1. MetaMind Innovations P.C.,R&D Department,Kozani,Greece
2. Kingston University,Department of Networks and Digital Media,Kingston upon Thames,United Kingdom
3. Aristotle University of Thessaloniki,Physics Department,Thessaloniki,Greece
4. University of Peloponnese,Department of Informatics and Telecommunications,Tripoli,Greece
5. University of Western Macedonia,Department of Electrical and Computer Engineering,Kozani,Greece