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This paper addresses the energy-efficient data redistribution problem in Data Intensive Sensor Networks (DISNs). In a DISN, large volume of data gets generated which is first stored in the network, and is later collected for further analysis when the next uploading opportunity arises. The key concern in DISNs is to be able to redistribute the data from data generating nodes into the network, under limited storage and energy constraints at the sensor nodes. The authors formulate the data redistribution problem where the objective is to minimize the energy consumption during this process, while guaranteeing full utilization of the distributed storage capacity in the DISNs.
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