Real-Time Performance Evaluation of IEEE 802.11p EDCA Mechanism for IoV in a Highway Environment
Real-Time Performance Evaluation of IEEE 802.11p EDCA Mechanism for IoV in a Highway Environment
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高速公路环境下车联网 IEEE 802.11p EDCA 机制的实时性能评估
DOI：
10.1155/2020/8848477
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发表时间：
2020-08
影响因子：
--
通讯作者：
Wu Guilu
中科院分区：
文献类型：
--
作者：
Li Hong;Wu Qiong;Fan Jing;Fan Qiang;Chang Bo;Wu Guilu
随着5G的发展，车联网（IoV）发展成为物联网（IoT）的重要组成部分，车辆和公共基础设施通过IEEE 802.11p EDCA机制相互通信，以支持四种接入类别（ac）访问通道。由于车辆的移动性，网络拓扑是时变的，从而产生动态的网络性能。关于802.11p EDCA的静态性能和实时性能的研究工作很多，但现有的工作没有考虑极端高速公路场景下的实时性能。本文考虑802.11p EDCA机制中定义的四种ac来评估极端公路场景下网络实时性能的极限，即所有车辆之间保持最小的安全距离。通过仿真验证了该模型的性能。在极端情况下，有些ac可以满足实时性要求，有些则不能。
With the development of 5G, the Internet of Vehicles (IoV) evolves to be one important component of the Internet of Things (IoT), where vehicles and public infrastructure communicate with each other through a IEEE 802.11p EDCA mechanism to support four access categories (ACs) to access a channel. Due to the mobility of the vehicles, the network topology is time varying and thus incurs a dynamic network performance. There are many works on the stationary performance of 802.11p EDCA and some on real-time performance, but existing work does not consider real-time performance under extreme highway scenario. In this paper, we consider four ACs defined in the 802.11p EDCA mechanism to evaluate the limit of the real-time network performance in an extreme highway scenario, i.e., all vehicles keep the minimum safety distance between each other. The performance of the model has been demonstrated through simulations. It is found that some ACs can meet real-time requirements while others cannot in the extreme scenario.
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DOI：
10.1186/s13638-018-1025-5
发表时间：
2018-01
影响因子：
2.6
作者：
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DOI：
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发表时间：
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DOI：
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发表时间：
2010-12
期刊：
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影响因子：
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影响因子：
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DOI：
10.1109/glocom.2014.7036784
发表时间：
2014-12
期刊：
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影响因子：
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