【摘要】：車聯(lián)網(wǎng)的交通安全消息對減少交通事故、緩解交通擁堵有很重要的作用,但是車輛的快速移動、網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)頻繁變化和網(wǎng)絡(luò)廣播風(fēng)暴極易導(dǎo)致交通安全消息傳輸失敗。本文考慮使用在城市道路兩邊設(shè)置固定的路邊單元RSU轉(zhuǎn)發(fā)交通安全消息,提出了一種基于路邊單元RSU的交通安全消息廣播協(xié)議RABP。RABP協(xié)議的核心思想是結(jié)合V2V通信和V2R通信來高效快速傳遞交通安全消息。RABP協(xié)議分為兩個(gè)階段,即最優(yōu)RSU選擇階段和最優(yōu)RSU廣播階段。在第一階段中,利用基于聯(lián)盟博弈的方法找到最優(yōu)中繼車輛,直到發(fā)現(xiàn)車輛周邊存在RSU時(shí),然后采用基于多屬性決策的最優(yōu)RSU選擇算法找到最優(yōu)RSU,將車輛交通安全信息優(yōu)先傳遞給RSU;在第二階段中,利用基于RSU的智能廣播算法將交通安全消息廣播給覆蓋范圍內(nèi)的車輛,同時(shí)通過有線網(wǎng)絡(luò)將交通安全消息傳遞給周邊RSU。本文通過國際仿真通用平臺Exata和交通流仿真器VanetMobiSim來驗(yàn)證提出的RABP協(xié)議,并仿真模擬不同場景下的AODV協(xié)議、OLSR協(xié)議和RABP協(xié)議,對比分析三種協(xié)議的性能指標(biāo)。仿真結(jié)果表明,RABP協(xié)議在交通安全消息的數(shù)據(jù)包投遞率和傳輸平均時(shí)延性能上都有較大地提升,廣播風(fēng)暴也得到了較好的抑制。RABP協(xié)議可以很好地適用于城市道路的交通安全信息傳輸。
[Abstract]:The traffic safety information from the vehicle network plays an important role in reducing traffic accidents and alleviating traffic congestion. However, the rapid movement of vehicles, frequent changes in network topology and network broadcast storms can easily lead to traffic safety message transmission failure. This paper considers the use of a fixed roadside unit RSU on both sides of a city road to forward traffic safety messages. In this paper, a traffic safety message broadcasting protocol (RABP.RABP) based on roadside unit RSU is proposed. The core idea of RABP.RABP protocol is to combine V2V communication with V2R communication to transmit traffic safety message efficiently and quickly. The RABP protocol is divided into two stages. That is, the optimal RSU selection stage and the optimal RSU broadcast stage. In the first stage, the optimal relay vehicle is found by using the alliance game method until the existence of RSU around the vehicle is discovered, and then the optimal RSU selection algorithm based on multi-attribute decision making is used to find the optimal RSU,. Giving priority to vehicle traffic safety information to RSU; In the second stage, traffic safety messages are broadcast to vehicles in coverage area using intelligent broadcast algorithm based on RSU, and traffic safety messages are transmitted to surrounding RSU. via wired network. In this paper, the proposed RABP protocol is verified by international simulation platform Exata and traffic flow simulator VanetMobiSim, and the AODV protocol, OLSR protocol and RABP protocol under different scenarios are simulated, and the performance indexes of the three protocols are compared and analyzed. The simulation results show that the RABP protocol can greatly improve the packet delivery rate and the transmission average delay performance of traffic safety messages. Broadcast storms are also well suppressed. The RABP protocol is well suited to traffic safety information transmission on urban roads.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U492.8;TP391.44;TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 王安;呂娜;王翔;張?jiān)劳?;基于QualNet的數(shù)據(jù)鏈仿真技術(shù)研究[J];計(jì)算機(jī)工程與設(shè)計(jì);2012年09期

2 劉小洋;伍民友;;車聯(lián)網(wǎng):物聯(lián)網(wǎng)在城市交通網(wǎng)絡(luò)中的應(yīng)用[J];計(jì)算機(jī)應(yīng)用;2012年04期

3 李宏海;劉冬梅;王晶;;日本VICS系統(tǒng)的發(fā)展介紹[J];交通標(biāo)準(zhǔn)化;2011年15期

4 陳超;呂植勇;付姍姍;彭琪;;國內(nèi)外車路協(xié)同系統(tǒng)發(fā)展現(xiàn)狀綜述[J];交通信息與安全;2011年01期

5 劉富強(qiáng);項(xiàng)雪琴;邱冬;;車載通信DSRC技術(shù)和通信機(jī)制研究[J];上海汽車;2007年08期

，

本文編號：2377790