Next Article in Journal
Multi-Block Color-Binarized Statistical Images for Single-Sample Face Recognition
Previous Article in Journal
Risk of Falling in a Timed Up and Go Test Using an UWB Radar and an Instrumented Insole
Previous Article in Special Issue
Piezoelectric Energy Harvesting Controlled with an IGBT H-Bridge and Bidirectional Buck–Boost for Low-Cost 4G Devices
Open AccessArticle

Robust Silent Localization of Underwater Acoustic Sensor Network Using Mobile Anchor(s)

Institute of Sensors, Signals, and Systems, Heirot-Watt University, Edinburgh EH144AS, UK
*
Author to whom correspondence should be addressed.
Academic Editor: Abdallah Makhoul
Sensors 2021, 21(3), 727; https://doi.org/10.3390/s21030727
Received: 28 November 2020 / Revised: 17 January 2021 / Accepted: 18 January 2021 / Published: 21 January 2021
(This article belongs to the Special Issue Underwater Sensor Networks and Internet of Underwater Things)
Underwater acoustic sensor networks (UWASNs) can revolutionize the subsea domain by enabling low-cost monitoring of subsea assets and the marine environment. Accurate localization of the UWASNs is essential for these applications. In general, range-based localization techniques are preferred for their high accuracy in estimated locations. However, they can be severely affected by variable sound speed, multipath spreading, and other effects of the acoustic channel. In addition, an inefficient localization scheme can consume a significant amount of energy, reducing the effective life of the battery-powered sensor nodes. In this paper, we propose robust, efficient, and practically implementable localization schemes for static UWASNs. The proposed schemes are based on the Time-Difference-of-Arrival (TDoA) measurements and the nodes are localized passively, i.e., by just listening to beacon signals from multiple anchors, thus saving both the channel bandwidth and energy. The robustness in location estimates is achieved by considering an appropriate statistical noise model based on a plausible acoustic channel model and certain practical assumptions. To overcome the practical challenges of deploying and maintaining multiple permanent anchors for TDoA measurements, we propose practical schemes of using a single or multiple surface vehicles as virtual anchors. The robustness of localization is evaluated by simulations under realistic settings. By combining a mobile anchor(s) scheme with a robust estimator, this paper presents a complete package of efficient, robust, and practically usable localization schemes for low-cost UWASNs. View Full-Text
Keywords: acoustic sensor network; TDoA; network localization; robust estimation; mobile anchor acoustic sensor network; TDoA; network localization; robust estimation; mobile anchor
Show Figures

Figure 1

MDPI and ACS Style

Mourya, R.; Dragone, M.; Petillot, Y. Robust Silent Localization of Underwater Acoustic Sensor Network Using Mobile Anchor(s). Sensors 2021, 21, 727. https://doi.org/10.3390/s21030727

AMA Style

Mourya R, Dragone M, Petillot Y. Robust Silent Localization of Underwater Acoustic Sensor Network Using Mobile Anchor(s). Sensors. 2021; 21(3):727. https://doi.org/10.3390/s21030727

Chicago/Turabian Style

Mourya, Rahul; Dragone, Mauro; Petillot, Yvan. 2021. "Robust Silent Localization of Underwater Acoustic Sensor Network Using Mobile Anchor(s)" Sensors 21, no. 3: 727. https://doi.org/10.3390/s21030727

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop