Decentralized Limited-Feedback Multiuser MIMO for Temporally Correlated Channels

Figure 7

SINR comparison for four users under perfectly known static channels. “DAO-D-JAC unq” uses unquantized rotor angles for the update (5). “DAO-D-JAC + angle fwd” refers to the DAO technique, where the rotor angles are quantized with 3 bits each and feedback bit errors are compensated with the angle forwarding mechanism of Section 3.1.