Results 21 to 30 of about 536,041 (263)

Duality of antennas and subcarriers in massive MIMO-OFDM downlink system [PDF]

open access: yes, 2015
Massive multiple-input-multiple-output (MIMO) can significantly outperform conventional MIMO in terms of spectrum efficiency and link reliability. For massive MIMO, there are still theoretical and practical issues that have to be addressed.
Bannour, Ahmed, Sun, Yichuang
core   +2 more sources

Proportional Fair MU-MIMO in 802.11 WLANs [PDF]

open access: yes, 2014
We consider the proportional fair rate allocation in an 802.11 WLAN that supports multi-user MIMO (MU-MIMO) transmission by one or more stations. We characterise, for the first time, the proportional fair allocation of MU-MIMO spatial streams and station
Leith, Douglas J., Valls, Víctor
core   +2 more sources

Research on a method of center of spreading spectrum testing deception jamming

open access: yesDianzi Jishu Yingyong, 2021
According to the problem of performance reduction even losing lock for the MIMO system threatened by deception jamming with pseudo-command, this paper presents a technology can test the deception jamming based on central part of spreading spectrum.
An Qiaojing   +5 more
doaj   +1 more source

Capacity and coverage enhancements of MIMO WLANs in realistic environments [PDF]

open access: yes, 2006
Recently, there has been an explosion of growth in research on MIMO systems, but little has been published characterising performance in realistic environments.
Beach, MA   +5 more
core   +2 more sources

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

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 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

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  

Spatial data stream multiplexing scheme for high-throughput WLANs [PDF]

open access: yes, 2008
A novel scheme using spatial data stream multiplexing (SDSM) in the upcoming multiple-input multipleoutput (MIMO)-based IEEE 802.11n physical layer is proposed.
Gravalos, AG   +3 more
core   +1 more source

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