Scaling up MIMO: Opportunities and challenges with very large arrays
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 …
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
In complex media such as white paint and biological tissue, light encounters nanoscale
refractive-index inhomogeneities that cause multiple scattering. Such scattering is usually …
refractive-index inhomogeneities that cause multiple scattering. Such scattering is usually …
Focusing beyond the diffraction limit with far-field time reversal
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 …
reversal mirror placed in the far field and a random distribution of scatterers placed in the …
Green wireless communications: A time-reversal paradigm
Green wireless communications have received considerable attention recently in hope of
finding novel solutions to improve energy efficiency for the ubiquity of wireless applications …
finding novel solutions to improve energy efficiency for the ubiquity of wireless applications …
A time-reversal paradigm for indoor positioning system
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 …
scatterers. These multipaths make the indoor positioning problem very challenging. The …
Time-reversal wireless paradigm for green internet of things: An overview
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 …
Internet of Things (IoT). It is shown that the TR technique is a promising technique that …
Theory of electromagnetic time-reversal mirrors
The theory of monochromatic time-reversal mirrors (TRM) or equivalently phase conjugate
mirrors is developed for electromagnetic waves. We start from the fundamental time …
mirrors is developed for electromagnetic waves. We start from the fundamental time …
Detection by time reversal: Single antenna
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 …
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
(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 …
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
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 …
wireless communications due to the paradigm shift that they bring. Indeed, they allow …