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Open AccessArticle

UAV Based Relay for Wireless Sensor Networks in 5G Systems

The College of Communication Engineering, Chongqing University, Chongqing 400044, China
The Department of Electrical and Computer Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada
The School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
Author to whom correspondence should be addressed.
Sensors 2018, 18(8), 2413;
Received: 29 June 2018 / Revised: 21 July 2018 / Accepted: 21 July 2018 / Published: 25 July 2018
(This article belongs to the Special Issue Smart Industrial Wireless Sensor Networks)
Relay is one of the most significant issues in smart industrial wireless sensor networks (WSN) due to the low transmitting power of sensors. By relay, the signals of sensors can be concentrated at the relay and further transmitted to the base station for decreasing energy consumption in the system. In the past decades, the relay in WSN is generally one super sensor with large transmitting power. However, the placement of the super sensor is static, which leads to the instability of performance in WSN under the time-varying wireless environment. Fortunately, unmanned aerial vehicles (UAV) can provide an effective leverage to improve the environment-adaptation in WSN compared to the static relay in WSN. In this paper, we employ UAV as the relay in WSN, which can move in three-dimensional space to possess a better position to minimize the system power consumption. We use a simple case study to demonstrate the effectiveness of UAV in WSN. Extended simulations are also given to verify the preferable performance of the UAV based relay in WSN. View Full-Text
Keywords: wireless sensor networks; unmanned aerial vehicle; relay; power consumption wireless sensor networks; unmanned aerial vehicle; relay; power consumption
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Fu, S.; Zhao, L.; Su, Z.; Jian, X. UAV Based Relay for Wireless Sensor Networks in 5G Systems. Sensors 2018, 18, 2413.

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