Channel estimation;Training;MIMO communication;Antennas;Channel models;Estimation;Covariance matrices;Channel sparsity;correlated fading;channel estimation;training design;compressive sensing;pilot contamination;performance bounds;massive MIMO

Exploiting the Massive MIMO Channel Structural Properties for Minimization of Channel Estimation Error and Training Overhead
Exploiting massive multiple-input-multiple-output (MIMO) gains come at the expense of obtaining accurate channel estimates at the base …
Samer Bazzi, Stelios Stefanatos, Luc Le Magoarou, Salah Eddine Hajri, Mohamad Assaad, Stéphane Paquelet, Gerhard Wunder, Wen Xu
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