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Wireless radio frequency (RF) energy transfer is a promising technology to provide a reliability-guaranteed power supply for wireless sensor networks. In this paper, we consider a special wireless-powered sensor network consisting of a mobile energy station that can travel through a preplanned path to charge wireless-powered sensors located in the considered area. We develop a hardware platform using...
Radio frequency (RF) energy transfer is a promising technology to supply power to the next generation wireless sensor networks. In this paper, we develop an opportunistic sensing framework for joint energy harvesting and channel access: a channel with a high probability of being occupied for harvesting energy is selected, and at the same time, a channel with a high probability of being vacant for...
This paper studies wireless sensor networks with energy harvesting in which a transmitter collects the observed source signals from the sensors and send to a fusion center using the energy harvested from an ambient environment. The main objective is to minimize the distortion between the source signal observed by the sensors and that recovered by the fusion center. We introduce a novel adaptive transmission...
Nodes location is a key technology in the research of Wireless Senor Network (WSN), in which the location method that is based on RSSI ranging and Least-Square is the current hot spot in research and application. Currently, with the tendency of more and more applications of WSN in the three-dimensional environment, the LSSVR three-dimensional WSN nodes location algorithm based on RSSI is proposed,...
The wireless sensor network node localization algorithms are studied more and more at present, but most are based on two-dimensional localization algorithm for three-dimensional localization of too few. Based on the researches on the classic two-dimensional localization algorithm, and the trilateration was extended to three-dimensional localization algorithm. Error analysis of this algorithm was revealed...
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