The frequency spectrum of WLAN. Here we can see the visualization the channel response of 802.11ac before and after channel modeling. Here the trace in yellow is 20 MHz 802.11ac signal with respect to the Orthogonal Frequency-Division multiplexing (OFDM) multi carrier channel with Dc node and we can see that the transmitter signal seems to be flat but the received signal (the trace in blue) that is after channel modelling exhibits sequential activity that is due to the multipath TGac) Very high throughput task group) fading channel applied to it.
