3 Hits in 4.5 sec

A Survey on Non-Geostationary Satellite Systems: The Communication Perspective [article]

Hayder Al-Hraishawi, Houcine Chougrani, Steven Kisseleff, Eva Lagunas, Symeon Chatzinotas
2022 arXiv   pre-print
The next phase of satellite technology is being characterized by a new evolution in non-geostationary orbit (NGSO) satellites, which conveys exciting new communication capabilities to provide non-terrestrial  ...  , which can potentially enable latency-critical applications to be provided through satellites.  ...  All of the aforementioned NGSO advantages revive the notion of utilizing large fleets of lower orbit satellites to provide reliable, low-latency, and high-speed Internet from space, which has re-gained  ... 
arXiv:2107.05312v4 fatcat:3fazimzfffgljom462z4vhwno4

Concerns about ground based astronomical observations: a step to safeguard the astronomical sky [article]

Stefano Gallozzi INAF-Osservatorio Astronomico di Roma, INAF-Osservatorio Astronomico di Brera
2020 arXiv   pre-print
With the huge amount of about 50,000 new artificial satellites for telecommunications planned to be launched in Medium and Low Earth Orbit, the mean density of artificial objects will be of >1 satellite  ...  This article aims to highlight the impact for ground based astronomical observations in different windows of the electromagnetic spectrum coming from the deployment of fleets of telecommunications satellites  ...  Satel- lites communicate with neighboring satellites via Ka band inter-satellite links.  ... 
arXiv:2001.10952v2 fatcat:3ductqp2nzdt5eqowcx5d64vxi

6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities [article]

Harsh Tataria and Mansoor Shafi and Andreas F. Molisch and Mischa Dohler and Henrik Sjöland and Fredrik Tufvesson
2021 arXiv   pre-print
The idea of providing internet from space using large constellations of LEO satellites has re-gained popularity in the last years (previous attempts such as the Iridium project in the late 1990s had failed  ...  with the satellites. (2) Satellite bandwidth capability: The inter-satellite links and terrestrial internet infrastructure in some domains could be a bottleneck for satellite capacity. (3) Admission control  ... 
arXiv:2008.03213v2 fatcat:whhsaotwszcjlfdx4nwc2qpj6y