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Mobility management for multihomed mobile networks using backup registration

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3 Author(s)
Lu Li-Hua ; Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing ; Liu Yuan-an ; Wang Qiu-Tian

Owing to inherited shortcomings such as poor survivability and limited resource in network mobility basic support protocol, multihoming mechanism is introduced to network mobility management to improve robustness, aggregate Bandwidth, provide reliability and achieve ubiquitous access. In this paper a mobility management solution is proposed for multihomed mobile networks based on backup registration. By extending binding unique identifier sub-option with backup flag, mobile router can register its backup care-of address on its home agent to create backup entry which can be used not only to transmit packets after MRpsilas current link can not work well but also to share load as normal registration. Then packets can be delivered through multiple paths, even if MRpsilas link is broken, packets can get to destination through backup care-of address. Handover can be implemented before entire mobile network totally disconnects from current visiting network, so no communication interruption will be caused during handover. By adopting the idea of getting information before connecting, mobile router can choose proper router as its new access point to achieve route optimization.

Published in:

Internet Multimedia Services Architecture and Applications, 2008. IMSAA 2008. 2nd International Conference on

Date of Conference:

10-12 Dec. 2008