Results 31 to 40 of about 3,008 (290)

On-Board Federated Learning for Dense LEO Constellations

open access: yesICC 2022 - IEEE International Conference on Communications, 2022
Mega-constellations of small-size Low Earth Orbit (LEO) satellites are currently planned and deployed by various private and public entities. While global connectivity is the main rationale, these constellations also offer the potential to gather immense amounts of data, e.g., for Earth observation. Power and bandwidth constraints together with motives
Nasrin Razmi   +3 more
openaire   +3 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

Study on remote sensing satellites random access to internet constellation and on-orbit intelligent processing

open access: yesDianxin kexue, 2022
The low earth orbit (LEO) satellite Internet constellation is a hot spot in current global research.And it is highly anticipated that the LEO satellite Internet constellation supports random access to remote sensing satellites and direct on-orbit ...
Xiaoyu CHANG   +5 more
doaj   +2 more sources

Evaluation of delay tolerant network routing protocols for data streaming through LEO constellation

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2023
In the Era of Mega Low Earth Orbit (LEO) satellite constellation, the efficient networking through Inter-Satellite Links (ISLs) plays a vital role in its mission success.
Hager M. Elhalafawy   +4 more
doaj   +1 more source

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   +3 more sources

Bridging Clock Gaps in Mega-Constellation LEO Satellites [PDF]

open access: yes, 2022
In recent years, mega-constellation Low Earth Orbit (LEO) satellites have been proposed as an augmentation to the Global Navigation Satellite System (GNSS) for positioning on the ground, especially for those in measurement environments with limited ...
Wang, Kan   +5 more
core   +1 more source

Demand-Aware Flexible Handover Strategy for LEO Constellation

open access: yes2023 IEEE International Conference on Communications Workshops (ICC Workshops), 2023
peer ...
Tedros Salih Abdu   +5 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

LEO Constellation-Augmented Multi-GNSS for 3D Water Vapor Tomography

open access: yes, 2021
Global navigation satellite systems (GNSS) water vapor tomography is an important technique to obtain the three-dimensional distribution of atmospheric water vapor.
Xiaohong Zhang   +4 more
core   +1 more source

Performance Assessment of Multi-GNSS PPP Ambiguity Resolution with LEO-Augmentation

open access: yesRemote Sensing, 2023
The fast motion of low Earth orbit (LEO) satellites provides rapid geometric changes in a short time, which can accelerate the initialization of precise point positioning (PPP).
Qin Li   +4 more
doaj   +1 more source

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