SEDAN: Secure and Efficient Protocol for Data Aggregation in Wireless Sensor Networks

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Executive Summary

Energy is a scarce resource in Wireless Sensor Networks. Some studies show that more than 70% of energy is consumed in data transmission. Since most of the time, the sensed information is redundant due to geographically collocated sensors, most of this energy can be saved through data aggregation. Furthermore, data aggregation improves bandwidth usage. Unfortunately, while aggregation eliminates redundancy, it makes data integrity verification more complicated since the received data is unique. In this paper, the authors present a new protocol that provides secure aggregation for wireless sensor networks.

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