基于三角形理论的无线传感器网络定位算法
万国峰;钟俊
【期刊名称】《计算机应用研究》 【年(卷),期】2013(030)001
【摘要】针对基于垂直平分线的区域定位算法(MBLA)存在定位精度低、迭代次数多的缺点,提出了基于三角形理论的区域定位算法(TBLA).该算法以参与定位的两个锚节点连线作为一条边,以待定位节点与这两个锚节点的RSSI测距值作为另两条边构造三角形,然后根据三角形的形状进行定位.仿真结果表明,在相同通信半径下,TBLA定位误差只是MBLA的1/5,迭代次数减少了2/3以上,具有较高的应用价值.%Due to the shortcoming of MBLA (midnormal-based area localization algorithm) which has low localization precision and more iterative times, this paper proposed TBLA(triangle-based localization algorithm). This algorithm used two RSSI ranging values between the node to be localized with two anchor nodes, and then constructed a triangle to locate the unknown node. Simulation result shows that TBLA' s locating error is only 1/5 of MBLA' s, and more importantly, the iterative times are less 1/3 of MBLA' s in the same communication radius. So the application value of this algorithm has high. 【总页数】3页(249-251)
【关键词】无线传感器网络;节点定位;垂直平分线;三角形 【作者】万国峰;钟俊
【作者单位】西北民族大学电气工程学院,兰州730030;四川大学电气信息学院,
基于三角形理论的无线传感器网络定位算法
