【摘要】：由于車聯(lián)網(wǎng)(vehicle Ad hoc networks,VANETs)采用IEEE 802.11p協(xié)議,傳輸距離短,常引用多跳路由。為此,提出基于HELLO包的鏈路質(zhì)量感知的多跳路由(HELLO packet-link quality aware based multi-hop routing,HPLQAMH)協(xié)議。引用HELLO包建立一跳鄰居集,減少控制開銷;用隱晦確認(rèn)機(jī)制構(gòu)建具有雙向通道的節(jié)點(diǎn)集,估計(jì)鏈路質(zhì)量;通過鏈路質(zhì)量和距離因子估計(jì)節(jié)點(diǎn)轉(zhuǎn)發(fā)權(quán)重,依據(jù)節(jié)點(diǎn)權(quán)重設(shè)置消息轉(zhuǎn)發(fā)時(shí)延,降低數(shù)據(jù)傳輸時(shí)延。仿真結(jié)果表明,HP-LQAMH協(xié)議在消息丟失率、吞吐量性能方面優(yōu)于同類協(xié)議。
[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.
【作者單位】： 山西大學(xué)商務(wù)學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(2014JK1160) 山西省科技廳軟科學(xué)課題基金項(xiàng)目(2015041002-1)
【分類號】：TN929.5;U495

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