基于CAM的安全应用在高密度场景下使用ITS-G5A MAC的性能

2011 IEEE Intelligent Vehicles Symposium (IV) Pub Date : 2011-06-05 DOI:10.1109/IVS.2011.5940461

Bernhard Kloiber, T. Strang, Matthias Röckl, F. Müller

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引用次数: 44

摘要

ETSI ITS-G5是欧洲目前的车对车通信技术，将由ETSI TC ITS1进行标准化。它基于IEEE 802.11p，因此使用CSMA/CA方案进行媒体访问控制(MAC)。在本文中，我们使用ETSI ITS-G5 MAC技术在一个具有挑战性的场景中分析了基于协同感知消息(CAM)的安全应用程序的性能，该场景涉及MAC问题:一个合适的高速公路路段，每个方向有6个车道。高速公路场景在著名的ns-3仿真环境中进行了彻底的建模和实现。基于该模型，本文展示了基于CAM的安全应用程序在MAC挑战条件下的性能。我们提供了一组基于特定性能指标的模拟结果，该指标包含了安全应用的关键要求。最后，我们分析了两个具体的示例场景，以确定基于CAM的安全应用程序在高密度交通场景中对于MAC问题的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance of CAM based safety applications using ITS-G5A MAC in high dense scenarios

ETSI ITS-G5 is the current vehicle-to-vehicle communication technology in Europe, which will be standardized by ETSI TC ITS1. It is based on IEEE 802.11p and therefore uses a CSMA/CA scheme for Media Access Control (MAC). In this paper we analyze the performance of Cooperative Awareness Message (CAM) based safety applications using the ETSI ITS-G5 MAC technology in a challenging scenario with respect to MAC issues: A suitable freeway segment with 6 lanes in each direction. The freeway scenario is thoroughly modeled and implemented in the well known ns-3 simulation environment. Based on this model, the paper shows the performance of CAM based safety applications under MAC challenging conditions. We provide a set of simulation results resting upon a particular performance metric which incorporates the key requirements of safety applications. Finally we analyze two concrete example scenarios to determine how reliable CAM based safety applications are in high dense traffic scenarios with respect to MAC issues.

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2011 IEEE Intelligent Vehicles Symposium (IV)

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