Deep reinforcement learning based joint downlink beamforming and RIS configuration in RIS-aided MU-MISO systems under hardware impairments and imperfect …
B Saglam, D Gurgunoglu… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
We introduce a novel deep reinforcement learning (DRL) approach to jointly optimize
transmit beamforming and reconfigurable intelligent surface (RIS) phase shifts in a multiuser …
transmit beamforming and reconfigurable intelligent surface (RIS) phase shifts in a multiuser …
Enhancing data rate and energy efficiency of NOMA systems using reconfigurable intelligent surfaces for millimeter-wave communications
XN Pham, BC Nguyen, TD Thi, N Van Vinh… - Digital Signal …, 2024 - Elsevier
In this article, we employ reconfigurable intelligent surface (RIS) to aid a non-orthogonal
multiple access (NOMA) system utilizing millimeter-wave (mmWave) communications …
multiple access (NOMA) system utilizing millimeter-wave (mmWave) communications …
A hybrid PSO-GWO-based phase shift design for a hybrid-RIS-aided heterogeneous network system
ANS Hamadou, C wa Maina, MM Soidridine - Heliyon, 2024 - cell.com
The effectiveness of developing reconfigurable intelligent surfaces (RIS) for heterogeneous
network (HetNet) systems has resulted in significant spectral efficiency (SE) gains. The …
network (HetNet) systems has resulted in significant spectral efficiency (SE) gains. The …
Improving secrecy performance of NOMA networks with multiple non-colluding eavesdroppers employing multiple aerial reconfigurable intelligent surfaces
This paper proposes exploiting multiple aerial reconfigurable intelligent surfaces (ARISs) for
the secrecy performance enhancement of non-orthogonal multiple access (NOMA) …
the secrecy performance enhancement of non-orthogonal multiple access (NOMA) …
Distributed Signal Processing for Extremely Large-Scale Antenna Array Systems: State-of-the-Art and Future Directions
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the
functionalities of next generation wireless communication systems. However, as the number …
functionalities of next generation wireless communication systems. However, as the number …
Energy-Efficient RIS-Enabled SISO-OFDMA Communication via Lower Bound Optimization
The pursuit of energy-efficient solutions in the context of reconfigurable intelligent surface
(RIS)-assisted wireless networks has become imperative and transformative. This paper …
(RIS)-assisted wireless networks has become imperative and transformative. This paper …
A Grey Wolf Optimiser (GWO)-based RIS phase shift Design for a RIS-assisted multi-antenna system
ANS Hamadou, CW Maina… - IEEE Communications …, 2024 - ieeexplore.ieee.org
Reconfigurable Intelligent Surfaces (RIS) offer numerous interesting advantages, including
the ability to dynamically rearrange wireless channels to enhance communication system …
the ability to dynamically rearrange wireless channels to enhance communication system …
Multi-Agent DRL Based Transmission Optimization for Distributed RIS-Aided Communication Systems
In this paper, we investigate the distributed reconfigurable intelligent surface (RIS)-aided
downlink multi-input single-output communication systems. Specifically, to make the …
downlink multi-input single-output communication systems. Specifically, to make the …
Applications of RL for Discrete Problems in RIS-Assisted Communication Systems
This chapter focuses on the practical implementation of RIS-assisted communication
systems, specifically addressing discrete optimization problems. It explores the application …
systems, specifically addressing discrete optimization problems. It explores the application …
Impact of memory on beamforming optimization for DDPG-assisted RIS-multi-user system
Recently, reconfigurable intelligent surfaces (RIS) have garnered considerable attention as
indispensable components driving the evolution of future 6G wireless communication …
indispensable components driving the evolution of future 6G wireless communication …