Cooperative Orbital Angular Momentum Wireless Communications

R Chen, W Cheng, J Lin, L Liang - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high
spectrum-efficiency communications at the same time and frequency by using orthogonal …

Comparison of UCA-OAM and UCA-MIMO systems for sub-THz band line-of-sight spatial multiplexing transmission

GT Gil, JY Lee, H Kim, DH Cho - Journal of Communications …, 2021 - ieeexplore.ieee.org
This paper compares the uniform circular array based orbital angular momentum (UCA-
OAM) scheme, which enables spatial multiplexing transmission of data symbols via multiple …

Generation and beam steering of arbitrary-order OAM with time-modulated circular arrays

R Chen, M Zou, X Wang, A Tennant - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
In contrast to the popular multimode orbital angular momentum (OAM) generation method
that uses uniform circular array combined with phase shifter network, time-modulated …

OAM-based concentric spatial division multiplexing for cellular IoT terminals

R Chen, Z Tian, H Zhou, WX Long - IEEE Access, 2020 - ieeexplore.ieee.org
Internet of Things (IoT) is an emerging network that aims to connect massive devices for
exchanging information with each other. There have been various IoT access techniques …

Generation of hard twisted photons by charged particles in cholesteric liquid crystals

OV Bogdanov, PO Kazinski, PS Korolev, GY Lazarenko - Physical Review E, 2021 - APS
We study the radiation from charged particles crossing a cholesteric plate in the shortwave
approximation when the wavelength of photons is much smaller than the pitch of the …

Statistical model for the weak turbulence-induced attenuation and crosstalk in free space communication systems with orbital angular momentum

Y Pan, P Wang, W Wang, S Li, M Cheng, L Guo - Optics express, 2021 - opg.optica.org
A novel statistical model connected with turbulence strength is proposed to describe the
attenuation and crosstalk in a vortex-based multi-channel free space optical (FSO) …

[HTML][HTML] Machine learning-based signal degradation models for attenuated underwater optical communication OAM beams

PL Neary, AT Watnik, KP Judd, JR Lindle… - Optics Communications, 2020 - Elsevier
Signal attenuation in underwater communications is a problem that degrades classification
performance. Several novel CNN-based (SMART) models are developed to capture the …

The development trends and research fronts in orbital angular momentum technology: A bibliometric analysis

S Memon, X Li, KA Memon, Y Huang… - China …, 2023 - ieeexplore.ieee.org
Orbital angular momentum (OAM) technology, refers to Laguerre-Gaussian (LG) beams,
twisted beams, vector/vortex beams, acoustic vortex beams and fractional vortex beams. It is …

Antiferromagnetic real-space configuration probed by dichroism in scattered x-ray beams with orbital angular momentum

MR McCarter, AIU Saleheen, A Singh, R Tumbleson… - Physical Review B, 2023 - APS
X-ray beams with orbital angular momentum (OAM) are a promising tool for x-ray
characterization techniques. Beams with OAM have a helicity—an azimuthally varying …

Inverse‐Design Methodology for Generating Twisted Ultrasonic Motor in Free Space

C Zhang, J He, X Jiang, D Ta - Advanced Intelligent Systems, 2023 - Wiley Online Library
A new level of freedom is made possible by orbital angular momentum (OAM), which can be
used to create twisted ultrasonic motors for particle manipulation and control. For steady and …