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Reseach Article

Data Communication using OFDM System for Underwater Acoustic Sensor Network

Published on August 2017 by Jyotsna W. Chavhan, G. G. Sarate
International Conference on Quality Up-gradation in Engineering Science and Technology
Foundation of Computer Science USA
ICQUEST2016 - Number 1
August 2017
Authors: Jyotsna W. Chavhan, G. G. Sarate
e2f8c2da-f6c4-4af0-abe4-3d3487d4bd69

Jyotsna W. Chavhan, G. G. Sarate . Data Communication using OFDM System for Underwater Acoustic Sensor Network. International Conference on Quality Up-gradation in Engineering Science and Technology. ICQUEST2016, 1 (August 2017), 10-13.

@article{
author = { Jyotsna W. Chavhan, G. G. Sarate },
title = { Data Communication using OFDM System for Underwater Acoustic Sensor Network },
journal = { International Conference on Quality Up-gradation in Engineering Science and Technology },
issue_date = { August 2017 },
volume = { ICQUEST2016 },
number = { 1 },
month = { August },
year = { 2017 },
issn = 0975-8887,
pages = { 10-13 },
numpages = 4,
url = { /proceedings/icquest2016/number1/28127-1626/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference on Quality Up-gradation in Engineering Science and Technology
%A Jyotsna W. Chavhan
%A G. G. Sarate
%T Data Communication using OFDM System for Underwater Acoustic Sensor Network
%J International Conference on Quality Up-gradation in Engineering Science and Technology
%@ 0975-8887
%V ICQUEST2016
%N 1
%P 10-13
%D 2017
%I International Journal of Computer Applications
Abstract

In this paper, the low cost home-made underwater sensors are designed for underwater Acoustics Sensor Network. This system is used to read the values of pressure, temperature and salinity using these sensors under the water and then the values are transmitted from underwater sensor to base station receiver. The sensors are continuously reading these values. Here, the communication channel estimation model is designed using Rayleigh Fading method, where the Gaussian processes for complex values were used. The channel is called Rayleigh Fading since its phase is uniformly distributed in the range of (0,2?) for the zero value of the coefficients of amplitude and phase for time-varying delay line complex channel. Different algorithms and formulas are used for successful transmission of these values from one sensor to another. Acoustic channel is used for data transmission, which is estimated using Scattering function estimation and maximum data transmission can be possible using OFDM technique. Since the scattering nature of underwater communication raised the problem of multipath fading, Doppler delay, Doppler shift and Doppler spread. These all issues were tried to solve based on the maximum entropy modeling method. In this method the Doppler spread were identified in between the transmitted signal and the received signal. In this paper all the proposed method is tested with Matlab codes and their result are shown in terms of different plots. The hardware is designed and tested in shallow water environment and further be tested for other environment. The Matlab results are shown here for scattering function and absorption loss.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Underwater Sensor Network Acoustic Transmission Ofdm Multipath Fading Doppler Spread Effect.