Anastasios Kourtis was born in Athens, Greece in 1956. He received his B.S. degree in Physics in 1978 and his Ph.D. degree in Telecommunications in 1984, both from the University of Athens. Since 1986, he is a researcher in the Institute of Informatics and Telecommunications of the National Centre for Scientific Research “Demokritos,” currently ranking as Senior Researcher. His current research activities include digital modulation techniques, spread spectrum systems, broadband wireless networks, digital terrestrial interactive television, satellite communications and perceived quality of video services. He has published extensively in the fields above, in international scientific journals, edited books and conference proceedings. Dr. Kourtis has a leading participation in many EU funded research projects from the ESPRIT (FCPN, OFSES), ACTS (CRABS, WATT), and IST programs (WIN, MAMBO, SOQUET, CREDO, REPOSIT) to the recent IST/FP6 (ENTHRONE, ATHENA) and he is also the Project Manager of the FP6/ATHENA project.