| 基于模型分析的城市环境下车载移动Ad hoc网络路由协议改进策略 |
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| 引用本文： | 米振强,杨扬,郭勋,安建伟. 基于模型分析的城市环境下车载移动Ad hoc网络路由协议改进策略[J]. 北京科技大学学报, 2009, 31(11) |
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| 作者姓名： | 米振强 杨扬 郭勋 安建伟 |
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| 作者单位： | 北京科技大学信息工程学院,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 在Manhattan移动模型的基础上,深入分析了车载移动Ad hoc网络路由协议的性能问题. 结合AODV路由协议,提出了一种可以量化分析车载Ad hoc网络路由断链率和路由负载的模型. 模型分析指出,传统的移动Ad hoc网络路由协议应用于车载Ad hoc网络时性能会严重下降. 针对这一问题,提出了一种基于车辆运动方向信息的类AODV路由协议DBAP,将车辆的运动方向信息作为其路由发现过程中的辅助参数,从而显著地增强了路由稳定性. 仿真结果验证了模型的正确性,同时证明了本文所提出的DBAP路由协议在城市车载环境中具有较低的路由负载和路由断链率,在协议性能等方面相对于AODV协议具有显著提高.
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| 关 键 词： | 车载通信 Ad hoc网络 移动模型 路由协议 路由负载 |
Improvement of routing protocols in urban vehicular mobile Ad hoc networks based on an analytical model |
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| MI Zhen-qiang,YANG Yang,GUO Xun,AN Jian-wei. Improvement of routing protocols in urban vehicular mobile Ad hoc networks based on an analytical model[J]. Journal of University of Science and Technology Beijing, 2009, 31(11) |
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| Authors: | MI Zhen-qiang YANG Yang GUO Xun AN Jian-wei |
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| Affiliation: | MI Zhen-qiang,YANG Yang,GUO Xun,AN Jian-wei Department of Information Technology,University of Science , Technology Beijing,Beijing 100083,China |
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| Abstract: | The performance of routing protocols was studied in vehicular Ad hoc networks (VANETs) based on the Manhattan mobility model. Integrated with the AODV routing protocol,an analytical model was proposed,which was able to quantificationally measure the route breaking rate and routing overhead of VANETs. It is indicated by the analytical model that classic routing protocols in mobile Ad hoc networks can cause serious declination in the performance of VANETs; therefore,a direction based AODV routing protocol (DB... |
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| Keywords: | vehicular communication Ad hoc network mobility model routing protocol routing overhead |
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