Outage performance of users in CR-NOMA network systems
Non-Orthogonal Multiple Access (NOMA) and Cognitive Radio (CR) technologies present viable solutions to mitigate spectrum scarcity in wireless communication systems.
Tran, Huu Q.
core +1 more source
User Pairing in Non-Orthogonal Multiple Access Downlink Transmissions
, 2014 The aim of this paper is to study how to enlarge the performance gap between non-orthogonal multiple access (NOMA) and conventional orthogonal multiple access (MA) by applying user pairing.
Fan, Pingzhi +5 more
core +1 more source
CA‐PPO: Collision‐Aware Reinforcement Learning for Grant‐Free NOMA in Wireless Federated Learning
IET Networks, Volume 15, Issue 1, January/December 2026.This paper proposes a collision‐aware proximal policy optimisation (CA‐PPO) framework for joint clustering and power allocation in grant‐free NOMA–enabled wireless federated learning systems. By explicitly accounting for random access collisions, SIC decoding failures and energy–latency constraints, the proposed approach stabilises learning under ...
Emmanuel Atebawone +5 more
wiley +1 more source
Optimised Pairing–Based Fair Resource Management in LTE‐Advanced Device‐to‐Device Communications
The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.This paper addresses the challenges of interference management and resource allocation in LTE‐Advanced Device‐to‐Device (D2D) communications. It proposes a comprehensive framework integrating optimal pairing, resource allocation, and power assignment to maximize network performance.
Siavash Rajabi +3 more
wiley +1 more source
A Comparison between Orthogonal and Non-Orthogonal Multiple Access in Cooperative Relaying Power Line Communication Systems [PDF]
, 2017 Most, if not all, existing studies on power line communication (PLC) systems as well as industrial PLC standards are based on orthogonal multiple access schemes such as orthogonal frequency-division multiplexing and code-division multiple access. In this
Adebisi B. +19 more
core +1 more source
Investigation on Evolving Single-Carrier NOMA Into Multi-Carrier NOMA in 5G
IEEE Access, 2018 Non-orthogonal multiple access (NOMA) is one promising technology, which provides high system capacity, low latency, and massive connectivity, to address several challenges in the fifth-generation wireless systems. In this paper, we first reveal that the
Jie Zeng +6 more
doaj +1 more source
Performance Analysis of Power Allocation and User-Pairing Techniques for MIMO-NOMA in VLC Systems
PhotonicsIn this paper, we evaluate the performance of multiple-input multiple-output (MIMO) communication systems applied with a non-orthogonal multiple access (NOMA)-based indoor visible light communication (VLC).
Hesham S. Ibrahim +3 more
doaj +1 more source
PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM
Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam +5 more
wiley +1 more source
UAV-assisted cooperative downlink NOMA with virtual full-duplex operation
ICT Express, 2019 In this paper, we consider an unmanned aerial vehicle (UAV)-assisted downlink cellular network consisting of a single base station (BS), two mobile stations (MSs) with N antennas, and K UAV relay stations (RSs). We assume that there exists no direct link
Jeong Seon Yeom +2 more
doaj +1 more source
Flexible Data Rate Allocation Using Non-Orthogonal Multiple Access (NOMA) in a Mode Division Multiplexing (MDM) Optical Power Splitter for System-on-Chip Networks. [PDF]
Sensors (Basel), 2023 Lin YZ +6 more
europepmc +1 more source