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    %% Build HT PPDU
% This example shows how to build HT PPDUs by using the waveform
% generator function or by building each field individually.
%% Waveform Generator
% Create an HT configuration object.

ht = wlanHTConfig;
%%
% Generate the HT PPDU. The length of the input data sequence in bits must
% be 8 times the length of the PSDU, which is expressed in bytes. Turn
% windowing off.
x = randi([0 1],ht.PSDULength*8,1);
y = wlanWaveformGenerator(x,ht,'WindowTransitionTime',0);
%%
% Plot the magnitude of the waveform.
t = ((1:length(y))'-1)/20e6;
plot(t,abs(y))
xlabel('Time (s)')
ylabel('Magnitude (V)')
%% Individual PPDU Fields
% Create L-STF, L-LTF, L-SIG, HT-SIG, HT-STF, and HT-LTF preamble fields.
lstf = wlanLSTF(ht);
lltf = wlanLLTF(ht);
lsig = wlanLSIG(ht);
htsig = wlanHTSIG(ht);
htstf = wlanHTSTF(ht);
htltf = wlanHTLTF(ht);
%%
% Generate the HT-Data field using input data field |x|, which is the same
% input signal that was used with the waveform generator.
htData = wlanHTData(x,ht);
%%
% Concatenate the individual fields to create a single PPDU.

z = [lstf; lltf; lsig; htsig; htstf; htltf; htData];
%%
% Verify that the PPDUs created by the two methods are identical.
isequal(y,z)