I'm currently trying to reproduce a convex optimization problem from a certain article, with the following code.However, I encounter this error when running the code at the third-to-last and fourth-to-last lines:Invalid constraint: {positive convex}=={1}

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cvx_begin sdp quiet
variable F_BB(6,6) complex
variable t
b=vec(F_BB);
E=kron(eye(Ns),F_RF);
f=vec(F_opt);
y=[b;t];
C=[E’E -E’f;-f’E f’f];
A1=[eye(N_tRFNs) zeros(N_tRFNs,1);zeros(1,N_tRFNs) 0];
A2=[zeros(N_tRFNs) zeros(N_tRFNs,1);zeros(1,N_tRFNs) 1];
minimize(quad_form(y,C));
subject to
quad_form(y,A2)==1;
quad_form(y,A1)==N_tRF*Ns/Nt;
norm(y)>=0;
cvx_end

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convex
convex532×346 29.2 KB

The original convex optimization problem is shown in the figure.

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Previously, I misunderstood the meaning of the problem, but now it’s clear and there’s no issue.