Telecommunication Systems Engineering
Telecommunication Systems Engineering
On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Spatial modulation over partially coherent multiple-input/multiple-output channels
IEEE Transactions on Signal Processing
Medium access control for underwater acoustic sensor networks with MIMO links
Proceedings of the 12th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Tones for real: Managing multipath in underwater acoustic wakeup
ACM Transactions on Sensor Networks (TOSN)
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A time reversal mirror (TRM) exploits spatial diversity to achieve spatial and temporal focusing, a useful property for communications in an environment with significant multipath. Temporal focusing (pulse compression) mitigates intersymbol interference (ISI) while spatial focusing enables a straightforward extension to multiple-input/multiple-output (MIMO) communications. Furthermore, the time reversal process can be combined with adaptive channel equalization to remove the residual ISI and compensate for the channel variations, providing nearly optimal performance. At-sea experimental results for MIMO multi-access/multi-user communications demonstrate the effectiveness of time reversal communications in underwater acoustic channels.