Detection Techniques for Massive Machine-Type Communications: Challenges and Solutions Di Renna, Roberto B. ; Bockelmann, Carsten ; de Lamare, Rodrigo C. ; Dekorsy, Armin Abstract Publication: IEEE Access Pub Date: 2020 DOI: 10.1109/ACCESS.2020.3027523 Bibcode: 2020IEEEA...8r0928D