Networking across boundaries: enabling wireless communication through the water-air interface

We consider the problem of wireless communication across medium boundaries, specifically across the water-air interface. In particular, we are interested in enabling a submerged underwater sensor to directly communicate with an airborne node. Today's communication technologies cannot enable suc...

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Main Authors: Tonolini, Francesco, Adib, Fadel
Other Authors: Massachusetts Institute of Technology. Media Laboratory
Format: Article
Language:English
Published: Association for Computing Machinery (ACM) 2020
Online Access:https://hdl.handle.net/1721.1/128691
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author Tonolini, Francesco
Adib, Fadel
author2 Massachusetts Institute of Technology. Media Laboratory
author_facet Massachusetts Institute of Technology. Media Laboratory
Tonolini, Francesco
Adib, Fadel
author_sort Tonolini, Francesco
collection MIT
description We consider the problem of wireless communication across medium boundaries, specifically across the water-air interface. In particular, we are interested in enabling a submerged underwater sensor to directly communicate with an airborne node. Today's communication technologies cannot enable such a communication link. This is because no single type of wireless signal can operate well across different media and most wireless signals reflect back at media boundaries. We present a new communication technology, translational acoustic-RF communication (TARF). TARF enables underwater nodes to directly communicate with airborne nodes by transmitting standard acoustic signals. TARF exploits the fact that underwater acoustic signals travel as pressure waves, and that these waves cause displacements of the water surface when they impinge on the water-air boundary. To decode the transmitted signals, TARF leverages an airborne radar which measures and decodes these surface displacements. We built a prototype of TARF that incorporates algorithms for dealing with the constraints of this new communication modality. We evaluated TARF in controlled and uncontrolled environments and demonstrated that it enables the first practical communication link across the water-air interface. Our results show that TARF can achieve standard underwater bitrates up to 400bps, and that it can operate correctly in the presence of surface waves with amplitudes up to 16 cm peak-to-peak, i.e., 100, 000× larger than the surface perturbations caused by TARF's underwater acoustic transmitter.
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spelling mit-1721.1/1286912022-09-26T17:02:02Z Networking across boundaries: enabling wireless communication through the water-air interface Tonolini, Francesco Adib, Fadel Massachusetts Institute of Technology. Media Laboratory We consider the problem of wireless communication across medium boundaries, specifically across the water-air interface. In particular, we are interested in enabling a submerged underwater sensor to directly communicate with an airborne node. Today's communication technologies cannot enable such a communication link. This is because no single type of wireless signal can operate well across different media and most wireless signals reflect back at media boundaries. We present a new communication technology, translational acoustic-RF communication (TARF). TARF enables underwater nodes to directly communicate with airborne nodes by transmitting standard acoustic signals. TARF exploits the fact that underwater acoustic signals travel as pressure waves, and that these waves cause displacements of the water surface when they impinge on the water-air boundary. To decode the transmitted signals, TARF leverages an airborne radar which measures and decodes these surface displacements. We built a prototype of TARF that incorporates algorithms for dealing with the constraints of this new communication modality. We evaluated TARF in controlled and uncontrolled environments and demonstrated that it enables the first practical communication link across the water-air interface. Our results show that TARF can achieve standard underwater bitrates up to 400bps, and that it can operate correctly in the presence of surface waves with amplitudes up to 16 cm peak-to-peak, i.e., 100, 000× larger than the surface perturbations caused by TARF's underwater acoustic transmitter. 2020-11-30T19:08:33Z 2020-11-30T19:08:33Z 2018-08 2019-07-17T17:50:13Z Article http://purl.org/eprint/type/ConferencePaper 9781450355674 https://hdl.handle.net/1721.1/128691 Tonolini, Francesco and Fadel Adib. "Networking across boundaries: enabling wireless communication through the water-air interface." ACM SIGCOMM 2018 Conference, Budapest, Hungary, Association for Computing Machinery, August 2018. © 2018 The Authors en http://dx.doi.org/10.1145/3230543.3230580 ACM SIGCOMM 2018 Conference Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Association for Computing Machinery (ACM) MIT web domain
spellingShingle Tonolini, Francesco
Adib, Fadel
Networking across boundaries: enabling wireless communication through the water-air interface
title Networking across boundaries: enabling wireless communication through the water-air interface
title_full Networking across boundaries: enabling wireless communication through the water-air interface
title_fullStr Networking across boundaries: enabling wireless communication through the water-air interface
title_full_unstemmed Networking across boundaries: enabling wireless communication through the water-air interface
title_short Networking across boundaries: enabling wireless communication through the water-air interface
title_sort networking across boundaries enabling wireless communication through the water air interface
url https://hdl.handle.net/1721.1/128691
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