Results 131 to 140 of about 103,779 (270)
5G EMF Exposure at 3.6 GHz in Greece Using Data From Frequency‐Selective Monitoring Sensors
Bioelectromagnetics, Volume 46, Issue 4, May 2025.ABSTRACT The introduction of 5G networks has raised public concerns about potential changes in environmental electromagnetic field (EMF) exposure. This study analyzes continuous monitoring data collected over 2 years (August 2022–October 2024) from 13 frequency‐selective monitoring sensors located in Greece's five largest cities.
Serafeim Iakovidis +3 more
wiley +1 more source
Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System
International Journal of Antennas and Propagation, 2016 The large bandwidth and multipath in millimeter wave (mmWave) cellular system assure the existence of frequency selective channels; it is necessary that mmWave system remains with frequency division multiple access (FDMA) and user scheduling. But for the
Jing Jiang, Deting Kong
doaj +1 more source
MathematicsBreast cancer is a global health concern, emphasizing the need for early detection. However, current mammography struggles to effectively image dense breasts.
Zuoxun Hou +6 more
doaj +1 more source
Comparison of shifted sideband and conventional beamforming techniques [PDF]
, 1979 Ronald A. Mucci, Roger G. Pridham
openalex +1 more source
SensorsThe directional antenna combined with beamforming is one of the attractive solutions to accommodate high data rate applications in 5G vehicle communications.
Jihun Lee, Hun Kim, Jaewoo So
doaj +1 more source
IEEE Access, 2019 The wireless communications is studied for the intelligent connected vehicles (ICV) networks by supporting heterogeneous access with direct access of one vehicle yet the dual-hop access of another vehicle. The dual-hop access is enhanced by one dedicated
Juan Zhao +4 more
doaj +1 more source
Collaborative Relay Beamforming for Secrecy [PDF]
arXiv, 2010 In this paper, collaborative use of relays to form a beamforming system and provide physical-layer security is investigated. In particular, decode-and-forward (DF) and amplify-and-forward (AF) relay beamforming designs under total and individual relay power constraints are studied with the goal of maximizing the secrecy rates when perfect channel state
arxiv
Mixed-signals separation and coda rejection by adaptive beamforming filter [PDF]
, 1978 Wen‐Wu Shen
openalex +1 more source
An extension of maximum entropy beamforming to arbitrary planar arrays with statistics [PDF]
, 1984 R. S. Hebbert, Leha T. Barkakati
openalex +1 more source