IEEE 1609.4 DSRC multi-channel operations and its implications on vehicle safety communications

Qi Chen, D. Jiang, L. Delgrossi
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引用次数: 166

Abstract

This paper provides an overview of IEEE 1609.4, a work in progress standard for multi-channel operations over the 5.9GHz Dedicated Short Range Communications (DSRC) spectrum. In the U.S., the DSRC spectrum is organized into several channels. IEEE 1609.4 defines a time-division scheme for DSRC radios to alternately switch within these channels to support different applications concurrently. We describe the main features of IEEE 1609.4 in detail and discuss the main concerns with the original protocol design. In particular, we focus on those issues that can have a significant impact on vehicle safety communications. While IEEE 1609.4 is currently being updated and revised, this paper is intended to contribute to the technical discussions, and to bring attention to the most relevant and critical issues. This paper also contains results from software simulations conducted to study vehicle safety communications under stressful but realistic conditions. These results confirm concerns for the currently proposed scheme and provide a motivation for updating and revising the standard.
IEEE 1609.4 DSRC多通道操作及其对车辆安全通信的影响
本文概述了IEEE 1609.4,这是一项正在进行的标准,用于在5.9GHz专用短距离通信(DSRC)频谱上进行多通道操作。在美国,DSRC频谱被组织成几个频道。IEEE 1609.4定义了DSRC无线电的时分方案,在这些信道内交替切换,以同时支持不同的应用。我们详细描述了IEEE 1609.4的主要特性,并讨论了原始协议设计中的主要问题。我们特别关注那些可能对车辆安全通信产生重大影响的问题。虽然IEEE 1609.4目前正在更新和修订,但本文旨在为技术讨论做出贡献,并引起人们对最相关和最关键问题的关注。本文还包含了软件模拟的结果,以研究在有压力但现实条件下的车辆安全通信。这些结果证实了对目前提议方案的关注,并为更新和修订标准提供了动力。
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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