... a=ifft(x);%ffty=[a(NFFT-G+1:NFFT),a];%chen khoang bao veendCode hàm “OFDM_Demodulator”function [y] = OFDM_Demodulator(data,chnr,NFFT,G)%Chen khoang bao vex_remove_gaurd_interval=[data(G+1:NFFT+G)];x=fft(x_remove_gaurd_interval);y=x(1:chnr);endCode ... chính:%=============================%Chuong trinh chinh%============================clear all;NFFT=64; %Chieu dai NFFTG=9; %Khoang bao veM_ary=16; %Dang dieu che QAMt_a=50*10^(-9);%Thoi gian lay mauchannel_profile=[1.0000,0.8487,0.7663,0.7880,0.6658,0.5644,0.5174,0.0543,0.0465];rho=channel_profile;h=sqrt(rho);N_P=length(rho);H=fft([h,zeros(1,NFFT-N_P)]);NofOFDMSymbol=100;...