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http://dx.doi.org/10.5916/jkosme.2017.41.1.91

A study on underwater multiple sensors acoustic communication for offshore plant monitoring  

Ahn, Tae-Seok (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Baek, Chang-Uk (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Jung, Ji-Won (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.41, no.1, 2017 , pp. 91-98 More about this Journal
Abstract
In this paper, we analyzed underwater multiple sensors acoustic communication technologies for monitoring and control of offshore plants in underwater environments. Information on underwater structure of offshore plants is transmitted and received by multiple sensors at the same time. Using multiple sensors with same frequency, we employed spread spectrum techniques to avoid interferences between these multiple sensors. Owing to the multi-path characteristic in underwater communications, the performance is degraded. In order to improve the performance of underwater multiple sensors communication, we proposed turbo equalized RAKE receiver structures. Assuming that the number of sensors is fixed to three, we conformed the effectiveness of the proposed method as compared to the conventional one.
Keywords
Offshore plant; Acoustic communication; Spread spectrum; RAKE receiver;
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