摘要
RM-AODV路径选择协议是IEEE802.11s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,IEEE802.11s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。
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.
出处
《计算机工程与应用》
CSCD
北大核心
2011年第21期109-111,118,共4页
Computer Engineering and Applications
基金
国家高技术研究发展计划(863)No.2006AA01Z232
江苏省自然科学基金(No.BK2007603)
江苏省高技术研究计划资助项目(No.BG2007045)
贵州省科技厅科技支撑(工业攻关)项目(黔科合GY字(2008)3034)
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~~
