Please show us your proof that this is a convex optimization problem.
Use log_sum_exp(). Check
Thank you. But do you know how to deal with V_n, Because V_n is also included by log
Define a new variable A, then add a constraint A==log(V_n), so V_n=exp(log(V_n))=exp(A).
To clarify, A=log(V_n) is a MATLAB assignment, and would not be a CVX equality constraint A==log(V_n), because V_n is a constant.
V_n is just a constant, have no relationship with n, I wrote has some problems.