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 …

RIS-Empowered Relays for Cooperative NOMA

M Samy, H Al-Hraishawi, K Ntontin… - 2024 IEEE Wireless …, 2024 - ieeexplore.ieee.org
To harness the benefits of non-orthogonal multiple access (NOMA) and reconfigurable
intelligent surfaces (RISs), we propose a novel RIS-empowered decode-and-forward (RIS …

Reconfigurable intelligent surface assisted coordinated multipoint in downlink NOMA networks

M Elhattab, MA Arfaoui, C Assi… - IEEE Communications …, 2020 - ieeexplore.ieee.org
In this letter, we investigate the amalgamation between the reconfigurable intelligent surface
(RIS) technology and the joint transmission coordinated multipoint (JT-CoMP) in order to …

Cooperative NOMA with incremental relaying: Performance analysis and optimization

G Li, D Mishra, H Jiang - IEEE Transactions on Vehicular …, 2018 - ieeexplore.ieee.org
In conventional cooperative non-orthogonal multiple access (NOMA) networks, spectral
efficiency loss occurs due to a half-duplex constraint. To address this issue, we propose an …

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 …

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 …

Utilization of max-min user relay in cooperative NOMA systems

NS Kim - Journal of Telecommunication, Electronic and …, 2018 - jtec.utem.edu.my
Non-orthogonal multiple access (NOMA) has been focused to increase system capacity and
spectral efficiency for the fifth generation (5G) mobile networks. In order to improve the …

Performance analysis of a hybrid downlink-uplink cooperative NOMA scheme

Z Wei, L Dai, DWK Ng, J Yuan - 2017 IEEE 85th Vehicular …, 2017 - ieeexplore.ieee.org
This paper proposes a novel hybrid downlinkuplink cooperative NOMA (HDU-CNOMA)
scheme to achieve a better tradeoff between spectral efficiency and signal reception …

Simultaneous transmitting and reflecting reconfigurable intelligent surfaces-empowered NOMA networks

M Aldababsa, A Khaleel, E Basar - IEEE Systems Journal, 2023 - ieeexplore.ieee.org
In this article, we propose a novel simultaneous transmitting and reflecting reconfigurable
intelligent surface (STAR-RIS)-assisted nonorthogonal multiple access (NOMA) system …

Optimal RIS partitioning and power control for bidirectional NOMA networks

M Makin, S Arzykulov, A Celik… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This study delves into the capabilities of reconfigurable intelligent surfaces (RISs) in
enhancing bidirectional non-orthogonal multiple access (NOMA) networks. The proposed …