This paper addresses the problem of dynamic output feedback control design for networked and sampled-data dynamical systems, in the so-called local sensor - remote actuator setting. As a first approach, a sub-optimal solution to the periodic sampled-data control problem is developed and it is shown that this solution presents a sort of separation property. Based on this result, a self-triggered controller is designed in order to relax the periodical sampling constraint and to improve closed-loop performance. Two academical examples validate the developed theory as well as its potentialities for practical applications.