Localization Based on Two-Bound Reflected Signals in Wireless Sensor Networks

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• 作者：Kaushik Mondal (18)
  Arjun Talwar (19)
  Partha Sarathi Mandal (18)
  Bhabani P. Sinha (20)
  
• 关键词：LOS ; NLOS ; Obstacles ; Localization ; Wireless networks
• 刊名：Lecture Notes in Computer Science
• 出版年：2013
• 出版时间：2013
• 年：2013
• 卷：7753
• 期：1
• 页码：347-360
• 全文大小：285KB
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• 作者单位：Kaushik Mondal (18)
  Arjun Talwar (19)
  Partha Sarathi Mandal (18)
  Bhabani P. Sinha (20)
  
  18. Indian Institute of Technology, Guwahati, India
  19. College of Engineering, Anna University, Chennai, India
  20. Indian Statistical Institute, Kolkata, India
  
• ISSN：1611-3349

文摘

In absence of line-of-sight (LOS) signal, localization is a real challenge since multi-path effect takes place due to reflections and/or scattering of signals. In this paper we have assumed that there are few anchor nodes present in the network which broadcast ultrasonic and electromagnetic signals with their known positions. Based on receiving those ultrasonic signals and using received signal strength of the electromagnetic signals, a localization technique has been proposed for finding position of other sensor nodes. On the assumption that a signal may be reflected at most twice before reaching a node, our technique provides on an average 67% reduction of the area of the zone in which the sensor node will be bound to reside.