Iterative blind demodulation of synchronous CDMA
Ejaz Khan, Dirk T. M. Slock · 2003
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.