The Research Of Handoff Sheme And Key Movement Handoff Technique In MIPv6

In recent years, the applications of remote office and mobile computing keep increasing. In wireless environment, The Mobile Host must perform handoff to keep the connections when it moves between different sub networks. The handoff has be the key factor of the wirless system and the studies on the Mobile IP handoff become one of the important researching fields of the computer wireless network.As an important technique of the next generational network, MIPv6 have low-latency,high- confidence,low-lossing.There are also some problems in MIPv6,in this paper . We discuss four aspect.At first, about the mordel, it present an advanced HMIPv6 mordel to surport the need of movement detection and Route Optimization.Secondly,this paper present a method of low-latency mobile IPv6 movement detection for wireless LANs after research on methods of mobile IPv6 movement detection. Without using L2 triggers,it employs boundary detection model to reduce the latency and the cost of handoff detection.Thirdly,this paper presents an advanced route optimization scheme to solve some route problem in HMIPv6 after research on route problem in HMIPv6, and reduce the loads on MAP,finally, a operational networks achived.Finally,this paper presents a new security mechanism called MDH-3 which provides the security protection during the process of binding update between mobile node and correspondent node with high security and low request for the bility of the mobile node.In this paper ,theses optimization scheme bond together into the optimization HMIPv6 scheme,it has advantages in latency of handoff,expense,confidence etc.