Results 1 to 10 of about 14,242 (187)

Subarray 4×4 untuk Antena MIMO 5G dengan Elemen yang Menerapkan Teknik Parasitic

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023
Multiple-input multiple-output (MIMO) merupakan sistem komunikasi nirkabel yang menggunakan banyak antena di sisi pemancar maupun penerima. Sistem ini dapat meningkatkan kualitas komunikasi nirkabel pada jaringan teknologi 5G.
Fitri Amillia   +2 more
doaj   +1 more source

MIMO-GAN: Generative MIMO Channel Modeling

open access: yesICC 2022 - IEEE International Conference on Communications, 2022
Accepted at IEEE ICC 2022. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other ...
Orekondy, Tribhuvanesh   +2 more
openaire   +2 more sources

Study of P-350 cement setting kinetic by nuclear magnetic resonance

open access: yesMateriales de Construccion, 1993
A kinetic study of cement setting process is presented in this paper A new method which allows the microscopic research of the evolution of the cement hydration applied to the study of three P-350 cuban cements is used.
Gabriel L. Duque Fernández   +3 more
doaj   +1 more source

A Compact Band-Notched UWB MIMO Antenna with Enhanced Isolation Using Comb Shaped Decoupling Element [PDF]

open access: yesRadioengineering, 2023
A compact 37mm × 26 mm two element multiple-input-multiple-output (MIMO) antenna is presented for ultra wide band (UWB) system application with band notched characteristics.
S. Chatterjee, S. Rana, R. Sanyal
doaj  

MIMO and Massive MIMO Transmitter Crosstalk [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2020
The effects of hardware-induced crosstalk in MIMO transmitters, subject to nonlinear power amplifier distortion, are considered in this paper. A methodology that provides tractable results and a clear understanding of the effects of crosstalk on transmitter performance is introduced and applied to different transmitter models.
Peter Handel, Daniel Ronnow
openaire   +1 more source

Machine-Learning-Aided Massive Hybrid Analog and Digital MIMO DOA Estimation for Future Wireless Networks [PDF]

open access: yesRadioengineering, 2023
Due to a high spatial angle resolution and low circuit cost of massive hybrid analog and digital (HAD) multiple-input multiple-output (MIMO), it is viewed as a valuable green communication technology for future wireless networks.
X. Zhao   +11 more
doaj  

Non-Uniform Constellations for Polarization Division Multiplexed CO-OFDM Systems [PDF]

open access: yesRadioengineering, 2021
In this paper we propose a~transmission scheme for Coherent Optical Orthogonal Frequency Division Multiplexing (CO-OFDM) systems with Multiple Input - Multiple Output (MIMO) processing.
D. Perez-Calderon   +3 more
doaj  

Cognitive MIMO radio [PDF]

open access: yesIEEE Signal Processing Magazine, 2008
Radio regulatory bodies are recognizing that the rigid spectrum assignment granting exclusive use to licensed services is highly inefficient, due to the high variability of the traffic statistics across time, space, and frequency. Recent Federal Communications Commission (FCC) measurements show that, in fact, the spectrum usage is typically ...
SCUTARI, GESUALDO   +2 more
openaire   +3 more sources

Time-Varying Kelvin Wake Model and Microwave Velocity Observation

open access: yesSensors, 2020
In the synthetic aperture radar (SAR) imaging of ship-induced wakes, it is difficult to obtain the Doppler velocity of a Kelvin wake due to the lack of time-varying wake models and suitable radar equipment.
Jie Niu, Xingdong Liang, Xin Zhang
doaj   +1 more source

Wireless MIMO switching [PDF]

open access: yes2012 IEEE Global Communications Conference (GLOBECOM), 2012
In a generic switching problem, a switching pattern consists of a one-to-one mapping from a set of inputs to a set of outputs (i.e., a permutation). We propose and investigate a wireless switching framework in which a multi-antenna relay is responsible for switching traffic among a set of $N$ stations. We refer to such a relay as a MIMO switch.
Wang, Fanggang, Liew, Soung Chang
openaire   +2 more sources

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