1. Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
2. Department of Electrical and Computer Engineering, University of Coimbra, Coimbra, Portugal
3. University of the Bundeswehr Munich, Neubiberg, Germany
4. Graduate School of Informatics, Kyoto University, Kyoto, Japan
5. Concordia University, Montreal, Canada
6. Central Research and Technology Airbus, Munich, Germany