Research Article | OPEN ACCESS
A Simulation Study on Use of Noise Signals for Underwater Communication
1Asim Ismail, 1Gang Qiao, 1Feng Zhou and 2Muhammad Aatiq
1College of Underwater Acoustic Engineering, Harbin Engineering University Harbin, China
2Institute for Communication Technologies and Embedded Systems (ICE), RWTH, Aachen, Germany
Research Journal of Applied Sciences, Engineering and Technology 2013 21:5026-5033
Received: September 11, 2012 | Accepted: October 19, 2012 | Published: May 20, 2013
Abstract
Underwater communication in sea environment is very challenging due to extended multipath propagation, dispersion and fading effects. Communication system, in which noise-like signals are used as an information carrier are investigated in this study. The process of cross correlation at the receiver is used for detection of transmitted information. This feature achieves Low Probability of Detection and Low Probability of Intercept (LPD/LPI) communications. The communication signals used are also environmentally safer because of their low levels. A method has been devised based on selected set of available noise like sequences to be used with BPSK modulation, although work on this scheme to be used without any carrier is also being carried out. The probability of error in the reception of signals by such system is given as a function of signal-to-noise ratio at the input of the receiver and the size of signal constellations. Bit error rate is also evaluated for different kinds of noise sequences under the influence of both simulated and actual measured ambient noise at different SNR.
Keywords:
Multi-path, noise-like signals, underwater Acoustic communication, underwater communication,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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