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simsumratefig4.m
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Gamma_barldb= [8:2:24];
Gamma_barldb1=Gamma_barldb/10;
Gamma_barl=10.^Gamma_barldb1;
N=20;
L=5;
Npt=100000
snr=zeros(Npt,length(Gamma_barl));
snr1=zeros(1,length(Gamma_barl));
for k=1:Npt
for i=1:L
alpha= raylrnd(1/sqrt(2),1,N);
beta= raylrnd(1/sqrt(2),1,N);
Al_Square(i)= dot(alpha,beta)^2;
Gamma_l(i,:)=Al_Square(i)*Gamma_barl;
end
i=1;
for j=1:length(Gamma_barl)
snr(k,i)= max(Gamma_l(:,j));
i=i+1;
end
end
avg_snr=mean(snr);
logsnr20=log2(1+avg_snr)
Gamma_barldb= [8:2:24];
Gamma_barldb1=Gamma_barldb/10;
Gamma_barl=10.^Gamma_barldb1;
N=50;
L=5;
Npt=100000
snr=zeros(Npt,length(Gamma_barl));
snr1=zeros(1,length(Gamma_barl));
for k=1:Npt
for i=1:L
alpha= raylrnd(1/sqrt(2),1,N);
beta= raylrnd(1/sqrt(2),1,N);
Al_Square(i)= dot(alpha,beta)^2;
Gamma_l(i,:)=Al_Square(i)*Gamma_barl;
end
i=1;
for j=1:length(Gamma_barl)
snr(k,i)= max(Gamma_l(:,j));
i=i+1;
end
end
avg_snr=mean(snr);
logsnr50=log2(1+avg_snr)
Gamma_barldb= [8:2:24];
Gamma_barldb1=Gamma_barldb/10;
Gamma_barl=10.^Gamma_barldb1;
N=100;
L=5;
Npt=100000
snr=zeros(Npt,length(Gamma_barl));
snr1=zeros(1,length(Gamma_barl));
for k=1:Npt
for i=1:L
alpha= raylrnd(1/sqrt(2),1,N);
beta= raylrnd(1/sqrt(2),1,N);
Al_Square(i)= dot(alpha,beta)^2;
Gamma_l(i,:)=Al_Square(i)*Gamma_barl;
end
i=1;
for j=1:length(Gamma_barl)
snr(k,i)= max(Gamma_l(:,j));
i=i+1;
end
end
avg_snr=mean(snr);
logsnr100=log2(1+avg_snr)
plot(Gamma_barldb,logsnr20,'k-*','MarkerFaceColor','auto');grid on;hold on;
xlabel("Gamma bar (dB)")
ylabel("Average Sum Rate")
plot(Gamma_barldb,logsnr50,'g-*','MarkerFaceColor','auto');grid on;hold on;
plot(Gamma_barldb,logsnr100,'r-*','MarkerFaceColor','auto');grid on;hold on;
legend("N=20","N=50","N=100")
title("Average capacity for different values of N, L = 5")