Abstract
In Hierarchical Mobile IPv6(HMIPv6),even though there is a shorter route between Correspondent Node(CN) and Mobile Node(MN),all the packets between them will still be forwarded by Mobility Anchor Point(MAP),which brings needless system's consumption and delay on packet transmission,and its binding update process of inter-region handover which conduct orderly has a certain delay on binding update.Therefore,an enhanced HMIPv6 was proposed,in which route optimized communication technology was applied when the number ratio of packet transmission to binding update reached a given threshold.Simultaneously,the binding update process of inter-domain handover was improved.A mathematical performance analysis proves that this enhanced HMIPv6 has advantages in reducing system's consumption,delay on packet transmission and binding update in contrast to HMIPv6.
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