Resource optimization of D2D-assisted CR network with NOMA for 5G and beyond systems

M Waqas, W Ejaz, GAS Sidhu… - IEEE Internet of Things …, 2022 - ieeexplore.ieee.org
… We consider a D2D-assisted CR model, which works under the NOMA scheme shown in
Fig… This article considers an RF-EH-enabled NOMA-based D2D-assisted CR network and …

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
… improvement of SE in IRS-assisted systems with NOMA, while EE was not considered. …
-assisted systems with NOMA, in which the system EE was maximized by alternatively optimizing

No-pain no-gain: DRL assisted optimization in energy-constrained CR-NOMA networks

Z Ding, R Schober, HV Poor - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
NOMA can be found in recent survey articles [17]–[20]. This paper focuses on a cognitive radio
(CR) inspired NOMA … users, where the use of CR-NOMA ensures that the secondary user …

Energy efficiency maximization for two-way relay assisted CR-NOMA system based on SWIPT

W Zhao, R She, H Bao - IEEE Access, 2019 - ieeexplore.ieee.org
… two-way relay assisted cognitive radio non-orthogonal multiple access (CR-NOMA) network.
… Specifically, the multi-objective optimization problem is decomposed into three subproblems…

Active and passive beamforming design for reconfigurable intelligent surface assisted CR-NOMA networks

W Liang, W Luo, J Zhang, Z Ding - IEEE Communications …, 2022 - ieeexplore.ieee.org
… Passive Beamforming Optimization In this section, we optimize the passive beamforming
vector on the RIS by the given active beamformation vector {wi}. The original energy efficiency …

Throughput maximization of a UAV assisted CR network with NOMA-based communication and energy-harvesting

A Bhowmick, SD Roy, S Kundu - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
… -assisted NOMA … the NOMA scheme, the flying height of the UAV is also optimized in [21]
to maximize the network performance such as sum-rate, and EE etc. The performance of NOMA

Energy efficiency optimization for NOMA-based cognitive radio with energy harvesting

X Wang, Z Na, KY Lam, X Liu, Z Gao, F Li… - IEEE access, 2019 - ieeexplore.ieee.org
… In [39], an EE optimization problem was investigated for a relay assisted CR-NOMA network
… NETWORK In this section, the EE optimization problem of underlay CR-NOMA network is …

Throughput optimization for noma energy harvesting cognitive radio with multi-UAV-assisted relaying under security constraints

VH Dang, H Tran, TD Ho, C So-In… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
… • We investigate a CR-NOMA system in which a GBS sends signals to a PR using OMA, …
of Things (IoT) destinations (IDs) using NOMA under monitoring by an EAV. • We propose a …

Energy Efficiency Optimization Algorithm of CRNOMA System Based on SWIPT

Z Wang, Q Zhu - Mathematical Problems in Engineering, 2020 - Wiley Online Library
… The system model of a two-way relay assisted CR-NOMA system in this paper is shown
in Figure 1 [19], which includes a primary transmitter (PT), a primary receiver (PR), a two-way …

Ensemble Learning aided QPSO–Based Framework for Secrecy Energy Efficiency in FD CR-NOMA Systems

CE Garcia, MR Camana, I Koo - IEEE Transactions on Green …, 2022 - ieeexplore.ieee.org
… swarm optimization (QPSO)-based technique to optimize power … a FD cooperative relay
CRNOMA network consisting of a … The proposed FD CR-NOMA network is assisted by an …