| 智能传输系统中专用短程通信的媒体访问控制 |
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| 引用本文： | 刘晓艳,罗嘉辉.智能传输系统中专用短程通信的媒体访问控制[J].科技情报开发与经济,2005,15(14):213-214. |
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| 作者姓名： | 刘晓艳 罗嘉辉 |
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| 作者单位： | 1. 晋中学院计算机系,山西,晋中,030006;贵州工业大学计算机学院,贵州,贵阳,550003
2. 贵州工业大学计算机学院,贵州,贵阳,550003 |
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| 摘 要： | 在北美新的智能传输系统中，为缓解交通堵塞的表面传输设施的关键是建立在车一车无线电通信基础上，而75MHz专用短程通信可通过车一路连接满足将来大量媒介的传送。概述了专用短程通信的应用和IEEE802．11PHY和MAC属性的评估，及DSRC中802．11的局限性和DSRC的发展现状，期望802．11规格做出适当的调整来满足DSRC环境中多中继站连通性、高速车辆运行和一系列服务质量的需求。
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| 关 键 词： | 智能传输系统（ITS） 专用短程通信（DSRC） 多中继站 802．11协议 |
| 文章编号： | 1005-6033（2005）14-0213-02 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005年7月11日 |
MAC for Dedicated Short Range Communications in Intelligent Transport System |
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| LIU Xiao-yan,LUO Jia-hui.MAC for Dedicated Short Range Communications in Intelligent Transport System[J].Sci-Tech Information Development & Economy,2005,15(14):213-214. |
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| Authors: | LIU Xiao-yan LUO Jia-hui |
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| Abstract: | In new intelligent transportation system of North American, the emphasis of the surface transportation infrastructure is based on vehicle-to-vehicle wireless communications,while 75 MHz dedicated short range communications may content to future delivery of rich media via vehicle-to-roadside links.This paper provides a tutorial overview of DSRC applications, assess IEEE 802.11 PHY and MAC layer characteristics,limitations of 802.11 in DSRC environments and state of DSRC. and anticipates that 802.11 specifications will need to be suitably altered to meet requirements for DSRC environments of multihop connectivity,, high vehicle mobility and a variety of QOS requirements. |
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| Keywords: | intelligent transport system (ITS) dedicated short range communication (DSRC) multihop networking 802 11 protocol |
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