UxNB-enabled cell-free massive MIMO with HAPS-assisted sub-THz backhauling

O Abbasi, H Yanikomeroglu - IEEE Transactions on Vehicular …, 2024 - ieeexplore.ieee.org
In this article, we propose a cell-free scheme for unmanned aerial vehicle (UAV) base
stations (BSs) to manage the severe intercell interference between terrestrial users and UAV …

Soft Actor–Critic Based 3-D Deployment and Power Allocation in Cell-Free Unmanned Aerial Vehicle Networks

F Xu, Y Ruan, Y Li - IEEE Wireless Communications Letters, 2023 - ieeexplore.ieee.org
This letter investigates a cell-free unmanned aerial vehicles (UAV) network where UAVs
serve as flying access points (FAPs) to overcome the inter-cell interference in conventional …

Efficient resource allocation and user association in NOMA-enabled vehicular-aided HetNets with high altitude platforms

A Nauman, M Maashi, HK Alkahtani… - Computer …, 2024 - Elsevier
The increasing demand for massive connectivity and high data rates has made the efficient
use of existing spectrum resources an increasingly challenging problem. Non-orthogonal …

Hybrid FSO/Sub-THz-based Vertical Networks for Internet of Vehicles

HD Le, CT Nguyen, TK Nguyen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Vertical networks, including low Earth orbit (LEO) satellites and high-altitude platforms
(HAP), are promising network paradigms to support diverse vehicular services in Internet of …

Random Access Protocols for Cell-Free Wireless Network Exploiting Statistical Behavior of THz Signal Propagation

P Bhardwaj, SM Zafaruddin, A Leshem - arXiv preprint arXiv:2311.06166, 2023 - arxiv.org
The current body of research on terahertz (THz) wireless communications predominantly
focuses on its application for single-user backhaul/fronthaul connectivity at sub-THz …

Multi-Tier Non-Terrestrial Networking for Disaster Communications: A Layered Clustering Approach

M Ozturk, B Çiloğlu, GB Koç… - arXiv preprint arXiv …, 2024 - arxiv.org
It is crucial to deploy temporary non-terrestrial networks (NTN) in disaster situations where
terrestrial networks are no longer operable. Deploying uncrewed aerial vehicle base …

UAV-Enabled Cell-Free Networks: Joint Optimization for User Fairness

Z Ding, X Sun, R Jiang, X Lu, Z Zhong… - 2023 IEEE 98th …, 2023 - ieeexplore.ieee.org
This paper aims to enhance user fairness in unmanned aerial vehicles (UAVs) enabled cell-
free wireless networks. We consider a scenario where multiple UAVs serve as access points …

Mutual Authentication between Aerial Base Stations and Core Network: A Lightweight Security Scheme

KC Yang, PC Lin - 2023 33rd International Telecommunication …, 2023 - ieeexplore.ieee.org
The 3rd Generation Partnership Project (3GPP) is actively working on incorporating non-
terrestrial networks (NTNs) into the 5G system. NTNs integrate various aerial and space …

Enhanced Non-Orthogonal Multiple Access Performance Using Channel Coding for High-Altitude Platform System (HAPS).

VW Mahyastuty, T Ghozali… - International Journal …, 2024 - search.ebscohost.com
The high-altitude platform system (HAPS) is a promising technology for providing high-
speed data transmission and coverage for remote areas. Still, it suffers from unpredictable …

[PDF][PDF] Trajectory Optimization in User-Centric Distributed Massive MIMO Systems Enabled by UAV Swarms

DD Souza, MMM Freitas, ALP Fernandes… - Authorea …, 2024 - techrxiv.org
User-centric (UC) distributed massive multiple-input multiple-output (D-mMIMO), commonly
called cell-free mMIMO, is an important technology to ensure a more uniform coverage as …