He received the Dr. Eng. degree in electronics engineering from the University of Roma "La Sapienza" in October 1980.
In January 1981 he joined the Fondazione Bordoni as researcher in the branch "Networks and Services" and, from July 1987 to October 1991, he has been also leader of the group "TLC network architectures".
In November 1991 he became Associated Professor of Switching Systems at Infocom Department of the University of Roma "La Sapienza". From November 2002 he is Full Professor in the same University.
In the period 1994/2001 he has been Visiting Professor of Telecommunication Networks at the University of Roma "Tor Vergata".
Since 1994 he collaborates at the activities of CoRiTel, a Research Consortium in the field of Telecommunication among the Universities of Roma "La Sapienza" and "Tor Vergata" and Ericcsson Lab Italia. From 1997 to 2002 He has been representative of the University of Roma "La Sapienza" at CNIT, a Consortium joining 32 Italian Universities with the scope of promoting research activity in the area of telecommunication. He is author of more than 100 papers, published on the most important scientific magazines and journals and on the proceedings of the main international conferences in the area of telecommunications. He has been guest editor of the feature topic "Optical Networking Solutions for Next Generation Internet Networks", on IEEE Communications Magazine September 2000. He is member of the Institution of Electrical and Electronic Engineers (IEEE) and of the IEEE Communication Society. He has been session chairman in several international conferences and is also involved in the paper review processes of the most important scientific magazines and journals. He participated, as expert of the Italian Administration, at national and international standardization commissions and working groups in the field of telecommunication networks (CCITT, ETSI, ITU, IETF, ecc.). He coordinated on the behalf of the Fondazione Bordoni and the Italian Administration the activity of many national and international study and research projects in the frame of the programs RACE, ACTS, ITS, COST, ESA, MURST etc. In the last two years (2001-2002) he has been scientific coordinator of the project "NEBULA", supported by the Italian Ministry of University and Research and joining six Italian Universities. He is consulting of several companies in the field of telecommunications, e.g. Ericsson, Alcatel, Telecom, Wind, Etnoteam, H3G, etc.