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Reduced complexity blind channel estimation for adaptive constrained minimum variance receivers in MC-CDMA systems

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3 Author(s)
Medina, C.A. ; Center of Telecommun. Studies (CETUC), Pontifical Catholic Univ. of Rio de Janeiro (PUC-Rio), Rio de Janeiro ; Vinhoza, T.T.V. ; Sampaio-Neto, R.

In this paper we propose a blind adaptive channel estimator for multicarrier CDMA systems. The proposed algorithm is derived from the stochastic gradient solution for the linearly constrained minimum variance detector and it is shown to present lower computational complexity when compared to a well-known solution. It is shown through computer simulations that both the channel estimation and receiver filter achieve a slightly better performance than previously proposed methods.

Published in:

Signal Processing Advances in Wireless Communications, 2008. SPAWC 2008. IEEE 9th Workshop on

Date of Conference:

6-9 July 2008