1. R&D,Telespazio,UK
2. Northumbria University,Optical Communications Research Group, Faculty of Engineering and Environment,Newcastle upon Tyne,UK
3. Czech Technical University in Prague,Faculty of Electrical Engineering,Department of Electromagnetic Field,Czech Republic
4. Aix-Marseille University, CNRS, Centrale Marseille, Institut Fresnel Marseille,France
5. Harokopio University of Athens,Department of Informatics and Telematics