On the use of SHIM6 for mobility support in IMS networks

ABSTRACT

The future of network communications is moving towards deployment of an all-IP core network. This has given rise to many devices hitting the market equipped with multiple network interfaces. However, in order to really benefit from such a heterogeneous network environment, applications must experience minimum disruption as they roam from one network to another, which requires seamless mobility support. Although, some mobility proposals have emerged (Mobile IPv6, and its extensions), none of them give satisfactory performance in terms of handover between different networks. In addition, they require infrastructural changes to the network and give poor performance in case of a failure. In this paper, we propose a mechanism to support mobility through a multi homing SHIM6 layer. The results show that our proposed mechanism outperforms Route Optimized Mobile IPv6.

REFERENCES

• 1: Rajiv Chakravorty , Pablo Vidales , Kavitha Subramanian , Ian Pratt , Jon Crowcroft, Performance Issues with Vertical Handovers - Experiences from GPRS Cellular and WLAN Hot-spots Integration, Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04), p.155, March 14-17, 2004
• 2: S. Balasubramaniam, J. Indulska, "Vertical Handover supporting Pervasive Computing in Future Wireless Networks", Computer Communications, 27, 2004, pp. 708--719.
• 3: C. Prehofer, N. Nafisi, Q. Wei, "A framework for Context-Aware Handover Decision", Proceedings of PIMRC 2003, Beijing, China, September 2003.
• 4: F. Xu, L. Zhang, Z. Zhou, "Interworking of Wimax and 3GPP Networks based on IMS", IEEE Communications Magazine, March 2007.
• 5: E. Nordmark, M. Bagnulo, "Level 3 multi-homing shim protocol", Internet Draft (work in progress), IETF, October 2007. {Online}. Available: http://www.ietf.org/internetdraft/draft-ietf-shim6-proto-09.txt
• 6: B. Aboba, IAB Considerations for the Split of Identifiers and Locators, draft-iab-id-locsplit-00.txt (work in progress), IAB, March 2004.
• 7: S. M. Faccin, P. Lalwaney, B. Patil, "IP Multimedia Services: Analysis of Mobile IP and SIP Interactions in 3G Networks", IEEE Communications Magazine, January 2004.
• 8: R. Chakravorty, P. Vidales, L. Patanapongpibul, K. Subramaniam, I. Pratt, J. Crowcroft, "On Inter-network Handover Performance using Mobile IPv6", University of Cambridge Computer Laboratory Technical Report, May 2003.
• 9: UCL (Universite Catholique de Louvain shim6 implementation, February 2008, {Online}, Available: http://inl.info.ucl.ac.be/LinShim6
• 10: Mobile IPv6 for Linux {Online}, Available: http://www.mobile-ipv6.org/

INDEX TERMS

Keywords:
IMS, MIPv6, SHIM6, SIP, mobility