Abstract
Barrier coverage is a fundamental problem in wireless sensor networks, which can be applied to detect intruders that attempt to cross the boundaries of the region we are supervising. Among a number of issues related to barrier coverage, the most critical one is how to deploy sensors to construct barriers. Many barrier-building approaches have been proposed in previous papers by other scholars, while few papers adopt distributed strategies which allow sensors to move autonomously based on local information and are more practical in some unreachable areas. In this paper, we study a decentralized approach based on the nearest neighbor rule (NNR) to realize the self-deployment of wireless sensor networks to build K strong barriers, while considering network connectivity. This approach can be divided into three stages which correspond to the three times of using the NNR respectively. The sensor can autonomously choose the closest barrier to belonging to, which ensures the total migration distance is relatively smallest. Moreover, we test the availability and performance of our approach with simulations.
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Acknowledgements
This work was supported in part by the Overseas Academic Training Funds, University of Electronic Science and Technology of China (OATF, UESTC) (Grant No. 201506075013), and the Program for Science and Technology support in Sichuan Province (Grant Nos. 2014GZ0100 and 2016GZ0088).
Author’s contributions
JHL and QW proposed the algorithm and carried out the simulations. JHL and SHZ analyzed the experimental results. JHL gave the critical revision and final approval. All authors read and approved the final manuscript.
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The authors declare that they have no competing interests.
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Junhai Luo is equally contributed to this work.
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Luo, J., Ren, X. & Zou, S. A decentralized K-barriers construction approach based on nearest neighbors rule for two-dimensional rectangular region. Wireless Netw 24, 969–979 (2018). https://doi.org/10.1007/s11276-016-1425-6
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DOI: https://doi.org/10.1007/s11276-016-1425-6