How I can fix this problem

This is my code

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

clear all

clc

for N=8:2:20

tn = 7;

M = 7; L = 5;

attSR = -40; attPU = -60; % dB

Nt = N;

h = zeros(Nt,M); % Nt antenna to M SRs

g = zeros(Nt,L); % Nt antenna to L PUs

for ii=1:M % to each SRs

h(:,ii) = (1/sqrt(1/attSR))* sqrt(1/2)*(randn(Nt,1)+1i*randn(Nt,1)) ;

H(:,:,ii) = h(:,ii)*h(:,ii)'; %before (7a) to 1 SR

end

for ii=1:L

g(:,ii) = (1/sqrt(1/attPU))* sqrt(1/2)*(randn(Nt,1)+1i*randn(Nt,1)) ;

G(:,:,ii) = g(:,ii)*g(:,ii)' ; %before (7a) to 1 PU

end

end

~~~~~~~

Answer 1

[VBBV]

clear all
clear all
clc
i = 1;LL = 8:2:20;
for N=8:2:20
tn = 7;
M = 7; L = 5;
attSR = -40; attPU = -60; % dB
Nt = N;
h = zeros(Nt,M); % Nt antenna to M SRs
g = zeros(Nt,L); % Nt antenna to L PUs
H = zeros(Nt,Nt,length(LL));
G = zeros(Nt,Nt,length(LL));
for ii=1:M % to each SRs
h(:,ii) = (1/sqrt(1/attSR))* sqrt(1/2)*(randn(Nt,1)+1i*randn(Nt,1)) ; 
%H(:,:,i) = h(:,ii)*h(:,ii)'; %before (7a) to 1 SR
end
H = h*h.';HH(1:Nt,1:Nt,i) = H;
for ii=1:L
g(:,ii) = (1/sqrt(1/attPU))* sqrt(1/2)*(randn(Nt,1)+1i*randn(Nt,1)) ; 
%G(:,:,i) = g(:,ii)*g(:,ii)' ; %before (7a) to 1 PU
end;
G = g*g.';GG(1:Nt,1:Nt,i) = G;
i = i+1;
end

You can try this approach

[VBBV]

Check for HH and GG matrices which have the final results

[Khiem Nguyen]

When i read your code. I really know my mistakes. I truly thanks you very much. Have a good day!!