Marius Enachescu, Department of Electronic Devices, Circuits and Architectures, Faculty of Electronics, Telecommunications and Information Technology, Politehnica University of Bucharest, Bucharest, Romania Mihai Lefter, Computer Engineering Laboratory, Faculty of EE, Mathematics and CS, Delft University of Technology, Delft, The Netherlands George Razvan Voicu, Computer Engineering Laboratory, Faculty of EE, Mathematics and CS, Delft University of Technology, Delft, The Netherlands Sorin Dan Cotofana, Computer Engineering Laboratory, Faculty of EE, Mathematics and CS, Delft University of Technology, Delft, The Netherlands