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The effective energy control while maintaining reliable detection performance is a key problem in wireless sensor networks surveillance, such as blue-green algae surveillance. An intelligent wakening scheme (IWS) is proposed in this paper which considers different importance degrees of the grids in the surveillance zone. It uses a voronoi diagram to determine the effective scope of each sensor node...
Traffic information acquisition is often implemented by video cameras or inductive loops, which is expensive or inconvenient from installation and maintenance perspectives. We designed and implemented a pervasive traffic information acquisition system based on wireless sensor networks called EasiTia. Unlike existing solutions, the implementation of the system does not require extra devices in the...
The problem of find the location of a node in wireless sensor networks has been a research interest in recent years. However, traditional range-based localization methods for wireless sensor networks usually can not achieve high localization accuracy, when the number of labor anchor is less than three. In this paper, we propose a novel range-based distributed localization algorithm based on genetic...
Wireless sensor networks (WSNs) are more and more widely used in many different scenarios. The localization information is an important criterion for the capability of WSNs. Centroid algorithm is a classical range-free localization algorithm. After receiving the anchor nodes, a node estimates its location using the centroid formula. But the set of the asymmetrical anchor nodes distributed around the...
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