Dhouha Krichen

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This paper presents the design of a wireless sensor network architecture suitable for structural health monitoring of air-crafts. The main objective is to improve airplane safety by detecting flutter phenomenon along the wings and communicating this information to the cockpit computer to react before vibration reaches resonance. Therefore, study of network(More)
Wireless sensor networks coverage is a major concern for many civilian and military applications, including border surveillance and battle field monitoring. The efficiency of these applications mainly depends on accurate and timely event detection and reliable communication. However, this cannot always be achieved due to holes created by obstacles and(More)
This paper presents a dynamic frequency allocation method which aims at optimizing the spectrum assignment in cognitive wireless sensor networks used for avionic control applications. The main objective is to improve the frequency utilization of the avionic bands by enabling the sensor nodes (i.e. secondary users or SUs) sharing the spectrum with primary(More)
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