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

Sensors

Antonio Sánchez²  Sara Blanc¹  Pedro Yuste²  Angel Perles² 

[1] Instituto ITACA, Universitat Politècnica de València, Camino de Vera s/n 46022, Valencia, Spain;

关键词: underwater sensor networks;    wireless sensor networks;    acoustic modems;    wake-up;    underwater MAC;   

DOI  :  10.3390/s120606837

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland