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

Autores

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

Resumo

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.

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Publicado

2016-08-07

Edição

Vol. 6 N.º 2 (2016)

Secção

Research Articles

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