Implementation of Iterative Channel Equalization for MIMO Systems in WCDMA Downlink
Cavallaro, Joseph R.
de Baynast, Alexandre
In downlink transmission, channel multipaths destroy the orthogonality between users causing Multiple Access Interference (MAI). In order to restore the orthogonality between the users, chip-level channel equalization based on the iterative conjugate-gradient (CG) algorithm has been proposed in [Heikkilla '02]. We extend this approach to the multiple transmit antenna case and propose 16-bit fixed point implementation. Simulations show the robustness of the fixed point implementation of the proposed algorithm. Moreover, this approach outperforms RAKE receiver in all cases.
Citable link to this pagehttps://hdl.handle.net/1911/20203
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- ECE Publications