Research On Mobile IP Handoff Performance

The traditional Internet because of the restrictions on space and time, it can't satisfy with more and more mobile users' requirements, so a new technology——mobile IP technology emerges as the times require. For mobile users maintain the existing communication links in the ever-changing circumstances.The mobile IP handoff is a key issue of mobile IP technology, the pros and cons of handoff performance directly related to communication quality is good or bad, Mobile IP handoff technology research is a hot research, the ability to provide an efficient and low packet loss rate, low handoff latency algorithm is the urgent need to resolve the issue.As to mobile IP handoff performance issues,this paper presents a mobile IP handoff parameter detection model,simulates the model,and analyzes Mobile IP handoff performance through simulation. From the point of optimizing link layer handoff to decrease mobile IP handoff latency,we present a improving scheme of mobile IP in wireless LAN.The main contents of this paper are as following:(1) Study the basic mechanism of mobile IP,deep study and summarize the present mobile IP handoff technology,analyze the various factors of impacting mobile IP handoff performance.(2) Present a mobile handoff parameter detection model,analyze the case of handoff latency,packet loss and packet disorder. Track TCP packet to analyze mobile IP handoff process and mobile IP handoff performance under moving.(3) When the mobile nodes occur handoff from one subnet to another subnet,will be to link layer handoff and network layer handoff. From the network layer handoff point of view,more or less to change the present mobile IP standard. Therefore,we present a improving scheme of mobile IP in wireless LAN from the point of optimizing link layer handoff. The scheme reduces mobile IP handoff latency better, advances mobile IP handoff performance.