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IEEE 802.21 Information Services deployment for heterogeneous mobile environments

IEEE 802.21 Information Services deployment for heterogeneous mobile environments

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In the future mobile Internet, a key challenge is how the content is delivered to the mobile user, especially when there are multiple networks belonging to distinct operators. Knowing the network services and conditions available at each one becomes crucial. In order to store information from several networks and operators, the new IEEE 802.21 standard specifies a Media Independent Information Service (MIIS) supporting various information elements (IEs) that provide network information within a geographical area, with the aim of optimising the handover process. Since next-generation wireless devices are expected to support multiple radio access networks, users will be able to maintain connections when switching from one network to another. This article addresses a general approach towards the deployment of a Hierarchical 802.21 Information Service management infrastructure in a heterogeneous mobile environment. Through an NS-2-based simulation, it is shown that the proposed scheme improves the user experience in terms of MIIS server access time and number of optimal handovers in a random mobility scenario.

References

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      • IEEE 802.21 Standard: ‘Local and metropolitan area networks – Part 21: media independent handover services’, January 2009.
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      • Floroiu, J., Corici, M., Lee, B-J., Lee, S., Arbanowski, S., Magedanz, T.: `A vertical handover architecture for end-to-end service optimization', 16thIST Mobile and Wireless Communications Summit, July 2007.
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      • Yoo, S.-J., Cypher, D., Golmie, N.: `Timely effective handover mechanism in heterogeneous wireless networks', Proc. Springer Wireless Personal Communications, 2008.
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      • Christakos, C., Izquierdo, A., Rouil, R., Golmie, N.: `Using the media independent information service to support mobile authentication in fast mobile IPv6', Wireless Communications and Networking Conf., WCNC, March 2009.
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      • Melia, T., Corujo, D., de la Oliva, A., Vidal, A., Aguiar, R., Soto, I.: `Impact of heterogeneous network controlled handovers on multi-mode mobile device design', Wireless Communications and Networking Conf., 2007, WCNC 2007, March 2007.
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      • G. Bajko . Locating IEEE 802.21 mobility servers using DNS.
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      • G. Bajko , S. Das . Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) options for Mobility Server (MoS) discovery.
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