Results 1 to 10 of about 805 (149)

LEO Satellite Constellation for Internet of Things

open access: yesIEEE Access, 2017
Internet of Things (IoT) is one of the evolutionary directions of the Internet. This paper focuses on the low earth orbit (LEO) satellite constellation-based IoT services for their irreplaceable functions.
Zhicheng Qu, Haotong Cao
exaly   +4 more sources

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

Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

open access: yesSatellite Navigation, 2022
Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. Instead of using onboard Global Navigation Satellite System observations, this contribution treats the LEO satellite constellation independently, using Inter ...
Xingchi He   +2 more
exaly   +2 more sources

Research on Design and Staged Deployment of LEO Navigation Constellation for MEO Navigation Satellite Failure

open access: yesRemote Sensing
Low Earth orbit (LEO) satellites have unique advantages in navigation because of their high signal intensity and rapid geometric changes in a short period.
Wen Xue   +4 more
exaly   +3 more sources

Caching Policy in Low Earth Orbit Satellite Mega-Constellation Information-Centric Networking for Internet of Things [PDF]

open access: yesSensors
Information-Centric Networking (ICN) is the emerging next-generation internet paradigm. The Low Earth Orbit (LEO) satellite mega-constellation based on ICN can achieve seamless global coverage and provide excellent support for Internet of Things (IoT ...
Hongqiu Luo, Tingting Yan, Shengbo Hu
doaj   +2 more sources

Analytical design and performance analysis of LEO mega chain satellite constellation

open access: yesXibei Gongye Daxue Xuebao, 2022
With the development of microsatellite technology and the growth of ground reconnaissance demand, the rapid design of a LEO constellation with minimum satellite number, low revisit time (within 10 minutes), and permanent inter-satellite links has become ...
ZHENG Pengfei, CHEN Hongyu, GUO Chongbin
doaj   +1 more source

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

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

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

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   +4 more sources

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