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 …

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 …

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 …

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 …

Task-oriented multi-user semantic communications

H Xie, Z Qin, X Tao, KB Letaief - IEEE Journal on Selected …, 2022 - ieeexplore.ieee.org
While semantic communications have shown the potential in the case of single-modal single-
users, its applications to the multi-user scenario remain limited. In this paper, we investigate …

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 …

Massive MIMO systems for 5G and beyond networks—overview, recent trends, challenges, and future research direction

R Chataut, R Akl - Sensors, 2020 - mdpi.com
The global bandwidth shortage in the wireless communication sector has motivated the
study and exploration of wireless access technology known as massive Multiple-Input …

Towards smart and reconfigurable environment: Intelligent reflecting surface aided wireless network

Q Wu, R Zhang - IEEE communications magazine, 2019 - ieeexplore.ieee.org
IRS is a new and revolutionizing technology that is able to significantly improve the
performance of wireless communication networks, by smartly reconfiguring the wireless …

Accessing from the sky: A tutorial on UAV communications for 5G and beyond

Y Zeng, Q Wu, R Zhang - Proceedings of the IEEE, 2019 - ieeexplore.ieee.org
Unmanned aerial vehicles (UAVs) have found numerous applications and are expected to
bring fertile business opportunities in the next decade. Among various enabling …

Multiple access for near-field communications: SDMA or LDMA?

Z Wu, L Dai - IEEE Journal on Selected Areas in …, 2023 - ieeexplore.ieee.org
Spatial division multiple access (SDMA) is essential to improve the spectrum efficiency for
multi-user multiple-input multiple-output (MIMO) communications. The classical SDMA for …