Abstract:In a relay based two-tier sensor network the individual sensor nodes, constituting the lower tier of the network, are partitioned into clusters and transmit their data directly to their respective cluster heads. Higher-powered relay nodes act as cluster heads and form the upper tier of the sensor network, that communicates received data to the base station. In this model, if a relay node becomes faulty, all data from the cluster of the faulty node, as well as data from other clusters that is routed through the… Show more
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