Sensors and Materials

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Regional Density-Aware Data Collection Using Unmanned Aerial Vehicle in Large-Scale Wireless Sensor Networks

Eui-Jik Kim, Ho-Young Kim, Youngwoong Ko, Hyo Hyun Choi, and Jung-Hyok Kwon

(Received March 30, 2017; Accepted January 23, 2018)

Keywords: data collection, mobile sink, regional density, unmanned aerial vehicle, wireless sensor network

This paper presents a regional density-aware data collection (RDDC) using unmanned aerial vehicles (UAVs) in large-scale wireless sensor networks (WSNs). The RDDC is designed to support fast data collection by adaptively adjusting the value of the minimum contention window (CWmin) of the sensor nodes depending on the regional node density of sensing fields. The operation of RDDC consists of the region-partitioning, node-scanning, and data-collecting phases. In the region-partitioning phase, the RDDC partitions the sensing field into multiple regions and assigns a region ID to each sensor node according to the region to which it belongs. In the node-scanning phase, the RDDC calculates the node density of each region. Finally, in the data-collecting phase, the RDDC assigns different CWmin values to each sensor node considering the regional node density of each region. The experimental simulation results show that the RDDC obtains higher aggregate throughput and shorter delay than the existing data collection method.

Corresponding author: Hyo Hyun Choi




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Special Issue on Materials, Devices, Circuits, Analytical Methods for Various Sensors (Selected Papers from ICSEVEN 2017)
Guest editor, Chien-Jung Huang (National University of Kaohsiung), Chi-Chih Liao (II-V Epiworks, Inc.), and Ja-Hao Chen (Feng Chia University)
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Special Issue Dedicated to Professor Toshitsugu Ueda for His Achievements in Sensing Technologies
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Special Issue on Micro Energy Harvesting and Storing Technologies
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Special Issue on Internet of Things (IoT) and Applications for Improving Quality of Life
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Special Issue on the International Multi-Conference on Engineering and Technology Innovation 2017 (IMETI2017)
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4th Special Issue on the Workshop of Next-Generation Front-Edge Optical Science Research
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Special Issue on International Conference on BioSensors, BioElectronics, BioMedical Devices, BioMEMS/NEMS and Applications 2017 (Bio4Apps 2017)
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Special Issue on Nanostructure and Its Application in Sensors
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Special Issue on Micro/Nano Sensing Platforms Exploring Biomedical Innovation
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Special Issue on the International Multi-Conference on Engineering and Technology Innovation 2018 (IMETI2018)
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Special Issue on Materials, Devices, Circuits, Analytical Methods for Various Sensors (Selected Papers from ICSEVEN 2018)
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