基于IPv6的车载网络移动切换研究

摘要

提出了一种基于IPv6的车载网络移动切换方案MHRD.MHRD提出了基于路域的车载网体系结构,与现有的车载网体系结构相比,路面移动节点的移动切换次数大幅度降低.MHRD中,路面移动节点通过其经过的一跳范围内的接入节点获取转交地址,无须进行重复地址检测即可确保转交地址的全球唯一性,降低了移动切换代价,缩短了移动切换延迟.从理论和仿真两个角度对MHRD的移动切换代价和移动切换延迟等性能参数进行了分析比较,分析结果表明MHRD的移动切换代价更小,数据包丢失率更低,移动切换延迟更短.%This paper proposed a mobility handover scheme MHRD for IPv6-based vehicular Ad hoc networks( VANET). MHRD proposed the road-domain architecture for VANET. Compared with the existing architectures for VANET, it greatly reduced the mobility handover frequency of an onboard unit (OBU). In MHRD, an OBU acquired its care-of address from the access point within one-hop scope and the care-of address could be ensured to be unique without the duplicate address detection address, so it reduced the mobility handover cost and shortened the delay. From the analytical and simulative perspectives, analyzed and compared the performance parameters of HMRD, such as the mobility handover delay and the mobility handover delay, and the data results show that the performance of HMRD is better.