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"Targets Monitoring and Data Collection in Radio Frequency (RF) Energy " by Jia Fei

An Internet of Things (IoT) network or a Wireless Sensor Network (WSN) consists of sensor devices and one or more sinks. In general, these sensor devices monitor or collect samples of targets, e.g., vehicles, or their surrounding environment; e.g., the temperature of a room. They then upload their collected samples to a sink for further analysis. A critical issue when operating sensor devices is their energy limitation. To this end, researchers have considered charging sensor devices using a variety of sources, include solar, wind, and Radio Frequency (RF). Consequently, sensor devices with energy harvesting capability are able to operate perpetually assuming they do not spend more than their harvested energy. Apart from energy harvesting technologies, researchers have recently exploited the negligible energy cost aﬀorded by backscatter communications. Consequently, it allows sensor devices to use more of their harvested energy to collect samples that otherwise would be used for acti ....

Integer Linear Program , Wireless Sensor Network , Energy Reallocation Linear Programming Approximation , Radio Frequency , Hybrid Access Point , Mixed Integer Linear Program , Targets Monitoring , Data Collection , Ackscattering Communication ,

"On Max-Min Complete Targets Sampling in Backscatter-Aided RF Powered I" by Rui Yang, Changlin Yang et al.

This paper considers a Radio Frequency (RF) powered Internet of Things (IoT) network that exploits ambient backscatter communications to maximize the minimum number of samples of targets. We propose a Maximum Backscatter Opportunity Search (MBOS) heuristic algorithm to construct set covers to ensure complete targets coverage. Our results demonstrate that the performance of MBOS is within 91% of the optimal number of samples and it is 25% higher as compared to not using backscattering. ....

Radio Frequency , Maximum Backscatter Opportunity Search , Nternet Of Things , Mathematical Programming , Radio Frequency , Targets Monitoring , Wireless Power ,

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