Results 1 to 10 of about 3,145 (290)

Fast-Convergence Reinforcement Learning for Routing in LEO Satellite Networks [PDF]

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   +6 more sources

A Novel Feeder Link Handover Strategy for Backhaul in LEO Satellite Networks [PDF]

open access: yesSensors, 2023
Thanks to their wide coverage and relatively low latency compared to geosynchronous satellites, Low Earth Orbit (LEO) satellite networks have been regarded as one of the most promising solutions to provide global broadband backhaul for mobile users and ...
Yuke Zhou   +4 more
doaj   +4 more sources

Survey on Optimization Methods for LEO-Satellite-Based Networks with Applications in Future Autonomous Transportation

open access: yesSensors, 2022
Future autonomous transportation is one of the most demanding application areas in terms of connectivity, as it has to simultaneously meet stringent criteria that do not typically go hand in hand, such as high throughput, low latency, high coverage ...
Kaan Çelikbilek   +4 more
doaj   +3 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   +4 more
doaj   +2 more sources

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.
F -N Pavlidou, E Papapetrou
exaly   +3 more sources

Computation Offloading and Resource Allocation Based on P-DQN in LEO Satellite Edge Networks

open access: yesSensors, 2023
Traditional low earth orbit (LEO) satellite networks are typically independent of terrestrial networks, which develop relatively slowly due to the on-board capacity limitation.
Xu Yang   +5 more
doaj   +3 more sources

Optimizing Time-Sensitive Traffic Scheduling in Low-Earth-Orbit Satellite Networks [PDF]

open access: yesSensors
In contrast to terrestrial networks, the rapid movement of low-earth-orbit (LEO) satellites causes frequent changes in the topology of intersatellite links (ISLs), resulting in dynamic shifts in transmission paths and fluctuations in multi-hop latency ...
Wei Liu   +4 more
doaj   +2 more sources

An Adaptive Dynamic Channel Allocation Algorithm Based on a Temporal–Spatial Correlation Analysis for LEO Satellite Networks

open access: yesApplied Sciences, 2022
Low Earth orbit (LEO) satellites that can be used as computing nodes are an important part of future communication networks. However, growing user demands, scarce channel resources and unstable satellite–ground links result in the challenge to design an ...
Juan Wang   +3 more
doaj   +1 more source

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

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

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