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Optimal Deployment of Vector Sensor Nodes in Underwater Acoustic Sensor Networks

Title
Optimal Deployment of Vector Sensor Nodes in Underwater Acoustic Sensor Networks
Author
최지웅
Keywords
underwater acoustic sensor network; optimal deployment; vector sensor node; particle velocity; communication performance surface
Issue Date
2019-06
Publisher
MDPI
Citation
SENSORS, v. 19, No. 13, Article no. 2885
Abstract
Underwater acoustic sensor networks have recently attracted considerable attention as demands on the Internet of Underwater Things (IoUT) increase. In terms of efficiency, it is important to achieve the maximum communication coverage using a limited number of sensor nodes while maintaining communication connectivity. In 2017, Kim and Choi proposed a new deployment algorithm using the communication performance surface, which is a geospatial information map representing the underwater acoustic communication performance of a targeted underwater area. In that work, each sensor node was a vertically separated hydrophone array, which measures acoustic pressure (a scalar quantity). Although an array receiver is an effective system to eliminate inter-symbol interference caused by multipath channel impulse responses in underwater communication environments, a large-scale receiver system degrades the spatial efficiency. In this paper, single-vector sensors measuring the particle velocity are used as underwater sensor nodes. A single-vector sensor can be considered to be a single-input multiple-output communication system because it measures the three directional components of particle velocity. Our simulation results show that the optimal deployment obtained using single-vector sensor nodes is more effective than that obtained using a hydrophone (three-channel vertical-pressure sensor) array.
URI
https://www.mdpi.com/1424-8220/19/13/2885http://repository.hanyang.ac.kr/handle/20.500.11754/116395
ISSN
1424-8220
DOI
10.3390/s19132885
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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