Results 21 to 30 of about 3,185,777 (300)

SatERN: a PEP-less solution for satellite communications [PDF]

open access: yes, 2011
In networks with very large delay like satellite IPbased networks, standard TCP is unable to correctly grab the available resources. To overcome this problem, Performance Enhancing Proxies (PEPs), which break the end-to-end connection and simulate a ...
Lopez Pacheco, Dino   +8 more
core   +1 more source

"Internet from Space" without Inter-satellite Links

open access: yesProceedings of the 19th ACM Workshop on Hot Topics in Networks, 2020
Buoyed by advances in space technology, several firms are planning satellite constellations to offer broadband Internet service. While these developments are happening quickly, there are also many uncertainties about the design of these networks. A key open question is whether or not they will incorporate direct connectivity between satellites, instead
Hauri, Yannick   +3 more
openaire   +2 more sources

A delay model for satellite constellation networks with inter-satellite links [PDF]

open access: yes, 2009
Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC).
Romain Hermenier   +5 more
core   +1 more source

Terabyte capacity-enabled (10 x 400 Gbps) Is-OWC system for long-haul communication by incorporating dual polarization quadrature phase shift key and mode division multiplexing scheme.

open access: yesPLoS ONE, 2022
Inter-satellite optical wireless communication (Is-OWC) links can become promising solutions to realize the next-generation high-speed communication services.
Sushank Chaudhary   +5 more
doaj   +2 more sources

On the Integration of Random Access and DAMA Channels for the Return Link of Satellite Networks [PDF]

open access: yes, 2013
Recent advances in Random Access (RA), improving throughput and loss rates, make the usage of such technique particularly interesting to complement Demand Assigned Multiple Access (DAMA) channels for the return link of satellite systems.
Munari, Andrea   +3 more
core   +1 more source

Inter-American Development Bank Annual Report 2021: Financial Statements

open access: yes, 2022
This report is the second of two volumes which together constitute the Inter-American Development Bank\u27s 2021 Annual Report. This report contains the management\u27s discussion and analysis of the Bank\u27s ordinary capital and financial ...
Inter-American Development Bank
core   +1 more source

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]

open access: yes, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll   +13 more
core   +1 more source

LEO laser microwave hybrid inter-satellite routing strategy based on modified Q-routing algorithm

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
Low earth orbit (LEO) satellite communication networks require huge load capacity and information processing speed to carry global communication traffic. Inter-satellite links and the on-board processing are the key technologies to achieve this goal, but
Fei Zheng   +4 more
doaj   +1 more source

Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite

open access: yesJournal of Astronomy and Space Sciences, 2020
Satellite optical communication has gained significant attention owing to its many quality features (e.g., a larger bandwidth, license free spectrum, higher data rate, and better security) compared to satellite microwave communication.
Hyung-Chul Lim   +5 more
doaj   +1 more source

Atmospheric influence on a laser beam observed on the OICETS – ARTEMIS communication demonstration link [PDF]

open access: yesAtmospheric Measurement Techniques, 2010
In 2006 bi-directional optical inter-satellite communication experiments were conducted between the Japan Aerospace Exploration Agency (JAXA) Optical Inter-orbit Communications Engineering Test Satellite (OICETS) and the European Space Agency (ESA) multi-
A. Löscher
doaj   +1 more source

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