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Mobile beacon based range free localization method for wireless sensor networks

机译:基于移动信标的无线传感器网络无范围定位方法

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摘要

The existing mobile beacon based range free localization method has two basic problems: (1) the accuracy of position estimation depends on closer beacon broadcasting intervals and (2) varying radio propagation irregularity has a major impact on the localization accuracy. In this paper, we overcome these two problems by proposing a mobile beacon (MOB) based range free localization method for wireless sensor networks, which is based on analytical geometry of an arc. In this scheme, Cramers rule is used, where the intersection point of two perpendicular bisectors of the chords is taken as the estimated position of the sensor node. Simulation results show that our proposed scheme performs better than the existing range free localization algorithms.
机译:现有的基于移动信标的无距离定位方法存在两个基本问题:(1)位置估计的精度取决于更近的信标广播间隔;(2)变化的无线电传播不规则性对定位精度有重大影响。在本文中,我们通过提出一种基于移动信标(MOB)的用于无线传感器网络的无范围定位方法来克服这两个问题,该方法基于弧的解析几何。在此方案中,使用Cramers规则,其中将弦的两个垂直二等分线的交点作为传感器节点的估计位置。仿真结果表明,本文提出的方案性能优于现有的无范围定位算法。

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