On energy harvesting of hybrid TDMA-NOMA systems

H Al-Obiedollah, K Cumanan, AG Burr… - 2019 IEEE Global …, 2019 - ieeexplore.ieee.org
In this paper, we investigate energy harvesting capabilities of non-orthogonal multiple
access (NOMA) scheme integrated with the conventional time division multiple access …

Optimized power allocation for a cooperative NOMA system with SWIPT and an energy-harvesting user

CE Garcia, PV Tuan, MR Camana… - International Journal of …, 2020 - Taylor & Francis
This paper investigates the solution to an optimisation problem to minimise the total
transmission power at the transmitter in a cooperative non-orthogonal multiple access …

Energy-efficient resource optimization using game theory in hybrid NOMA assisted cognitive radio networks

A Kumar, K Kumar - Physical Communication, 2021 - Elsevier
Abstract Presently, Secondary Networks (SNs) are gleaned from rising capacity with
reducing interference together instead of making them energy-efficient for green …

Energy harvesting in overlay cognitive NOMA systems with hardware impairments

CK Singh, V Singh, PK Upadhyay… - IEEE Systems Journal, 2021 - ieeexplore.ieee.org
Combining energy harvesting with cognitive radio and nonorthogonal multiple access
(NOMA) techniques will be a notable candidate for improving both energy and spectral …

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
This paper applies machine learning to optimize the transmission policies of cognitive radio
inspired non-orthogonal multiple access (CR-NOMA) networks, where time-division multiple …

Security energy efficiency maximization for two-way relay assisted cognitive radio NOMA network with self-interference harvesting

W Zhao, R She, H Bao - IEEE Access, 2019 - ieeexplore.ieee.org
The security energy efficiency (SEE) is investigated in a two way-full duplex (TW-FD) relay
assisted cognitive radio non-orthogonal multiple access (CR-NOMA) networks. In order to …

Joint spectrum resource allocation in NOMA-based cognitive radio network with SWIPT

Z Song, X Wang, Y Liu, Z Zhang - IEEE access, 2019 - ieeexplore.ieee.org
In a conventional cognitive radio (CR) network, only when the primary user's (PU) frequency
bands are sensed to be free, secondary users (SUs) can utilize these frequency band …

Cognitive non-orthogonal multiple access with energy harvesting: An optimal resource allocation approach

F Li, H Jiang, R Fan, P Tan - IEEE Transactions on Vehicular …, 2019 - ieeexplore.ieee.org
We consider a cognitive radio system, in which a secondary transmitter harvests energy from
a primary transmitter's RF signal. The secondary transmitter, which provides decode-and …

Cooperative underlay cognitive radio assisted NOMA: secondary network improvement and outage performance

DT Do, CB Le, AT Le - … Computing Electronics and Control), 2019 - telkomnika.uad.ac.id
In this paper, a downlink scenario of a non-orthogonal multiple access (NOMA) scheme with
power constraint via spectrum sensing is considered. Such network provides improved …

Joint spectral and energy efficiency optimization for downlink NOMA networks

WU Khan, F Jameel, T Ristaniemi… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) holds the promise to be a key enabler of 5G
communication. However, the existing design of NOMA systems must be optimized to …