| 基于RSSI的无线传感器网络节点定位技术 |
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| 引用本文： | 屈巍,李喆.基于RSSI的无线传感器网络节点定位技术[J].东北大学学报(自然科学版),2009,30(5):656-660. |
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| 作者姓名： | 屈巍 李喆 |
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| 作者单位： | 东北大学信息科学与工程学院,辽宁,沈阳,110004 |
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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： | 研究了无线传感器节点定位问题,在三边测量法定位基础上提出了一种基于RSSI的灵活的节点定位机制(FTL).其基本思想是采用三个普通信标节点,利用节点间的协作形成未知节点存在的有效误差区域,通过一跳及两跳邻居节点辅助完成定位.仿真显示该机制比现有的基于RSSI的三个普通信标节点分布式定位算法对未知节点与信标节点相对位置要求降低,在平均测距误差为10%时,平均定位误差约为节点射频通信距离的20%.
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| 关 键 词： | 无线传感器网络 定位 三边测量法 接收信号强度指示(RSSI) |
Localization Technology Based on the RSSI for Wireless Sensor Networks |
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| QU Wei,LI Zhe.Localization Technology Based on the RSSI for Wireless Sensor Networks[J].Journal of Northeastern University(Natural Science),2009,30(5):656-660. |
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| Authors: | QU Wei LI Zhe |
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| Institution: | QU Wei,LI Zhe (School of Information Science & Engineering,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | The node localization technology in wireless sensor networks was studied,and a flexible trilateration localization(FTL) based on RSSI was presented.In the FTL process three cooperant beacons are taken to generate sensors' effective error ranges where the unknown nodes exist in,thus completing the node localization with the assistance by one or two hops of neighboring nodes.Simulation results showed that FTL needs low request for the positions of sensors relative to beacons in comparison to the RSSI-based di... |
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| Keywords: | wireless sensor networks localization trilateration RSSI(received signal strength indicator) |
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