Yes you can get good signal without pilot signal by using OFDM 12 component.
I am unable to open you fiel i am using v13.0 it may above then. I will try to open this.
You can choose the the parameter for Cw -4 dBm, using LibMZM modulator with -1 bias.
ODFM no of sub carrier 128 , no position array 448, FFt point 1024, 3/4 cyclic prefix 3/4
cut off frequency for LPF of Demodulation (QAM) 6 GHz.