cyclic prefix matlab code

[army123]

x=[1 2 3 4]
h=[1 2]

can anyone write code in matlab for x+CP(cyclic prefix) linearly convolved with h

 

[Romance42932]

x = [1 2 3 4];
h = [1 2];
cp = x(4); % as length(h) = 2
x_with_cp = [x(4) x]; % cp addition
y = conv(x,h);
y_witout_cp = y(2:5);