1. Institute for Systems and Computer Engineering, Technology and Science (INESC TEC)PortoPortugal
2. Department of Electrical, Electronic, and Information EngineeringUniversity of BolognaItaly
3. School of Technology and InnovationsUniversity of Vaasa65200VaasaFinland
4. University of SalernoFiscianoSAItaly
5. Faculty of Engineering of the University of Porto and INESC TECPortoPortugal