JOINT OPTIMIZATION OF LINEAR PRE-FILTERING AND NONLINEAR VECTOR PERTURBATION FOR MIMO MULTIUSER PRECODING

摘要

A method includes jointly optimizing a vector perturbation and a linear pre-filter, applying said vector perturbation to a transmit data vector (s) to produce an output vector, applying said linear pre-filter (G) to said output vector to produce a transmit signal (x), and computing a scaling factor (?).