Results 11 to 20 of about 913 (245)

Hierarchical Resource Management for Mega-LEO Satellite Constellation. [PDF]

open access: yesSensors (Basel)
The mega-low Earth orbit (LEO) satellite constellation is pivotal for the future of satellite Internet and 6G networks. In the mega-LEO satellite constellation system (MLSCS), which is the spatial distribution of satellites, global users, and their services, along with the utilization of global spectrum resources, significantly impacts resource ...
Gou L   +6 more
europepmc   +4 more sources

Developing and experimenting with LEO satellite constellations in OMNeT++

open access: yesCoRR, 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
openaire   +2 more sources

GaliLEO: A Simulation Tool for LEO Satellite Constellations [PDF]

open access: yesSIMULATION, 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.
openaire   +5 more sources

Physical Layer Authentication for LEO Satellite Constellations

open access: yes2022 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

Satellite-enabled LTE systems in LEO constellations [PDF]

open access: yes2017 IEEE International Conference on Communications Workshops (ICC Workshops), 2017
LTE-based satellite systems in LEO constellations are a promising solution for extending broadband coverage to areas not connected to a terrestrial infrastructure. However, the large delays and Doppler shifts over the satellite channel pose severe technical challenges to a traditional LTE system.
Alessandro Guidotti   +8 more
openaire   +6 more sources

Exploiting topology awareness for routing in LEO satellite constellations [PDF]

open access: yes2021 IEEE Global Communications Conference (GLOBECOM), 2021
Low Earth Orbit (LEO) satellite constellations combine great flexibility and global coverage with short propagation delays when compared to satellites deployed in higher orbits. However, the fast movement of the individual satellites makes inter-satellite routing a complex and dynamic problem. In this paper, we investigate the limits of unipath routing
Jonas W. Rabjerg   +3 more
openaire   +4 more sources

LTE‐based satellite communications in LEO mega‐constellations [PDF]

open access: yesInternational Journal of Satellite Communications and Networking, 2018
SummaryThe integration of satellite and terrestrial networks is a promising solution for extending broadband coverage to areas not connected to a terrestrial infrastructure, as also demonstrated by recent commercial and standardisation endeavours. However, the large delays and Doppler shifts over the satellite channel pose severe technical challenges ...
Alessandro Guidotti   +7 more
openaire   +6 more sources

Integration of Satellites in 5G through LEO Constellations [PDF]

open access: yesGLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017
The standardization of 5G systems is entering in its critical phase, with 3GPP that will publish the PHY standard by June 2017. In order to meet the demanding 5G requirements both in terms of large throughput and global connectivity, Satellite Communications provide a valuable resource to extend and complement terrestrial networks.
KODHELI, OLTJON   +2 more
openaire   +3 more sources

Ground-Assisted Federated Learning in LEO Satellite Constellations [PDF]

open access: yesIEEE Wireless Communications Letters, 2022
Submitted to IEEE Wireless Communications ...
Nasrin Razmi   +3 more
openaire   +2 more sources

Inter-Plane Satellite Matching in Dense LEO Constellations [PDF]

open access: yes2019 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.
Beatriz Soret   +2 more
openaire   +2 more sources

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