【摘要】：Ad Hoc網(wǎng)絡作為一門新興的無線通信技術(shù)，因其自組網(wǎng)、可移動等顯著特點，被廣泛的應用在城市智能交通管理中。由于城市道路場景中存在著多車道、多岔口等復雜情形，以及行人與非機動車輛移動隨意性等干擾因素，道路信息復雜多變。所以導致作為Ad Hoc無線網(wǎng)絡中最基本的通信方式——廣播技術(shù)，目前存在的幾種算法都存在局限性，因此提出了基于節(jié)點相對距離與消息類型的廣播算法(theBroadcasting Algorithm based on Relatively Distance and Message Type, RDMT-BA)。具體內(nèi)容如下： 首先，介紹了Ad Hoc網(wǎng)絡的基本結(jié)構(gòu)、特點及應用，并對目前常見廣播算法的優(yōu)缺點進行了詳盡的討論和分析。 其次，根據(jù)城市場景的復雜多變性，提出了RDMT-BA廣播算法。該算法定義了相對距離S、相對速度v、轉(zhuǎn)發(fā)閾值D和等待時間T四個參數(shù)，并應用于直路和岔路兩種不同的場景，分別在覆蓋率、轉(zhuǎn)發(fā)節(jié)省數(shù)和延遲時間三個性能上，進行了仿真分析，同時與洪泛算法進行了對比。 最后，應用ZigBee無線技術(shù)，，設計了相應的硬件模塊和軟件程序，并進行了詳細的實驗測試。實驗結(jié)果與RDMT-BA算法的仿真數(shù)據(jù)進行比對分析，驗證了RDMT-BA算法的可行性和準確性。
[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.
【學位授予單位】：燕山大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U495;TN929.5;TP391.44

【參考文獻】

相關期刊論文 前10條

1 朱永琴;李諾薇;;基于ZigBee無線傳感器網(wǎng)絡的研究[J];電子商務;2012年07期

2 周中;張婷;;物聯(lián)網(wǎng)(Zigbee)合同能源管理[J];電氣時代;2011年01期

3 葛文濤;陳俊杰;;基于三邊定位的WSN錨節(jié)點加權(quán)補償算法[J];測控技術(shù);2010年09期

4 司海飛;楊忠;王s

本文編號：2218227