Postdoc Fellow, Research Engineer, Freelancer

Hi, I'm Sotiris!
A computer networks research engineer with over sever years of experience in R&D projects
Tell Me More


I hold a 5-year diploma in Electrical and Computer Engineering (2009), an MSc in Computer Networks and Security (2011), and a PhD in Computer Networks (2015); all from Democritus University of Thrace, Xanthi, Greece. The title of my PhD thesis is "Towards a Future Internet Architecture: Protocols and Support Mechanisms" (more details here).

Over the past seven years, I have participated in eight multi-partner R&D projects, funded by the European Commission, the European Space Agency and the Greek government, having been frequently assigned the role of Task and Technical Leader. During the summer of 2011, I also served as a visiting researcher at NASA Jet Propulsion Laboratory, investigating issues related to Delay-/Disruption-Tolerant Networking (DTN).

Currently, I am an associate member of InterSys Lab and I hold a postdoc research fellow position at Athena RIC, where I am involved in the "Universal, Mobile-Centric and Opportunistic Communication Architecture (UMOBILE) research project.

My expertise lies mainly in the area of Delay-/Disruption-Tolerant Networks (DTNs). In particular, I have worked extensively with the Interplanetary Overlay Network (ION) software distribution by Jet Propulsion Laboratory and IBR-DTN software distribution by Braunschweig University. I am also an active contributor to the open-source ION software community by developing and maintaining the Bundle Streaming Service Framework.

Apart from those contributions, I have also published a substantial amount of work in the areas of network queue management and distributed data dissemination architectures. My research interests also include network modelling, network data engineering, wireless sensor networks, social networking, network security, ubiquitous networking, Internet of Things, future Internet technologies and network data science.


  • Technical Reports
  • S.-A. Lenas, Pavlos S. Efraimidis and Vasilis Katos, "Database Forensics", Technical Report LPDP-2009-2. (in greek)


Current research projects I am involved in:


SENsing SKIN for Monitoring-Based Maintenance of the Transport Infrastructure


Universal, Mobile-Centric and Opportunistic Communication Architecture

Past research projects I was involved in:


A Low Power, Intelligent, sensor Network architecture for Environmental management

Space-data Distribution Study

Application of a BitTorrent-like Data Distribution Model to Mission Operations


Space-Data Routers - Share space-data in a natural, flexible, secure and automated manner


Space Internetworking Center - Establish a quality framework for innovative research activities

Extending Internet into Space

Phase 3 - ESA/ESOC DTN/IP Testbed Deployment and Optimization

Extending Internet into Space

Phase 2 - DTN/IP Testbed Implementation and Evaluation

Geeky Stuff

Arietta G25 as a Wireless Sensor Network node

How to transform Acme systems' Arietta G25 board to a fully autonomous WSN node

Microchip MRF24J40 Linux Kernel Driver Improvements

MRF24J40 Linux Driver fixes


  • Reviewer Activity
  • WWIC 2016 (TPC Member)
  • Ad Hoc Networks - Elsevier (Outstanding Reviewer)
  • Computer Networks - Elsevier
  • Environmental Modelling & Software - Elsevier
  • Mobihoc 2013
  • IEEE International Conference on Communications (ICC 15')
  • Networking 2011
  • WWIC 2010
  • International Journal Of Computer Mathematics
  • IEICE Transactions on Information and Systems
  • Wireless Communications and Mobile Computing
  • Teaching Assistant
  • Computer Networks II (2011 -2015)
  • Introduction to Computer Science (2014)
  • Research Interests
  • Delay-/Disruption-Tolerant Networking
  • Network Queue Management
  • Network Applications
  • Wireless Sensor Networks
  • Future Internet Technologies
  • Social Networking
  • Network Management
  • Network Security
  • Hobbies
  • Fitness
  • Playing the Guitar
  • Radio Producing
  • Djing
  • Canoe Kayak
  • Basketball
  • Greek Traditional Dancing

Latest News

  • 25/05/2016: At Thessaloniki, attending the 14th International Conference on Wired/Wireless Internet Communications - WWIC 2016.

  • 17/05/2016: Second plenary meeting of the SENSKIN project starts in a few minutes at the premises of TECNIC in Rome, Italy. Here to present DUTH's progress regarding SENSKIN communication module.

  • 14/3/2015: The alpha version of the SENSKIN communication module prototype (SENCOM-A) is ready. Have a look here.

  • 10/11/2015: First plenary meeting of the SENSKIN project starts in a few minutes at the premises of GaBi Institute in Stuttgart, Germany. Here to present DUTH's progress regarding WP1 and WP3 activities.

  • 03/11/2015: I am glad to let you know that today I successfully defended my PhD thesis!

  • 29/09/2015: SENSKIN 1st plenary meeting will be held on November 10th-12th in Stuttgart.

Contact Info


+30 2541 0 79554

Mailing Address

Democritus University of Thrace
Elec & Comp Eng Department
Software Division
Building A’, Ground floor, Office 3
Kimmeria Campus
GR 671 00 Xanthi