Sensors 2012, 12(6), 6837-6856; doi:10.3390/s120606837
Article

An Ultra-Low Power and Flexible Acoustic Modem Design to Develop Energy-Efficient Underwater Sensor Networks

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Received: 3 April 2012; in revised form: 8 May 2012 / Accepted: 16 May 2012 / Published: 25 May 2012
(This article belongs to the Special Issue Underwater Sensor Nodes and Underwater Sensor Networks)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: This paper is focused on the description of the physical layer of a new acoustic modem called ITACA. The modem architecture includes as a major novelty an ultra-low power asynchronous wake-up system implementation for underwater acoustic transmission that is based on a low-cost off-the-shelf RFID peripheral integrated circuit. This feature enables a reduced power dissipation of 10 µW in stand-by mode and registers very low power values during reception and transmission. The modem also incorporates clear channel assessment (CCA) to support CSMA-based medium access control (MAC) layer protocols. The design is part of a compact platform for a long-life short/medium range underwater wireless sensor network.
Keywords: underwater sensor networks; wireless sensor networks; acoustic modems; wake-up; underwater MAC
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MDPI and ACS Style

Sánchez, A.; Blanc, S.; Yuste, P.; Perles, A.; Serrano, J.J. An Ultra-Low Power and Flexible Acoustic Modem Design to Develop Energy-Efficient Underwater Sensor Networks. Sensors 2012, 12, 6837-6856.

AMA Style

Sánchez A, Blanc S, Yuste P, Perles A, Serrano JJ. An Ultra-Low Power and Flexible Acoustic Modem Design to Develop Energy-Efficient Underwater Sensor Networks. Sensors. 2012; 12(6):6837-6856.

Chicago/Turabian Style

Sánchez, Antonio; Blanc, Sara; Yuste, Pedro; Perles, Angel; Serrano, Juan José. 2012. "An Ultra-Low Power and Flexible Acoustic Modem Design to Develop Energy-Efficient Underwater Sensor Networks." Sensors 12, no. 6: 6837-6856.

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