RIS-assisted grant-free NOMA: User pairing, RIS assignment, and phase shift alignment

F Kilinc, RA Tasci, A Celik, A Abdallah… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This paper introduces a reconfigurable intelligent surface (RIS)-assisted grant-free non-
orthogonal multiple access (GF-NOMA) scheme. We propose a joint user equipment (UE) …

RIS-assisted grant-free NOMA

RA Tasci, F Kilinc, A Celik, A Abdallah… - ICC 2023-IEEE …, 2023 - ieeexplore.ieee.org
This paper introduces a reconfigurable intelligent surface (RIS)-assisted grant-free non-
orthogonal multiple access (GF-NOMA) scheme. To ensure the power reception disparity …

Grant-free NOMA: A low-complexity power control through user clustering

A Celik - Sensors, 2023 - mdpi.com
Non-orthogonal multiple access (NOMA) has emerged as a promising solution to support
multiple devices on the same network resources, improving spectral efficiency and enabling …

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 …

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 …

Enhanced user pairing and power allocation strategies for downlink NOMA systems with imperfections in SIC

NS Mouni, MP Reddy, A Kumar… - … Systems & NETworkS …, 2023 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is a key energy and spectrally-efficient multiple
access technique. In this poster, we analyze the adaptive multi-user clustering (AMUC) for …

Multi-agent DRL approach for energy-efficient resource allocation in URLLC-enabled grant-free NOMA systems

DD Tran, SK Sharma, VN Ha… - IEEE Open Journal …, 2023 - ieeexplore.ieee.org
Grant-free non-orthogonal multiple access (GF-NOMA) has emerged as a promising access
technology for the fifth generation and beyond wireless networks that enable ultra-reliable …

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 …

Generalized user grouping in NOMA: An overlapping perspective

W Chen, S Zhao, R Zhang, H Chen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is regarded as a promising technology to provide
high spectral efficiency and support massive connectivity in 5G systems. Traditionally …

Dynamic user pairing and power allocation for NOMA with deep reinforcement learning

F Jiang, Z Gu, C Sun, R Ma - 2021 IEEE Wireless …, 2021 - ieeexplore.ieee.org
In this paper, we investigate the user pairing and power allocation scheme for multiple
cellular users (CUs) under the downlink non-orthogonal multiple access (NOMA) system. To …