Maitane Barrenechea

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In recent years the interest in developing efficient algorithms for the multiple-input multiple-output (MIMO) broadcast channel has arisen. Vector precoding (VP) techniques have shown very promising performance results, but the perturbation process inherent in these type of non-linear systems hinders their efficient implementation. The key to achieving a(More)
In this paper we consider the design of minimum mean square error (MMSE) transceivers for non-regenerative multiuser multiple-input multiple-output (MIMO) relay systems, where the main challenge resides in the joint optimal design of the precoder to be used at the base station and the relaying algorithms. We propose the use of non-linear precoding(More)
The nonlinear vector precoding (VP) technique has been proven to achieve close-to-capacity performance in multiuser multiple-input multiple-output (MIMO) downlink channels. The performance benefit with respect to its linear counterparts stems from the incorporation of a perturbation signal that reduces the power of the precoded signal. The computation of(More)