1-5 July 2007; Patrick Mandic, Vicente Olmedo, Juan E. Burgos, Antonio Cuevas, Jürgen Jähnert, Jose I. Moreno, Victor A. Villagra, Stefan Wesner

Abstract:
As the line that separates the old circuit switched based telephony, the IP-packet switched based Internet and mobility -by the hand of the success of the 2G of cellular phonesblurs more and more, the existent value chains are experiencing a deep recombination due to the clash of the different interests. From the resultant technological melee, the Session Initiation Protocol grows in momentum and seems to establish itself in the telecom-related arena. Parallel to this development, in the traditional IT sector the notion of Virtual Organizations (VOs) enabling collaborative business across organizational has been evolving implementing a Service Oriented Architecture (SOA). Within the EU funded Akogrimo project, the VO concept has been extended towards Mobile Dynamic Virtual Organization (MDVO) considering additionally the requirements of mobile users and resources. The scenarios for MDVO show a clear need for integration of Web Services with Multimedia Applications together with a wide range of service types. A Service Discovery (SD) mechanism that makes the integration of heterogeneous services possible, supporting at the same time the concept of VO and mobility is presented in this article. This is not only designed with a pervasive use of services in mind, but it also envisages a "pervasive" rendering of services from the mobile user side.

Keywords:
Mobile Dynamic Virtual Organization, Service Discovery, Virtual Organization, Session Initiation Protocol

References:
[1] M. Handley, H. Schulzrinne, "SIP: Session Initiation Protocol", RFC3261, IETF, Mar. 1999.
[2] N. Deason: Internet-Draft. "SIP and SOAP", draft-deason-sip-soap-00, June 2000
[3] G. Camarillo and M.A. Garcia Martin, The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Hoboken, NJ: Wiley 2004.
[4] Stefan Wesner, "Towards a Mobile Grid Architecture, Journal of IT Information Technology, 2005, Vol. 6 , pages 130-138
[5] E. Guttman, C. Perkins, et al., "Service Location Protocol, Version 2", RFC 2608, IETF, June 1999.
[6] L. Clement, A. Hately, et al., "UDDI Version 3 Spec" OASIS Draft, Oct 2004
[7] A. B. Roach, "Session Initiation Protocol (SIP) - Specific Event Notification", RFC 3265, IETF, Jun. 2002
[8] A. Niemi, "Session Initiation Protocol (SIP) Extension for Event State Publication", RFC 2903, IETF, Oct. 2004
[9] J. Clark, S. DeRose, "XML Path Language (XPath) Version 1.0", W3c Recommendation, Nov. 1999.
[10] Stefan Wesner, M. A. Toro Escudero, Jurgen Jahnert, Akogrimo Overview, http://www.mobilegrids.org
[11] Jurgen Jahnert, Victor Villagra, Stefan Wesner (Eds.), "The Akogrimo Mobile Grid Reference Architecture", Akogrimo Whitepaper, http://www.mobilegrids.org
[12] A. Cuevas et al., "The IMS Service Platform, the Key for Next-Generation Network Operators to Be More than Bit Pipes", IEEE Comm. Mag., vol. 44, no. 8, Aug. 2006
[13] Martin Gudgin, Marc Hadley, Noah Mendelsohn, Jean-Jacques Moreau, Henrik Frystyk Nielsen W3c Recommendation "SOAP Version 1.2 Part 1: Messaging Framework", 24 June 2003.

Source:
proceedings of IST Mobile & Wireless Communications Summit

URL:
restricted (foreign link)