专用短程通信频谱中车辆安全通信的第二层协议设计

Proceedings. The 7th International IEEE Conference on Intelligent Transportation Systems (IEEE Cat. No.04TH8749) Pub Date : 2004-10-03 DOI:10.1109/ITSC.2004.1399059

Qing Xu, Tony K. Mak, J. Ko, R. Sengupta

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引用次数: 23

摘要

本文研究了车辆或路边向其他车辆发送安全信息的第二层协议的设计。目标是满足车辆安全应用对高可靠性和低接收延迟的要求。通信是一对多的、本地的、具有地理意义的。车载通信网络具有自组织和高度动态性，潜在存在大量竞争节点。我们设计了几个驻留在MAC层和MAC扩展层的随机访问协议。该协议适合DSRC多通道架构。推导了协议性能的解析界。通过仿真比较了各协议在接收可靠性和信道利用率方面的性能。在各种通信条件和车辆交通条件下测试了协议性能的敏感性。结果表明，该方法是支持车辆安全通信的MAC设计问题的可行解决方案。

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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Layer-2 protocol design for vehicle safety communications in dedicated short range communications spectrum

This paper studies the design of layer-2 protocols for a vehicle or the roadside to send safety messages to other vehicles. The target is to meet vehicle safety applications' requirements of high reliability and low delay in reception. The communication is one-to-many, local, and geo-significant. The vehicular communication network is ad-hoc and highly dynamic, with potentially large number of contending nodes. We design several random access protocols residing in MAC and MAC extension layers. The protocols fit the DSRC multichannel architecture. Analytical bounds of the protocols' performance are derived. Simulations are conducted to compare the performance of the protocols in terms of reception reliability and channel usage efficiency. The sensitivity of the protocol performance is tested under various communication conditions as well as vehicle traffic conditions. The results show that our approach is a feasible solution to the MAC design problem to support vehicle safety communications.

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Proceedings. The 7th International IEEE Conference on Intelligent Transportation Systems (IEEE Cat. No.04TH8749)

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