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The reliability goal of wireless sensor network requires the network to be biconnected, so that the failure of one single node will not disturb the connectivity of the whole network. Wireless sensor network with uniform communication power and transmission radius is modeled as planar undirected graph. A search algorithm running in O(n3) polynomial time is proposed to find all the biconnected components...
Wireless sensor networks (WSN) are composed of a large number of sensor nodes which are connected by wireless channels. Some of these sensor nodes are regarded as critical nodes which are responsible for the management of the other nodes in their sphere. Therefore, update of node information must be implemented through these critical nodespsila multicast operation. In this paper, we present a novel...
Wireless sensor networks are mainly characterized by dense deployment of sensor nodes which collectively transmit information about sensed events to the sink. Due to the high density of nodes, spatially redundant data is generated. In this paper, a pre-selected clustering protocol is proposed to exploit the spatial correlation. In each round, the protocol dynamically divides the entire sensing region...
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