Scaling up MIMO: Opportunities and challenges with very large arrays

F Rusek, D Persson, BK Lau… - IEEE signal …, 2012 - ieeexplore.ieee.org
Multiple-input multiple-output (MIMO) technology is maturing and is being incorporated into
emerging wireless broadband standards like long-term evolution (LTE)[1]. For example, the …

Controlling waves in space and time for imaging and focusing in complex media

AP Mosk, A Lagendijk, G Lerosey, M Fink - Nature photonics, 2012 - nature.com
In complex media such as white paint and biological tissue, light encounters nanoscale
refractive-index inhomogeneities that cause multiple scattering. Such scattering is usually …

Focusing beyond the diffraction limit with far-field time reversal

G Lerosey, J De Rosny, A Tourin, M Fink - Science, 2007 - science.org
We present an approach for subwavelength focusing of microwaves using both a time-
reversal mirror placed in the far field and a random distribution of scatterers placed in the …

Green wireless communications: A time-reversal paradigm

B Wang, Y Wu, F Han, YH Yang… - IEEE Journal on …, 2011 - ieeexplore.ieee.org
Green wireless communications have received considerable attention recently in hope of
finding novel solutions to improve energy efficiency for the ubiquity of wireless applications …

A time-reversal paradigm for indoor positioning system

ZH Wu, Y Han, Y Chen, KJR Liu - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
In an indoor environment, there commonly exist a large number of multipaths due to rich
scatterers. These multipaths make the indoor positioning problem very challenging. The …

Time-reversal wireless paradigm for green internet of things: An overview

Y Chen, F Han, YH Yang, H Ma, Y Han… - IEEE Internet of …, 2014 - ieeexplore.ieee.org
In this paper, we present an overview of the time-reversal (TR) wireless paradigm for green
Internet of Things (IoT). It is shown that the TR technique is a promising technique that …

Theory of electromagnetic time-reversal mirrors

J De Rosny, G Lerosey, M Fink - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
The theory of monochromatic time-reversal mirrors (TRM) or equivalently phase conjugate
mirrors is developed for electromagnetic waves. We start from the fundamental time …

Detection by time reversal: Single antenna

JMF Moura, Y ** - IEEE transactions on signal processing, 2006 - ieeexplore.ieee.org
This paper studies the binary hypothesis test of detecting the presence or absence of a
target in a highly cluttered environment by using time reversal. In time reversal, the …

Wireless signals and techniques for determining locations of objects in multi-path environments

Y Chen, ZH Wu, Y Han, KJR Liu - US Patent 10,168,414, 2019 - Google Patents
(57) ABSTRACT A time-reversal positioning system includes a storage stor ing first data
representing channel impulse responses derived from probe signals sent from a plurality of …

Wavefront sha** for wireless communications in complex media: From time reversal to reconfigurable intelligent surfaces

G Lerosey, M Fink - Proceedings of the IEEE, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are gaining huge momentum in the field of
wireless communications due to the paradigm shift that they bring. Indeed, they allow …