User-centric cell-free massive MIMO networks: A survey of opportunities, challenges and solutions

HA Ammar, R Adve, S Shahbazpanahi… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
Densification of network base stations is indispensable to achieve the stringent Quality of
Service (QoS) requirements of future mobile networks. However, with a dense deployment of …

A tutorial on mathematical modeling of 5G/6G millimeter wave and terahertz cellular systems

D Moltchanov, E Sopin, V Begishev… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
Millimeter wave (mmWave) and terahertz (THz) radio access technologies (RAT) are
expected to become a critical part of the future cellular ecosystem providing an abundant …

Mobility support for millimeter wave communications: Opportunities and challenges

J Li, Y Niu, H Wu, B Ai, S Chen, Z Feng… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
Millimeter-wave (mmWave) communication technology offers a potential and promising
solution to support 5G and B5G wireless networks in dynamic scenarios and applications …

5G frequency standardization, technologies, channel models, and network deployment: Advances, challenges, and future directions

YO Imam-Fulani, N Faruk, OA Sowande, A Abdulkarim… - Sustainability, 2023 - mdpi.com
The rapid increase in data traffic caused by the proliferation of smart devices has spurred the
demand for extremely large-capacity wireless networks. Thus, faster data transmission rates …

Multi-connectivity for 5G networks and beyond: A survey

T Sylla, L Mendiboure, S Maaloul, H Aniss, MA Chalouf… - Sensors, 2022 - mdpi.com
To manage a growing number of users and an ever-increasing demand for bandwidth,
future 5th Generation (5G) cellular networks will combine different radio access technologies …

The impact of multi-connectivity and handover constraints on millimeter wave and terahertz cellular networks

MF Özkoç, A Koutsaftis, R Kumar, P Liu… - IEEE Journal on …, 2021 - ieeexplore.ieee.org
Wireless communication over terahertz (THz) frequency bands is envisioned as the key
enabler of many applications and services offered in 6G networks. The abundantly available …

Capacity of multiconnectivity mmWave systems with dynamic blockage and directional antennas

M Gerasimenko, D Moltchanov… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
The challenges of millimeter-wave (mmWave) radio propagation in dense crowded
environments require dynamic re-associations between the available access points (APs) to …

User association and multi-connectivity strategies in joint terahertz and millimeter wave 6G systems

E Sopin, D Moltchanov, A Daraseliya… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Terahertz (THz) wireless access is considered as a next step towards 6G cellular systems.
By utilizing even higher frequency bands than 5G millimeter wave (mmWave) New Radio …

Quantifying the impact of guard capacity on session continuity in 3GPP new radio systems

V Begishev, D Moltchanov, E Sopin… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Dynamic blockage of millimeter-wave (mmWave) radio propagation paths by dense moving
crowds calls for advanced techniques to preserve session continuity in the emerging New …

Spectrum allocation with adaptive sub-band bandwidth for terahertz communication systems

A Shafie, N Yang, SA Alvi, C Han… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
We study spectrum allocation for terahertz (THz) band communication (THzCom) systems,
while considering the frequency and distance-dependent nature of THz channels. Different …