Distributed Radio Interference Localization of Wireless Sensor Networks

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Distributed Radio Interference Localization of Wireless Sensor Networks

更新时间：2025-07-09

- Distributed Radio Interference Localization of Wireless Sensor Networks
- Vol. 43, Issue 8, Pages: 48-52(2009)
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Online First：10 August 2009，
  
  Published：2009
- 稿件说明：
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Distributed Radio Interference Localization of Wireless Sensor Networks[J]. 2009, 43(8): 48-52.
DOI：

Distributed Radio Interference Localization of Wireless Sensor Networks[J]. 2009, 43(8): 48-52. DOI：

摘要

针对现有无线传感器网络节点定位方法复杂度较高的问题

提出了一种基于射频干涉的分布式节点定位方法(DRIPS).首先利用2个锚节点形成射频干涉场

然后用其中1个锚节点的移动产生多普勒效应

从而各节点可通过测量自身低频接收信号场强指示的瞬时频率得到与移动锚节点之间的夹角信息.结合锚节点的地理位置

节点融合多组定位角度信息得到最优的位置估计.DRIPS方法仅需利用节点的常规无线通信设备

不需要额外的辅助测量装备

同时各节点独立进行自身的位置估计

不需要进行集中处理

是一种分布式的定位方法.仿真结果表明

对于200 m×200 m的定位区域

在多普勒频偏的测量精度为1 Hz时

节点的平均定位误差可以达到1 m以内.

Abstract

A novel distributed localization method based on radio interference(DRIPS)is proposed to reduce the complexity of existing localization methods for wireless sensor networks.The DRIPS utilizes two anchors to create an interference signal. Based on the Doppler effect produced by the movement of one transmitter

each sensor in a network can obtain the angle information with the mobile anchor through the Doppler shift measurement of locally received signal strength indication signal. Finally

each sensor utilizes multi-sets of the angle information and the location of the mobile anchor to estimate its optimal geographical location independently. The DRIPS only relies on radio transceivers without the use of extra measurement equipments

and the sensor node conducts localization in a completely distributed manner without information exchange or centralized processing. Simulation results show that the proposed method is effective and that the average localization error in a network will be less than 1 m when the measurement accuracy of Doppler shift is 1 Hz.

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references

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