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Wireless Sensor Networks are attracting during last decades more interest in both civil and military fields. This interest combined with recent advanced in microelectronics drive the Wireless Sensor Networks in the front of the stage. They are emerging as a key solution to monitor remote and/or hostile environments. However, they still faced various challenges among which, power management is one...
Top-k monitoring queries are useful in many wireless sensor network applications. There is a well-known approach called FILA to process this kind of queries. Its basic idea is to install a filter at each sensor node to avoid unnecessary transmissions of sensor readings. FILA uses two algorithms to ensure the correctness and efficiency of the approach: a query reevaluation algorithm and a filter setting...
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