doc.: IEEE 802.11-04/0013r0 Submission January 2004 Ravi Mahadevappa, Stephan ten Brink, Realtek Slide 18 Observations Switching on/off subchannels is a simple way of using channel information at the transmitter Gains up to 3dB in 1x1 case, upto 2.5 dB in 2x3, 3x4 case Gain reduces when number of Rx antennas is increased as diversity increases Performance is better with variable number of subchannels switched off compared to fixed number switched off
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