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This letter presents a method to design receive beamformer for multiuser Tomlinson-Harashima precoding systems, where users have multiple receive antennas. The design is based on the Cholesky decomposition with minimum mean-squared error criterion where the beamformers are generated successively. The proposed method provides comparable bit-error rate performance with that of iterative algorithms,...
Recently there is a trend to use Tomlinson-Harashima preceding (THP) to achieve better performance with full channel state information known at transmit side. In general, performance of THP precoding is governed by the the minimum absolute diagonal elements of the triangle matrix which is derived from QR decomposition to the channel matrix. In this paper we propose a new THP precoding scheme in which...
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