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

Instituto ITACA, Universitat Politècnica de València, Camino de Vera s/n 46022, Valencia, Spain
* Author to whom correspondence should be addressed.
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)
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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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