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一种按需多径的无线传感器网络簇头路由协议

Zhigao Du,Depei Qian,Yi Liu,Shihan Li

Gaojishu Tongxin/Chinese High Technology Letters（2011）

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Abstract
针对分簇无线传感器网络中簇头之间通信联通难以保证,由簇头构成的多跳网络拓扑频繁变化的特点,提出了一种按需多径的簇头路由(OMCHR)协议.对比现有按需路由协议,其创新之处在于:(1)利用层ID限制路由控制消息的广播转发,并控制传输路径的跳数;(2)在路由发现过程中根据需要任命部分成员节点充当路由节点,保证簇头间的通信联通;(3)根据路径的剩余能量、跳数、传输可靠性等因素,采取多径传输方式进行负载均衡.实验表明,采用OMCHR协议,无线传感器网络的传输可靠性至少比现有协议提高30%,网络数据收集的效率至少比现有协议提高3倍左右.
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Key words
Cluster head routing,Clustering,Multi-path transmission,On-demand,Wireless sensor networks(WSN)
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