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 …

A survey of non-orthogonal multiple access for 5G

L Dai, B Wang, Z Ding, Z Wang… - … surveys & tutorials, 2018 - ieeexplore.ieee.org
In the fifth generation (5G) of wireless communication systems, hitherto unprecedented
requirements are expected to be satisfied. As one of the promising techniques of addressing …

Grant-free non-orthogonal multiple access for IoT: A survey

MB Shahab, R Abbas… - … Surveys & Tutorials, 2020 - ieeexplore.ieee.org
Massive machine-type communications (mMTC) is one of the main three focus areas in the
5th generation (5G) of wireless communications technologies to enable connectivity of a …

Nonorthogonal multiple access for 5G and beyond

Y Liu, Z Qin, M Elkashlan, Z Ding… - Proceedings of the …, 2017 - ieeexplore.ieee.org
Driven by the rapid escalation of the wireless capacity requirements imposed by advanced
multimedia applications (eg, ultrahigh-definition video, virtual reality, etc.), as well as the …

Power-domain non-orthogonal multiple access (NOMA) in 5G systems: Potentials and challenges

SMR Islam, N Avazov, OA Dobre… - … Surveys & Tutorials, 2016 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is one of the promising radio access techniques for
performance enhancement in next-generation cellular communications. Compared to …

Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends

L Dai, B Wang, Y Yuan, S Han… - IEEE …, 2015 - ieeexplore.ieee.org
The increasing demand of mobile Internet and the Internet of Things poses challenging
requirements for 5G wireless communications, such as high spectral efficiency and massive …

Dynamic user clustering and power allocation for uplink and downlink non-orthogonal multiple access (NOMA) systems

MS Ali, H Tabassum, E Hossain - IEEE access, 2016 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) has recently been considered as a key enabling
technique for 5G cellular systems. In NOMA, by exploiting the channel gain differences …

Modulation and multiple access for 5G networks

Y Cai, Z Qin, F Cui, GY Li… - … Surveys & Tutorials, 2017 - ieeexplore.ieee.org
Fifth generation (5G) wireless networks face various challenges in order to support large-
scale heterogeneous traffic and users, therefore new modulation and multiple access (MA) …

Cooperative non-orthogonal multiple access with simultaneous wireless information and power transfer

Y Liu, Z Ding, M Elkashlan… - IEEE Journal on Selected …, 2016 - ieeexplore.ieee.org
In this paper, the application of simultaneous wireless information and power transfer
(SWIPT) to nonorthogonal multiple access (NOMA) networks in which users are spatially …

A general power allocation scheme to guarantee quality of service in downlink and uplink NOMA systems

Z Yang, Z Ding, P Fan… - IEEE transactions on …, 2016 - ieeexplore.ieee.org
In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink
non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting …