Reconfigurable intelligent surfaces: Principles and opportunities

Y Liu, X Liu, X Mu, T Hou, J Xu… - … surveys & tutorials, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces
(IRSs), or large intelligent surfaces (LISs), 1 have received significant attention for their …

A survey on non-orthogonal multiple access for 5G networks: Research challenges and future trends

Z Ding, X Lei, GK Karagiannidis… - IEEE Journal on …, 2017 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is an essential enabling technology for the fifth-
generation (5G) wireless networks to meet the heterogeneous demands on low latency, high …

Evolution of NOMA toward next generation multiple access (NGMA) for 6G

Y Liu, S Zhang, X Mu, Z Ding, R Schober… - IEEE Journal on …, 2022 - ieeexplore.ieee.org
Due to the explosive growth in the number of wireless devices and diverse wireless
services, such as virtual/augmented reality and Internet-of-Everything, next generation …

Non-orthogonal multiple access assisted federated learning via wireless power transfer: A cost-efficient approach

Y Wu, Y Song, T Wang, L Qian… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Federated learning (FL) has been considered as a promising paradigm for enabling
distributed training/learning in many machine-learning services without revealing users' …

Machine learning empowered trajectory and passive beamforming design in UAV-RIS wireless networks

X Liu, Y Liu, Y Chen - IEEE Journal on Selected Areas in …, 2020 - ieeexplore.ieee.org
A novel framework is proposed for integrating reconfigurable intelligent surfaces (RIS) in
unmanned aerial vehicle (UAV) enabled wireless networks, where an RIS is deployed for …

Exploiting intelligent reflecting surfaces in NOMA networks: Joint beamforming optimization

X Mu, Y Liu, L Guo, J Lin… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This paper investigates a downlink multiple-input single-output intelligent reflecting surface
(IRS) aided non-orthogonal multiple access (NOMA) system, where a base station (BS) …

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 …

A systematic review on NOMA variants for 5G and beyond

I Budhiraja, N Kumar, S Tyagi, S Tanwar, Z Han… - IEEE …, 2021 - ieeexplore.ieee.org
Over the last few years, interference has been a major hurdle for successfully implementing
various end-user applications in the fifth-generation (5G) of wireless networks. During this …

Reconfigurable intelligent surface aided NOMA networks

T Hou, Y Liu, Z Song, X Sun, Y Chen… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) constitute a promising performance enhancement
for next-generation (NG) wireless networks in terms of enhancing both their spectral …

Residual transceiver hardware impairments on cooperative NOMA networks

X Li, J Li, Y Liu, Z Ding… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This paper investigates the impact of residual transceiver hardware impairments (RTHIs) on
cooperative non-orthogonal multiple access (NOMA) networks, where generic fading …