Results 51 to 60 of about 613,083 (218)

Multisegment Mapping Network for Massive MIMO Detection

open access: yesInternational Journal of Antennas and Propagation, 2021
The massive multiple-input multiple-output (MIMO) technology is one of the core technologies of 5G, which can significantly improve spectral efficiency.
Yongzhi Yu, Jianming Wang, Limin Guo
doaj   +1 more source

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

open access: yesIEEE 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   +3 more
doaj   +1 more source

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

open access: yesLaser &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   +5 more
wiley   +1 more source

EVM Prediction for Massive MIMO [PDF]

open access: yes2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2019
Signal to interference plus noise ratio (SINR) is a widely common performance metric used in the majority of massive multiple-input, multiple-output (Ma-MIMO) research. This metric requires prior knowledge of the user channel vectors and the interference caused by inaccurate channel state information (CSI).
Wael Boukley Hasan   +3 more
openaire   +3 more sources

Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation

open access: yesInternational Journal of Antennas and Propagation, 2014
Massive multi-input multioutput (MIMO) is a promising technique for the next generation of wireless communication networks. In this paper, we focus on using the ray-launching based channel simulation to model massive MIMO channels.
Jialai Weng   +4 more
doaj   +1 more source

Ubiquitous cell-free Massive MIMO communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
Since the first cellular networks were trialled in the 1970s, we have witnessed an incredible wireless revolution. From 1G to 4G, the massive traffic growth has been managed by a combination of wider bandwidths, refined radio interfaces, and network ...
Giovanni Interdonato   +4 more
doaj   +1 more source

Cell-Free Massive MIMO with Energy-Efficient Downlink Operation in Industrial IoT

open access: yesMathematics, 2022
Cell-free massive Multi-input Multi-output (MIMO) can offer higher spectral efficiency compared with cellular massive MIMO by providing services to users through the collaboration of distributed APs, and cell-free massive MIMO systems with distributed ...
Xiaomin Chen   +4 more
doaj   +1 more source

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

open access: yesInternational 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   +1 more
wiley   +1 more source

Linear Precoding With Low-Resolution DACs for Massive MU-MIMO-OFDM Downlink

open access: yes, 2019
We consider the downlink of a massive multiuser (MU) multiple-input multiple-output (MIMO) system in which the base station (BS) is equipped with low-resolution digital-to-analog converters (DACs). In contrast to most existing results, we assume that the
Durisi, Giuseppe,   +7 more
core   +1 more source

A Simulation Framework for Multiple-Antenna Terminals in 5G Massive MIMO Systems

open access: yesIEEE Access, 2017
The recent interest in massive multiple in multiple out (MIMO) has spurred intensive work on massive MIMO channel modeling in the contemporary literature. However, current models fail to take the characteristics of terminal antennas into account.
Erik L. Bengtsson   +5 more
doaj   +1 more source

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