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Congestion control techniques in VANETs: A survey

机译:VANET中的拥塞控制技术:一项调查

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During these last years, Intelligent Transport Systems (ITS) have experienced a great growth in both areas: academic and industrial. ITS which aim to increase safety and comfort for users' transport, are essentially governed by Vehicular Ad hoc Networks: VANETs. In such networks, nodes represent smart vehicles that can communicate either between themselves to exchange traffic information or with roadside infrastructure to disseminate or request useful information. Therefore, the congestion control remains one of the most challenging problems of these networks. This paper surveys congestion control techniques, which are divided into three categories: Rate adaptation, Media access control (MAC) and trajectory based schemes. For each technique we give its principle, its merits and its limits. A comparative study with respect to some relevant metrics is given as well.
机译:在最近几年中,智能交通系统(ITS)在学术和工业两个领域都取得了长足的发展。旨在提高用户运输安全性和舒适性的ITS基本上由车辆专用网络VANET支配。在这样的网络中,节点代表智能车辆,可以在它们之间进行通信以交换交通信息,也可以与路边的基础设施进行通信以传播或请求有用的信息。因此,拥塞控制仍然是这些网络中最具挑战性的问题之一。本文概述了拥塞控制技术,将其分为三类:速率自适应,媒体访问控制(MAC)和基于轨迹的方案。对于每种技术,我们都会给出其原理,优点和局限性。还就一些相关指标进行了比较研究。

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