Internetworked Systems Lab

Nikolaos Bezirgiannidis

Nikolaos Bezirgiannidis was born and raised in Orestiada, in 1983. He received a Diploma in Electrical and Computer Engineering  from Aristotle University of Thessaloniki, Greece in 2006. Nikolaos also received his M.Sc. and his PhD in the Department of Electrical and Computer Engineering, Democritus University of Thrace, Greece, in 2010, and 2015 respectively. He has worked on several projects funded by the European Space Agency and the European Commission and published various research papers. Nikolaos has also served as a visiting researcher in NASA, JPL, and in ESA, ESOC, where he investigated issues related to DTN and Space Internetworking. 


PhD Thesis 

Accurate Estimation of End-to-End Delivery Delay in Space Internets: Protocol Design and Implementation, July 2015, Advisor Prof. Vassilis Tsaoussidis.


 Research Interests

  • Delay / Disruption Tolerant Networking
  • Information-Centric Networking
  • Routing Protocols
  • Transport Protocols in Space Environment

Research Projects

  • UMOBILE, H2020 Project Funded by European Commission
  • Extending Internet into Space - Phase 2 - ESA/ESOC DTN/IP Testbed Implementation and Evaluation June 2009 - December 2009
  • Extending Internet Into Space - Phase 3 - DTN/IP Testbed Implementation and Optimization, Funded by the European Space Agency (ESA),  2010-2011
  • SPICE - Space Internetworking Center, FP-7 Project co-funded by European Commission
  • Space Data Routers , FP-7 Project co-funded by European Commission 


  • N. Bezirgiannidis, S. Burleigh, and V. Tsaoussidis, "Delivery Time Estimation for Space Bundles", IEEE Transactions on Aerospace and Electronic Systems, vol.49, no.3, pp.1897,1910, July 2013, doi: 10.1109/TAES.2013.6558026



  • I. Komnios, I. Alexiadis, N. Bezirgiannidis, S. Diamantopoulos, S.-A. Lenas, G. Papastergiou  and V. Tsaoussidis, "SPICE Testbed: A DTN Testbed for Satellite and Space Communications", 9th International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TRIDENTCOM 2014), Guangzhou, China, May 5-7, 2014.


Reviewer Activities

  • Elsevier Ad Hoc Networks
  • IEEE Sensors Journal
  • IEEE Transactions on Aerospace and Electronic Systems
  • IEEE Transactions on Mobile Computing
  • IEEE Wireless Communications Magazine
  • Elsevier Computer Networks
  • Acta Astronautica
  • ACM MobiHoc 2013
  • GLOBECOM 2013, ISCC 2013, GLOBECOM 2011, WWIC 2011, Networking 2011, WWIC 2010, E-DTN 2009

Contact info
Democritus University of Thrace

Department of Electrical and Computer Engineering
Building A, ECE
Kimmeria Campus

Xanthi - 67100
Telephone: +302541079554 
E-mail: nbezirgi (at)