User grouping and optimization-based pilot scheduling for mitigating the pilot contamination in massive multi cell MIMO systems. - Pradeep Kumar Ambala; Srinivasulu Tadisetty (Int. J. Model. Simul. Sci. Comput., 2020)

Hybrid optimization-based pilot scheduling for reducing pilot contamination in massive MIMO systems. - Pradeep Kumar Ambala; Srinivasulu Tadisetty (Int. J. Wavelets Multiresolution Inf. Process., 2020)