Numerical Solver Based Issues :The model becomes unbounded with higher 1-norm of signal

Sorry for late response. My email notification were Off I guess. I used MOSEK 7 with CVX_Low_Precision. It gave me fair results. Although for higher tolerance values as in High/Best and sometimes Default precision of CVX, the problem seem to breakdown as infeasible/unbounded.

yes sqrt(Ax) means sqrt of each element of Ax. Similarly for y.

@Erling @Mark_L_Stone

Thank you