Which three elements determine Air Time efficiency? (Choose three)

A. evert-driven RRM
B. data rate (modulation density) or QAM
C. channel bandwidth
D. number of spatial streams and spatial reuse
E. RF group leader
F. dynamic channel assignment

Which three elements determine Air Time efficiency? (Choose three)

A. evert-driven RRM
B. data rate (modulation density) or QAM
C. channel bandwidth
D. number of spatial streams and spatial reuse
E. RF group leader
F. dynamic channel assignment

Correct Answer: BCD

Four things determine Air Time Efficiency

1. Data rate (Modulation density) or QAM -(how many Bit’s per Radio Symbol) 64 QAM is more robust but 1024 QAM is a lot faster
2. Number of spatial streams and spatial reuse (introduction of OFDMA and Resource Units) and UL/DL MU-MIMO
3. Channel bandwidth – How Many frequencies can we modulate at one time
4. Protocol overhead – Preamble/Ack/BA, Guard Interval “GI” etc