Multi-task DRL for rate control in RIS-assisted multi-cell dual-connectivity HetNets

A Alwarafy, M Abdallah, N Al-Dhahir… - … 2022-2022 IEEE …, 2022 - ieeexplore.ieee.org
Reconfigurable Intelligent Surface (RIS) has recently emerged as an enabling technology to
enhance reliability and overcome blockage in future heterogeneous wireless networks …

Rate Control for RIS-Empowered Multi-Cell Dual-Connectivity HetNets: A Distributed Multi-Task DRL Approach

A Alwarafy, M Abdallah, N Al-Dhahir… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Heterogeneous wireless networks (HetNets), where networks are deployed with ultra-dense
small cells (SCs), is one of the main enabling technologies for future wireless networks. In …

Cross-Tier Interference Mitigation for RIS-Assisted Heterogeneous Networks

AN Soumana Hamadou, C wa Maina, MM Soidridine - Technologies, 2023 - mdpi.com
With the development of the next generation of mobile networks, new research challenges
have emerged, and new technologies have been proposed to address them. On the other …

Joint Resource Allocation and Passive Beamforming in RIS-aided HetNets with Wireless Backhaul

J Niu, Y Wang, X Zhou - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
Heterogeneous networks (HetNets) have been widely used in the development of 5G
because a large number of small base stations (SBSs) can be deployed in hot spots to …

Max-min energy efficiency for RIS-aided HetNets with hardware impairments and imperfect CSI

Y Xu, H Xie, C Pan, RQ Hu - 2021 IEEE Global …, 2021 - ieeexplore.ieee.org
Beamforming design is crucial to reconfigurable intelligent surface (RIS)-aided
communication networks. However, most of the existing works assume ideal hardware and …

Robust max-min energy efficiency for RIS-aided HetNets with distortion noises

Y Xu, H Xie, Q Wu, C Huang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The energy efficiency (EE) of femtocells is always limited by the surrounding radio
environments in heterogeneous networks (HetNets), such as walls and obstacles. In this …

Sharing the surface: RIS-aided distributed mechanism design for hybrid beamforming in multi-cell multi-user networks

B Di - IEEE INFOCOM 2021-IEEE Conference on Computer …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) as a new antenna technology has triggered a
revolution in multi-antenna multi-user networks due to its capability of intelligently …

Optimal phase shift design for fair allocation in RIS aided uplink network using statistical CSI

A Subhash, A Kammoun, A Elzanaty… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RIS) can be crucial in next-generation communication
systems. However, designing the RIS phases according to the instantaneous channel state …

Learning-based reconfigurable-intelligent-surface-aided rate-splitting multiple access networks

DT Hua, QT Do, NN Dao, TV Nguyen… - IEEE Internet of …, 2023 - ieeexplore.ieee.org
Rate-splitting multiple access (RSMA) and reconfigurable intelligent surface (RIS)
techniques show promise in enhancing spectral efficiency in sixth-generation Internet of …

Hierarchical multi-agent DRL-based framework for joint multi-RAT assignment and dynamic resource allocation in next-generation HetNets

A Alwarafy, BS Çiftler, M Abdallah… - … on Network Science …, 2022 - ieeexplore.ieee.org
This article considers the problem of cost-aware downlink sum-rate maximization via joint
optimal radio access technologies (RATs) assignment and power allocation in next …