Abstract
Wireless Sensor Networks for Rainfall Monitoring (RM-WSNs) is a sensor network for the large-scale regional and moving rainfall monitoring, which could be controlled deployment. Delivery delay and cross-cluster calculation leads to information inaccuracy by the existing dynamic collaborative self-organization algorithm in WSNs. In this letter, a Local Dynamic Cluster Self-organization algorithm (LDCS) is proposed for the large-scale regional and moving target monitoring in RM-WSNs. The algorithm utilizes the resource-rich node in WSNs as the cluster head, which processes target information obtained by sensor nodes in cluster. The cluster head shifts with the target moving in chance and re-groups a new cluster. The target information acquisition is limited in the dynamic cluster, which can reduce information across-clusters transfer delay and improve the real-time of information acquisition. The simulation results show that, LDCS can not only relieve the problem of “too frequent leader switches” in IDSQ, also make full use of the history monitoring information of target and continuous monitoring of sensor nodes that failed in DCS.
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Supported by the Key Projection of Science and Technology Research of Ministry of Education of China (107057) and the Science & Technology Fund for Students of Hohai University (K200803).
Communication author: Wang Huibin, born in 1967, Ph.D., Associate Professor.
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Wang, H., Xu, L., Xiao, X. et al. A local dynamic cluster self-organization algorithm in wireless sensor networks for rainfall monitoring. J. Electron.(China) 27, 279–288 (2010). https://doi.org/10.1007/s11767-010-0323-5
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DOI: https://doi.org/10.1007/s11767-010-0323-5