Results 31 to 40 of about 5,343,982 (289)

Modeling and Analysis of Hybrid GEO-LEO Satellite Networks [PDF]

open access: yes
In this letter, we consider a hybrid GEO-LEO satellite network where GEO and LEO satellites are distributed according to independent Poisson point processes and share the same frequency resources.
Jung, Dong-Hyun   +3 more
core   +3 more sources

Trustworthy handover in LEO satellite mobile networks

open access: yesICT Express, 2022
Recently, a low earth orbit (LEO) satellite network is one of major systems to provide seamless access for terrestrial network systems. In order to provide robust access, efficient handover mechanisms are essential. However, conventional mechanisms may introduce frequent handovers due to the rapid movement of satellites. To deal with this problem, this
Soyi Jung   +5 more
openaire   +2 more sources

Democratizing LEO Satellite Network Measurement

open access: yesACM SIGMETRICS Performance Evaluation Review
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

LEO Satellite Access Network (LEO-SAN) Towards 6G: Challenges and Approaches

open access: yes, 2022
With the rapid development of satellite communication technologies, the space-based access network has been envisioned as a promising complementary part of the future 6G network.
Xiao, Zhenyu   +6 more
core  

Overview of LEO satellite networking communication technology for direct-to-phone connectivity

open access: yesZhongguo kongjian kexue jishu
To overcome the limitations of traditional terrestrial communication coverage and establish seamless, all-time, all-domain connectivity capabilities through direct-to-phone connection of integrated space-ground services, this study conducts a systematic ...
LI Jingling   +8 more
doaj   +1 more source

Survey on Routing Algorithms for LEO Constellations Network [PDF]

open access: yesFayoum University Journal of Engineering
The fast growth of communication technology has resulted from the desire for information globalization. Satellite communication systems, which have the benefits of extensive coverage and minimal requirements on the geographical environment as compared to
Eman Elbehiry   +3 more
doaj   +1 more source

LEO satellite communication networks—a routing approach [PDF]

open access: yesWireless Communications and Mobile Computing, 2003
AbstractIn the modern world of telecommunications, the concept of wireless global coverage is of the utmost importance. However, real global coverage can only be achieved by satellite systems. Until recently, the satellites were in geostationary orbit and their high altitude could not allow real‐time communication such as cellular networks.
S. A. M. Makki   +2 more
openaire   +2 more sources

DTN for LEO satellite communications

open access: yes, 2011
Satellite communications are an interesting and promising application field for Delay/Disruption Tolerant Networking (DTN). Although primarily conceived for deep space communications and sensor networks, it was immediately recognized that DTN was ...
CAINI, CARLO   +3 more
core   +1 more source

Visibility of LEO satellites under different ground network distributions [PDF]

open access: yes, 2022
The Low Earth Orbit (LEO) satellites have shown various benefits in augmenting the Positioning, Navigation and Timing (PNT) service based on Global Navigation Satellite Systems (GNSSs).
Wang, Kan, El-Mowafy, Ahmed, Yang, Xuhai
core   +1 more source

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

Home - About - Disclaimer - Privacy