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A Blind Channel Estimation Algorithm for Space-Time Coded MC-CDMA Receivers

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3 Author(s)
Medina, C.A. ; Centro de Estudos em Telecomun. (CETUC), Pontificia Univ. do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil ; Vinhoza, T.T.V. ; Sampaio-Neto, R.

In this paper we proposed a linearly constrained minimum variance receiver for a space-time coded multicarrier (MC) CDMA system in frequency selective fading channels. It is shown that in the proposed receiver the channel can be blindly estimated as the eigenvector that corresponds to the maximum eigenvalue of an autocorrelation matrix, and then, efficient algorithms for subspace tracking can be used. Computer simulations shows that the proposed channel estimation algorithm achieves performance comparable to traditional algorithms with less computational cost.

Published in:

Communications, 2009. ICC '09. IEEE International Conference on

Date of Conference:

14-18 June 2009