A state-of-the-art survey on reconfigurable intelligent surface-assisted non-orthogonal multiple access networks

Z Ding, L Lv, F Fang, OA Dobre… - Proceedings of the …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) and nonorthogonal multiple access (NOMA) have
been recognized as key enabling techniques for the envisioned sixth generation (6G) of …

Energy efficiency maximization in RIS-assisted SWIPT networks with RSMA: A PPO-based approach

R Zhang, K Xiong, Y Lu, P Fan… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
This paper investigates reconfigurable intelligent surface (RIS)-assisted simultaneous
wireless information and power transfer (SWIPT) networks with rate splitting multiple access …

Beamforming optimization for active intelligent reflecting surface-aided SWIPT

Y Gao, Q Wu, G Zhang, W Chen… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Active intelligent reflecting surface (IRS) has been recently proposed to alleviate the product
path loss attenuation inherent in the IRS-aided cascaded channel. In this paper, we study an …

Multi-objective optimization for spectrum and energy efficiency tradeoff in IRS-assisted CRNs with NOMA

Y Wu, F Zhou, W Wu, Q Wu, RQ Hu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is a promising candidate for the sixth generation
wireless communication networks due to its high spectrum efficiency (SE), energy efficiency …

A comprehensive survey on IRS-assisted NOMA-based 6G wireless network: Design perspectives, challenges and future directions

D Sarkar, SS Yadav, V Pal, N Kumar… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
The propagation environment was uncontrollable in first-generation to fifth-generation (5G)
wireless technologies. This behavior of the wireless propagation environment is one of the …

Rate splitting multiple access for sum-rate maximization in IRS aided uplink communications

M Katwe, K Singh, B Clerckx… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, an intelligent reflecting surface (IRS) aided uplink (UL) rate-splitting multiple
access (RSMA) system is investigated for dead-zone users where the direct link between the …

Power minimization for uplink RIS-assisted CoMP-NOMA networks with GSIC

H Wang, C Liu, Z Shi, Y Fu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
To accommodate the stringent requirements of massive connectivity and ultra-high
throughput, both reconfigurable intelligent surface (RIS) and non-orthogonal multiple access …

Power-efficient passive beamforming and resource allocation for IRS-aided WPCNs

M Hua, Q Wu, HV Poor - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper studies an intelligent reflecting surface (IRS)-assisted wireless-powered
communication network (WPCN), where a hybrid access point (HAP) broadcasts energy …

Deep reinforcement learning-based optimization for IRS-assisted cognitive radio systems

C Zhong, M Cui, G Zhang, Q Wu, X Guan… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In this paper, we consider an intelligent reflecting surface (IRS)-assisted cognitive radio
system and maximize the secondary user (SU) rate by jointly optimizing the transmit power …

Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions

Y Zhao - Frontiers of Information Technology & Electronic …, 2023 - Springer
Scholars are expected to continue enhancing the depth and breadth of theoretical research
on reconfigurable intelligent surface (RIS) to provide a higher theoretical limit for RIS …