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Geographic routing protocols for Vehicular Ad hoc NETworks (VANETs): A survey

机译：车载Ad hoc NETworks（VANET）的地理路由协议：一项调查

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During the last decade, many routing protocols have been proposed for Vehicular Ad hoc NETworks (VANETs) by taking into account their specific characteristics. The protocols based on the vehicles' positions, named geographic routing protocols (GR) or position-based routing protocols (PBR), were shown to be the most adequate to the VANETs due to their robustness in dealing with the dynamic environment changes and the high mobility of the vehicles. Instead of using the IP addresses, as in the case of Mobile Ah hoc NETworks (MANETs) protocols, position-based routing protocols are based on the geographical position of the vehicles when selecting the best path to forward the data. Further, they do not exchange link state information and do not maintain established routes as in MANET routing protocols. This makes the protocols more robust to the frequent topology changes and the high mobility of the vehicles. In this paper, we present a state-of-art of the routing protocols based on the geographic position of the vehicles. We discuss the pros and the cons of these protocols by exploring the motivations of design of such protocols and we define some possible directions for future research related to the use of this class of protocols. (C) 2018 Elsevier Inc. All rights reserved.
机译：在过去的十年中，考虑到特定网络特性，已经为车载Ad hoc NETworks（VANET）提出了许多路由协议。基于车辆位置的协议（称为地理路由协议（GR）或基于位置的路由协议（PBR））被证明最适合VANET，因为它们在应对动态环境变化方面的鲁棒性和高度车辆的机动性。基于位置的路由协议不是使用IP地址（例如在移动特设NETworks（MANET）协议的情况下），而是在选择最佳路径转发数据时基于车辆的地理位置。此外，它们不交换链接状态信息，也不像MANET路由协议那样维护已建立的路由。这使得协议对于频繁的拓扑变化和车辆的高机动性更加健壮。在本文中，我们介绍了基于车辆地理位置的最新路由协议。我们通过探索设计此类协议的动机来讨论这些协议的优缺点，并为与此类协议的使用相关的未来研究定义了一些可能的方向。 （C）2018 Elsevier Inc.保留所有权利。

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