1. Unit of Industrial Automation Industrial Systems Institute 26504 Rion Patras Greece
2. Unit of Digital Communications Industrial Systems Institute 26504 Rion Patras Greece
3. GE Global Research General Electric 12309 New York USA
4. Department of Systems Engineering University of Alicante 03690 Alicante Spain
5. IRIMAS Université d’ Haute Alsace 68093 Mulhouse France