摘要
为了缓解LEO卫星IP网络的注册和绑定更新频率并降低切换延时,提出了基于虚拟移动路由器(VMR)的切换管理方案.当发生切换时,与用户段网络的移动路由器关联的VMR根据损耗函数决定是否转移以及向用户段的家乡代理发送注册和绑定更新消息.文中描述了VMR的数据结构、操作流程和损耗函数模型,并进行了仿真试验.试验结果表明,该方案实现了切换与注册与绑定更新过程的分离,可以应用在LEO卫星IP网络中.
In order to reduce the registration frequency and the handoff latency in LEO satellite IP networks, a VMR-based handoff management scheme was presented. When the handoff happens, the VMR associated with user segment network＇ s MR decided whether to transfer itself and register with the MR＇ s home agent by the cost function. The VMR＇ s data structure, the handoff operation procedure and the cost function model were presented, and the proposed method＇ s numerical simulation was carried on. The simulation result indicates that the proposed scheme can realize the isolation between the handoff and the registration procedure and be used in the lEO satellite IP networks.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2007年第1期161-164,共4页
Acta Electronica Sinica
基金
国家自然科学基金(No.60372039)
国防预研项目(No.41329080101)
