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An analytical geometric range free localization scheme based on mobile beacon points in wireless sensor network

机译：无线传感器网络中基于移动信标点的无几何范围解析定位方案

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摘要

In many applications of wireless sensor network, the position of the sensor node is useful to identify the actuating response of the environment. The main idea of the proposed localization scheme is similar with most of the existing localization schemes, where a mobile beacon with global positioning system broadcast its current location coordinate periodically. The received information of the coordinates help other unknown nodes to localize themselves. In this paper, we proposed a localization scheme using mobile beacon points based on analytical geometry. Sensor node initially choose two distant beacon points, in-order to minimize its residence area. Later using the residence area, sensor node approximate the radius and half length of the chord with reference to one of the distant beacon point. Then the radius and half length of the chord are used to estimate the sagitta of an arc. Later, sensor node estimate its position using radius, half length of the chord, and sagitta of an arc. Simulation result shows the performance evaluation of our proposed scheme on various trajectories of mobile beacon such as CIRCLE, SPIRAL, S-CURVE, and HILBERT.
机译：在无线传感器网络的许多应用中，传感器节点的位置对于识别环境的激活响应很有用。所提出的定位方案的主要思想与大多数现有的定位方案相似，具有全球定位系统的移动信标定期广播其当前位置坐标。接收到的坐标信息可帮助其他未知节点定位自己。在本文中，我们提出了一种基于解析几何的使用移动信标点的定位方案。传感器节点最初选择两个遥远的信标点，以最小化其驻留区域。稍后使用驻留区域，传感器节点将参考远端信标点之一来估计半径和弦长的一半。然后，将弦的半径和一半长度用于估算弧线的弧度。之后，传感器节点使用半径，弦长的一半以及弧线的弧度来估计其位置。仿真结果表明，我们提出的方案在诸如CIRCLE，SPIRAL，S-CURVE和HILBERT的各种移动信标轨迹上的性能评估。

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