Low complexity scheduling and beamforming for multiuser MIMO systems

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Low complexity scheduling and beamforming for multiuser MIMO systems

20 40 60 80 100 120 140 160 180 200

5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5

Number of users

Sum Rate [bits/s/Hz]

Matched Filter − Full CSIT Matched Filter w/ eig.codebook − Full CSIT Prop. Low Complexity Algorithm − lower bound on SR Prop. Low Complexity Algorithm − effective SR Random Beamforming

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 6

6.5 7 7.5 8 8.5 9 9.5 10 10.5

Angle spread, σ θ /π

Sum Rate [bits/s/Hz]

Matched Filter − Full CSIT Matched Filter w/ eig.codebook − Full CSIT Prop. Low Complexity Algorithm − lower bound on SR Prop. Low Complexity Algorithm − effective SR Random Beamforming

Angle spread, σ _θ /π