Results 11 to 20 of about 4,735 (260)

Darkening Low-Earth Orbit Satellite Constellations: A Review [PDF]

open access: yesIEEE Access, 2022
The proliferation of low-earth orbit (LEO) satellites and the LEO satellite internet will be a game-changer for the low-latency high-speed global internet. While this new generation of the satellite internet in conjunction with fifth generation network (5G) and sixth generation network (6G) enabled emerging technologies, such as precision farming and ...
Ali Lalbakhsh   +5 more
openaire   +3 more sources

Satellite laser ranging to low Earth orbiters: orbit and network validation [PDF]

open access: yesJournal of Geodesy, 2018
Satellite laser ranging (SLR) to low Earth orbiters (LEOs) provides optical distance measurements with mm-to-cm-level precision. SLR residuals, i.e., differences between measured and modeled ranges, serve as a common figure of merit for the quality assessment of orbits derived by radiometric tracking techniques. We discuss relevant processing standards
Daniel Arnold   +3 more
openaire   +6 more sources

Review of the Development of Low Earth Orbit Satellite Communication for Smart High-Speed Railway

open access: yes天地一体化信息网络, 2023
Low-earth orbit satellites have the advantages of wide bandwidth, low latency, and large coverage, making them very suitable as a supplement to ground cellular networks.Low-earth orbit satellites can meet the requirements of smart high-speed railway full
Zhaoyang SU   +5 more
doaj   +2 more sources

The Parameters Comparison of the “Starlink” LEO Satellites Constellation for Different Orbital Shells

open access: yesFrontiers in Communications and Networks, 2021
Communications-integrated satellite-terrestrial networks used for global broadband services have gained a high degree of interest from scientists and industries worldwide.
Shkelzen Cakaj, Shkelzen Cakaj
doaj   +1 more source

Spatial Geometry Design of a Low Earth Orbit Constellation for Iranian Regional Navigation Satellite System [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
The regional navigation satellite system (RNSS) is recently used in some countries to cover or enhance their local navigation. The most important satellite navigation systems to date are in the Earth medium orbit (MEO) and Earth synchronous Earth orbit ...
Reza Zardashti, Shiva Emami
doaj   +3 more sources

LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges

open access: yesGeo-spatial Information Science, 2021
With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge   +8 more
doaj   +1 more source

Joint optimization based satellite handover strategy for low earth orbit satellite networks

open access: yesIET Communications, 2021
Low earth orbit constellation satellite communication has the characteristics of low propagation delay, low path loss, low launch cost and wide range of applications.
Yifei Liu   +6 more
doaj   +1 more source

Performance Analysis and Evaluation of Inter-Satellite Optical Wireless Communication System (IsOWC) from GEO to LEO at Range 45000 km

open access: yesIEEE Photonics Journal, 2021
The importance of free-space optical (FSO) communication has increased during the last decade, introducing its unique features such as its high data rate, license-free spectrum, ease of deployability, and low power consumption.
Mohamed Mohsen Tawfik   +3 more
doaj   +1 more source

Challenges of Using the L-Band and S-Band for Direct-to-Cellular Satellite 5G-6G NTN Systems

open access: yesTechnologies, 2023
This article presents a comprehensive study of the potential utilization of the L-band and S-band frequency ranges for satellite non-terrestrial network (NTN) technologies.
Alexander Pastukh   +3 more
doaj   +1 more source

T3P: Demystifying Low-Earth Orbit Satellite Broadband

open access: yesCoRR, 2023
The Internet is going through a massive infrastructural revolution with the advent of low-flying satellite networks, 5/6G, WiFi7, and hollow-core fiber deployments. While these networks could unleash enhanced connectivity and new capabilities, it is critical to understand the performance characteristics to efficiently drive applications over them.
Shubham Tiwari   +10 more
openaire   +2 more sources

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