Results 21 to 30 of about 2,132 (298)
ns-3-leo: Evaluation Tool for Satellite Swarm Communication Protocols
IEEE Access, 2022 We present ns-3-leo, a module for the discrete event network simulator ns-3, which includes models for the network mobility and link characteristics of Low Earth Orbit (LEO) satellite mega-constellations.
Tim Schubert, Lars Wolf, Ulf Kulau
doaj +1 more source
Remote Sensing, 2023 The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu +8 more
doaj +1 more source
Sensors, 2022 The railway sector has been characterized by important innovations regarding digital technologies for train-to-ground communications. The actual GSM-R system is considered an obsolescent technology expected to be dismissed by 2030.
Alessandro Vizzarri +2 more
doaj +1 more source
Modeling and Analysis of RFI Impacts on Imaging between Geosynchronous SAR and Low Earth Orbit SAR
Remote Sensing, 2022 Due to the short revisit time and large coverage of Geosynchronous synthetic aperture radars (GEO SARs) and the increasing number of low earth orbit synthetic aperture radar (LEO SAR) constellations, radio frequency interference (RFI) between GEO SARs ...
Xichao Dong +4 more
doaj +1 more source
Location Management in Internet Protocol-Based Future LEO Satellite Networks: A Review
IEEE Open Journal of the Communications Society, 2022 Future integrated terrestrial, aerial, and space networks will involve thousands of low-Earth-orbit (LEO) satellites, which will form a network of mega-constellations.
Tasneem Darwish +4 more
doaj +1 more source
Exploring the Contribution of PNT LEO Satellites to Precise Positioning Applications
Engineering Proceedings, 2023 Positioning services based on GNSS (Global Navigation Satellite Systems) have been using MEO satellites designed to guarantee Earth global coverage for decades.
Jorge Durán +5 more
doaj +1 more source
Inter-Plane Satellite Matching in Dense LEO Constellations [PDF]
2019 IEEE Global Communications Conference (GLOBECOM), 2019 Dense constellations of Low Earth Orbit (LEO) small satellites are envisioned to make extensive use of the inter-satellite link (ISL). Within the same orbital plane, the inter-satellite distances are preserved and the links are rather stable. In contrast, the relative motion between planes makes the inter-plane ISL challenging.
Soret, Beatriz +2 more
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Phased Array Antenna Analysis Workflow Applied to Gateways for LEO Satellite Communications
Sensors, 2022 Nowadays, mega-constellations of Low Earth Orbit (LEO) satellites have become increasingly important to provide high-performance Internet access with global coverage.
Irene Merino-Fernandez +3 more
doaj +1 more source
Performance Analysis of Uplink Code Division Multiplexing for LEO Satellite Constellations Under Nonlinear Power Amplifiers. [PDF]
Sensors (Basel)Visintin M, Schiavone R, Garello R.
europepmc +3 more sources
Rethinking LEO constellations routing
International Journal of Satellite Communications and NetworkingSummaryThis study investigates the unsplittable multicommodity flow (UMCF) as a routing algorithm for LEO constellations. Usually, LEO routing schemes enable the Floyd–Warshall algorithm (shortest path) to minimize the end‐to‐end latency of the flows crossing the constellation.
Paul Grislain +7 more
openaire +2 more sources