Results 1 to 10 of about 4,625,198 (299)

Spectral Efficiency Improvement Using Bi-Deep Learning Model for IRS-Assisted MU-MISO Communication System [PDF]

open access: yesSensors, 2023
The intelligent reflecting surface (IRS) is a two-dimensional (2D) surface with a programmable structure and is composed of many arrays. The arrays are used to supervise electromagnetic wave propagation by altering the electric and magnetic properties of
Md Abdul Aziz   +5 more
doaj   +2 more sources

Cognitive Radio with Machine Learning to Increase Spectral Efficiency in Indoor Applications on the 2.5 GHz Band [PDF]

open access: yesSensors, 2023
Due to the propagation characteristics in the 2.5 GHz band, the signal is significantly degraded by building entry loss (BEL), making coverage in indoor environments in some cases non-existent.
Marilson Duarte Soares   +2 more
doaj   +2 more sources

Experimental evaluation of spectral efficiency from a circular array antenna producing a Laguerre–Gauss mode [PDF]

open access: yesRoyal Society Open Science, 2020
We present the four-dimensional volumetric electromagnetic field measurements (x, y, z and frequency) of the complex radiated field produced by an 8-element circular antenna array.
Ben Allen   +2 more
doaj   +2 more sources

Spectral Efficiency Augmentation in Uplink Massive MIMO Systems by Increasing Transmit Power and Uniform Linear Array Gain [PDF]

open access: yesSensors, 2020
Improved Spectral Efficiency (SE) is a prominent feature of Massive Multiple-Input and Multiple-Output systems. These systems are prepared with antenna clusters at receiver (Rx) and transmitter (Tx).
Jehangir Arshad   +4 more
doaj   +2 more sources

ESTIMATION OF POTENTIAL PARAMETERS FOR 5G MOBILE NETWORKS RADIOCHANNELS

open access: yesInformation and Telecommunication Sciences, 2023
Background. Deploying of 5G mobile networks opens up wide opportunities for the development of IoT, high-speed access to Internet services, industrial automation, telemedicine and other modern services.
Ігор Березовський   +1 more
doaj   +1 more source

Analysis of the Capacity, Spectral Efficiency and Probability of Outage of Adaptive Mobile Channel for WiMAX System [PDF]

open access: yesEngineering and Technology Journal, 2014
This paper presents an analysis of the channel capacity, spectral efficiency and probability of outage for the 4th generation adaptive modulation ofWiMAX system.
Hadi T. Ziboon, Wasan S. Rasheed
doaj   +1 more source

Deep Learning-Based Power Control Scheme With Partial Channel Information in Overlay Device-to-Device Communication Systems

open access: yesIEEE Access, 2021
In the overlay device-to-device (D2D) communication systems, transmit power control is critical to better manage interference, so that the sum rate is maximized.
Donghyeon Kim, Haejoon Jung, In-Ho Lee
doaj   +1 more source

Performance Enhancement of MmWave MIMO Systems Using Deep Learning Framework

open access: yesIEEE Access, 2021
In order to obtain beamforming gains and prevent high pathloss in millimeter wave (mmWave) systems, large number of antennas is employed. Digital precoders are difficult to implement with many antennas because of hardware constraints, while analog ...
Osama S. Faragallah   +2 more
doaj   +1 more source

Optimizing the Shape of Faster-Than-Nyquist (FTN) Signals With the Constraint on Energy Concentration in the Occupied Frequency Bandwidth

open access: yesIEEE Access, 2020
The achievement of the boundary values of spectral efficiency is associated with the development of methods for generating and receiving signals with a compact spectrum. The reason is a constant increase in the capacity of existing communication channels
Sergey B. Makarov   +6 more
doaj   +1 more source

Evaluation of Cell-Free Millimeter-Wave Massive MIMO Systems Based on Site-Specific Ray Tracing Simulations

open access: yesIEEE Access, 2022
Ultra densification of the number of antennas combined with the use of large bandwidths in the millimeter wave (mmWave) spectrum is considered one of the main methodologies to achieve the quality of service requirements for future generations of wireless
P. Higo Thaian da Silva   +4 more
doaj   +1 more source

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