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 …

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 …

Waveforming: An overview with beamforming

Q Xu, C Jiang, Y Han, B Wang… - … Surveys & Tutorials, 2017 - ieeexplore.ieee.org
By leveraging the natural multipath propagation of electromagnetic waves, waveforming is
proposed as a promising paradigm that treats each multipath component in a wireless …

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 …

Method, apparatus, and systems for wireless event detection and monitoring

Q Xu, F Zhang, C Chen, B Wang, Z Safar… - US Patent …, 2019 - Google Patents
An apparatus for detecting events includes a processor and a storage device storing
instructions that when executed by the processor cause the processor to train a classifier for …

Multiuser time-reversal division multiple access uplink system with parallel interference cancellation

F Han, KJR Liu - US Patent 9,559,874, 2017 - Google Patents
In a time-reversal wireless system, a transceiver receives a combined signal that includes
signals from a plurality of devices, each device sending a signal to the transceiver through …

Time-reversal wireless paradigm for internet of things

Y Chen, H Ma, Y Han, HQ Lai, KJR Liu - US Patent 9,226,304, 2015 - Google Patents
(65) Prior Publication Data(57) ABSTRACT US 2015/0257167 A1 Sep. 10, 2015 A method
of connecting devices to a network is provided. The method includes providing base stations …

Time-reversal wireless systems having asymmetric architecture

F Han, KJR Liu - US Patent 9,882,675, 2018 - Google Patents
In an asymmetric time-reversal wireless system, a base station includes an input circuit
configured to, during a hand-shake period, receive a channel response signal derived from …

Evaluation of time domain propagation measurements of UWB systems using spread spectrum channel sounding

A Dezfooliyan, AM Weiner - IEEE Transactions on Antennas …, 2012 - ieeexplore.ieee.org
Spread spectrum sounding experiments for indoor wireless channel over a frequency band
spanning 2-12 GHz, which exceeds the full FCC UWB band, are reported. Experiments were …

Handshaking protocol for time-reversal system

H Ma, Y Han, Y Chen, Z Safar, F Han… - US Patent 9,313,020, 2016 - Google Patents
A handshaking process for time-reversal wireless communication is provided. A first device
receives a handshake signal transmitted from a second device through multiple propagation …