| 多速率环境下AODV协议的改进 |
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| 引用本文： | 路松峰,刘芳,胡和平,吴亚敏.多速率环境下AODV协议的改进[J].小型微型计算机系统,2008,29(12). |
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| 作者姓名： | 路松峰 刘芳 胡和平 吴亚敏 |
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| 作者单位： | 华中科技大学,计算机科学与技术学院,湖北,武汉,430074 |
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| 摘 要： | 分析AODV协议在多速率环境下的不足,提出一种改进的协议AODV-HC.AODV-HC采用传输容量作为判断路径优劣的标准,通过链路单向稳定性和链路传输能力的度量,构建路径传输容量度量体系.在路径选择上将每条链路的稳定性和链路可承载的容量纳入考虑因素,能有效解决多速率环境下多跳低速链路带来的吞吐量限制.通过对AODV协议的路由请求信息和路由表的扩充以及对路由发现和路由回复过程的改进来实现AODV-HC协议.仿真实验表明基于传输容量度量的AODV-HC协议在节点高密度分布时能够提高网络的饱和吞吐量和分组交付率,降低平均分组传输时延.
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| 关 键 词： | 移动自组网 路由度量 AODV协议 传输容量 |
Optimization of AODV Routing Protocol Under Multi-rate Circumstance |
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| LU Song-feng,LIU Fang,HU He-ping,WU Ya-min.Optimization of AODV Routing Protocol Under Multi-rate Circumstance[J].Mini-micro Systems,2008,29(12). |
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| Authors: | LU Song-feng LIU Fang HU He-ping WU Ya-min |
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| Affiliation: | LU Song-feng,LIU Fang,HU He-ping,WU Ya-min(School of Computer Science , Technology,Huazhong University of Science&Technology,Wuhan 430074,China) |
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| Abstract: | This paper analyzes the defects of AODV routing protocol under multi-rate circumstance, then proposes an improved routing protocol AODV-HC. AODV-HC uses throughput capacity to evaluate a path, and constructs the system of path throughput capacity metric by calculating the link's directed stable and throughput capability. To choose a better path, it considers not only the link's stability but also it's capability to sending data, and then the throughput constraints along many low rate links under multi-rate ... |
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| Keywords: | ad hoc networks route metric AODV throughput capacity |
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