基于城市道路的稳定车载网分簇路由策略  

A Stable Clustering Routing Strategy Based on Urban Road for VANET

作　　者：卫鹏伟 何加铭[1,2] 曾兴斌[1] 

机构地区：[1]宁波大学通信技术研究所,浙江宁波315211 [2]浙江省移动网应用技术重点实验室,浙江宁波315211

出　　处：《移动通信》2014年第24期36-41,共6页Mobile Communications

基　　金：浙江省移动网络应用技术联合重点实验室(2010E10005);浙江省重中之重学科开放基金项目(xkxl1305);浙江省移动互联网用户端软件科技创新团队(2010R50009);浙江省重点科技创新团队项目(2012R10009-11;2012R10009-20)

摘　　要：由于车载自组网具有节点高速运动、网络拓扑变化快、链路有效时间短等特点,使得传统移动自组网分簇路由协议在车载网中不再适用。基于此,提出了一种新的稳定的分簇路由策略,引入辅簇头的设计理念,并设计了一种高效的岔路口路由策略,通过岔路口二次选择,有效解决岔路口路由冗余问题。通过NS2模拟仿真表明,新的路由策略可有效避免簇结构变化导致的丢包率上升问题,能够以更少的跳数、更低的延时成功传递数据包,具有较好的性能。As vehicle Ad Hoc network（VANET） has the features such as node high-speed movement, fast network topology change and short link duration, traditional clustering routing protocols for Ad Hoc network are not suitable for VANET. Therefore, a stable clustering routing strategy is proposed in this paper. In the strategy, auxiliary cluster head is introduced and an efficient fork road routing strategy is designed in which reselection for fork road is adopted to effectively relieve routing redundancy. Simulation results on NS2 show that the proposed strategy can effectively reduce PLR due to the change of cluster structure, as well as transfer data packets with less hops and lower delay.

关 键 词：车载自组网 分簇 辅簇头 岔路口 二次选择 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]