快速层次移动IPv6切换性能分析及优化

Performance Analysis and Optimization of Fast Handover in Hierarchical Mobile IPv6 Networks

移动IPv6技术中切换延时对实时应用影响很大。介绍了目前移动IPv6常用的快速移动和层次移动切换技术,描述其切换原理和过程。结合2种技术的优缺点,给出了一种新的快速层次移动IPv6的切换方案。利用NS-2对这3种切换方法进行仿真得到的结果表明,快速层次移动IPv6切换延时要小于快速移动IPv6和层次移动IPv6的切换延时,且降低了数据包丢失率,提高了网络的性能。

In Mobile IPv6, handover delay has a great influence on real-time application. This paper analyzes the Fast and Hierarchical handover methods commonly used at present in Mobile IPv6, and describes a new handover method of Fast handover in Hierarchical Mobile IPv6 based on the advantages and disadvantages of the above two methods. Simulation results of the three methods in NS-2 indicates that the new method has shorter handover delay than Fast Mobile IPv6 and Hierarchical Mobile IPv6, reduces the data packet loss rate, and improves the performance of Mobile IPv6 network.