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Design and Evaluation of a Low-Cost Acoustic Chamber for Underwater Networking Experiments

Meneghello, Francesca and Campagnaro, Filippo and Diamant, Roee and Casari, Paolo and Zorzi, Michele (2016) Design and Evaluation of a Low-Cost Acoustic Chamber for Underwater Networking Experiments. In: The 11th ACM International Conference on Underwater Networks & Systems (ACM WUWNet 2016), 24–26 October 2016, Shanghai, China.

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Abstract

Testing acoustic equipment before sea experiments is a necessary step, which usually requires large and expensive facilities. In this paper, we present the design guidelines, structure and details of a small-scale, low-cost acoustic chamber for in-lab testing of underwater acoustic networks. The chamber has been assembled with the objective to be of low cost and limited size: therefore, its installation fits small university laboratories that cannot afford large testing pools. The chamber was designed to mitigate the extreme multipath which, in a small chamber, makes communications unreliable. Considering this challenge, our chamber includes a phono-absorbing coating on the walls and floor, to be optionally complemented by a panel of the same coating material, to be installed at the water surface level. After providing the details of several phono-absorbing materials to motivate our specific choice, we carry out a number of transmission experiment with EvoLogics modems, proving that our design substantially reduces the severe multipath and thereby improves the communications quality.

Item Type: Conference or Workshop Papers (Paper)
Uncontrolled Keywords: Underwater acoustic networks; laboratory tests; acoustic chamber; phono-absorbing coating design; EvoLogics modems; experiments; packet delivery ratio; multipath evaluation.
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Paolo Casari
Date Deposited: 22 Nov 2016 11:40
Last Modified: 22 Nov 2016 11:44
URI: http://eprints.networks.imdea.org/id/eprint/1487

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