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Sensors 2011, 11(5), 4794-4807; doi:10.3390/s110504794

Information Potential Fields Navigation in Wireless Ad-Hoc Sensor Networks

*  and
School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
* Author to whom correspondence should be addressed.
Received: 6 April 2011 / Revised: 26 April 2011 / Accepted: 29 April 2011 / Published: 3 May 2011
(This article belongs to the Section Physical Sensors)
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As wireless sensor networks (WSNs) are increasingly being deployed in some important applications, it becomes imperative that we consider application requirements in in-network processes. We intend to use a WSN to aid information querying and navigation within a dynamic and real-time environment. We propose a novel method that relies on the heat diffusion equation to finish the navigation process conveniently and easily. From the perspective of theoretical analysis, our proposed work holds the lower constraint condition. We use multiple scales to reach the goal of accurate navigation. We present a multi-scale gradient descent method to satisfy users’ requirements in WSNs. Formula derivations and simulations show that the method is accurately and efficiently able to solve typical sensor network configuration information navigation problems. Simultaneously, the structure of heat diffusion equation allows more flexibility and adaptability in searching algorithm designs.
Keywords: wireless sensor networks; information field; diffusion equation; variation model wireless sensor networks; information field; diffusion equation; variation model
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Wei, W.; Qi, Y. Information Potential Fields Navigation in Wireless Ad-Hoc Sensor Networks. Sensors 2011, 11, 4794-4807.

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