Results 31 to 40 of about 637,438 (171)

Quantized Precoding for Massive MU-MIMO

, 2017
Massive multiuser (MU) multiple-input multiple-output (MIMO) is foreseen to be one of the key technologies in fifth-generation wireless communication systems.
Sven Jacobsson, Giuseppe Durisi, Goldstein, Tom, Christoph Studer, Studer, Christoph, Coldrey, Mikael, Tom Goldstein, Mikael Coldrey, Jacobsson, Sven, Durisi, Giuseppe, Durisi, Giuseppe,, Studer, Christoph; id_orcid, Goldstein, Tom,, Jacobsson, Sven,, Studer, Christoph,, Coldrey, Mikael,   +15 more
core   +1 more source

Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]

, 2015
A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya, Chen, Sheng, Kadir, Mohammad Ismat, Hanzo, Lajos   +3 more
core   +1 more source

An efficient multi‐probe enabled midfield over‐the‐air test method for 5G base station antenna pattern reconstruction

Electronics Letters
With the accelerated deployment of 5G massive multi‐input multi‐output (MIMO)‐structured base stations (BSs), accurate and efficient testing of massive MIMO arrays is essential to ensure that the 5G massive MIMO antenna array can perform as expected. The
Xudong An, Yiwen Wang, Qinjuan Zhang, Weimin Wang, Yuanan Liu   +4 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Μελέτη και προσομοίωση τεχνικών Massive MIMO σε δίκτυα νέας γενιάς

, 2022
Το Massive multiple-input multiple-output (MIMO) είναι μια από τις πιο υποσχόμενες τεχνολογίες για την επόμενη γενιά ασύρματων δικτύων επικοινωνίας, επειδή έχει τη δυνατότητα να προσφέρει βελτιώσεις στη φασματική απόδοση (SE) και την ενεργειακή απόδοση ...
Θεοχαρίδης, Χρήστος
core  

Performance Analysis and Power Control of Cell-Free Massive MIMO Systems With Hardware Impairments

IEEE Access, 2018
As an interesting network architecture for future wireless communication systems, cellfree (CF) massive multiple-input multiple-output (MIMO) distributes an excess number of access points (APs) with single or multiple antennas to cooperatively ...
Jiayi Zhang, Yinghua Wei, Emil Bjornson, Yu Han, Shi Jin   +4 more
doaj   +1 more source

Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets

Laser &Photonics Reviews, EarlyView.
Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier, Khaleda Mallick, Abhinand Venugopalan, Milind Bagul, Gouri Krishnan, Thomas Schneider   +5 more
wiley   +1 more source

Design Parameters for Massive Communication Systems Under Energy-Efficient Polynomial Precoder

IEEE Access, 2022
Massive multiple-input multiple output (MIMO) systems have been introduced as a resolution for next generation cellular systems. The complexity of computing the precoding in massive MIMO is increased.
Mohamed G. El-Mashed, Fahad Alraddady, Fahd Aldosari, Osama S. Faragallah   +3 more
doaj   +1 more source

Dynamic Performance Enhancement of a High‐Agility Hypersonic Mechanical System via a Learning‐Augmented Robust Control Architecture

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori, Seyed Hossein Sadati   +1 more
wiley   +1 more source

1-bit Massive MU-MIMO Precoding in VLSI

, 2017
Massive multi-user (MU) multiple-input multiple-output (MIMO) will be a core technology in fifth-generation (5G) wireless systems as it offers significant improvements in spectral efficiency compared to existing multi-antenna technologies.
Goldstein, T., Studer, C., Giuseppe Durisi, Goldstein, Tom, Goldstein, T.,, Durisi, Giuseppe,, Studer, Christoph; id_orcid, Coldrey, Mikael, Castaneda, Oscar,, Durisi, Giuseppe, Castaneda, Oscar, Jacobsson, Sven,, Coldrey, M., Sven Jacobsson, Christoph Studer, Studer, Christoph, Studer, Christoph,, Oscar Castaneda, Castaneda, O., Tom Goldstein, Jacobsson, Sven, Mikael Coldrey, Castañeda Fernández, Oscar; id_orcid, Coldrey, Mikael,   +23 more
core   +1 more source