基于RDMT-BA算法的城市车联网系统研究
发布时间：2018-09-01 20:13
【摘要】：Ad Hoc网络作为一门新兴的无线通信技术，因其自组网、可移动等显著特点，被广泛的应用在城市智能交通管理中。由于城市道路场景中存在着多车道、多岔口等复杂情形，以及行人与非机动车辆移动随意性等干扰因素，道路信息复杂多变。所以导致作为Ad Hoc无线网络中最基本的通信方式——广播技术，目前存在的几种算法都存在局限性，因此提出了基于节点相对距离与消息类型的广播算法(theBroadcasting Algorithm based on Relatively Distance and Message Type, RDMT-BA)。具体内容如下： 首先，介绍了Ad Hoc网络的基本结构、特点及应用，并对目前常见广播算法的优缺点进行了详尽的讨论和分析。 其次，根据城市场景的复杂多变性，提出了RDMT-BA广播算法。该算法定义了相对距离S、相对速度v、转发阈值D和等待时间T四个参数，并应用于直路和岔路两种不同的场景，分别在覆盖率、转发节省数和延迟时间三个性能上，进行了仿真分析，同时与洪泛算法进行了对比。 最后，应用ZigBee无线技术，，设计了相应的硬件模块和软件程序，并进行了详细的实验测试。实验结果与RDMT-BA算法的仿真数据进行比对分析，验证了RDMT-BA算法的可行性和准确性。
[Abstract]:As a new wireless communication technology, Ad Hoc network is widely used in urban intelligent traffic management because of its characteristics of ad hoc network and mobility. The road information is complex and changeable because of the complex situations such as multi-lane and multi-fork in the urban road scene and the random movement of pedestrians and non-motor vehicles. Therefore, as the most basic communication mode in Ad Hoc wireless network, the broadcast technology has some limitations. Therefore, a broadcast algorithm based on the relative distance between nodes and message types, (theBroadcasting Algorithm based on Relatively Distance and Message Type, RDMT-BA) is proposed. The main contents are as follows: firstly, the basic structure, characteristics and applications of Ad Hoc network are introduced, and the advantages and disadvantages of common broadcast algorithms are discussed and analyzed in detail. Secondly, according to the complex variability of urban scene, the RDMT-BA broadcast algorithm is proposed. The algorithm defines four parameters, namely relative distance S, relative velocity v, forwarding threshold D and waiting time T, and applies them to two different scenarios, namely, the coverage rate, the forwarding savings and the delay time, respectively. The simulation analysis is carried out, and the flooding algorithm is compared. Finally, using ZigBee wireless technology, the corresponding hardware modules and software programs are designed, and detailed experimental tests are carried out. The experimental results are compared with the simulation data of RDMT-BA algorithm to verify the feasibility and accuracy of the RDMT-BA algorithm.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;TN929.5;TP391.44
[Abstract]:As a new wireless communication technology, Ad Hoc network is widely used in urban intelligent traffic management because of its characteristics of ad hoc network and mobility. The road information is complex and changeable because of the complex situations such as multi-lane and multi-fork in the urban road scene and the random movement of pedestrians and non-motor vehicles. Therefore, as the most basic communication mode in Ad Hoc wireless network, the broadcast technology has some limitations. Therefore, a broadcast algorithm based on the relative distance between nodes and message types, (theBroadcasting Algorithm based on Relatively Distance and Message Type, RDMT-BA) is proposed. The main contents are as follows: firstly, the basic structure, characteristics and applications of Ad Hoc network are introduced, and the advantages and disadvantages of common broadcast algorithms are discussed and analyzed in detail. Secondly, according to the complex variability of urban scene, the RDMT-BA broadcast algorithm is proposed. The algorithm defines four parameters, namely relative distance S, relative velocity v, forwarding threshold D and waiting time T, and applies them to two different scenarios, namely, the coverage rate, the forwarding savings and the delay time, respectively. The simulation analysis is carried out, and the flooding algorithm is compared. Finally, using ZigBee wireless technology, the corresponding hardware modules and software programs are designed, and detailed experimental tests are carried out. The experimental results are compared with the simulation data of RDMT-BA algorithm to verify the feasibility and accuracy of the RDMT-BA algorithm.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;TN929.5;TP391.44
【参考文献】
相关期刊论文 前10条
1 朱永琴;李诺薇;;基于ZigBee无线传感器网络的研究[J];电子商务;2012年07期
2 周中;张婷;;物联网(Zigbee)合同能源管理[J];电气时代;2011年01期
3 葛文涛;陈俊杰;;基于三边定位的WSN锚节点加权补偿算法[J];测控技术;2010年09期
4 司海飞;杨忠;王s
本文编号：2218227
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2218227.html
