On the road to 6G: Visions, requirements, key technologies, and testbeds

CX Wang, X You, X Gao, X Zhu, Z Li… - … Surveys & Tutorials, 2023 - ieeexplore.ieee.org
Fifth generation (5G) mobile communication systems have entered the stage of commercial
deployment, providing users with new services, improved user experiences as well as a host …

Holographic MIMO communications: Theoretical foundations, enabling technologies, and future directions

T Gong, P Gavriilidis, R Ji, C Huang… - … Surveys & Tutorials, 2023 - ieeexplore.ieee.org
Future wireless systems are envisioned to create an endogenously holography-capable,
intelligent, and programmable radio propagation environment, that will offer unprecedented …

5G-advanced toward 6G: Past, present, and future

W Chen, X Lin, J Lee, A Toskala, S Sun… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
Since the start of 5G work in 3GPP in early 2016, tremendous progress has been made in
both standardization and commercial deployments. 3GPP is now entering the second phase …

Integrated sensing and communications: Toward dual-functional wireless networks for 6G and beyond

F Liu, Y Cui, C Masouros, J Xu, TX Han… - IEEE journal on …, 2022 - ieeexplore.ieee.org
As the standardization of 5G solidifies, researchers are speculating what 6G will be. The
integration of sensing functionality is emerging as a key feature of the 6G Radio Access …

6G wireless communications networks: A comprehensive survey

M Alsabah, MA Naser, BM Mahmmod… - Ieee …, 2021 - ieeexplore.ieee.org
The commercial fifth-generation (5G) wireless communications networks have already been
deployed with the aim of providing high data rates. However, the rapid growth in the number …

Channel estimation for extremely large-scale MIMO: Far-field or near-field?

M Cui, L Dai - IEEE transactions on communications, 2022 - ieeexplore.ieee.org
Extremely large-scale multiple-input-multiple-output (XL-MIMO) is promising to meet the
high rate requirements for future 6G. To realize efficient precoding, accurate channel state …

Five facets of 6G: Research challenges and opportunities

LH Shen, KT Feng, L Hanzo - ACM Computing Surveys, 2023 - dl.acm.org
While the fifth-generation systems are being rolled out across the globe, researchers have
turned their attention to the exploration of radical next-generation solutions. At this early …

Cell-free massive MIMO: A survey

S Elhoushy, M Ibrahim… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
Towards a fully connected intelligent digital world, 5G and beyond networks experience a
new era of Internet of intelligence with connected people and things. This new era brings …

Terahertz wireless channels: A holistic survey on measurement, modeling, and analysis

C Han, Y Wang, Y Li, Y Chen… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
Terahertz (0.1-10 THz) communications are envisioned as a key technology for sixth
generation (6G) wireless systems. The study of underlying THz wireless propagation …

Utilization of 5G technologies in IoT applications: Current limitations by interference and network optimization difficulties—A review

M Pons, E Valenzuela, B Rodríguez, JA Nolazco-Flores… - Sensors, 2023 - mdpi.com
5G (fifth-generation technology) technologies are becoming more mainstream thanks to
great efforts from telecommunication companies, research facilities, and governments. This …