Key challenges, drivers and solutions for mobility management in 5G networks: A survey

I Shayea, M Ergen, MH Azmi, SA Çolak, R Nordin… - IEEE …, 2020 - ieeexplore.ieee.org
Ensuring a seamless connection during the mobility of various User Equipments (UEs) will
be one of the major challenges facing the practical implementation of the Fifth Generation …

MIMO antenna system for multi-band millimeter-wave 5G and wideband 4G mobile communications

E Al Abbas, M Ikram, AT Mobashsher, A Abbosh - IEEE Access, 2019 - ieeexplore.ieee.org
A multiple-input multiple-output (MIMO) antenna system is proposed for fifth generation (5G)
and fourth generation (4G) mobile communication. The design meets all of the requirements …

A compact dual-band and dual-polarized millimeter-wave beam scanning antenna array for 5G mobile terminals

Y He, S Lv, L Zhao, GL Huang, X Chen, W Lin - IEEE Access, 2021 - ieeexplore.ieee.org
This paper presents a compact dual-band and dual-polarized millimeter-wave patch
antenna array with satisfactory performance on element mutual coupling and beam …

Health risks associated with 5G exposure: A view from the communications engineering perspective

L Chiaraviglio, A Elzanaty… - IEEE Open Journal of the …, 2021 - ieeexplore.ieee.org
The deployment of the fifth-generation (5G) wireless communication services requires the
installation of 5G next-generation Node-B Base Stations (gNBs) over the territory and the …

Calculated epithelial/absorbed power density for exposure from antennas at 10–90 GHz: Intercomparison study using a planar skin model

K Li, S Kodera, D Poljak, Y Diao, K Sasaki… - IEEE …, 2023 - ieeexplore.ieee.org
International organizations have collaborated to revise standards and guidelines for human
protection from exposure to electromagnetic fields. In the frequency range of 6–300 GHz, the …

A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications

MA Chung, CW Lin, CW Yang - IEEE Access, 2024 - ieeexplore.ieee.org
The paper proposes a four-directional beamforming switched antenna system based on
Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a …

Intercomparison of calculated incident power density and temperature rise for exposure from different antennas at 10–90 GHz

K Li, Y Diao, K Sasaki, A Prokop, D Poljak… - IEEE …, 2021 - ieeexplore.ieee.org
Recently, international exposure guidelines/standards for human protection from
electromagnetic fields were revised. For frequencies between 6–300 GHz, the permissible …

Digital predistortion of phased-array transmitter with shared feedback and far-field calibration

N Tervo, B Khan, O Kursu, JP Aikio… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Digital predistortion (DPD) of a phased array requires that multiple transmit paths must be
measured by a feedback (FB) receiver (Rx). In this article, we propose an FB concept for …

Quantitative comparison of power densities related to electromagnetic near-field exposures with safety guidelines from 6 to 100 GHz

K Li, K Sasaki, K Wake, T Onishi, S Watanabe - Ieee Access, 2021 - ieeexplore.ieee.org
This paper presents a quantitative analysis of the differences between the various definitions
of spatially averaged power densities () for localized exposure to electromagnetic near-fields …

From 2G to 5G spatial modeling of personal RF-EMF exposure within urban public trams

M Celaya-Echarri, L Azpilicueta, J Karpowicz… - IEEE …, 2020 - ieeexplore.ieee.org
The upcoming design and implementation of the new generation of 5G cellular systems,
jointly with the multiple wireless communication systems that nowadays coexist within …