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In this paper, we propose a new privacy preserving data aggregation scheme for WSNs. Our scheme applies additive property of complex numbers in order to combine sensor data and preserve data privacy during transmission to the sink node. In addition, for supporting scalability, we propose a novel mechanism in which a special set of real numbers are assigned to sensor nodes as their IDs so that a single...
A sink node must be aware of the identifications (node IDs) of those all sensor nodes which contribute in aggregated value of sensors data in order to derive exact result of them in privacy preserving data aggregation scheme for wireless sensor networks (WSNs). This is possible only when if there exists such a scheme which can transmit IDs of all the participating sensor nodes to the sink node. But,...
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