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Physical layer sensing using long pseudo noise codes

Published: 05 November 2012 Publication History

Abstract

As research into building underwater sensor networks proceeds, researchers are focusing on using these networks to solve applicable problems. In particular we have found that underwater sensor networks are capable of performing acoustic tomography, even at very small scales. As sensor networks consist of a network of power constrained devices, researchers must also look for efficient ways to perform the required tasks.
In our work we are developing an acoustic tomography system implemented in an underwater sensor network. Traditionally, acoustic signals used for tomography would be followed by acoustic signals carrying data about the previous operations. In this paper we present an acoustic network physical layer that provides for simultaneous data transmission and sensing using the same acoustic signal. By combining data and sensing transmissions we conserve energy. We describe the physical layer followed by experimental data that shows our system can perform as desired.

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cover image ACM Conferences
WUWNet '12: Proceedings of the 7th International Conference on Underwater Networks & Systems
November 2012
243 pages
ISBN:9781450317733
DOI:10.1145/2398936
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 05 November 2012

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WUWNET '12
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WUWNET '12: Conference on Under Water Networks
November 5 - 6, 2012
California, Los Angeles

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