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Capacity analysis of high-throughput satellite links for Earth observation missions

Katona, Zoltán and Kourogiorgas, Charilaos and Panagopoulos, Athanasios and Jeannin, Nicolas (2015) Capacity analysis of high-throughput satellite links for Earth observation missions. International Journal of Satellite Communications and Networking, 33 (5), pp. 429-449. Wiley. DOI: 10.1002/sat.1125 ISSN 1542-0973

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/sat.1125/abstract


Earth observation missions are important for economy and science. The data collected by such satellites are used in agriculture, maritime services, disaster and environmental monitoring, and so on. Earth observation satellites are low Earth orbit (LEO) satellites typically with a sun-synchronous, polar orbit. The amount of collected data has significantly increased over the years. This calls for finding new ways to increase the transfer rate on the satellite link. As a consequence, the present paper analyzes the possibility of moving from low to high radio frequencies. In addition, different topologies are analyzed, such as the conventional direct LEO satellite to ground station link, and the data relay link from the LEO satellite to the ground station through a geostationary Earth orbit (GEO) satellite. The present paper thus analyzes the foreseeable performance of Ka-band and Q-band direct links, and Ka-band, Q-band, and W-band data relay links. The following channel adaptation techniques were assumed during the analysis: adaptive coding and modulation and variable coding and modulation. According to the results, the link margin is significantly high in clear sky, reaching at least 7dB, even using the least robust modulation and coding (ModCod) scheme, which applies 1024-amplitude and phase-shift keying (1024-APSK) modulation scheme. As a consequence, it shall be important in the future to further increase the spectral efficiency of the link, by, for example, reducing phase noise in order to enable even higher-order modulation schemes. Copyright © 2015 John Wiley & Sons, Ltd.

Item URL in elib:https://elib.dlr.de/98544/
Document Type:Article
Title:Capacity analysis of high-throughput satellite links for Earth observation missions
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:3 September 2015
Journal or Publication Title:International Journal of Satellite Communications and Networking
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1002/sat.1125
Page Range:pp. 429-449
Series Name:Special Issue: Main Results of Call-off-Order 3 (CoO3) in SatNEx III
Keywords:Earth observation;high-throughput;direct link;data relay link;performance analysis
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Multimedia Satellitennetze
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Katona, Dr.-Ing. Zoltán
Deposited On:13 Oct 2015 15:53
Last Modified:08 Mar 2018 18:39

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