Capacity analysis of multibeam joint decoding over composite satellite channels
Paper in proceedings, 2011

The throughput of current multibeam satellite systems is limited by self interference. Interference mitigation techniques have the potential to significantly increase the spectral efficiency of these satellite communication systems. The present contribution investigates the ergodic capacity of the return link of a multibeam satellite system, where full frequency reuse is employed and user signals are jointly processed at the gateway. The proposed model incorporates correlated satellite antennas over Rician channels which represent some inherent characteristics of satellite communications. Additionally, the effects of shadowing caused by user mobility, are modeled via the lognormal distribution. Hence, a composite Rician/lognormal fading channel with fully correlated receive antennas is considered. For this channel, a new lower bound on the ergodic capacity is analytically deduced and verified through simulations.


Dimitrios Christopoulos

University of Luxembourg

Symeon Chatzinotas

University of Luxembourg

Michail Matthaiou

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Signal Processing

Björn E. Ottersten

Royal Institute of Technology (KTH)

University of Luxembourg

Conference Record - Asilomar Conference on Signals, Systems and Computers

10586393 (ISSN)

1795-1799 6190331

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering





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