An optimization framework for RIS-based energy-efficient multi-cell NOMA systems

AA Salem, AS Ibrahim, MH Ismail - Vehicular Communications, 2023 - Elsevier
Non-orthogonal multiple access (NOMA) is a highly promising multiple access strategy for
wideband communication systems due to its high spectral efficiency. However, in multi-cell …

GSIC for RIS-aided uplink multi-antenna NOMA systems

H Wang, C Liu, Z Shi, Y Fu… - IEEE Communications …, 2021 - ieeexplore.ieee.org
The combination of non-orthogonal multiple access (NOMA) and reconfigurable intelligent
surface (RIS) is capable of boosting spectrum and energy efficiency for future …

Sum rate maximization for active RIS-aided uplink multi-antenna NOMA systems

X Yang, H Wang, Y Feng - IEEE Wireless Communications …, 2023 - ieeexplore.ieee.org
Both reconfigurable intelligent surface (RIS) and non-orthogonal multiple access (NOMA)
are treated as promising technologies for future wireless communications. However, the …

Optimization for Multi-Cell NOMA Systems Assisted by Multi-RIS with Inter-RIS Reflection

L Liu, B Li, W Wu, H Wang… - IEEE Communications …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) and non-orthogonal multiple access (NOMA) are
two promising technologies in future communication systems. The integration between RIS …

Spectral and energy efficient user pairing for RIS-assisted uplink NOMA systems with imperfect phase compensation

PK Priya, MP Reddy, A Kumar - 2022 IEEE 95th Vehicular …, 2022 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is considered a key technology for improving the
spectral efficiency of fifth-generation (5G) and beyond 5G cellular networks. NOMA is …

Reconfigurable intelligent surface empowered downlink non-orthogonal multiple access

M Fu, Y Zhou, Y Shi, KB Letaief - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Power-domain non-orthogonal multiple access (NOMA) has become a promising
technology to exploit the new dimension of the power domain to enhance the spectral …

RIS-assisted NOMA with interference-cancellation and interference-alignment scheme

BYD Rito, KH Li - IEEE Communications Letters, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a cost-effective method to enhance the end-to-
end wireless channel. Meanwhile, Non-Orthogonal Multiple Access (NOMA) improves the …

Load coupling and energy optimization in multi-cell and multi-carrier NOMA networks

L Lei, L You, Y Yang, D Yuan… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
In this paper, we investigate energy optimization in multi-cell and multi-carrier non-
orthogonal multiple access (NOMA) networks. We apply a load-coupling model for NOMA …

Multiple RIS-Assisted Cooperative NOMA with User Selection

M Samy, AIH Hayder, S Kisseleff… - … 2023-2023 IEEE …, 2023 - ieeexplore.ieee.org
This paper proposes a novel transmission scheme that leverages the synergistic benefits of
multiple reconfigurable intelligent surfaces (RISs) and cooperative non-orthogonal multi-ple …

A novel NOMA solution with RIS partitioning

A Khaleel, E Basar - IEEE Journal of Selected Topics in Signal …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) empowered communications with non-orthogonal
multiple access (NOMA) has recently become an appealing research direction for next …