How to solve an error in optimization problem with CVX ?

Dear all,

I am trying to solve the following minimization problem with CVX (matlab) and I encountered an error. I am giving the optimization problem with my matlab code and the error I got as well for any body who can help.

Please accept my deepest thanks for your time and valuable help.

My Matlab Code:

B=randn(m,M);

Delta=C.^(1/2); % already hermitian

cvx_begin sdp

variable W(m,m) hermitian

variable Q(M,M) hermitian toeplitz

minimize( trace(W)+ trace(B*Q*B'))

subject to

Q >= 0;

[ eye(m)+B*Q*B' Delta ; Delta' W ] == semidefinite(2*m);

cvx_end

Matlab Error:

Array indices must be positive integers or logical values.

Error in cvx_extract (line 552)

Pd(Pr) = false;

Error in cvx_solve (line 26)

[ At, cones, sgn, Q, P, exps, dualized ] = cvx_extract( shim.config, shim.name );

Error in cvx_finish