Impact of desynchronization problem in 1609.4/WAVE multi-channel operation

2015 7th International Conference on New Technologies, Mobility and Security (NTMS) Pub Date : 2015-07-27 DOI:10.1109/NTMS.2015.7266493

E. Donato, E. Madeira, L. Villas

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Abstract

The development of Intelligent Transportation Systems comprises a large number of research areas among which vehicular networks (VANET) is one of the main areas. For that reason, it is necessary to develop standards designed specifically for vehicular networks aiming at the best use of their resources. In order to do this, the Wireless Access in Vehicular Environments (WAVE) was developed to enable wireless access in the vehicular environment. The WAVE architecture is based on a multi-channel operation, where only one channel is active at a given time and each channel is used for certain kind of applications. For this, a switching channel mechanism is required, but, due the use of only one antenna, this switching channel mechanism can introduce an undesirable effect that allows different vehicles to transmit simultaneously, resulting in collisions. Due to this, this paper presents an overview about the desynchronization problem and shows its impact in the VANET communication protocols. Simulations showed the negative impact of the desynchronization problem in the performance of transmissions in vehicular environment.

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不同步问题对1609.4/WAVE多通道运行的影响

智能交通系统的发展包括许多研究领域，其中车联网(VANET)是主要研究领域之一。因此，有必要制定专门针对车载网络的标准，以最大限度地利用其资源。为了实现这一点，开发了车载环境无线接入(WAVE)来实现车载环境中的无线接入。WAVE架构基于多通道操作，在给定的时间只有一个通道是活动的，每个通道用于特定类型的应用程序。为此，需要一种切换通道机制，但是，由于只使用一个天线，这种切换通道机制可能会引入一种不希望的效果，即允许不同的车辆同时传输，从而导致碰撞。鉴于此，本文概述了非同步问题，并说明了它对VANET通信协议的影响。仿真结果表明，不同步问题对车辆环境下变速器的性能有负面影响。

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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2015 7th International Conference on New Technologies, Mobility and Security (NTMS)

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