DE2: localization based on the rotating RSS using a single beacon
DE2: localization based on the rotating RSS using a single beacon
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DOI：
10.1007/s11276-015-0998-9
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发表时间：
2015-06
影响因子：
3
通讯作者：
Liqing Ren;Xiaojiang Chen;Binbin Xie;Zhanyong Tang;Tianzhang Xing;Chen Liu;Weike Nie;Dingyi Fang-
中科院分区：
文献类型：
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作者：
Liqing Ren;Xiaojiang Chen;Binbin Xie;Zhanyong Tang;Tianzhang Xing;Chen Liu;Weike Nie;Dingyi Fang-
无线定位技术已成为普适计算应用的一个重要研究领域。本文提出了一种（方向估计和距离估计）无线定位方法，该方法响应了只有一个信标可用于定位多个位置未知目标的情况。与之前的工作不同，以前的工作需要在训练阶段通过人工记录先验地了解场景（需要大量的人力），或者在定位阶段使用一定数量的信标来达到一定的精度（导致高能耗和减少网络生命周期），利用单个信标来定位多个目标，而不需要许多先前的人力。直觉是，未知位置和单个信标之间的方向和距离约束足以确定未知位置。当一个人在射频接收器（单个信标）周围旋转时，人体就会成为信号阻塞障碍。它使从发射机（位置未知）到单个接收机的信号在一定范围内衰减。利用人体的阻挡效应，可以得到未知位置与单个信标之间的方向约束。我们把人体旋转过程中接收器感知到的信号强度称为旋转接收信号强度（RSS）。此外，根据射频传播模型，在旋转RSS中得出了相应的距离约束。无需太多的预配置工作，就可以推动本地化所需的最小信标的限制。为了演示的效用，我们实现了现实世界的单信标无线网络。结果表明，这些应用程序可以显著受益于。
Wireless localization technology has become an important research area of pervasive computing applications. This paper presents(direction estimation and distance estimation), a wireless localization approach that is responsive to the scenario where only a single beacon is available to locate multiple position-unknown targets. Unlike the previous work which needs a priori knowledge of the scenario during the training phase by manual recording (taking significant human efforts), or uses a certain number of beacons during the localization phase to reach a certain accuracy (leading to high energy consumption and reducing network lifecycle),leverages a single beacon without many prior human efforts to locate multiple targets. The intuition underlyingis that, direction and distance constraints between an unknown position and the single beacon are adequate to determine the unknown position. When a person rotates around an RF receiver (the single beacon), the human body acts as a signal-blocking obstacle. It causes the signal from a transmitter (position-unknown) to the single receiver to attenuate in a certain scope. The blocking effect caused by human body can be utilized to obtain the direction constraint between the unknown position and the single beacon. And we call the signal strength which is perceived by the receiver during the person’s rotation as rotating received signal strength (RSS). Moreover, a corresponding distance constraint is also concluded in the rotating RSS according to the RF propagation model.pushes the limit of minimum beacons needed for localization without much pre-configuration effort. To demonstrate the utility of, we implementin real-world single beacon wireless networks. The results show that these applications can significantly benefit from.