面向停泊车辆的VANET高效数据分发方案

针对VANET车辆节点的高移动性、间歇连通性等独特性质,提出了一种面向停泊车辆的VANET高效数据分发方案,利用路边停泊车辆缓冲并执行数据分发。同时还提出了一种便于分发数据报文至路边停泊车辆的路由方案,并将发布/订阅方案引入到最后阶段的数据分发。理论分析和仿真比较结果表明面向停泊车辆的数据分发方案的优越性,即该方案能以较低网络开销和合理延迟实现更高数据传送率。

A Efficient Data Dissemination Scheme for the Roadside Parked Vehicles in VANETs

For vehicle nodes are characterized by high mobility, intermittent connectivity, and so on in VANET, this paper proposes a efficient data dissemination scheme for parked vehicles, Exploiting the roadside parked vehicles to buffer and perform data dissemination. And also a routing scheme to distribute each data message to roadside parked vehicles is offered, and introduce the pub/sub scheme into the last stage of data dissemination. The theoretical analysis and the simulation results show that the superiority of the data dissemination scheme for parked vehicles, namely, this scheme achieves a higher data delivery ratio at lower network traffic overhead and reasonable delay.