Results 21 to 30 of about 4,358,865 (294)
Geo-spatial Information Science, 2022 With the undergoing and planned implementations of mega constellations of thousands of Low Earth Orbiting (LEO) satellites, space will become even more congested for satellite operations.
Yan Zhang +3 more
doaj +1 more source
Capacity Analysis of LEO Mega-Constellation Networks [PDF]
IEEE Access, 2022 This paper proposes a complete network capacity analysis framework for low-earth-orbit (LEO) mega-constellations, where a network capacity estimation problem considering the link packet loss rate is formulated with the support of a time-variant network topology model and a task distribution model. This problem is solved in two steps.
Ningyuan Wang +4 more
openaire +2 more sources
GaliLEO: A Simulation Tool for LEO Satellite Constellations [PDF]
SIMULATION, 2002 The authors present GaliLEO, a simulator for the transmission of connection-oriented traffic over a constellation of LEO/MEO (low/medium earth orbit) satellites. Its scope is limited to the satellites and the stations accessing them, without any modelling of the terrestrial network, but inside this scope the goal is to study the performance of ...
Potorti' F., Franck L.
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Inter-Plane Inter-Satellite Connectivity in Dense LEO Constellations [PDF]
IEEE Transactions on Wireless Communications, 2020 With numerous ongoing deployments owned by private companies and startups, dense satellite constellations deployed in low Earth orbit (LEO) will play a major role in the near future of wireless communications.
Israel Leyva-Mayorga +2 more
semanticscholar +1 more source
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 . Two approaches are discussed for the estimation and prediction of the orbits of low earth orbit (LEO) satellites that can be used for navigation. The first approach relays on using a ground monitoring network of stations. The procedures to generate the
A. el-Mowafy +3 more
semanticscholar +1 more source
Developing and experimenting with LEO satellite constellations in OMNeT++
CoRR, 2021 In this paper, we present our work in designing and implementing a LEO satellite constellation simulation model1 within OMNeT++ and INET, which is validated by comparing the results with existing work. Our model builds upon the fundamentals of the Open Source Satellite Simulator (OS$^3$), which was ported to INET 4.3.
Aiden Valentine, George Parisis
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Geo-spatial Information Science, 2022 In recent years, the large Low Earth Orbit (LEO) constellations have become a hot topic due to their great potential to improve the Global Navigation Satellite Systems (GNSS) positioning performance.
Xingxing Li +6 more
doaj +1 more source
Optimal Walker Constellation Design of LEO-Based Global Navigation and Augmentation System
Remote Sensing, 2020 Low Earth orbit (LEO) satellites located at altitudes of 500 km~1500 km can carry much stronger signals and move faster than medium Earth orbit (MEO) satellites at about a 20,000 km altitude.
Meiqian Guan +4 more
doaj +1 more source
Low-Orbit Large-Scale Communication Satellite Constellation Configuration Performance Assessment
International Journal of Aerospace Engineering, 2022 A constellation configuration performance evaluation method is proposed for the performance evaluation of the low-orbit large-scale communication satellite constellations.
Tianyu Sun, Min Hu, Chaoming Yun
doaj +1 more source
Physical Layer Authentication for LEO Satellite Constellations
2022 IEEE Wireless Communications and Networking Conference (WCNC), 2022 Physical layer authentication (PLA) is the process of claiming identity of a node based on its physical layer characteristics such as channel fading or hardware imperfections. In this work, we propose a novel PLA method for the inter-satellite communication links (ISLs) of the LEO satellites.
Ozan Alp Topal, Gunes Karabulut-Kurt
openaire +3 more sources