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A street-centric QoS-OLSR Protocol for urban Vehicular Ad Hoc Networks

机译：适用于城市车载Ad Hoc网络的以街道为中心的QoS-OLSR协议

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In this paper, we address the problem of routing in urban Vehicular ad hoc networks (VANETs) using the proactive Optimized Link State Routing (OLSR) protocol. OLSR selects MultiPoint Relays (MPRs) according to neighbors' reachability index while Quality-of-Service OLSR (QoS-OLSR) for highway VANET considers bandwidth, velocity and distance for MPR selection. For urban VANET, several reactive and position-based protocols were proposed using mobility metrics such as velocity and distance. Both QoS-OLSR and urban VANET protocols depend on basic mobility metrics which rapidly change due to environment restrictions; intersections and street topology. Our proposed street-centric QoS-OLSR protocol for urban VANET is considered as the first attempt to use an urban-based QoS metric for OLSR MPR selection. Link and street centric parameters such as bandwidth, street and lane are utilized in the proposed protocol. Simulations are conducted using the modified NS3 OLSR's implementation to incorporate the QoS metric. Simulation results demonstrate that our proposed QoS-OLSR improves throughput, Packet Delivery Ratio (PDR), average hop count and end-to-end delay compared to OLSR in urban VANET.
机译：在本文中，我们使用主动的优化链路状态路由（OLSR）协议解决了城市车辆自组织网络（VANET）中的路由问题。 OLSR根据邻居的可达性指数选择多点中继（MPR），而高速公路VANET的服务质量OLSR（QoS-OLSR）考虑选择MPR的带宽，速度和距离。对于城市VANET，使用诸如速度和距离之类的移动性指标，提出了几种基于反应性和基于位置的协议。 QoS-OLSR和城市VANET协议都依赖于基本的移动性指标，这些指标由于环境的限制而迅速变化。交叉路口和街道拓扑。我们针对城市VANET提出的以街道为中心的QoS-OLSR协议被认为是将基于城市的QoS度量用于OLSR MPR选择的首次尝试。在提议的协议中使用了以链路和街道为中心的参数，例如带宽，街道和车道。使用修改后的NS3 OLSR的实现方式进行仿真，以纳入QoS指标。仿真结果表明，与城市VANET中的OLSR相比，我们提出的QoS-OLSR可以提高吞吐量，分组传输率（PDR），平均跳数和端到端延迟。

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