I was born in Athens, Greece, but I grew up and went to school in Trikala, a city in the region of Thessaly in central Greece. I studied at the National Technical University of Athens and graduated with a Diploma (MEng equivalent) in Electrical and Mechanical Engineering. After my military service (which I could have avoided it had I known that I would be staying for such a long time abroad ;-) I obtained a scholarship from the Greek Scholarship Foundation for studies abroad. In 1985-86 I did the MSc in Computer Science at University College London (UCL).

I subsequently worked as Research Fellow in European and UK research projects. Between 1989 and 1992 I contributed in a major fashion to the research/design and I was the major developer behind the , OSIMIS platform, which was subsequently used in a number of research projects and served as the basis for commercial products. From October 1992 I was a Senior Research Fellow, being involved in teaching and student supervision activities. I led UCL's participation in European projects, initiated a number of industrial collaborations with company research laboratories and was the driving force behind the UCL Communications Management Research Group. In October 1995 I became a Senior Research Fellow and Lecturer, a mixed research and academic post equivalent to Senior Lecturer. In January 1998 I joined the Department of Electronic Engineering, University of Surrey as professor, holding the Chair of Communication and Information Systems. I stayed at Surrey for exactly 10 years, leading the activities of the Networks Research Group in the Centre for Communication Systems Research. Since January 2008 I am back at UCL but this time in the Department of Electronic and Electrical Engineering, holding the Chair of Communication Networks.

I am part of the Networks and Services Research Lab at the Communications and Information Systems Group. I manage its participation in a number of research projects, supervise PhD students and MSc/undergraduate student projects and teach at both undergraduate and MSc levels.

Apart from communications engineering, I am interested in cultural, sports and other activities. These include cinema, literature, music - I have a large rock/jazz/classical/ethnic record collection, off-road motorbiking, trekking and cycling. I tend to spend my holidays in Elati, the Aegean islands (mostly Cyclades) and the area of Ardeche in south France.