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Resource Allocation for Cognitive LEO Satellite Systems: Facilitating IoT Communications [PDF]

open access: yesSensors, 2023
Due to the characteristics of global coverage, on-demand access, and large capacity, the low earth orbit (LEO) satellite communication (SatCom) has become one promising technology to support the Internet-of-Things (IoT).
Bowen Cai   +3 more
doaj   +2 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

Optimal Progressive Pitch for OneWeb Constellation with Seamless Coverage

open access: yesSensors, 2022
Large-scale broadband low earth orbit (LEO) satellite systems have become a possibility due to decreased launch costs and rapidly evolving technology. Preventing huge LEO satellite constellations from interfering with the geostationary earth orbit (GSO ...
Cheng Zou   +5 more
doaj   +1 more source

Downlink Coverage and Rate Analysis of Low Earth Orbit Satellite Constellations Using Stochastic Geometry [PDF]

open access: yes, 2020
As low Earth orbit (LEO) satellite communication systems are gaining increasing popularity, new theoretical methodologies are required to investigate such networks' performance at large.
Angervuori, Ilari   +4 more
core   +2 more sources

Real-Time Estimation of Low Earth Orbit (LEO) Satellite Clock Based on Ground Tracking Stations

open access: yesRemote Sensing, 2020
The rapid movement of low Earth orbit (LEO) satellite can improve geometric diversity, which contributes to the rapid convergence of Global Navigation Satellite System (GNSS) precise point positioning (PPP). However, the LEO onboard receiver clock cannot
Zhixin Yang   +7 more
doaj   +1 more source

Controlling Antenna Sidelobe Radiation to Mitigate Ku-Band LEO-to-GEO Satellite Interference

open access: yesIEEE Access, 2023
Low-Earth orbiting (LEO) satellites now can provide broadband service anywhere in the world, but they must share the radio spectrum with geosynchronous Earth-orbiting (GEO) satellites.
Alex Hills   +3 more
doaj   +1 more source

Switched Ethernet Networking over LEO Satellite [PDF]

open access: yes2005 2nd International Symposium on Wireless Communication Systems, 2005
Satellite onboard switching capabilities, and their possibility to enable "over-the-air" networks, are a strongly innovative achievement of modern satellite communication. The exploitation of satellite networking is especially relevant in the case of low Earth orbit satellites (LEO), where the reduced latency makes a LEO mesh network highly appealing ...
Mancuso, V   +3 more
openaire   +2 more sources

Management of MEC Service and Optimization of Mission Migration in LEO Satellite Networks

open access: yes天地一体化信息网络, 2022
Low earth orbit (LEO) satellites play an important role in the communication of earth observation and wide area coverage because of their advantages of short transmission delay and low deployment cost.Due to limited size and weight of LEO satellite ...
Zhihui LIU   +5 more
doaj   +2 more sources

A survey on networking key technologies for LEO satellite network

open access: yesDianxin kexue, 2023
With the continuous development of information and communication technology, the requirements for expanding network coverage and reducing communication delay are becoming higher and higher.Low earth orbit (LEO) satellite networking, as a network system ...
Ruihong JIANG   +3 more
doaj   +2 more sources

Validation on Residual Variation and Covariance Matrix of USSTRATCOM Two Line Element [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Satellite operating agencies are constantly monitoring conjunctions between satellites and space objects. Two line element (TLE) data, published by the Joint Space Operations Center of the United States Strategic Command, are available as raw data for a ...
Hyeonjeong Yim, Daewon Chung
doaj   +1 more source

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