Underwater Node Localization using Optoacoustic Signals
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Date
2022-01-21
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Citation of Original Publication
"Mahmud, Muntasir et al. Underwater Node Localization using Optoacoustic Signals. IEEE International Conference on Communications 16–20 May 2022 // Seoul, South Korea // Hybrid: In-Person and Virtual Conference."
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Subjects
Abstract
—Localization of underwater networks is important
in many military and civil applications. Because GPS receivers do
not work below the water surface, traditional localization methods
form a relative topology of underwater nodes (UWNs) and utilize
either anchor nodes or floating gateways with dual transceivers in
order to determine global coordinates. However, these methods
introduce logistical complications and security risks in deploying
the anchor and/or surface gateways. This paper tackles such an
issue by proposing new localization techniques which can remotely
localize UWNs using optoacoustic signals. In our approach, GPS
coordinates are transmitted from air to the UWN via creating an
underwater temporary isotropic acoustic transmitter with the
optoacoustic process. We analyze the process of controlling the
shape and size of the plasma to create the isotropic acoustic
transmitter and experimentally validate the generation of
isotropic acoustic signals. Then two methods of localization are
proposed for static and dynamic UWNs. Finally, the simulation
results with experimental values show the effectiveness of our
approach. Comparing to the traditional techniques, our approach
achieves the same accuracy without using any surface or
underwater anchor nodes.