Fig. 1From: Ubiquitous cell-free Massive MIMO communicationsExample of network deployments. Top left: a conventional cellular network where each UE is connected to only one AP. Top right: a conventional network-centric implementation of CoMP-JT, where the APs in a cluster cooperate to serve the UEs residing in their joint coverage area. Bottom left: a user-centric implementation of CoMP-JT, where each UE communicates with its closest APs. Bottom right: a “cell-free” Massive MIMO network is a way to implement a user-centric networkBack to article page