1. IBM T. J. Watson Research Center, Yorktown Heights, NY, USA
2. Infineon Technologies Austria AG, Graz, Austria
3. James Watt School of Engineering, University of Glasgow, Glasgow, U.K.
4. Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ, USA
5. Department of Engineering, University of Perugia, Perugia, Italy
6. Departamento de Eletrónica, Telecomunicações e Informática, Universidade de Aveiro, Aveiro, Portugal
7. DEI “Guglielmo Marconi”, University of Bologna, Bologna, Italy
8. Department of Electrical and Computer Engineering, University of Illinois Chicago, Chicago, IL, USA
9. Institute of Microwave and Photonic Engineering, Graz University of Technology, Graz, Austria