Results 191 to 200 of about 305,430 (305)

Interplate rheological contrast revealed by asymmetric deformation after the 2023 Kahramanmaraş earthquakes. [PDF]

Nat Commun
Liu J, Jónsson S, Li X, Yao W, Klinger Y.   +4 more
europepmc   +1 more source

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

Internet of Things Node with Real-Time LoRa GEO Satellite Connectivity for Agrifood Chain Tracking in Remote Areas. [PDF]

Sensors (Basel)
Giannetti G, Badii M, Lasagni G, Maddio S, Collodi G, Righini M, Cidronali A.   +6 more
europepmc   +1 more source

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source

Cybersecurity in Radio Frequency Technologies: A Scientometric and Systematic Review with Implications for IoT and Wireless Applications. [PDF]

Sensors (Basel)
Araújo PR, de Rezende JAM, Faria DRM, Gomes OSM.   +3 more
europepmc   +1 more source

Path‐Based Deep Reinforcement Learning for On‐Board Routing in Satellite Constellation Networks

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Efficient usage of available network resources is a crucial factor for broadband services in interconnected satellite constellations. To meet required quality of service standards under heavy network loads, it is essential to optimize traffic distribution among the intersatellite links. To address this challenge, we propose an adaptive traffic
Manuel M. H. Roth, Thomas Jerkovits, Anupama Hegde, Thomas Delamotte, Andreas Knopp   +4 more
wiley   +1 more source

A Survey of Modern Data Acquisition and Analysis Systems for Environmental Risk Monitoring in Aquatic Ecosystems. [PDF]

Sensors (Basel)
Perra N, Giusto D, Anedda M.
europepmc   +1 more source

Satellite Communications [PDF]

, 2013
Gusev, O.Yu., Ivanchenko, I.A., Zadorozhnya, Olga   +2 more
core  

Preprocessing Procedure for Propagation Measurements on MEO Satellite Links

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper presents a software tool designed for preprocessing data from an experimental campaign aimed at characterizing the tropospheric propagation channel using Medium Earth Orbit (MEO) satellites. The collected data provide critical insights into the channel in scenarios involving continuous variations in azimuth and elevation, along with
Marlene Brás, Susana Mota, Armando Rocha   +2 more
wiley   +1 more source

Image Matching Algorithm-Driven Multi-Beam Customized Meta-Device. [PDF]

Materials (Basel)
Cui X, Liu D, Wu B, Zeng H, Qin Y, Ren G, Wang G, Cai T.   +7 more
europepmc   +1 more source