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提出一种HMIPv6的改进协议PA-HMIPv6.PA-HMIPv6提供接入路由预选择机制,并在接入路由器和移动锚点引入转交地址池.接入路由器利用多重连接特性预先获取切换信息,提前为移动节点进行转交地址配置和重复地址检测操作,在移动节点切换之前完成地址池的初始化和信息更新工作,力求最大程度地减少切换时延.仿真实验表明,PA-HMIPv6协议能够有效缩短切换时延,减少切换过程中的数据包丢失率.
An improved protocol of HMIPv6 PA-HMIPv6.PA-HMIPv6 is proposed to provide access route pre-selection mechanism and to introduce the care-of address pool in access routers and mobile anchors.The access router uses the multiple connectivity features to obtain the handover information in advance The mobile node performs the care-of address configuration and the repeated address detection operation, and completes the address pool initialization and information updating before the mobile node switches, and strives to minimize the handover delay. Simulation results show that the PA-HMIPv6 protocol can effectively shorten the handover delay , To reduce the packet loss rate during handover.