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On the problem of wireless sensor network localization, few true three-dimensional (3D) methods have been developed to satisfy the practical needs. In this work we propose a range-based 3D localization algorithm that is accurate, anchor-free, scalable and physical position available. A novel combination of distance and direction measurement technique is introduced to estimate ranges between neighbors...
Optimizing energy consumption for extending the lifetime in wireless sensor networks is of dominant importance. Groups of autonomous robots and unmanned aerial vehicles (UAVs) acting as mobile data collectors are utilized to minimize the energy expenditure of the sensor nodes by approaching the sensors and collecting their buffers via single hop communication, rather than using multihop routing to...
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