Results 11 to 20 of about 1,814 (156)

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   +3 more
doaj   +3 more sources

Matching-Based Resource Allocation for Satellite–Ground Network

open access: yesSensors, 2022
With the vigorous development of information and communication technology, mobile internet has undergone tremendous changes. How to achieve global coverage of the network has become the primary problem to be solved.
Huixia Ding   +8 more
doaj   +1 more source

Satellite handover techniques for LEO networks [PDF]

open access: yesInternational Journal of Satellite Communications and Networking, 2004
AbstractLow earth orbit satellite constellations could play an important role in future mobile communication networks due to their characteristics, such as global coverage and low propagation delays. However, because of the non‐stationarity of the satellites, a call may be subjected to handovers, which can be cell or satellite handovers.
Papapetrou, E.   +3 more
openaire   +2 more sources

Fast-Convergence Reinforcement Learning for Routing in LEO Satellite Networks

open access: yesSensors, 2023
Fast convergence routing is a critical issue for Low Earth Orbit (LEO) constellation networks because these networks have dynamic topology changes, and transmission requirements can vary over time.
Zhaolong Ding   +4 more
doaj   +1 more source

Research on Dynamic Virtualization Distributed Mobility Management Method for LEO Satellite Network

open access: yes天地一体化信息网络, 2020
With the commercialization of 5G,the integration of satellite communication and ground 5G has become a key research direction in the industry.Low earth orbit satellite network can cover the whole world and communicate with anyone at any time and anywhere.
Hongtao ZHU, Qing GUO
doaj   +2 more sources

A wised routing protocols for LEO satellite networks [PDF]

open access: yes2015 10th Asian Control Conference (ASCC), 2015
The 10th Asian Control Conference (ASCC), Universiti Teknologi Malaysia ...
Firouzja, Saeid Aghaei Nezhad   +3 more
openaire   +2 more sources

Application of the Power Grid Business Carrying on Low Earth Orbit Broadband Satellite Internet

open access: yes天地一体化信息网络, 2023
LEO (Low-earth-orbit) broadband satellite internet can provide a lot of user with all-time network coverage, broadband access and information transport service, which has the advantage of high capacity, broad band, low delay and high elasticity as space ...
Liang ZHU   +5 more
doaj   +2 more sources

Performance Analysis of LEO Satellite Networks [PDF]

open access: yes, 2002
We present an analytical model for computing call blocking probabilities in a LEO satellite network that carries voice calls. Both satellite-fixed and earth-fixed constellations with inter-orbit links and hand-offs are considered. The model is analyzed approximately by decomposing it into sub-systems.
A. Halim Zaim   +2 more
openaire   +1 more source

Multiservice on-demand routing in LEO satellite networks [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2009
In this paper, a distributed on-demand routing protocol for Low Earth Orbit (LEO) satellite systems, named multiservice on-demand routing (MOR), is proposed and evaluated. The proposed protocol adjusts the routing procedure to the QoS requirements of different traffic classes.
Karapantazis, S.   +2 more
openaire   +2 more sources

GNSS rapid precise point positioning enhanced by low Earth orbit satellites

open access: yesSatellite Navigation, 2023
The Low Earth Orbit (LEO) satellites can be used to effectively speed up Precise Point Positioning (PPP) convergence. In this study, 180 LEO satellites with a global distribution are simulated to evaluate their contribution to the PPP convergence.
Ju Hong   +7 more
doaj   +1 more source

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