基于DSRC的車聯(lián)網(wǎng)性能分析
[Abstract]:With the increasing attention of the public on road safety, the safety application of vehicle networking is becoming more and more popular. However, due to the high requirement of timeliness and accuracy of security message, many existing protocols can not be satisfied. At present, the popular DSRC protocol stack can solve the QoS problem of vehicle networking applications. The purpose of this paper is to propose an accurate and efficient analysis model for DSRC stack, focusing on the data link layer of DSRC. It is expected that the parameters that affect the network performance can be obtained by this model, and then these parameters can be adjusted to improve the network performance and finally meet the requirements of security applications. Because the DSRC protocol stack uses the EDCA mechanism to control the channel access in its MAC sublayer, and the EDCA mechanism is based on the DCF mechanism, the multilevel queue hierarchy is added. So this paper first introduces an existing two-dimensional Markov model based on DCF mechanism, and analyzes a series of network performance based on the Markov. Based on the above Markov model, this paper proposes two Markov models based on the EDCA mechanism: the 2-D Markov model with Backoff window variation and the one-dimensional Markov model with continuous slot transition. On the basis of these two Markov models, the theoretical analysis of node throughput and node single-hop delay is obtained by the derivation of mathematical formulas. First, the average collision probability and contract probability can be obtained from two Markov models. Then this paper will discuss the final node throughput and single-hop delay in two cases, namely, the node saturated outsourcing and the unsaturated outsourcing. In the case of saturated contract delivery, the throughput is first calculated according to the definition of throughput, that is, the node size per unit time. Then the single-hop delay can be calculated from the throughput, and the single-hop delay can be calculated according to the characteristic of single-hop delay, and then the node throughput can be calculated based on the characteristic of single-hop delay. In order to verify the correctness of the above model, the performance of the system under the EDCA mechanism is obtained by simulation, and the correctness of the proposed model can be proved by comparison and parameter adjustment. In the process of simulation, the network topology and experiment are generated several times to reduce the randomness of simulation results and ensure the accuracy of simulation results. The accuracy of the proposed model is verified by theoretical model analysis and simulation experiments. The theoretical analysis data are in good agreement with the simulation data. The network performance obtained by the theoretical analysis model presented in this paper is mainly affected by the AIFS, minimum Backoff window and the maximum Backoff window of the EDCA parameter set. The network performance is optimal when the network is about to enter the saturation state.
【學位授予單位】:電子科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:U495
【相似文獻】
相關(guān)期刊論文 前10條
1 xiong;美國選定DSRC標準一周年[J];交通世界;2003年04期
2 彭選榮;專用短程通信(DSRC)標準比較分析與關(guān)鍵內(nèi)容研究[J];廣東輕工職業(yè)技術(shù)學院學報;2003年04期
3 劉富強;項雪琴;邱冬;;車載通信DSRC技術(shù)和通信機制研究[J];上海汽車;2007年08期
4 李軍;;DSRC技術(shù)原理及其應(yīng)用[J];黑龍江交通科技;2008年12期
5 劉富強;孫斌;王新紅;;基于DSRC的車載通信平臺設(shè)計[J];今日電子;2009年09期
6 馮純康;周又玲;;DSRC短程通信協(xié)議研究[J];無線互聯(lián)科技;2011年01期
7 張令文;劉留;和雨佳;陶成;;全球車載通信DSRC標準發(fā)展及應(yīng)用[J];公路交通科技;2011年S1期
8 向昊;羅禹貢;張書瑋;朱陶;馮輝宗;;多道路調(diào)制環(huán)境下DSRC魯棒性研究與仿真[J];科學技術(shù)與工程;2013年24期
9 熊輝,史其信;DSRC編織車·路網(wǎng)絡(luò)神經(jīng)[J];交通世界;2001年05期
10 趙智明,項洪印;DSRC技術(shù)及其在智能交通中的應(yīng)用[J];中國科技信息;2005年22期
相關(guān)會議論文 前6條
1 肖迪;楊蘊;;對自主創(chuàng)新的中國DSRC技術(shù)標準的選擇思路[A];第二屆中國智能交通年會論文集[C];2006年
2 Tien-Chen,Ho;;Research on Specification for Dedicated Short Range Communication[A];2012年計算機應(yīng)用與系統(tǒng)建模國際會議論文集[C];2012年
3 陳云;蔡華;許宏科;;個性化交通信息服務(wù)系統(tǒng)的初步研究[A];第一屆全國公路科技創(chuàng)新高層論壇論文集智能交通與機電工程卷[C];2002年
4 林樹亮;;基于DSRC技術(shù)的多義性路徑識別基站應(yīng)用研究[A];《IT時代周刊》論文專版(第300期)[C];2014年
5 何玉婉;余立建;袁果;;ITS專用短程通信機制研究[A];2006中國西部青年通信學術(shù)會議論文集[C];2006年
6 章曙光;;智能交通專用短程通信協(xié)議分析[A];城市科學論集[C];2004年
相關(guān)重要報紙文章 前1條
1 實習生 范圓圓;車聯(lián)網(wǎng)將如何改變?nèi)藗兂鲂校縖N];科技日報;2014年
相關(guān)博士學位論文 前1條
1 賈樹蔥;智能交通網(wǎng)絡(luò)中資源競爭與合作機制研究[D];北京郵電大學;2017年
相關(guān)碩士學位論文 前10條
1 李云飛;基于DSRC的車聯(lián)網(wǎng)性能分析[D];電子科技大學;2017年
2 張三山;ETC系統(tǒng)中DSRC協(xié)議軟件的設(shè)計與實現(xiàn)[D];電子科技大學;2014年
3 柴龍;基于DSRC設(shè)備的ETC車道系統(tǒng)軟件設(shè)計[D];電子科技大學;2015年
4 王國升;基于DSRC的車載自組網(wǎng)QoS研究[D];電子科技大學;2016年
5 田曉莊;基于ETC應(yīng)用的DSRC空口數(shù)據(jù)監(jiān)聽分析儀的設(shè)計與實現(xiàn)[D];中國科學院大學(工程管理與信息技術(shù)學院);2016年
6 王超;ETC系統(tǒng)中DSRC協(xié)議研究與設(shè)計實現(xiàn)[D];北京交通大學;2017年
7 黃汝唯;ETC技術(shù)在水利工程中的應(yīng)用及DSRC偵聽儀軟件的設(shè)計與實現(xiàn)[D];華中科技大學;2016年
8 郭海陶;智能交通專用短程通信(DSRC)關(guān)鍵技術(shù)與應(yīng)用研究[D];華南理工大學;2010年
9 許澤斌;DSRC設(shè)備檢測儀的研究與設(shè)計[D];武漢理工大學;2012年
10 謝禮猛;基于DSRC車載通信的車輛防撞預(yù)警研究[D];江蘇科技大學;2017年
,本文編號:2398720
本文鏈接:http://sikaile.net/kejilunwen/daoluqiaoliang/2398720.html