1. Department of Information Technology (INTEC), Ghent University, St. Pietersnieuwstraat 41, 9000 Ghent, Belgium
2. Faculty of Applied Engineering Sciences (INWE), University College Ghent, Valentin Vaerwyckweg 1, 9000 Gent, Belgium
3. Department of Telecommunications and Information Processing (TELIN), Ghent University, St. Pietersnieuwstraat 41, 9000 Ghent, Belgium