Channel estimation and detection for multibeam satellite communications

In this paper, a channel estimation method and a detection technique for multibeam communications systems are developed. The channel estimation uses the output of a beam former to determinate the channels parameters for each active user in the system. The detection technique assures the determinatio...

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Bibliographic Details
Published inAPCCAS 2010-2010 IEEE Asia Pacific Conference on Circuits and Systems pp. 366 - 369
Main Authors Chaouech, H, Bouallegue, R
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2010
Subjects
Amplitude estimation
antenna array
Antenna arrays
Arrays
Beam forming
Channel estimation
Multiuser detection
null steering
Phase estimation
Structural beams
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Summary:In this paper, a channel estimation method and a detection technique for multibeam communications systems are developed. The channel estimation uses the output of a beam former to determinate the channels parameters for each active user in the system. The detection technique assures the determination of QPSK symbols after compensation of channel effects. An antenna array is considered at the receiver with a null steering beam former. Mathematical presentations of the transmission model and channel estimation and detection algorithms detail the developed techniques. In order to evaluate the performance of channel estimation and detection methods, we have simulated an FDMA multibeam system under an AWGN environment. Simulation results show the good performance and the robustness of these techniques with equal power signals.
ISBN:142447454X
9781424474547
DOI:10.1109/APCCAS.2010.5775068