MI-VANET:一种基于移动基础设施的城市环境VANET架构

Jie Luo, Xinxing Gu, Tong Zhao, W. Yan
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引用次数: 67

摘要

近年来,车载自组织网络(VANET)引起了人们的广泛关注。然而,传统的VANET只是MANET的一个实例,其中节点在数据传输方面被平等对待。我们首先分析了城市VANET的独特特征,即车辆类型不同,受交通信号灯的影响,以集群的形式移动。在此基础上,提出了一种基于移动基础设施的VANET (MIVANET)两层架构。在这个体系结构中,总线构成了数据传输的移动主干,而底层则由普通汽车和乘客组成。MI-VANET不仅可以带来普通汽车不必为其他节点转发数据包的好处,还可以提高网络的连通性。提出了相应的移动基础设施注册(MIRG)和移动基础设施路由(MIRT)算法。公交线路信息在MIRT中得到充分利用。仿真结果表明,与传统VANET的GPSR相比,该方法的传输比提高了40-55%,吞吐量提高了一倍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
MI-VANET: A New Mobile Infrastructure Based VANET Architecture for Urban Environment
The vehicular ad hoc network (VANET) has attracted a lot of interest recently. However, traditional VANET is just an instantiation of MANET in which nodes are treated equally for data delivery. We first analyze the unique features of urban VANET that vehicles have different types, and move as clusters due to the influence of traffic lights. Then a two tier architecture called Mobile Infrastructure Based VANET (MIVANET) is proposed. In this architecture, the buses constitute a mobile backbone for data delivery while the low tier is composed of ordinary cars and passengers. MI-VANET will not only bring the benefit that ordinary cars do not have to forward packets for other nodes, but also improve the network connectivity. The corresponding Mobile Infrastructure Registering (MIRG) and Mobile Infrastructure Routing (MIRT) algorithms are also presented. The bus line information is made full use in MIRT. Simulation results show that there is a 40-55% improvement in delivery ratio while the throughput is even doubled compared to GPSR in traditional VANET.
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