How can I compute PAPR with bpsk ,qpsk, and 16QAM. The number of sc= 4, 8, 16,32, and 64 in general

I have tried this program for only bpsk: clear all; close all; N=10^3; %trails PAPR_0=0:12; %db_value %x axis cut=0; pr=zeros(1,length(PAPR_0)); %y axis

for i = 1 :length(pr) %for loop for PAPR cut = 0.0; for k=1:N

        gama=10^(PAPR_0(i)/10);
        x=rand(1,N)>0.5;
        y=2*x-1;
        c=ifft(y,64)*sqrt(64);
        p_avg=mean(abs(c).^2);  %conj(c).*c
        p_max=max(abs(c).^2);
        PAPR=p_max/p_avg; 
        if (PAPR>gama);

            cut=cut+1;
        end

    end
    pr(i)=cut/N;
end
semilogy(PAPR_0,pr); grid on,

Answer 1

[Amit Kansal]

Please refer to the example that allows you to change the modulation and number of subcarrers for OFDM, and calculates the PAPR for the selected scheme.

https://www.mathworks.com/help/releases/R2025a/comm/ug/f-ofdm-vs-ofdm-modulation.html

Hope this helps.