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Bounds on the diversity-multiplexing tradeoff (DMT) curves of the Bell labs layered space-time (BLAST) architecture are analyzed, where zero-forcing successive interference cancellation (ZF-SIC) receivers are employed. The DMT curve in the presence of error propagation caused by SIC process is derived under the assumption that each transmit antenna employs Gaussian random coding and the interference...
In this work, we present two high-rate quasi-orthogonal space-time coding (STC) schemes for three and four transmit antennas which are designed in conjunction with the serial interference cancellation (SIC) based receiver. The symbols of the proposed STCs are of judiciously designed diversity order which can be effectively exploited by the SIC based receiver to cancel interference as well as to obtain...
In this work, we propose two high-rate quasi-orthogonal space-time coding (STC) schemes which are designed in conjunction with the successive interference cancellation (SIC) based receiver. The symbols of the proposed STC are of judiciously designed diversity order which can be effectively exploited by the SIC based receiver to cancel interference as well as to obtain diversity gain. The proposed...
We study the problem of mean square error (MSE) transceiver design for point-to-multipoint transmission in multiuser multiple-input-multiple-output (MIMO) systems. We focus on four optimization problems: minimizing the maximum weighted layer-wise or user-wise MSE under a total power constraint; minimizing the total transmit power subject to a set of layer-wise or user-wise MSE requirements. The non-convexity...
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