DocumentCode
383651
Title
Iterative blind demodulation of synchronous CDMA
Author
Khan, Ejaz ; Slock, Dirk T M
Author_Institution
Mobile Commun. Dept., Inst. Eure com, Sophia-Antipolis, France
Volume
4
fYear
2002
fDate
15-18 Sept. 2002
Firstpage
1527
Abstract
In this paper iterative blind estimation of the complex amplitudes of the users is considered. A Gaussian mixture model formulation of the problem is introduced and the expectation maximization (EM) algorithm for estimation of parameters for a Gaussian mixture observation model is used. Simulation results compare the performance of the proposed algorithm with the Cramer-Rao bound.
Keywords
Gaussian processes; code division multiple access; demodulation; iterative methods; multiuser channels; optimisation; parameter estimation; Cramer-Rao bound; Gaussian mixture model; complex amplitudes; expectation maximization algorithm; iterative blind demodulation; iterative blind estimation; parameter estimation; simulation results; synchronous CDMA; wireless communication systems; Amplitude estimation; Code division multiplexing; Demodulation; Iterative algorithms; Least squares approximation; Matrix decomposition; Maximum likelihood estimation; Mobile communication; Multiaccess communication; Parameter estimation;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN
0-7803-7589-0
Type
conf
DOI
10.1109/PIMRC.2002.1045434
Filename
1045434
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