Results 81 to 90 of about 25,769 (204)

Enhancing CNN Path Loss Estimation Performance using Satellite Image and Distance Feature

IET Communications, Volume 20, Issue 1, January/December 2026.
Fine‐tuning a pretrained VGG‐16 accommodates efficient model retraining. Including distance feature improves path loss (PL) estimation accuracy and efficiency. The distance information is best supplied in a form in line with the empirical PL model. ABSTRACT We employ convolutional neural networks (CNNs) with distance feature and satellite image for ...
Renata Nur Afifah, Irma Zakia
wiley   +1 more source

Physical layer authentication for 5G/6G millimeter wave communications by using channel sparsity

IET Communications, 2022
This paper proposes a comprehensive study for the physical layer channel based authentication (PLA) designs in mmWave communications, which reveals the principles that how does the sparse properties of mmWave channel can benefit the PLA designs and ...
Jie Tang, Hong Wen, Huanhuan Song
doaj   +1 more source

On Low-Resolution ADCs in Practical 5G Millimeter-Wave Massive MIMO Systems

, 2018
Nowadays, millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems is a favorable candidate for the fifth generation (5G) cellular systems.
Dai, Lnglong, Hanzo, Lajos, Li, Xu, Liu, Ying, Zhang, Jiayi   +4 more
core   +1 more source

Hyperparameter‐Free Maximum Versoria Criterion Based Channel‐State Acquisition for mmWave Hybrid MIMO With Hardware Impairments

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses channel estimation in mmWave (millimetre wave) hybrid MIMO (multiple‐input multiple‐output) systems impaired by residual transceiver hardware nonidealities, modelled as additive non‐Gaussian noise via Bussgang decomposition. A hyperparameter‐free maximum Versoria criterion (MVC)‐based channel estimator is proposed, featuring a ...
Rangeet Mitra, Sandesh Jain, K. Venkateswaran, Rajat Kumar, Vimal Bhatia, Ondrej Krejcar   +5 more
wiley   +1 more source

Graphene-based beam-reconfigurable liquid antenna for 5G mmWave wireless systems

Frontiers in Communications and Networks
The advancement of wireless technologies has led to significant progress in antenna design in order to meet the continuously increasing demands. Liquid antennas have gained significant interest in research owing to their distinctive properties, such as ...
Sasmita Dash, Constantinos Psomas, Ioannis Krikidis   +2 more
doaj   +1 more source

Generative Adversarial Estimation of Channel Covariance in Vehicular Millimeter Wave Systems

, 2018
Enabling highly-mobile millimeter wave (mmWave) systems is challenging because of the huge training overhead associated with acquiring the channel knowledge or designing the narrow beams.
Alkhateeb, Ahmed, Li, Xiaofeng, Tepedelenlioğlu, Cihan   +2 more
core   +1 more source

Near‐Field 3D Stochastic Channel Modelling and Performance Analysis for Cooperative STAR‐RIS Systems With Cylindrical Transmit Arrays

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper develops a near‐field three‐dimensional geometry‐based stochastic channel model for cooperative STAR‐RIS systems equipped with cylindrical transmit arrays at the base station. The proposed model captures spherical wavefront propagation effects and coupled azimuth‐elevation characteristics under realistic near‐field conditions.
Antwi Owusu Agyeman, Tweneboah‐Koduah Samuel, Ruhiya Abubakar, Martin Alabi Mensah, Emmanuel Atebawone, Anim Frederick Oturoku   +5 more
wiley   +1 more source

Energy‐Efficient Element Selection in RIS‐Assisted Backscatter Communication Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper investigates energy‐efficient reconfigurable intelligent surface (RIS) assisted ambient backscatter communication systems with energy‐harvesting tags. A low‐complexity RIS element selection strategy is developed to satisfy both energy‐harvesting and signal‐to‐interference‐plus‐noise ratio constraints while minimizing overall power ...
Mengistu A. Mulatu, Thembelihle Dlamini, Asrat M. Beyene   +2 more
wiley   +1 more source

Millimeter Wave Energy Absorption by Human Tissues: Evaluation of Tissue Penetration [PDF]

Iranian Journal of Electrical and Electronic Engineering
Presented in this paper is an evaluation of human tissue penetration by millimeter wave (mmW) energy, particularly at 30, 35, 40 and 45 GHz. Numerical simulations show that the penetration depths in the tissue are (0.1000, 0.0937, 0.08869 and 0.08882) mm
Godday Biowei, Sulaiman Adeniyi Adekola, Kamoli Akinwale Amusa   +2 more
doaj  

mmWave-RM: A Respiration Monitoring and Pattern Classification System Based on mmWave Radar

Sensors
Breathing is one of the body’s most basic functions and abnormal breathing can indicate underlying cardiopulmonary problems. Monitoring respiratory abnormalities can help with early detection and reduce the risk of cardiopulmonary diseases. In this study, a 77 GHz frequency-modulated continuous wave (FMCW) millimetre-wave (mmWave) radar was used to ...
Zhanjun Hao 0001, Yue Wang, Fenfang Li, Guozhen Ding, Yifei Gao   +4 more
openaire   +3 more sources