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Flexible, distributed monitoring systems are essential to support decisions in a variety of contexts such as, for instance, vehicular traffic control, emergency evacuation plans, energy optimization services, pollutant detection or intelligent agriculture applications. In this paper, we present WSNAP, a platform for wireless sensor network (WSN) deployment. WSNAP relies on standard technologies, which...
Operational lifetime of wireless sensor network (WSN) nodes is crucial in a variety of monitoring applications. As the radio chip is usually the most power-hungry component in small, low-cost WSN devices, battery lifetime can be extended by reducing the duty-cycle of the radio module. In fact, the wireless chip could be switched on just to run the tasks of the considered application, while it could...
This paper deals with new effective guidelines for keeping the decisional risks associated with conformance testing procedures below the given target values. The proposed approach relies on two closed-form expressions describing the dependence of both consumer's risk and producer's risk on three parameters: 1) the process capability index; 2) the test uncertainty ratio; and 3) the gauging-to-tolerance-interval...
Time synchronization in wireless sensor networks (WSNs) is essential to coordinate activities distributed among different nodes. In recent years many protocols have been proposed to achieve high-accuracy synchronization. However, up to now only few researchers focused their attention on the issue of trading the number of periodic synchronization events for target accuracy. In fact, the synchronization...
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