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We consider a spectrum sharing scenario, where a secondary network coexists with a primary network of multiple transceivers. The secondary network consists of an energy-constrained decode-and- forward secondary relay which assists the communication between a secondary transmitter and a destination in the presence of the interference from multiple primary transmitters. The secondary relay harvests...
A self-powered wireless ultrasonic flow sensor system has been designed and developed from a system level approach in this paper. By using small-sized hydroelectric generator as the source of power for commercial low power microcontrollers, energy harvesting circuitry, and GPRS transmitters, the sensor is capable of detecting water flow in water pipelines network. A major feature of this sensor system...
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