Results 11 to 20 of about 3,108 (295)

Democratizing LEO Satellite Network Measurement

open access: yesACM SIGMETRICS Performance Evaluation Review, 2023
Low Earth Orbit (LEO) satellite networks are quickly gaining traction with promises of impressively low latency, high bandwidth, and global reach. However, the research community knows relatively little about their operation and performance in practice. The obscurity is largely due to the high barrier of entry for measuring LEO networks, which requires
Liz Izhikevich   +4 more
openaire   +3 more sources

A Fast Time Synchronization Method for Large Scale LEO Satellite Networks Based on A Bionic Algorithm

open access: yesPhotonics
A fast time synchronization method for large-scale LEO satellite networks based on a bionic algorithm is proposed. Because the inter-satellite links are continuously established and interrupted due to the relative motion of the satellites, the topology ...
Yue Xu   +6 more
doaj   +2 more sources

Handover Scheme in LEO Satellite Networks Based on QoE for Streaming Media Services. [PDF]

open access: yesSensors (Basel)
The development of satellite communications has received considerable attention in recent years. Early satellite communications were dominated by voice and low-speed data services, but now they must support high-speed multimedia services. Low Earth Orbit
Feng H, Zhu L.
europepmc   +2 more sources

Time-Sensitive Networking Mechanism Aided by Multilevel Cyclic Queues in LEO Satellite Networks

open access: yes, 2023
With the proliferation of low-Earth-orbit (LEO) satellites, existing satellite networks need to be enhanced to better handle time-sensitive flows (TSFs).
Shangyi Li   +6 more
core   +1 more source

Rethinking LEO Mega-Constellation Routing to Provide Fast Internet Access Services

open access: yesSensors, 2023
In the realm of providing space-based internet access services, utilizing large-scale low Earth orbit (LEO) satellite networks have emerged as a promising solution for bridging the digital divide and connecting previously unconnected regions.
Zijian Yang   +3 more
doaj   +1 more source

Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

open access: yes, 2022
In recent years, the ultra-dense low Earth orbit (LEO) satellite communication (UD-LSC) networks such as SpaceX and OneWeb are under rapid development to provide worldwide and broadband services.
Jianfei Tong   +4 more
core   +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

A Two-Step Handover Strategy for GEO/LEO Heterogeneous Satellite Networks Based on Multi-Attribute Decision Making

open access: yes, 2022
Low Earth Orbit (LEO) satellites can provide high-speed and low-delay services for terrestrial users; however, the rapid movement of LEO satellites and the insufficient size of the LEO constellations incurs the instability of the transmission links.
Liangyi Zhang   +3 more
core   +1 more source

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.
Abdul Halim Zaim   +2 more
openaire   +1 more source

Random Routing Algorithm for Enhancing the Cybersecurity of LEO Satellite Networks

open access: yes, 2023
The recent expansion of networks of low-earth orbit (LEO) satellites such as Starlink, OneWeb, and Telesat and the evolution of communication systems toward B5G and 6G with densely interconnected devices could generate opportunities for various cyber ...
Yuval Saar   +3 more
core   +1 more source

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