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We discuss the technology detail of data aggregation in wireless sensor networks (WSNs) in this paper, which consists of three parts. First, we apply the classical K-average clustering algorithm to the phase of cluster division which is the first step of the aggregate tree. Second, the cluster head node and the cluster group nodes are constructed based on the entropy formula H(Sg|x)<;Fg(c) and pseudo-random function. Finally, we study the secure data fusion method among the nodes.
Date of Conference: 16-18 Aug. 2011