Taking Advantage of Multiple Scattering to Communicate with Time-Reversal Antennas
- 10 January 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (1) , 014301
- https://doi.org/10.1103/physrevlett.90.014301
Abstract
We present an experimental demonstration showing that, contrary to first intuition, the more scattering a mesoscopic medium is, the more information can be conveyed through it. We used a multiple input—multiple output configuration: a multichannel ultrasonic time-reversal antenna is used to transmit random series of bits simultaneously to different receivers which were only a few wavelengths apart. Whereas the transmission is free of error when multiple scattering occurs in the propagation medium, the error rate is huge in a homogeneous medium.Keywords
This publication has 11 references indexed in Scilit:
- An initial demonstration of underwater acoustic communication using time reversalIEEE Journal of Oceanic Engineering, 2002
- Super-resolution in time-reversal acousticsThe Journal of the Acoustical Society of America, 2002
- Communication in a Disordered WorldPhysics Today, 2001
- Random multiple scattering of ultrasound. II. Is time reversal a self-averaging process?Physical Review E, 2001
- Universal Conductance Distributions in the Crossover between Diffusive and Localization RegimesPhysical Review Letters, 2001
- Optimal focusing by spatio-temporal inverse filter. I. Basic principlesThe Journal of the Acoustical Society of America, 2001
- Transport parameters for an ultrasonic pulsed wave propagating in a multiple scattering mediumThe Journal of the Acoustical Society of America, 2000
- Communication Through a Diffusive Medium: Coherence and CapacityScience, 2000
- Time-Reversed AcousticsScientific American, 1999
- A Mathematical Theory of CommunicationBell System Technical Journal, 1948