Signal Transmission in Underwater Using Passive Time Reversal for Single and Multiuser

Authors

  • Mr. P. Sathya Narayanan
  • J. Shanmuga Kani
  • P. Kabilan

Abstract

This paper describes passive time reversal communications, which enables multiple users to send information simultaneously to the time reversal array. Experimental results at 3.5 kHz with a 1 kHz bandwidth demonstrate that as many as six users can transmit information over a 4 km range in a 120 m deep water using quaternary phase-shift keying (QPSK) modulation, achieving an aggregate data rate of 6 kb/s. Moreover, the same data rate has been achieved at 20 km range by three users using 16-quadrature amplitude modulation (16-QAM).  Keywords: Active time reversal, intersymbol interference (ISI), multiple-input-multiple-output (MIMO), multiuser communication, passive time reversal, time reversal communication Cite this Article Sathya Narayanan P, Shanmuga Kani J, Kabilan P. Signal Transmission in Underwater Using Passive Time Reversal for Single and Multiuser. Current Trends in Signal Processing. 2016; 6(2): 49–54p.

Downloads

Published

2016-08-07

Issue

Vol. 6 No. 2 (2016)

Section

Research Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

·         I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.

·         I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).

·         I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.

·          I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

_______________

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.