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Multiple-input-multiple-output coherent time reversal communications in a shallow-water acoustic channel

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6 Author(s)
Song, H.C. ; Marine Phys. Lab., Scripps Instn. of Oceanogr., La Jolla, CA ; Roux, P. ; Hodgkiss, W.S. ; Kuperman, W.A.
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A recent time reversal (TR) experiment demonstrated that multiple foci can be projected from an array of sources to the same range but at different depths. This multiple input/multiple output process can potentially increase the information data rate. This paper presents experimental results of coherent TR communications (binary phase-shift keying, quaternary phase-shift keying, and 8-quadratic-amplitude modulation) at 3.5 kHz with a 1-kHz bandwidth where different messages were sent simultaneously to either two or three different depths at an 8.6-km range in a 105-m-deep water

Published in:
Oceanic Engineering, IEEE Journal of  (Volume:31 ,  Issue: 1 )

Date of Publication: Jan. 2006

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