3GPP Compliant Realizations,” Proc. IEEE Int'l Conf. Comm., pp. 1423-1427, May 2005.
[13] F. Michahelles, M. Samulowitz, and B. Schiele, “Detecting Context in Distributed Sensor Networks by Using Smart Context-Aware Packets,” Proc. Int'l Conf. Architecture of Computing Systems, , 2002.
[14] S. Panagiotakis and A. ALonistioti, “Intelligent Service Mediation, for Supporting Advanced Location and Mobility-Aware Service Provisioning in Reconfigurable Mobile Networks,” IEEE Wireless Comm., vol. 9, pp. 28-38, Oct. 2002.
[15] A.Y. Seydim, M.H. Dunham, and V. Kumar, “An Architecture for Location Dependent Query Processing,” Proc. 12th Int'l Conf. Database and Expert System Applications, pp. 549-555, 2001.
[16] UDDI, http://www.uddi.orgspecification.html, 2004.
[17], SFR Launch 3G,, June 2004.

Index Terms:
Geo-located services, GLWSA, GLWSM, next generation mobile networks, service discovery, Web services.
Andr? Claude Bayomock Linwa, Samuel Pierre, "Discovering the Architecture of Geo-Located Web Services for Next Generation Mobile Networks," IEEE Transactions on Mobile Computing, vol. 5, no. 7, pp. 784-798, July 2006, doi:10.1109/TMC.2006.95
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