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Design and Implementation of an Ultrasonic Communication Modem for Underwater Sensor Networks  

Byeon, Moo-Kwang (강릉원주대학교 전자공학과 무선통신연구실)
Park, Sung-Joon (강릉원주대학교 전자공학과 무선통신연구실)
Abstract
Underwater sensor networks (USN) for ocean development and disaster prevention have been emerged as one of interesting research topics recently. Since a high-speed and inexpensive communication modem is a prerequisite for deployment of USN, we design and implement an underwater modem by utilizing general-purpose waterproof ultrasonic sensors in this paper. We also make experiments in indoor and outdoor environment with two modems facing each other to conduct a point-to-point communication. According to the experiments, we can achieve the data rates of 1.5 kbps in a water tank and 2 kbps in a pond. Also, the maximum communication distance between two modems is about 30 meters. Besides, we conduct a point-to-multipoint experiment imitating USN by deploying a gateway, a sink node and three sensor nodes in a water tank.
Keywords
Underwater Wireless Sensor Networks; Underwater Communication; Acoustic Modem;
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  • Reference
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