Fig. 16
From: Experimental evaluation of interference alignment for broadband WLAN systems

Comparison of the CDF of the received constellation EVM for both pre-FFT and post-FFT decoding (M=30, L=30, 16-QAM). IA precoding is applied at the transmitter in the frequency domain on a per-subcarrier basis. M=30 training symbols and a decoder length of L=30 samples are used