Graph Coloring Based Pilot Reuse among Interfering Users in Cell-Free Massive MIMO. - Wafa Haj Hmida; Vahid Meghdadi; Ammar Bouallegue; Jean-Pierre Cances (ICC Workshops, 2020)

Graph-colouring based pilot assignment to mitigate downlink pilot contamination for cell-free massive MIMO systems. - Wafa Haj Hmida; Vahid Meghdadi; Ammar Bouallegue; Jean-Pierre Cances (IET Commun., 2021)