Adaptive Opportunistic Beamforming in Ricean Fading Channels - Adaptive Signal Processing in Wireless Communications - page 183

3.5

3

2.5

2

1.5

1

0 100 200 300 400 500 600

Number of users

FIgure 7.4 Throughput in bps/Hz for user 1 multiplied by number of users scheduled for slow
Rayleigh fading at average SNR = 0 dB with the proportional fair scheduling algorithm. Perfor-
mance of coherent transmit beamforming for user 1 and scheduled at all times is plotted as a
dotted line. There are ten antennas in this experiment. (Reproduced from Viswanath et al., 2002.
© 2002, IEEE. With permission.)

1.5

Coherent BF

1.4

Opp. BF

1.3

1.2

1.1

1

0.9

0.8

0 5 10 15 20 25 30 35

Number of users

FIgure 7.5 Total throughput in bps/Hz averaged over slow Rayleigh fading at average
SNR = 0 dB with the proportional fair scheduling algorithm. Performance of coherent trans-
mit beamforming is also plotted. (Reproduced from Viswanath et al., 2002. © 2002, IEEE. With
permission.)