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浙江大学学报(工学版)
土木工程、交通工程     
基于信道负载阈值的车联网信标消息生成策略
莫元富1, 于德新1,3, 宋军2, 郭亚娟1
1.吉林大学 交通学院,吉林 长春 130022;2.大连国际机场集团公司,辽宁 大连 116033;3.吉林大学 吉林省道路交通重点实验室,吉林 长春 130022
Beacon message generating strategy based on channel load preset threshold in VANET environment
MO Yuan fu1, YU De xin1,3, SONG Jun2, GUO Ya juan1
1.College of Transportation, Jilin University, Changchun 130022, China;2.Dalian International Airport, Dalian 116033, China;3. Jilin Province Key Laboratory of Road Traffic, Jilin University, Changchun 130022, China
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摘要:

为了解决车联网中的信道饱和、拥塞以及由此带来的消息冲突问题,研究和设计车联网信标消息生成策略.根据卡尔曼滤波预测时间域关系,提出卡尔曼滤波差分预测方程,建立卡尔曼滤波预测信标消息生成模型.根据信道负载实测值与预设阈值,建立时间间隔自适应调节的信标消息生成模型和策略.通过仿真八车道高速公路基本路段和利用浮动车在长春市某路段行车实验,进行数据采集.对基于信道负载阈值的车联网信标消息生成模型和策略进行验证,开展相关分析.结果表明,提出的该分布式策略在满足车联网应用所需的位置信息准确度的要求下,能够有效地降低信道负载,避免信道拥塞,保证了各节点的消息生成和传输的公平性.

Abstract:

The vehicle beacon message generation strategy was analyzed in order to solve the channel saturation, congestion, and the message conflict problems in vehicular ad hoc network. The Kalman filter difference prediction equation was proposed according to the relationship of the Kalman filter prediction in time domain. Then the beacon generation model was established. The beacon message generating model and strategy based on time interval adaptive adjusting were established according to the measured channel load and the preset threshold. Traffic data from the simulation of eight lane freeway basic section and the floating car driving test on Changchun urban road was collected to verify the second model and strategy. The corresponding data was analyzed. Results demonstrate that the proposed distributed strategy can effectively reduce the channel load, avoid the channel congestion and ensure the fairness of message generation and transmission for each node in the required position accuracy.

出版日期: 2016-03-31
:  U 491  
基金资助:

国家“863”高技术研究发展计划资助项目(2014BAG03B03).

通讯作者: 于德新,男,教授.ORCID: 0000 0003 4597 4629.     E-mail: yudx@jlu.edu.cn
作者简介: 莫元富(1984-),男,博士生,从事车联网信息处理和车间通信的研究.ORCID: 0000 0003 1732 0871.E-mail: 496629815@qq.com
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引用本文:

莫元富, 于德新, 宋军, 郭亚娟. 基于信道负载阈值的车联网信标消息生成策略[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.01.004.

MO Yuan fu, YU De xin, SONG Jun, GUO Ya juan. Beacon message generating strategy based on channel load preset threshold in VANET environment. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.01.004.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.01.004        http://www.zjujournals.com/eng/CN/Y2016/V50/I1/21

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