【摘要】 从以切换频率区分移动节点类别的角度,提出了一种新的可靠移动IP组播方案,目的是让不同类别的移动节点都能得到相应的、接近最佳的可靠组播服务。与现有的可靠移动IP组播协议相比,提出了基于移动节点的切换频率对移动节点进行分类的概念;提出了对不同类别的移动节点分别使用相应的可靠移动IP组播协议的思想;根据上述思想改进了RRBMoM协议,得到了新协议——ARRBMoM协议。在此基础上,利用OPNET分别模拟ARRBMoM和RRBMoM协议的运行情况,对其性能进行了分析和比较。仿真结果表明了ARRBMoM协议在多种速度类别的移动节点同时存在时,以及移动节点运动速度较快时,比RRBMoM协议在组播树重构、端到端延时、重传率、丢失率等方面具有更好的性能。更多还原

【Abstract】 This paper proposed a new scheme of reliable mobile IP multicast,which classified the mobile node based on handoff frequency.The scheme aimed to offer suitable and quasi-optimized service to every class of mobile node.Our contributions were:Introduced a concept of classifying mobile node based on handoff frequency;Proposed the approach of adopting different protocols for different class of mobile node;Based on the above,proposed a new ARRBMoM protocol.Used OPNET as the platform to simulate the protocols of ARRBMoM and RRBMoM.The simulation results accord with the math analysis,and show ARRBMoM outperform RRBMoM on re-construction,end-to-end delay, re-transmission and loss.更多还原