Abstract
An iterative linear transceiver design scheme under sum mean squared error minimisation criterion is proposed. By modifying the structure of the transceiver, the complex computation of the Lagrangian multiplier within the traditional MMSE transceiver design can be effectively obviated, and thus the whole system complexity can be greatly reduced. Because the Lagrangian multiplier has an analytical solution, the transmit precoding matrix also has a closed-form solution, and can be solved easily with fixed-point iterations.
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