1. “‘Ercole De Castro” Research Centre on Electronic Systems for Information and Communication Technologies and the Department of Electrical Electronic and Information Engineering Engineering “Guglielmo Marconi,”, University of Bologna, Bologna, Italy
2. Department of Electronics and Telecommunications, Politecnico of Torino, Turin, Italy
3. CEMSE, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
4. STMicroelectronics, Agrate Brianza, Italy