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In multiuser TDD MIMO downlink communications, system performance suffers from multiuser interference(MUI) and other-cell interference(OCI). This paper proposes designing a precoder to jointly suppress MUI and OCI. Firstly, a precoding matrix is designed for multiuser interference suppression, with the help of the QR decomposition of generalized MMSE channel inversion. And then, using a signal leakage...
In order to reduce the inter-user interference in multiuser Multiple-Input Multiple-Output (MIMO) wireless communication systems, e.g., MIMO-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems, it is often desirable to the complex pre-processing at the transmitter. In this paper, we propose a multi-user beamfoming algorithm with sub-codebook selection. Based on the minimal leakage criterion,...
A block modulated (BM) algorithm is proposed for STBC block transmission system combined with single carrier frequency domain equalization (SC-FDE) with two transmit antennas and one receive antenna, and the system redundancy caused by cyclic prefix (CP) is evidently reduced. At the transmitter, multiple blocks are jointly modulated and framed together, so one single CP is shared by the multiple blocks...
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