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26339 Proteus II: Design and Evaluation of an Integrated Power-Efficient Underwater Sensor Node
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van Kleunen, W.A.P. and Moseley, N.A. and Havinga, P.J.M. and Meratnia, N. (2015) Proteus II: Design and Evaluation of an Integrated Power-Efficient Underwater Sensor Node. International Journal of Distributed Sensor Networks, 2015. 791046. ISSN 1550-1329 ISBN 978-0-7695-4338-3 *** ISI Impact 0,906 ***

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We describe the design and evaluation of an integrated low-cost underwater sensor node designed for reconfigurability, allowing continuous operation on a relatively small rechargeable battery for one month. The node uses a host CPU for the network protocols and processing sensor data and a separate CPU performs signal processing for the ultrasonic acoustic software-defined Modulator/Demodulator (MODEM). A Frequency Shift Keying- (FSK-) based modulation scheme with configurable symbol rates, Hamming error correction, and Time-of-Arrival (ToA) estimation for underwater positioning is implemented. The onboard sensors, an accelerometer and a temperature sensor, can be used to measure basic environmental parameters; additional internal and external sensors are supported through industry-standard interfaces (I2C, SPI, and RS232) and an Analog to Digital Converter (ADC) for analog peripherals. A 433 MHz radio can be used when the node is deployed at the surface. Tests were performed to validate the low-power operation. Moreover the acoustic communication range and performance and ToA capabilities were evaluated. Results show that the node achieves the one-month lifetime, is able to perform communication in highly reflective environments, and performs ToA estimation with an accuracy of about 1-2 meters.

Item Type:Article
Research Group:EWI-PS: Pervasive Systems
Research Program:CTIT-General
Research Project:SUNRISE: Sensing, monitoring and actuating on the UNderwater world through a federated Research InfraStructure Extending the Future Internet
Uncontrolled Keywords:Underwater Acoustic Networks Scheduling Communication
ID Code:26339
Deposited On:16 December 2015
ISI Impact Factor:0,906
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