Intelligent reflecting surface aided MIMO cognitive radio systems

L Zhang, Y Wang, W Tao, Z Jia… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In cognitive radio (CR) systems, the spectrum efficiency (SE) of the secondary users (SUs) is
always limited by the interference temperature constraint imposed on the primary users …

Joint multigroup precoding and resource allocation in integrated terrestrial-satellite networks

B Deng, C Jiang, J Yan, N Ge, S Guo… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The integrated terrestrial-satellite network (ITSN) combines cellular networks and satellite
networks to provide services for the ever-increasing users, where the coexistence of the two …

Spectral efficiency analysis for massive MIMO system under QoS constraint: an effective capacity perspective

L Chen, L Zhang - Mobile Networks and Applications, 2021 - Springer
In massive multiple-input multiple-output (MIMO) systems, dozens of mobile users can
simultaneously receive signals from one base station. To obtain maximum spectral efficiency …

Underlay spectrum sharing in massive MIMO systems

R Saif, Z Pourgharehkhan… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
We consider an underlay spectrum sharing scheme, where a multi-user massive MIMO
network (referred to as the primary network (PN)) allows another multi-user massive MIMO …

Deep reinforcement learning based intelligent user selection in massive MIMO underlay cognitive radios

Z Shi, X Xie, H Lu - IEEE Access, 2019 - ieeexplore.ieee.org
Cognitive radio (CR) and massive multiple-input multiple-output (MIMO) have attracted
much interest recently due to the amazing ability to accommodate more users and improve …

Deep learning-based energy efficient resource allocation for underlay cognitive MISO interference channels

W Lee, K Lee - IEEE Transactions on Cognitive …, 2022 - ieeexplore.ieee.org
In this paper, we investigate a deep learning (DL)-based resource allocation strategy for an
underlay cognitive radio network with multiple-input-single-output interference channels …

Cell-Free Massive MIMO Enabled Wireless Communication With UAVs in Underlay Spectrum Access Networks

EV Pothan, S Kashyap - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
We investigate the use of cell-free massive multiple input multiple output (MIMO) systems in
serving unmanned aerial vehicles (UAVs) and ground user equipments (GUEs) in underlay …

Exploiting underlay spectrum sharing in cell-free massive MIMO systems

DL Galappaththige, GAA Baduge - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We investigate the coexistence of underlay spectrum sharing in cell-free massive multiple-
input multiple-output (MIMO) systems. A primary system with geographically distributed …

Spectral efficiency optimization in IRS-aided multiuser MIMO SWIPT cognitive radio systems

P Van Quyet, HH Kha - 2022 RIVF international conference on …, 2022 - ieeexplore.ieee.org
This paper considers the deployment of an intelligent reflecting surface (IRS) to assist a
multiuser multiple-input multiple-output (MU-MIMO) simultaneous wireless information and …

Attacking massive MIMO cognitive radio networks by optimized jamming

SF Zamanian, MH Kahaei… - IEEE Open Journal …, 2021 - ieeexplore.ieee.org
Massive multiple-input multiple-output (MaMIMO) and cognitive radio networks (CRNs) are
two promising technologies for improving spectral efficiency of next-generation wireless …