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Capacity Analysis of Multibeam Joint Decoding over Composite Satellite Channels
SnT -, University of Luxembourg.
SnT -, University of Luxembourg.
Chalmers University of Technology, Gothenburg, Sweden.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2011 (English)In: Proc. of the 45th Asilomar Conference on Signals, Systems and Computer, 2011Conference paper (Refereed)
Abstract [en]

The throughput of current multibeam satellite systemsis limited by self interference. Interference mitigationtechniques have the potential to significantly increase the spectralefficiency of these satellite communication systems. The presentcontribution investigates the ergodic capacity of the return linkof a multibeam satellite system, where full frequency reuse is employedand user signals are jointly processed at the gateway. Theproposed model incorporates correlated satellite antennas overRician channels which represent some inherent characteristics ofsatellite communications. Additionally, the effects of shadowingcaused by user mobility, are modeled via the lognormal distribution.Hence, a composite Rician/lognormal fading channel withfully correlated receive antennas is considered. For this channel, anew lower bound on the ergodic capacity is analytically deducedand verified through simulations.

Place, publisher, year, edition, pages
Keyword [en]
satellite communications, multibeam satellite, Interference mitigation techniques, spectral efficiency, Rician channels, Rician/lognormal fading channel
National Category
Telecommunications Signal Processing
URN: urn:nbn:se:kth:diva-72507ScopusID: 2-s2.0-84861306234OAI: diva2:487706
45th Asilomar Conference on Signals, Systems and Computers. Monterey, California. November 6-9 2011
QC 20120413Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2012-04-13Bibliographically approved

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Ottersten, Björn
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