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HMIPv6(Hierarchical Mobile IPv6) adopts hierarchical architecture to manage the communication between mobile node(MN) and correspondent node(CN) by introducing a mobility anchor point(MAP) so that it may greatly reduce signaling cost during MN movement. However, it also brings about some new problems, one of which is the issue of the route. When a MN moves to some special location, there maybe exists...
In this paper the optimized handover mechanisms including the dual-interfaces hard handover and network-layer soft-handover are proposed to improve the handover performance when adopting the hierarchical mobile IPv6 (HMIPv6) protocol. A HMIPv6 test-bed based on Linux is set up and a series of experimental studies on network-layer handover are performed. From the test results we can see that the soft-handoff...
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