5 papers
Tethered UAVs for Dense Urban Connectivity
German Svistunov, Azim Akhtarshenas
This paper evaluates the downlink performance of 5G non-terrestrial networks (NTNs) realized via tethered unmanned aerial vehicle (TUAV)-mounted base stations, and compares it agai…
Wind-Resilient Trajectory Optimization for UAV-BS Networks: TD3 for Continuous Service Availability
Azim Akhtarshenas, German Svistunov, Kuangyu Zheng +1
Unmanned aerial vehicle (UAV)-mounted base stations are highly susceptible to wind disturbances such as gusts and turbulence, which induce positional drift and degrade communicatio…
PPO-Based Dynamic Positioning of HAPS-BS in Wind-Disturbed Stratospheric Maritime Networks
Azim Akhtarshenas, German Svistunov, Matteo Bernabè +2
High-Altitude Platform Stations (HAPS) offer a promising solution for wide-area wireless coverage in maritime regions lacking terrestrial infrastructure. However, maintaining relia…
Performance Analysis of Tri-Sector Reflector Antennas for HAPS-Based Cellular Networks
German Svistunov, Matteo Bernabe, David Lopez-Perez
The increasing demand for ubiquitous, highcapacity mobile connectivity has driven cellular systems to explore beyond-terrestrial deployments. In this paper, we present a system-lev…
Bridging Earth and Space: A Survey on HAPS for Non-Terrestrial Networks
G. Svistunov, A. Akhtarshenas, D. López-Pérez +3
HAPS are emerging as key enablers in the evolution of 6G wireless networks, bridging terrestrial and non-terrestrial infrastructures. Operating in the stratosphere, HAPS can provid…