Title :
Coherent MIMO time reversal communications in shallow water
Author :
Song, H.C. ; Hodgkiss, W.S. ; Roux, P. ; Kuperman, W.A. ; Akal, T. ; Stevenson, M.
Author_Institution :
MPL/SIO, UCSD
Abstract :
A recent time reversal 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 (MIMO)" process potentially can increase the information data rate. This paper presents experimental results of coherent communications (BPSK, QPSK, and 8-QAM) at 3.5 kHz with a 1 kHz bandwidth where different messages were sent simultaneously to different depths at 9 km range in 1110-m deep shallow water
Keywords :
MIMO systems; coherence; telecommunication channels; underwater acoustic communication; 1 kHz; 1110 m; 3.5 kHz; 8-QAM; BPSK; QPSK; coherent communications; information data rate; multiple-input multiple-output process; shallow water; time reversal communications; time reversal experiment; Bandwidth; Binary phase shift keying; Intersymbol interference; MIMO; Oceans; Probes; Quadrature phase shift keying; Transmission line measurements; Underwater acoustics; Underwater communication;
Conference_Titel :
OCEANS '04. MTTS/IEEE TECHNO-OCEAN '04
Conference_Location :
Kobe
Print_ISBN :
0-7803-8669-8
DOI :
10.1109/OCEANS.2004.1406494
