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802.11s中RM-AODV路径选择协议的研究
引用本文:张牧,严军荣. 802.11s中RM-AODV路径选择协议的研究[J]. 计算机工程与应用, 2011, 47(21): 109-111. DOI: 10.3778/j.issn.1002-8331.2011.21.028
作者姓名:张牧  严军荣
作者单位:1.贵阳学院 计算机系,贵阳 550005 2.南京邮电大学 信息网络技术研究所,南京 210003
基金项目:国家高技术研究发展计划(863)项目,江苏省自然科学基金,江苏省高技术研究计划资助项目,贵州省科技厅科技支撑(工业攻关)项目,贵阳市人才创新创业资金资助项目,贵阳市科技局信息化项目
摘    要:RM-AODV路径选择协议是IEEE 802.11s标准中HWMP路由选择协议的基础。不同于传统AODV协议在第3层使用IP地址路由和跳数作为路由metric,RM-AODV工作在第2层使用MAC地址和空时metric进行路径选择。为了适应无线mesh网络流量呈树状汇聚的特点,IEEE 802.11s标准还对RM-AODV进行树状先验式扩展。在典型无线mesh网络拓扑中通过仿真对RM-AODV的路径发现时间进行研究,进一步分析相对根节点的不同位置对路径发现时间的影响。

关 键 词:无线mesh网络  路径选择  混合无线mesh网络协议(HWMP)  按需距离矢量路由协议(RM-AODV)  
修稿时间: 

Research on 802.11s RM-AODV path selection protocol
ZHANG Mu,YAN Junrong. Research on 802.11s RM-AODV path selection protocol[J]. Computer Engineering and Applications, 2011, 47(21): 109-111. DOI: 10.3778/j.issn.1002-8331.2011.21.028
Authors:ZHANG Mu  YAN Junrong
Affiliation:1.Department of Computer Science,Guiyang University,Guiyang 550005,China 2.Institute of Information Networks Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
Abstract:Radio-Metric Ad hoc On-Demand Distance Vector(RM-AODV) path selection protocol is the basis of HWMP path selection protocol defined in IEEE 802.11s standard.Different from traditional AODV routing protocol working on layer 3 with IP address and using hop count as the routing metric,RM-AODV works on layer 2 with MAC address and uses airtime metric for path selection.In view of tree-based netflow of wireless mesh network,RM-AODV messages are also reused to support tree-based proactive extension in IEEE 802.11s standard.Simulations are performed in a typical wireless mesh work topology to research the path discovery time of RM-AODV,and the impact of relative position with root portal on path discovery time is analysed.
Keywords:Wireless Mesh Network(WMN)  path selection  Hybrid Wireless Mesh Protocol(HWMP)  Radio-Metric Ad hoc On-Demand Distance Vecto(rRM-AODV)
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