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In this paper, we investigate a multi-node multi-antenna wireless-powered sensor networks (WPSN) comprised of one power beacon and multiple sensor nodes. The proposed beam-splitting technique enables a power beacon to split microwave energy beams towards multiple nodes for simultaneous charging. We propose an optimal joint beam-splitting and energy neutral control algorithm for perpetual operation...
In this paper, we study a multi-antenna wireless-powered sensor network (WPSN), in which a power beacon wirelessly transfers electric energy to a sensor node via an electromagnetic wave. We have implemented a real-life multi-antenna WPSN testbed and conducted extensive experiments on the testbed. The key technology for the high-efficiency WPSN is an adaptive energy beamforming scheme that dynamically...
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