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Efficient and privacy-preserving data aggregation in a wireless sensor network (WSN) poses a tremendous challenge: how to cope with sensors compromise-once a sensor is compromised, its crypto material is compromised and so is privacy of aggregate data. To address this challenge, we propose two operationally simple and privacy-preserving protocols: PASKOS (Privacy-preserving based on Anonymously Shared...
One of the widespread types of crime is child kidnapping where the number of cases is increasing each year. With the modern telecommunication technology, the child protection should be better now than before. This paper presents a preliminary study on routing protocol for child tracking using combined infrastructure of Wireless Sensor Network and Cellular Network. The real-time application in these...
In wireless sensor networks (WSNs), a challenging problem is how to advance network QoS. Energy-efficiency, network communication traffic and failure-tolerance, these important factors of QoS are closely related with the applied performance of WSNs. Hence a QoS-aware routing protocol called directed alternative spanning tree (DAST) is proposed to balance the above three factors of QoS. A directed...
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