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Range-Free Localization with the Radical Line

机译:自由基线无距离本地化

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Due to hardware and computational constraints, wireless sensor networks (WSNs) normally do not take measurements of time-of-arrival or time-difference-of-arrival for range-based localization. Instead, WSNs in some applications use range-free localization for simple but less accurate determination of sensor positions. A well-known algorithm for this purpose is the centroid algorithm. This paper presents a range-free localization technique based on the radical line of intersecting circles. This technique provides greater accuracy than the centroid algorithm, at the expense of a slight increase in computational load. Simulation results show that for the scenarios studied, the radical line method can give an approximately 2 to 30% increase in accuracy over the centroid algorithm, depending on whether or not the anchors have identical ranges, and on the value of DOI.
机译:由于硬件和计算约束,无线传感器网络(WSN)通常不会考虑到基于范围的定位的到达时间或到达时间差。相反,在某些应用中的WSNS使用无距离本地化以简单但不太准确的传感器位置的确定。众所周知的算法是以质心算法。本文介绍了基于交叉圆的自由基线的无距离定位技术。该技术提供比质心算法更高的精度,以略微增加计算负载。仿真结果表明,对于所研究的情景,基本线路方法可以在质心算法上提高约2%至30%,具体取决于锚点是否具有相同的范围,以及在DOI的值上的测定。

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