Results 81 to 90 of about 26,640 (235)

Relay Selection for Cooperative NOMA

, 2016
This letter studies the impact of relay selection (RS) on the performance of cooperative non-orthogonal multiple access (NOMA). In particular, a two-stage RS strategy is proposed, and analytical results are developed to demonstrate that this two-stage ...
Dai, Huaiyu, Ding, Zhiguo, Poor, H. Vincent   +2 more
core   +1 more source

Joint Decision‐Making for UAV Deployment and Computational Offloading Optimized for Energy Consumption and Latency in Space‐Air‐Ground Integrated Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
Within the framework of integrated space‐air‐ground edge computing networks, this paper investigates the joint optimization of task allocation, user‐UAV association, UAV deployment, and computation resource allocation between UAVs and the LEO satellite.
Tengda Huang, Tao Hu, Di Wu, Wenzhi Zhao
wiley   +1 more source

A Systematic Review on Non-Orthogonal Multiple Access (NOMA) Based on Visible Light Communication for Intelligent Transportation Systems

Tikrit Journal of Engineering Sciences
Non-Orthogonal Multiple Access (NOMA) is a cutting-edge technology that permits several users to use the same frequency resources and transfer data at once. Visible light communication also known as VLC, is an innovative technology that offers access to
Seba Adnan Yosef, Lwaa Faisal Abdulameer
doaj   +1 more source

V2X Meets NOMA: Non-Orthogonal Multiple Access for 5G-Enabled Vehicular Networks [PDF]

IEEE Wireless Communications, 2017
Benefited from the widely deployed infrastructure, the LTE network has recently been considered as a promising candidate to support the vehicle-to-everything (V2X) services. However, with a massive number of devices accessing the V2X network in the future, the conventional OFDM-based LTE network faces the congestion issues due to its low efficiency of ...
Di, Boya, Song, Lingyang, Li, Yonghui, Han, Zhu   +3 more
openaire   +2 more sources

Communication‐Security Co‐Design for Federated Learning in Grant‐Free NOMA IoT Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
This article presents SA‐PPO, a Security‐Aware Proximal Policy Optimisation framework for federated learning over grant‐free NOMA (non‐orthogonal multiple access) in IoT networks. By jointly optimising access control, resource allocation, and trust‐weighted aggregation using cross‐layer indicators, SA‐PPO enhances both communication reliability and ...
Emmanuel Atebawone, Kwame Opuni‐Boachie Obour Agyekum, James Dzisi Gadze, Kwasi Adu‐Boahen Opare, Owusu Agyeman Antwi, Robert Akromond   +5 more
wiley   +1 more source

Pattern Division Multiple Access with Large-scale Antenna Array

, 2017
In this paper, pattern division multiple access with large-scale antenna array (LSA-PDMA) is proposed as a novel non-orthogonal multiple access (NOMA) scheme.
Jiang, Yanxiang, Kang, Shaoli, Li, Peng, You, Xiaohu, Zheng, Fuchun   +4 more
core   +1 more source

Resource Allocation in Multicarrier Non-Orthogonal Multiple Access (NOMA) Systems [PDF]

, 2021
Non-orthogonal multiple access (NOMA) can improve the spectrum efficiency and enable massive connectivity in future wireless communications systems by multiplexing multiple users in a non-orthogonal manner. Many previous works in power-domain NOMA addressed research problems from the perspective of the channel capacity, assumed perfect successive ...
openaire   +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, Anuar Mat Safar, Norizan Mohamed Nawawi, Mohd Nordin Junita, Aymen Abdalmunam Hameed, Ridha Ejbali   +5 more
wiley   +1 more source

Hybrid NOMA for Latency Minimization in Wireless Federated Learning for 6G Networks [PDF]

Radioengineering, 2023
Wireless Federated Learning (WFL) is an innovative machine learning paradigm enabling distributed devices to collaboratively learn without sharing raw data.
P. Kavitha, K. Kavitha
doaj  

Wireless Powered Cooperative Relaying using NOMA with Imperfect CSI

, 2018
The impact of imperfect channel state (CSI) information in an energy harvesting (EH) cooperative non-orthogonal multiple access (NOMA) network, consisting of a source, two users, and an EH relay is investigated in this paper.
Do, Dinh-Thuan, Nguyen, Thanh-Luan, Vaezi, Mojtaba   +2 more
core   +1 more source