Unable to perform assignment because the indices on the left side are not compatible with the size of the right side. Can anyone please help, Thanks in advance.

Question

Dhawal Beohar 2022-6-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1739070-unable-to-perform-assignment-because-the-indices-on-the-left-side-are-not-compatible-with-the-size-o

评论： Dhawal Beohar 2022-6-12

Error in UvsPs (line 39)
muo(i) = (-1./u).*log(((d1.^m)./(a.*n.*PsByN_0.*T.*u+d1.^m).*a)./(1-a));
clc
clear all;
d1=20;
d2=20;
n=10^-11.4;
m=2.7;
a=0.4;
T=1;
PsByN_0dB=[20:.01:40];                                                     
PsByN_0=10.^(PsByN_0dB/10);
UmaxdB = 15;
UmaxN_0=10.^(UmaxdB/10);
Qu=[-2:0.001:0];
QoS_Component_u=10.^(Qu);
for i=1:length(QoS_Component_u)
    u=QoS_Component_u(i);
    muo_sum(i)=0;  %Initialising mu_o equal to zero
    mui_sum(i)=0;  %Initialising mu_i equal to zero
    r1_sum(i)=0;
    r2_sum(i)=0;
   
for j=1:100
    hx1=(1/sqrt(2))*randn(1,1);
    hy1=(1/sqrt(2))*randn(1,1);
    h1=hx1.^2+hy1.^2; 
    hx2=(1/sqrt(2))*randn(1,1);
    hy2=(1/sqrt(2))*randn(1,1);
    h2=hx2.^2+hy2.^2;
    muo(i) = (-1./u).*log(((d1.^m)./(a.*n.*PsByN_0.*T.*u+d1.^m).*a)./(1-a));
    muo_sum(i)=muo_sum(i)+muo(i); %Summation of muo(i) 
    mui(i) = (1./u).*log(((-exp(u.*UmaxN_0).*(exp(-PsByN_0.*u)))./(u.*UmaxN_0+PsByN_0.*u)).*(PsByN_0.*u)-(PsByN_0.*u.*(exp(-PsByN_0.*u))).*(expint(u.*UmaxN_0+PsByN_0.*u))+(exp(-PsByN_0.*u))+((PsByN_0.*u).*(exp(-PsByN_0.*u))).*(expint(PsByN_0.*u))+(exp(u.*UmaxN_0))./((UmaxN_0./PsByN_0)+1));
    mui_sum(i)=mui_sum(i)+mui(i); %Summation of mui(i)
    r1(i) = log(1+(h1*PsByN_0)/(n*d1^m))*((1-a)*(T/2));
    r1_sum(i) = r1_sum(i)+r1(i); 
    r2(i) = log(1+(h2*muo(i))/(n*d2^m))*((1-a)*(T/2));
    r2_sum(i) = r2_sum(i)+r2(i); 
end
muo_avg(i) = muo_sum(i)/100; %Average 
mui_avg(i) = mui_sum(i)/100; %Average 
r1_avg(i) = r1_sum(i)/100;
r2_avg(i) = r2_sum(i)/100;
C(i) = min(r1_avg(i),r2_avg(i));
 
end 
loglog(QoS_Component_u,PsByN_0dB);
hold on;
grid on;