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ABSTRACT

There are various emergency services based on wireless sensor network being proposed recently. However, the ability of these services/networks is inherently limited by geographical restrictions and need to be deployed in advance. This paper proposes an application level approach to enhance the service coverage and availability of emergency services. Specifically, we augment these services with All-IP network infrastructure based on IP Multimedia Subsystem (IMS). Furthermore, we integrate the IMS Emergency Services architecture with Cooperative Network technology to provide ubiquitous emergency services. We also investigate the prime problems of cooperation between heterogeneous networks and IMS. Finally, we present and discuss the experimental results of performance in our Cooperative Emergency IMS Testbed.

REFERENCES

• 1: 3GPP TS 23.167, IP Multimedia Subsystem (IMS) emergency sessions.
• 2: 3GPP TR 23.867, Internet Protocol (IP) based IP Multimedia Subsystem (IMS) emergency sessions.
• 3: M. El Barachi et al., A Presence-based Architecture for the Integration of the Sensing Capabilities of Wireless Sensor Networks in the IP Multimedia Subsystem, in Proc. of the IEEE Wireless Communications and Networking Conference 2008 (WCNC' 08), Mar. 31 -- Apr 3, 2008, Las Vegas, Nevada, USA.
• 4: A. Wood et al., Alarm-Net: Wireless Sensor Networks for Assisted-Living and Residential Monitoring, Technical Report CS-2006-13, Department of Computer Science, University of Virginia, 2006.
• 5: D. Malan, T. Fulford-Jones, M. Welsh, and S. Moulton, Codeblue: an ad-hoc sensor network infrastructure for emergency medical care, in Proc. of the 1st International Workshop on Wearable and Implantable Body Sensor Networks (BSN '04), London UK, Apr 2004.
• 6: F. Albiero, F. H. P. Fitzek, and M. Katz, Cooperative Power Saving Strategies in Wireless Networks: an Agent-based Model, in Proc. of the 4th International Symposium on Wireless Communication Systems (ISWCS 2007), Oct 17--19, 2007.
• 7: C. Politis et al., Cooperative Networks for the Future Wireless World, IEEE Comm. Mag., vol. 42, pp. 70--79, Sep 2004.
• 8: F. H. P. Fitzek and M. D. Katz, Cooperation in Wireless Networks: Principles and Applications, Springer, 2006.
• 9: C. Sun and K. B. Letaief, User Cooperation in Heterogeneous Cognitive Radio Networks with Interference Reduction, in Proc. of the IEEE International Conference on Communications 2008 (ICC '08), May 19--23, 2008, Beijing, China.
• 10: Fokus Fraunhofer Open Source IMS Playground, http://www.fokus.fraunhofer.de/ims.

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design

General Terms:
Design, Experimentation, Measurement, Performance

Keywords:
IP multimedia subsystems, cooperative networks, emergency service