Fig. 2From: Decoupled signal detection for the uplink of massive MIMO in 5G heterogeneous networks a Sum rate vs number of receive antennas. N = 4, ∣C n ∣=8 users per class, \(N_{t_{k,n}}=1\) antenna per user. b Sum rate vs number of receive antennas. N = 16, ∣C n ∣=1 user per class, \(N_{t_{k,n}}=2\) antennas per userBack to article page