Robust resource allocation for two-tier HetNets: An interference-efficiency perspective

Y Xu, G Gui, T Ohtsuki, H Gacanin… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
The heterogeneous network (HetNet) is a promising network for beyond 5G to improve
network capacity and spectral efficiency by developing low-power small cells within macro …

Joint user association and power control for area spectral efficiency maximization in HetNets

S Aboagye, A Ibrahim, TMN Ngatched… - 2020 IEEE 92nd …, 2020 - ieeexplore.ieee.org
The study of spectral efficiency (SE) in cellular networks has attracted significant research
interest in the wireless community. Heterogeneous networks (HetNets) have emerged as a …

Two-timescale QoS-aware cross-layer optimisation for HetNets with flexible backhaul

N Omidvar, A Liu, V Lau, F Zhang… - 2015 IEEE 26th …, 2015 - ieeexplore.ieee.org
One of the main advantages of utilizing flexible backhaul in future HetNets is that it can
provide better user experience through flexible resource allocation. For this purpose, it is …

Heterogeneous Multi-Agent Reinforcement Learning for Joint Active and Passive Beamforming in IRS Assisted Communications

A Gao, X Sun, Y Xu, W Liang - 2023 32nd Wireless and Optical …, 2023 - ieeexplore.ieee.org
Ahstract-The Intelligent Reflecting Surface (IRS) has the potential to reconstruct the
electromagnetic propagation environment, paving the way for a new multi-IRS assisted …

A Cooperative Online Learning-Based Load Balancing Scheme for Maximizing QoS Satisfaction in Dense HetNets

H Choi, T Kim, HS Park, JK Choi - IEEE Access, 2021 - ieeexplore.ieee.org
This paper proposes a cooperative multi-agent online reinforcement learning-based
(COMORL) bias offset (BO) control scheme for cell range expansion (CRE) in dense …

RIS-empowered MEC for URLLC systems with digital-twin-driven architecture

S Kurma, M Katwe, K Singh, C Pan… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This paper investigates a digital twin (DT) and reconfigurable intelligent surface (RIS)-aided
mobile edge computing (MEC) system under given constraints on ultra-reliable low latency …

Active RIS-aided EH-NOMA Networks: A Deep Reinforcement Learning Approach

Z Shi, H Lu, X Xie, H Yang, C Huang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
An active reconfigurable intelligent surface (RIS)-aided multi-user downlink communication
system is investigated, where non-orthogonal multiple access (NOMA) is employed to …

Cooperative Beamforming and RISs Association for Multi-RISs Aided Multi-Users MmWave MIMO Systems Through Graph Neural Networks

M Liu, C Huang, M Di Renzo… - ICC 2023-IEEE …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is considered as a promising solution for next-
generation wireless communication networks due to a variety of merits, eg, customizing the …

Coordinated two-tier heterogeneous cellular networks with leakage based beamforming

H Tataria, M Shafi, PJ Smith… - arXiv preprint arXiv …, 2015 - arxiv.org
In this paper we demonstrate the rate gains achieved by two-tier heterogeneous cellular
networks (HetNets) with varying degrees of coordination between macrocell and microcell …

A comparison study of coupled and decoupled uplink heterogeneous cellular networks

L Zhang, F Gang, Q Shuang - arXiv preprint arXiv:1502.01887, 2015 - arxiv.org
The evolution of mobile cellular networks has brought great changes of network architecture.
For example, heterogeneous cellular network (HetNet) and Ultra dense network (UDN) have …