基于HELLO包链路质量感知的多跳路由

发布时间：2018-12-16 19:49

【摘要】：由于车联网(vehicle Ad hoc networks,VANETs)采用IEEE 802.11p协议,传输距离短,常引用多跳路由。为此,提出基于HELLO包的链路质量感知的多跳路由(HELLO packet-link quality aware based multi-hop routing,HPLQAMH)协议。引用HELLO包建立一跳邻居集,减少控制开销;用隐晦确认机制构建具有双向通道的节点集,估计链路质量;通过链路质量和距离因子估计节点转发权重,依据节点权重设置消息转发时延,降低数据传输时延。仿真结果表明,HP-LQAMH协议在消息丢失率、吞吐量性能方面优于同类协议。
[Abstract]:Due to the short transmission distance of IEEE 802.11p protocol, (vehicle Ad hoc networks,VANETs often refers to multi-hop routing. Therefore, a link quality aware multihop routing (HELLO packet-link quality aware based multi-hop routing,HPLQAMH) protocol based on HELLO packet is proposed. HELLO packet is used to set up one-hop neighbor set to reduce control overhead, to construct node set with bidirectional channel by using obscure confirmation mechanism, and to estimate link quality. The weight of node forwarding is estimated by link quality and distance factor, and the delay of message forwarding is set according to the weight of node, so as to reduce the delay of data transmission. Simulation results show that the HP-LQAMH protocol is superior to the similar protocols in message loss rate and throughput performance.
【作者单位】：山西大学商务学院;
【基金】：国家自然科学基金项目(2014JK1160) 山西省科技厅软科学课题基金项目(2015041002-1)
【分类号】：TN929.5;U495

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