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Linear and non-linear precoding/decoding for MIMO systems using the fading correlation at the transmitter

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3 Author(s)
Simeone, O. ; Dipt. di Elettronica e Informazione, Politecnico di Milano, Italy ; Spagnolini, U. ; Bar-Ness, Y.

A transceiver structure for MIMO systems that comprises linear/non-linear precoding/decoding is optimized according to the MMSE criterion under the assumption that only long-term channel state information (or LT-CSI, i.e., fading channel and noise correlation matrices) is available at the transmitter. The structure generalizes different techniques known from the literature, such as BLAST, linear precoding and decoding and Tomlinson-Harashima precoding. Performance comparison of these known techniques and the proposed scheme, carried out by means of simulations, shows that relevant benefits can be obtained by taking advantage of LT-CSI at the transmitter.

Published in:

Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on

Date of Conference:

15-18 June 2003