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AIT Community / Faculty / Resident / Spyridon Vassilaras

svas
CONTACT INFORMATION
Spyridon Vassilaras / Resident Professor
Athens Information Technology
PO Box 68, 19.5 km, Markopoulo Avenue
Peania 19002, Athens, Greece
Tel: (+) 30-210-668-2757
Fax: (+) 30-210-668-2703
Email:               svas                           @
PERSONAL DATA
Date and place of birth: Athens 30/09/71
Citizenship: Greek
Languages: Greek, English, French
 
 
 
  ait  .   gr

 

SUMMARY

Dr. Spyridon (Spyros) Vassilaras, is with AIT since November 2003, first as a postdoctoral researcher and since September 2006 as an Assistant Professor. He obtained his Ph.D. in Computer Engineering from Boston University in 2001 (Ph.D. adviser Prof. Yannis Paschalidis). Prof. Vassilaras is currently teaching two MSITT cources: Data Networks (co-instructed with Prof. D. Klonidis) and Wireless Networks and supervising a number of Theses. While at AIT, he has been conducting research in various areas of telecommunications networks and participating in a number of collaborative research projects funded by the European Commision. His research results have been published in numerous scientific journal and conference papers as well as book chapters. Dr. Vassilaras is an avid chess player (current national ELO 1515) and wishes he had more time to devote to chess. You can view his Academic Genealogy Tree here.   
 

EDUCATION

  • Ph.D. in Computer Engineering, Boston University, 2001.
  • M.S. in Computer Engineering, Boston University, 1997.
  • Diploma degree in Electrical and Computer Engineering, National Technical University of Athens, Greece, 1995
     

TEACHING EXPERIENCE  

Currently teaching:

  • Data Networks, AIT, MSITT, Fall Semester
  • Wireless Networks, AIT, MSITT, Spring Semester

Lectured in courses:

  • Introduction to Cryptography and Computer Security, AIT, MSIN/MSITT
  • Introduction to Computer Security, AIT, MSITT
  • Logistics and Supply Chain Management, AIT, MBIT
  • Linear Algebra, AIT, BSc

Teaching assistant for:

  • Electric Circuit Theory, Boston University
  • Software Systems Design, Boston University


PROFESSIONAL EXPERIENCE 

  • Athens Information Technology: Assistant Professor, 09/06 –
  • AIT: Post-doctoral researcher, 11/03 – 09/06
  • Emphasis Systems S.A.: Software developer / consultant, 08/03 – 11/03
  • Istos Constructions: IT coordinator, 04/03 – 08/03                
  • Boston University: Research assistant, 06/98 – 10/01 
  • ABB Industrial Systems, Västerås, Sweden: Software developer, 04/95 – 08/95 

RESEARCH EXPERIENCE

  • Performance analysis of telecommunication networks using stochastic modeling, queuing theory, Large Deviations theory, advanced simulation techniques (such as importance sampling), linear and non-linear optimization
  • QoS provisioning
  • Cross-layer design and optimization
  • Cognitive radio
  • Wireless ad hoc and sensor networks
  • Automotive telematics networking and applications
  • Network and data security
  • Protocol specification and verification

RESEARCH INTERESTS

  • Performance analysis of telecommunication networks
  • QoS provisioning
  • Cross-layer design and optimization
  • Wireless ad hoc and sensor networks
  • Automotive telematics networking and applications
  • Cognitive radio
  • Wired / wireless integration
  • Network and data security
  • Hierarchical Temporal Memory
  • Green ICT

INTERNATIONAL / NATIONAL PROJECTS 

Project name: PROACTIVE (PRedictive reasOning and multi-source fusion empowering AntiCipation of attacks and Terrorist actions In Urban EnVironmEnts)
Start: 01/05/2012
End: 30/04/2015
Funding: EU FP7 SEC 285320
 
Project name: SmartEN (Smart Management for Sustainable Human Environment)
Role in project: Work-package leader
Start: 01/11/2009
End: 31/10/2013
Funding: EU FP7 ITN 238726
 
Project name: CROWN (Cognitive Radio Oriented Wireless Networks)
Role in project: Work-package leader
Start: 01/05/2009
End: 30/04/2012
Funding: EU FP7 FET 233843
 
Project name: WINSOC (Wireless Sensor Networks with self-organization capabilities for critical and emergency applications)
Start: 01/09/2006
End: 28/02/2009
Funding: EU FP6 IST 033914
 
Project name: MAGNET Beyond (My personal Adaptive Global NET and Beyond)
Role in project: Task leader
Start: 01/01/2006
End: 01/06/2008
Funding: EU FP6 IST 027396
 
Project name: BroadWay, the way to broadband access at 60 GHz
Start: 01/01/2002
End: 31/12/2004
Funding: EU FP5 IST 32686


TUTORIALS / SHORT COURSES / EXECUTIVE TRAINING

Lectured in PROSTO, PRACSE 2007 and AIT Summer Schools and Research Seminars.
 

STUDENT THESES SUPERVISED more

INTERNATIONAL RECOGNITION / HONORS / AWARDS 

Participated in the 2001 Summer School in "Applied Probability: Risk and Optimization" at Columbia University under a scholarship provided by IBM Research to top Ph.D. candidates from all over the world.
 
SOCIETIES

Currently a member of: 

  • IEEE
  • TEE (Technical Chamber of Greece) 


EDITORIAL WORK / PAPER REVIEWING more

 
PUBLICATIONS 

 JOURNAL PUBLICATIONS: 

J10. B. Han, S. Vassilaras, C.B. Papadias, R. Soman, M.A. Kyriakides, T. Onoufriou, R.H. Nielsen, and R. Prasad, 'Harvesting Energy from Vibrations of the Underlying Structure', SAGE Journal of Vibration and Control, vol. 19, no. 15, pp. 2255-2269, Nov. 2013.

J9. I.T. Christou and S. Vassilaras, 'A Parallel Hybrid Greedy Branch & Bound Scheme for the Maximum Distance-2 Matching Problem',  Elsevier Computers & Operations Research, vol. 40, no. 10, pp. 2387-2397, Oct. 2013.

J8. S. Vassilaras and G. S. Yovanof, 'Shortest Route Mobility Assisted Packet Delivery with Soft Maximum Delay Guarantees in Mobile Ad Hoc Networks',  Elsevier Ad Hoc Networks Journal, vol. 10, no. 6, Aug. 2012, pp. 886–900.

J7. S. Vassilaras and G. S. Yovanof, 'Wireless going in the Cloud: A promising concept or just marketing hype?',  invited paper, Springer Wireless Personal Communications Journal, special issue on Distributed and Secure Cloud Clustering, Vol. 58, No. 1, May 2011, pages 5-16, (available on-line through SpringerLink).

J6. S. Vassilaras and G. S. Yovanof, 'Wireless Innovations as Enablers for Complex & Dynamic Artificial Systems', invited paper,  Springer Wireless Personal Communications Journal, special issue on Wireless Innovation for InterDynamic Technology, Vol. 53, No. 3, May 2010, pages 365-393, (available on-line through SpringerLink).

J5. S. Vassilaras, ‘A Cross-Layer Optimized Adaptive Modulation and Coding Scheme for Transmission of Streaming Media over Wireless Links’, Springer / ACM Wireless Networks, Vol. 16, No. 4, May 2010, pages 903-914, (available on-line through SpringerLink).

J4. S. Vassilaras, D. Vogiatzis and G. S. Yovanof, 'Security and Cooperation in Clustered Mobile Ad-hoc Networks with Centralized Supervision', IEEE Journal on Selected Areas in Communications Special Issue on Security in Wireless Ad Hoc Networks, Vol. 24 (2006), No. 2, pages 329-342.
 
J3. I. Ch. Paschalidis and S. Vassilaras, ‘Importance Sampling for the Estimation of Buffer Overflow Probabilities via Trace-Driven Simulations’, IEEE/ACM Transactions on Networking, Vol. 12 (2004), No. 5, pages 907-919.
 
J2. I. Ch. Paschalidis and S. Vassilaras, ‘Model-Based Estimation of Buffer Overflow Probabilities from Measurements’, ACM SIGMETRICS Performance Evaluation Review, Vol. 29 (2001), No. 1, pages 154-163.
 
J1. I. Ch. Paschalidis and S. Vassilaras, ‘On the Estimation of Buffer Overflow Probabilities from Measurements’, IEEE Transactions on Information Theory, Vol. 47 (2001), No. 1, pages 178-191.

BOOK CHAPTERS:   

B4. D. Dahlhaus, T. Hunziker, S.Vassilaras, H. Al-Raweshidy and M. De Sanctis, ‘PAN-Optimized Air Interfaces’, My personal Adaptive Global NET (MAGNET), (Ed. R. Prasad), Springer Netherlands, 2010.
 
B3. S. Vassilaras, S. Tsevas and Gregory S. Yovanof, ‘An Overview of Wireless MAC Protocols for Vehicular Communications’, 4G Mobile & Wireless Communications Technologies, River Publishers, August 2008.
 
B2. A. Chandershekarapuram, D. Vogiatzis, S Vassilaras and G. S. Yovanof, ‘Architecture Framework for Device Single Sign On in Personal Area Networks’, Lecture Notes in Computer Science, Springer Berlin / Heidelberg, pp.1367-1379, 2006.
 
B1. S. Vassilaras, D. Vogiatzis and G. S. Yovanof, ‘ Design and Optimization of Reputation Mechanisms for Centralized Clustered Ad hoc Networks’, Challenges In Ad hoc Networking, Springer Boston, pp. 347-356, 2006.
 
CONFERENCE PAPERS:

C21. V. Khoury, S. Vassilaras and C. B. Papadias, 'CR-DMAC - A MAC Protocol for Cognitive Radio Networks with Directional Antennas', Special Session on Smart Antenna Enabled Cognitive Radio Techniques: Results from the Cognitive Radio Oriented Wireless Networks (CROWN) project, 4th Intl. Conference on Cognitive Radio and Advanced Spectrum Management (CogART 2010), October 2011, Barcelona, Spain.

C20. S. Vassilaras and I. T. Christou, 'On the Optimal MAC Layer Capacity of Delay Tolerant Mobile Ad Hoc Networks with a Finite Number of Nodes', 22nd Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’11), September 2011, Toronto, Canada.

C19. A. A. Ali, S. Vassilaras and K. Ntagkounakis, 'A Comparative Study of Bandwidth Requirements of VoIP Codecs Over WiMAX Access Networks', 3rd Intl. Conference and Exhibition on Next Generation Mobile Applications, Services and Technologies (NGMAST) 2009, September 2009, Cardiff, Wales, UK.

C18. K. Katrinis, A. Tzanakaki, S. Dweikat, S. Vassilaras, R. Nejabati, D. Simeonidou and G. Zervas, 'Backhauling Wireless Broadband Traffic over an Optical Aggregation Network: WiMAX over OBS', Intl. Workshop on Optical Burst/Packet Switching (WOBS) 2009, September 2009, Madrid, Spain.

C17. D. Liapis, S. Vassilaras and G. S. Yovanof, “Implementing a Low-Cost, Personalized and Location Based Service for Delivering Advertisements to Mobile Users”, 3rd  International Symposium on Wireless Pervasive Computing (ISWPC) 2008, May 2008, Santorini, Greece.

C16. S. Vassilaras, C. E. Abosi and G. S. Yovanof, “An Optimal-Hop-Count Transmission Scheduling Policy with Maximum Delay Guarantees for Delay Tolerant Mobile Ad Hoc Networks”, invited paper, 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’07), September 2007, Athens, Greece.

C15. A. Chandershekarapuram, D. Vogiatzis, S. Vassilaras and G. S. Yovanof, ‘Architecture Framework for Device Single Sign On in Personal Area Networks’, International Workshop on Pervasive Systems (PerSys'06), October/November 2006, Montpellier, France.

C14. D. Vogiatzis, S. Vassilaras, I. Tomkos and G. S. Yovanof, ‘The Emerging NGN Platform for Mobile Services & Automobile Telematics’, invited paper, 45th FITCE Congress, August/September 2006, Athens, Greece.

C13. D. Vogiatzis, N. Pronios, S. Vassilaras and G. S. Yovanof, ‘Metropolitan Wireless Access Networks: A Techno-economic Analysis Framework’, invited paper, 45th FITCE Congress, August/September 2006, Athens, Greece.

C12. S. Vassilaras, D. Vogiatzis and G.S. Yovanof, ‘Design and Optimization of Reputation Mechanisms for Centralized Clustered Ad hoc Networks’, 4th Annual Mediterranean Ad hoc Networking Workshop, June 2005, Ile de Porquerolles, France.

C11. S. Vassilaras, D. Vogiatzis and G.S. Yovanof, ‘On the Robustness of a Novel Reputation Mechanism for Centralized Clustered Ad-hoc Networks’, poster paper, 14th IST Mobile and Wireless Communications Summit, June 2005, Dresden, Germany.

C10. D. Vogiatzis, S. Vassilaras, and G.S. Yovanof, ‘Secure Communication over Heterogeneous Networks with Clustered Mobile Ad hoc Extensions’, 2005 International Workshop on Wireless Ad-hoc Networks, May 2005, London, U.K.

C9. S. Vassilaras, D. Vogiatzis and G.S. Yovanof, ‘Cooperation Enforcement in Mobile Ad hoc Networks with Centralized Supervision’, 11th European Wireless Conference, April 2005, Nicosia, Cyprus.

C8. S. Vassilaras, D. Vogiatzis and G.S. Yovanof, ‘Misbehavior Detection in Clustered Ad-hoc Networks with Central Control’, Wireless Ad Hoc / Sensor Networks and Network Security ITCC 05, April 2005, LasVegas, Nevada.

C7. S. Vassilaras, D. Vogiatzis, T. Dimitriou and G.S. Yovanof, ‘Security Considerations for the Centralized Ad-hoc Network Architecture’, Invited Paper, 2004 International Workshop on Wireless Ad-hoc Networks, June 2004, Oulu, Finland.

C6. I. Ch. Paschalidis and S. Vassilaras, ‘Quick Simulation of a Queue Fed by Arbitrary Traffic Traces’, invited paper, 39th Annual Allerton Conference, October 2001, Monticello, Illinois.

C5. I. Ch. Paschalidis and S. Vassilaras, ‘Importance Sampling for the Estimation of Buffer Overflow Probabilities in Large Communication Switches’, INFORMS APS Conference, July 2001, New York, NY.

C4. I. Ch. Paschalidis and S. Vassilaras, ‘Model-Based Estimation of Buffer Overflow Probabilities from Measurements’, ACM SIGMETRICS, June 2001, Cambridge, Massachusetts.

C3. I. Ch. Paschalidis and S. Vassilaras, ‘On Estimating Buffer Overflow Probabilities under Markov-modulated  Inputs’, invited paper, 37th Annual Allerton Conference, September 1999, Monticello, Illinois.

C2. I. Ch. Paschalidis and S. Vassilaras, ‘On the Estimation of Effective Bandwidths from Measurements’, invited talk, INFORMS Conference, November 1999, Philadelphia, Pensylvania.

C1. D. R. Avresky and S. Vassilaras, ‘Automated Formal Verification of Protocols’, Sixth International Conference on Computer Communications and Networks (ICCCN '97), September 1997, Las Vegas, Nevada. 

INVITED LECTURES

L9. G.S. Yovanof and S. Vassilaras, 'An Outlook of Trends in Wireless Systems, Networks and Novel Mobile Applications', March 2011, FITCE Workshop, Athens Information Technology, Athens, Greece.

L8. G.S. Yovanof and S. Vassilaras, 'Wireless going in the Cloud: A promising concept or just marketing hype?', May 2010, 12th Strategic Workshop, Distributed and Secure Cloud Clustering (DISC), Florence, Italy.

L7. S. Vassilaras, 'Optimizing Throughput over Wireless Links and MANETs under Delay Constraints', November 2009, University of Athens, Athens, Greece.

L6. S. Vassilaras, 'Optimizing Throughput over Wireless Links and MANETs under Delay Constraints', June 2009, Foundation for Research and Technology - Hellas (FORTH), Crete, Greece.

L5. S. Vassilaras, ‘Municipal provision of Wireless Broadband Access: the Philadelphia Experiment’, Workshop on Developing Broadband in Poland – Barriers and Risks, January 2006, National Institute of Telecommunications, Warsaw, Poland.

L4. S. Vassilaras, ‘Cooperation Reinforcement in Wireless Mesh Networks with Centralized Supervision’, April 2005, Boston University, Boston, Massachusetts. 

L3. S. Vassilaras, ‘Towards Measurement-Based Quality of Service Provisioning in Multimedia  Telecommunication Networks’, August 2001, Motorola, Arlington Heights, Illinois.

L2. S. Vassilaras, ‘Importance Sampling for the Estimation of Buffer Overflow Probabilities via Simulation’, February 2001, Nokia Research Center, Burlington, Massachusetts.

L1. S. Vassilaras, ‘Estimating buffer overflow probabilities from measurements’, June 2000, Nokia Research Center, Burlington, Massachusetts.
 

CITATIONS

His entire published work has received over 85 citations (not including self-citations) with an h-index of 6.

View citations on Google Scholar 
 

CONFERENCE/ SYMPOSIUM / WORKSHOP ORGANIZATION

Publicity Chair of the 7th ICST International Conference on Broadband Communications, Networks, and Systems, BROADNETS 2010.

General Chair of the 1st ICST International Conference on Sensor Networks Applications, Experimentation and Logistics, SENSAPPEAL 2009.


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