The vehicular ad hoc network (VANET) is a self-organized and decentralized wireless ad hoc network formed by the mobile vehicles on demand to communicate the traffic-related valuable information among the vehicles. The mobile vehicles work as a node because they use to either send or receive traffic-related information in the network. The vehicles can communicate within restricted distance but mobility nature causes they frequently switch from one network to another network topology; therefore, the links among the vehicles seldom vanish. Therefore, in the multi-hop VANET delivery of the messages at the anticipated destination is problematic. In this paper, a routing mechanism namely link reliability-based multi-hop directional location routing (MHDLR) has proposed to overcome the link vanish problem. The MHDLR decides a link reliability-based next-hop node to create a strongly durable path from the source to destination. In multi-hop VANET, the inter-vehicle distance directly impacts on the connectivity of the vehicles. Therefore, to estimate the link reliability of vehicles their inter-vehicle distance and relative velocity have considered. The geometry-based localization mechanism (G-BLM) has been proposed to estimate the inter-vehicle distance of the vehicles. The performance of MHDLR has estimated for routing metrics i.e. path vanish, message broadcasting time in the group, packet delivery ratio and throughput. The simulated outcomes of the proposed model MHDLR have shown, its performance is better as compared to the existing fuzzy-logic based directional location routing (FLDLR), directional location aided routing (D-LAR) and location aided routing (LAR) protocols.

中文翻译：

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自组织网络中基于链路可靠性的多跳定向位置路由

车载自组织网络（VANET）是由移动车辆按需形成的自组织和分散式无线自组织网络，用于在车辆之间传递与交通相关的有价值的信息。由于移动车辆用于在网络中发送或接收与流量相关的信息，因此它们充当节点。车辆可以在有限的距离内进行通信，但是移动性使它们经常从一个网络切换到另一个网络拓扑。因此，车辆之间的联系很少消失。因此，在多跳VANET中，在预期目标处传递消息是有问题的。本文提出一种路由机制，即基于链路可靠性的多跳定向位置路由（MHDLR）提出了克服链接消失的问题。该MHDLR决定基于可靠性链接下一跳节点创建从源到目的地的强烈持久的路径。在多跳VANET中，车辆之间的距离直接影响车辆的连通性。因此，为了估计车辆的链路可靠性，已经考虑了它们的车辆间距离和相对速度。已经提出了基于几何的定位机制（G-BLM）来估计车辆的车辆间距离。MHDLR的性能已针对路由度量进行了估计，即路径消失，组中的消息广播时间，数据包传递率和吞吐量。该模型的模拟结果MHDLR已经显示，其与现有的基于模糊逻辑的定向位置路由（FLDLR），定向位置辅助路由（D-LAR）和位置辅助路由（LAR）协议相比，性能更好。