Dr. Dimitris El. Vassis

Telecommunications Engineer


Who is the guy?

Born in Ioannina of Greece in 1978.

Received the Diploma in Electrical and Computing Engineering of National Technical University of Athens in 2001.

Received the MBA in Technoeconomic Systems in the Department of Electrical and Computing Engineers of the National Technical University of Athens in 2004.

Received the PhD degree in "Resource Allocation and Performance Analysis of Broadband Networks based on the IEEE 802.11 standards" from the Department of Information and Communication Systems Engineers of the University of Aegean in 2005.

Worked as a research associate at the Telecommunications Lab of the National Technical University of Athens between 2001 and 2004, designing broadband optical / wireless military networks.

Worked as an associate at the Hellenic Authority for the Information and Communication Security and Privacy (ADAE) during the year of 2004, specifying security regulations /requirements for the telecommunication operators in Greece.

Worked as network administrator and networking solutions consultant in KINTEC Electronic Security Systems LTD from 2004 to 2005.

Between 2006 and 2008 he worked as a research associate at the University of Aegean in the area of radio resource management (RRM) in heterogeneous wireless networks, and as a adjunct lecturer at the Technological Educational Instutute (TEI) of Athens, department of Informatics.

Worked as a supervisor of the IT department of the Cooperative Bank of Epirus in Greece between 2008 and 2009.

Worked as a research associate at the Technological Educational Institute (TEI) of Athens and the TEI of Epirus, where he participated in various national-funded projects.

Since 2009 he is the supervisor of the Waste Water Treatment Plant of the city of Preveza in Greece, and the supervisor of the Sites, Quality Control and Enviromental Department of the Municipal Cooperation for Water and Wastewater of Preveza (DEYAP).

Since 2009 he is also an adjunct assistant professor at the Department of Informatics Engineer of the Technological Educational Institute of Epirus, where he teached the lessons of Broadband Networks, Mobile Networks, and Wireless Links. Today he teaches the lessons of Telecommunication Networks II and Satellite Communications.

Since 2002 he is a member of the technical chamber of Greece.


His current professional activities include Development of web applications and mobile applications, Development of SCADA systems, Design and setup of wired, wireless and mobile networks, Computer and network administration, Design of industrial automation systems for process optimization and control, Design of domestic and industrial electrical installations, Implementation of environmental impact assessment studies and feasibility studies for small and medium scale industries.

His current research interests are in the fields of quality of service, resource allocation and performance analysis of wireless access networks.


Hirsch Index: 8 –  Citations: 251 –  Access date: 11/10/2014



  1. P. Belsis, D. Vassis, C. Skourlas, “Identifying and Utilizing Secure Paths in Ad Hoc Assistive Medical Environments”, Security and Communication Networks (Wiley), vol. 4, no. 11, Nov. 2011, pp. 1231-1242
  2. D.Vassis et. al. “Providing Advanced Remote Medical Treatment Services through Pervasive Environments”, Personal and Ubiquitous Computing (Springer), vol. 14, no.6, Sep. 2010, 563-573
  3. D. Vassis, G. Kormentzas, Performance Analysis of IEEE 802.11 Ad Hoc Networks in the Presence of Exposed Terminals,  Ad Hoc Networks (Elsevier), vol. 6, no. 3, May 2008, pp. 474-482 . []
  4. D. Vassis, G. Kormentzas, "Performance Analysis of IEEE 802.11 Ad Hoc Networks in the Presence of Hidden Terminals", Computer Networks (Elsevier), vol.51, no.9, 2007, pp.2345-2352. []
  5. D. Vassis, G. Kormentzas, A. Rouskas, I. Maglogiannis, "The IEEE 802.11g Standard for High Data Rate WLANs", IEEE Network, vol. 19, no. 2, May 2005, pp. 21-26. []
  6. D. Vassis, G. Kormentzas, "Delay Performance Analysis and Evaluation of IEEE 802.11e EDCA Under Finite Load Conditions", Wireless Personal Communications (Springler), vol. 34, no. 1-2, Jul. 2005 pp. 29-43. []
  7. D. Vassis, G. Kormentzas, C. Skianis, "Performance Evaluation of Single and Multi-Channel Actor to Actor Communication for Wireless Sensor Actor Networks", Ad Hoc Networks (Elsevier), vol. 4, no. 6, July 2006, pp.487-498.[]
  8. G. Kormentzas, I. Maglogiannis, D. Vassis, D. Vergados, A. Rouskas, "A modelling and simulation framework for compound medical applications in regional healthcare networks", International Journal of Electronic Healthcare, vol. 1, no. 4, pp. 427-441, 2005 []



  1. D. Vassis, A. Kampouraki, P. Belsis, C. Skourlas, "Admission Control of Video Sessions over Ad Hoc Networks Using Neural Classifiers", Procs. IEEE MILCOM '14, Baltimore, USA, Oct. 2014, pp. 1015-1020
  2. D. Vassis, et al. "Secure mobile Assessment of Deaf and Hard-of-Hearing and Dyslexic Students in Higher Education." Procs. 17th Panhellenic Conference on Informatics. ACM, Thessaloniki, Greece, Sep. 2013
  3. D. Vassis, et al. "An Ad Hoc-Based ERP for Medical Treatment Provision in Crisis Conditions", Procs. 16th Panhellenic Conference on Informatics, IEEE, Pireus, Greece, Oct. 2012
  4. P. Belsis, D. Vassis. "Challenges and Solutions in Electronic Patient Records Management Using Wireless Sensor Networks." Procs. 16th Panhellenic Conference on Informatics, IEEE, Pireus, Greece, Oct. 2012
  5. P. Belsis, et al. "Secure Wireless Infrastructures and Mobile Learning for Deaf and Hard-of-Hearing Students." Procs. 16th Panhellenic Conference on Informatics. IEEE, Pireus, Greece, Oct. 2012
  6. D. Vassis, P. Belsis, C. Skourlas. "Secure Management of Medical Data in Wireless Environments." Procs. 16th Panhellenic Conference on Informatics. IEEE, Pireus, Greece, Oct. 2012
  7. A. Kampouraki, D. Vassis, P. Belsis, C. Skourlas, “e-Doctor: A Web-based Support Vector Machine for Automatic Medical Diagnosis”, procs. ICININFO 2012, Budapest, Sep. 2012
  8. D. Vassis et. al. “A Resource Reservation and Traffic Categorization Agent for QoS in Medical Ad Hoc Networks”, procs. ICININFO 2012, Budapest, Sep. 2012

17.    C. Skourlas, et al. "A Wireless Distributed Framework for Supporting Assistive Learning Environments", Procs. PETRA 2009, Corfu, Greece, Jun. 2009

  1. D. Vassis, et al. "End to End Secure Communication in Ad-Hoc Assistive Medical Environments Using Secure Paths." Procs. PETRA 2009, Corfu, Greece, Jun.  2009
  2. P.Belsis, D.Vassis, S.Gritzalis, C.Skourlas, “ W-EHR: A Wireless Distributed Framework for Secure Dissemination of Electronic Healthcare Records”, Procs. IEEE IWSSIP, Chalkida, Greece, Jun. 2009
  3. C.Skourlas et. al., “A wireless Distributed Framework for Supporting Assistive Learning Environments”, Procs. ACM AHETA 2009,  Corfu, Greece, Jun. 2009
  4. D.Vassis, et. al. "A Pervasive Architectural Framework for Providing Remote Medical Treatment", Procs. Petra 2008, AthensGreece, July 2008.
  5. L.Sarakis, D.Vassis, G.Kormentzas, “Design and Implementation of SOAP-Message-based Events for Interconnecting RRM Simulators”, Procs. of ICTSummit 2008, Stockholm, Sweeden, Jun. 2008
  6. P.Belsis et. al., “Managing Electronic Heahthcare Records in Pervasive Environments”, Procs. MIE 2008, GoteborgSweden, May 2008.
  7. N.Ruivo et. al., “Cross-System Handover Execution in the context of an Event-based Distributed Virtual Testbed”, Procs. of ISTSummit 2007, Budapest, Hungary, Jul. 2007.
  8. D. Vassis, G. Kormentzas, "Throughput Analysis of IEEE 802.11 Ad Hoc Networks Under the Hidden Terminal Problem", Procs. IEEE ICCNC 2005, Las Vegas, USA, Jan. 2006. [].
  9. D.Vassis, G.Kormentzas, "An Architectural Framework for Providing WLAN Roaming", Procs. 1st International Working Conference on Performance Modelling and Evaluation of Heterogeneous Networks (HET-NETs '03), Jul., 2003, Ilkley, UK []
  10. D.Vassis, G.Kormentzas, "Performance Analysis of Exposed Terminal Effect in IEEE 802.11 Ad Hoc Networks Under Finite Load Conditions", Procs. Networking 2006, Coimbra, Portugal, May 2006. []
  11. D.Vassis, G.Kormentzas, "Delay Analysis of IEEE 802.11 Ad Hoc Networks in Finite Load Conditions Under the Hidden Terminal Problem", Procs. 12th European Wireless Conference, Athens, Greece, Apr. 2006. []
  12. D. Vassis, K. Pangiotopoulos, A. Tsakrikadakis, G. Kormentzas, F.Lazarakis, D. Vergados, "Building Robust Military Networks Using Advanced Software Tools", Proc. WSEAS, Skiathos, Sep. 2002. []
  13. F.Lazarakis, G. Kormentzas, D. Vergados, K. Panagiotopoulos, D. Vassis, A. Tsakrikadakis, "A GIS Based Methodology for Designing Wireless Links", Procs. WSEAS, Skiathos, Sep. 2002. []


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