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Sensors 2017, 17(8), 1881; https://doi.org/10.3390/s17081881

Joint Mobile Data Collection and Wireless Energy Transfer in Wireless Rechargeable Sensor Networks

1
School of Information Science and Engineering, Central South University, Changsha 410083, China
2
College of Computer, National University of Defense Technology, Changsha 410073, China
3
Department of Mathematics and Computer Science, Northeastern State University, Tahlequah, OK 74464, USA
*
Author to whom correspondence should be addressed.
Received: 30 June 2017 / Revised: 5 August 2017 / Accepted: 13 August 2017 / Published: 16 August 2017
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Abstract

In wireless rechargeable sensor networks (WRSNs), there is a way to use mobile vehicles to charge node and collect data. It is a rational pattern to use two types of vehicles, one is for energy charging, and the other is for data collecting. These two types of vehicles, data collection vehicles (DCVs) and wireless charging vehicles (WCVs), are employed to achieve high efficiency in both data gathering and energy consumption. To handle the complex scheduling problem of multiple vehicles in large-scale networks, a twice-partition algorithm based on center points is proposed to divide the network into several parts. In addition, an anchor selection algorithm based on the tradeoff between neighbor amount and residual energy, named AS-NAE, is proposed to collect the zonal data. It can reduce the data transmission delay and the energy consumption for DCVs’ movement in the zonal. Besides, we design an optimization function to achieve maximum data throughput by adjusting data rate and link rate of each node. Finally, the effectiveness of proposed algorithm is validated by numerical simulation results in WRSNs. View Full-Text
Keywords: data collection; wireless charging; network partition; adaptive anchor selection algorithm; optimization function data collection; wireless charging; network partition; adaptive anchor selection algorithm; optimization function
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Zhong, P.; Li, Y.-T.; Liu, W.-R.; Duan, G.-H.; Chen, Y.-W.; Xiong, N. Joint Mobile Data Collection and Wireless Energy Transfer in Wireless Rechargeable Sensor Networks. Sensors 2017, 17, 1881.

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