一种基于逆向路由重定向的无缝切换方法  

A seamless switching method based on reverse route redirection

作　　者：张建伟[1] 韩峰[1,2] 刘思[1] 李朝阳[1] 蔡增玉[1] 

机构地区：[1]郑州轻工业学院计算机与通信工程学院,河南郑州450002 [2]南阳理工学院科研处,河南南阳473000

出　　处：《中国科学技术大学学报》2011年第7期651-658,共8页JUSTC

基　　金：国家重点基础研究发展(973)计划(2007CB307102;2007CB307100);河南省基础与前沿研究项目(082300410280);郑州轻工业学院博士基金项目资助

摘　　要：基于标识分离映射网络环境下的移动性支持特点及需求,针对现有网络移动切换技术所存在的切换时延过大的问题,提出了基于逆向路由重定向的无缝切换方法.该方法由移动性检测、映射信息更新和流量偏转3个部分组成,相比FHMIPv6在时延上可以满足标识分离网络环境下对实时应用的要求,并且切换过程中移动节点参与很少,可节省大量系统无线接入资源.仿真实验表明,切换时延参数值与分析吻合,可满足各种实时应用需要.Based on the characteristics and requirements of mobility support under the network environment of identifier mapping separation,aiming at the problem of excessive handoff delay in the existing network mobile switching technologies,a seamless switching method based on reverse route redirection was proposed.The method consists of the mobility detection,mapping information update and flow deflection.Compared with FHMIPv6 on the delay,the method can meet the real-time application requirements in the identifier separation network environment.And in the switching process much less mobile nodes are involved,which can save large amounts of wireless access system resources.Simulation results show that the values of handoff delay parameters of this method are consistent with the analysis,thus meeting a variety of real-time application requirements.

关 键 词：逆向路由重定向 无缝切换 移动性检测 流量偏转 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]