signal_field_siso_20.m

A SISO 20M OFDM system based on IEEE802.11n standard, using Matlab.

%Signal Field generator: Programmed by Yoshiki Kami
function signal_fie = signal_field_siso_20();

din = 2*randint(1,112) - 1;
temp = din(1:2:end) + j*din(2:2:end);

% QPSK normalization
tetemp = 0.707*temp;

% 暲傋傞
a = [0, tetemp(1:28), zeros(1,7), tetemp(29:end)];

%ifft偟偰帪宯楍偵両
b = ifft(a,64);

signal_fie = [b(1,33:64) b b];