Short CV

Lazaros Merakos received the Diploma in Electrical and Mechanical Engineering from the National Technical University of Athens, Athens, Greece, in 1978, and the M.S. and Ph.D. degrees in Electrical Engineering from the State University of New York, Buffalo, in 1981 and 1984, respectively. From 1983 to 1986, he was on the faculty of the Electrical Engineering and Computer Science Department, University of Connecticut, Storrs. From 1986 to 1994, he was on the faculty of the Electrical and Computer Engineering Department, Northeastern University, Boston, MA. During the period 1993–1994, he served as Director of the Communications and Digital Processing Research Center, Northeastern University. During the summers of 1990 and 1991, he was a Visiting Scientist at the IBM T. J. Watson Research Center, Yorktown Heights, NY. In 1994, he joined the faculty of the University of Athens, Athens, Greece, where he is presently a Professor in the Department of Informatics and Telecommunications, and Scientific Director of the Networks Operations and Management Center.

His research interests are in the design and performance analysis of communication networks, and wireless/mobile communication systems and services. He has authored more than 200 papers in the above areas. He has served as the scientific director of the Communication Networks Laboratory of the University of Athens in numerous research projects, including the projects RAINBOW, WAND, MOBIVAS, WINE, EURO-CITI, POLOS, ANWIRE, E2R, E2RII, E3, Self-NET funded by the European Union. Dr. Merakos is chairman of the board of the Greek Schools Network, and member of the board of the National Research Network of Greece. In 1994, he received the Guanella Award for the Best Paper presented at the International Zurich Seminar on Mobile Communications.

Administrative Positions

• Assistant Director, CDSP Research Center, Northeastern University, USA, (1990-1992).
• Director, CDSP Research Center, Northeastern University, USA (1992-1994).
• Scientific person in charge of the Network Operations and Management Center of the University of Athens (1997-Present).
• Director of the Communication Networks Laboratory, Department of Informatics and Telecommunications, University of Athens, (1994-Present).
• President of the Greek Universities Network (2000-2008).
• Chairman of the Executive Board of the Greek Schools Network (1999-Present)
• Member of the board of the National Research Network of Greece (1996-Present).
• Director of the Communications and Signal Procesing Sector of the Department of Informatics and Telecommunications (2006–2009).

International Presence

• University of Connecticut Faculty Fellowship, 1985.
• Co-author of the publication that received the Best Paper Award in International Zurich Seminar on Mobile Communications, ETH, Zurich, Switzerland, March 1994.
• Co-author of the publication that received the Best Paper Award in IEEE International Symposium on Communications, Control and Signal Processing (ISCCSP 2008), March 2008.
• Evaluator of research proposals for the USA National Science Foundation and the European Commission.
• President of the Technical Committee of the Networking 2004 Conference (Wireless Networks Track).
• Program Chair of IFIP DAIS-FMOODS 2004.
• Organizer, TPC member, Session chairman and invited speaker in various international conferences.
• Special issue editor in IEEE Communications Magazine, IEEE Personal Communications Magazine.
• Author of 230 scientific publications in books, international journals, and peer-reviewed conference proceedings.
• Scientific person in charge and Senior Researcher in about 60 European and National research and development projects.
• More than 1000 citations.
• Reviewer in various journals, such as ΙΕΕΕ Transactions on Communications, Vehicular Technology, IEEE Journal on Selected Areas in Communications.

Research Projects (Scientific Person in Charge)

International Projects

• WAND: Wireless AΤM Network Demonstrator, 1995-1997
• RAINBOW: Radio Access Independent Broadband on Wireless, 1995-1997
• QoS in Wireless LANs, 1997
• Wireless Internet Networks (WINE), 2000-2001
• MOBIVAS: Μobile value-added-services through software radio, 2000 - 2002
• EUROCITI: EUROpean CITIes platform for on-line transaction services, 2000-2002
• POLOS: Ιntegrated Platform for Location -Based Services, 2002 - 2004
• ANWIRE: Academic Network on Wireless Internet Research in Europe, 2002 – 2004
• E2R: End-to-End Reconfigurability, 2004 – 2005
• LIAISON: Location Based Services for the Enhancement of Working Environment, 2004 -2007
• E2R: End-to-End Reconfigurability - Phase 2, 2006 - 2007
• Enabling Grids for E-Science II (EGEE-II), 2006 - 2008
• End-to-End Efficiency E3, 2008 – 2009
• SELF NET: Management OF Cognitive Future Internet Elements, 2008 - 2010
• PeerAssist: A P2P platform supporting virtual communities to assist independent living of senior citizens, 2010-2013

Greek Projects

• Networking and advanced services over a public ATM network, 1999 - 2001
• Harmonization and evolution of Intelligent Network protocols, 1998-1999
• Integration of DECT wireless access technologies in existing and futute OTE systems-networks, 1999 - 2000
• Environment creation and software development for the control of integrated services for digital telecommunication centers of public networks for Internet use, 1999 - 2000
• Video and audio transmission with guaranteed Quality of Service over IP Networks (PENED), 2000 - 2001
• Study of 3G mobile systems (IMT 2000 - UMTS), 2001 - 2004
• ΤΕΜΡΟ: TEchnologies and applications in Multi-PrOtocol networks, 2002 - 2003
• IP over WDM - Alternative techniques for the management of IP traffic over WDM networks, 2001
• Broadband Services for ADSL Networks, 2002
• Methods and Tools for the Modeling of Future Mobile Communication Systems (Inter-country Collaboration between Greece and Germany), 2003 – 2004
• Always Best Connected in Heterogeneous Mobile Communication Networks (PYTHAGORAS - EPEAEK II), 2004 - 2005
• Design and Implementation of a User Authentication Mechanism in Wireless Local Area Networks, 2004 - 2006
• Multimedia Transmission in Wireless Local Area Networks Environment (Inter-country Collaboration between Greece and Hungary), 2004 - 2006
• ΙNTERWISIS: Integration of GPRS and RFID for Wide-area Wireless Security & Identification Systems (PABET), 2005 - 2007
• Integrated Architecture for the provision of the "Always Best Connected" concept in 4th Generation Mobile Communication Networks (PENED), 2005 - 2008
• Sensor Networks: Algorithm Design, Protocol Design and Performance Study (PENED), 2005 - 2008
• CORINE: Support of Location Services in In-doors and Out-doors spaces, 2006 – 2008
• Using broadband mesh networks to support advanced applications for intelligent traffic systems, 2006 - 2008
• Design and implementation of an advanced access management mechanism in heterogeneous mobile networks, 2006 - 2007
• SECURENET: Adaptable mobile Video transmission for surveillance and security services, 2006 - 2007
• Cross-Layer Design for the Quality of Service improvement in heterogeneous networks, (HRAKLEITOS II)
• Resource Management in Opportunistic Spectrum Access Networks, (HRAKLEITOS II)

Recent Publications

Journals

1. N. Houssos, A. Alonistioti, L. Merakos, "Specification and dynamic introduction of 3rd party, service-specific adaptation policies for mobile applications", Journal on Mobile Networks and Applications (MONET), Special Issue on Mobile Services, Vol. 10, No. 4, Jan. 2005, pp. 405-421.
2. M. Koutsopoulou, A. Kaloxylos, A. Alonistioti and L. Merakos, "A Platform for Charging, Billing & Accounting in Future Mobile Networks," Computer Communications, Elsevier, Special Issue on "Emerging Middleware for Next Generation Networks", to appear in Fall 2005.
3. A. Kaloxylos, G. Lampropoulos, N. Passas and L. Merakos, "A Flexible Handover Mechanism for Seamless Service Continuity in Heterogeneous Environments," Computer Communications, Elsevier Science, Special issue on "End-to-end QoS provision advances", 2005.
4. V. Gazis, N. Alonistioti and L. Merakos, "Toward a generic Always Best Connected capability in integrated UMTS/WLAN mobile networks (and beyond)", IEEE Wireless Communications Magazine, Vol. 12, No 3, June 2005.
5. G. Alyfantis, S. Hadjiefthymiades, and L. Merakos, "An Overlay Smart Spaces System for Load Balancing in Wireless LANs", Mobile Networks and Applications (MONET) Journal, Vol. 11, No. 3, 2005.
6. G. Lampropoulos, N. Passas, L. Merakos, and A. Kaloxylos, "Handover Management Architectures in Integrated WLAN/Cellular Networks", IEEE Communications Surveys and Tutorials, vol. 7, no. 4, December 2005.
7. V. Gazis, N. Alonistioti and L. Merakos, "Metadata design for reconfigurable protocol stacks in beyond 3G", Wireless Personal Communications, Springer Science, Vol. 36, No 1, Jan. 2006, pp. 1-28.
8. C. Xenakis and L. Merakos, "Alternative Schemes for Dynamic Secure VPN Deployment over UMTS," Wireless Personal Communications, Springer, Vol. 36, No. 2, Jan. 2006, pp. 163-194.
9. V. Gazis, N. Alonistioti and L. Merakos, "A generic model for reconfigurable protocol stacks in beyond 3G", IEEE Wireless Communications Magazine, Vol. 13, No.3, 2006.
10. C. Xenakis, N. Laoutaris, L. Merakos and I. Stavrakakis, "A generic characterization of the overheads imposed by IPsec and associated cryptographic N. Houssos, A. Alonistioti, L. Merakos, "Specification and dynamic introduction of 3rd party, service-specific adaptation policies for mobile applications", Journal on Mobile Networks and Applications (MONET), Special Issue on Mobile Services, Vol. 10, No. 4, Jan. 2005, pp. 405-421.
11. M. Koutsopoulou, A. Kaloxylos, A. Alonistioti and L. Merakos, "A Platform for Charging, Billing & Accounting in Future Mobile Networks," Computer Communications, Elsevier, Special Issue on "Emerging Middleware for Next Generation Networks", to appear in Fall 2005.
12. A. Kaloxylos, G. Lampropoulos, N. Passas and L. Merakos, "A Flexible Handover Mechanism for Seamless Service Continuity in Heterogeneous Environments," Computer Communications, Elsevier Science, Special issue on "End-to-end QoS provision advances", 2005.
13. V. Gazis, N. Alonistioti and L. Merakos, "Toward a generic Always Best Connected capability in integrated UMTS/WLAN mobile networks (and beyond)", IEEE Wireless Communications Magazine, Vol. 12, No 3, June 2005.
14. G. Alyfantis, S. Hadjiefthymiades, and L. Merakos, "An Overlay Smart Spaces System for Load Balancing in Wireless LANs", Mobile Networks and Applications (MONET) Journal, Vol. 11, No. 3, 2005.
15. G. Lampropoulos, N. Passas, L. Merakos, and A. Kaloxylos, "Handover Management Architectures in Integrated WLAN/Cellular Networks", IEEE Communications Surveys and Tutorials, vol. 7, no. 4, December 2005.
16. V. Gazis, N. Alonistioti and L. Merakos, "Metadata design for reconfigurable protocol stacks in beyond 3G", Wireless Personal Communications, Springer Science, Vol. 36, No 1, Jan. 2006, pp. 1-28.
17. C. Xenakis and L. Merakos, "Alternative Schemes for Dynamic Secure VPN Deployment over UMTS," Wireless Personal Communications, Springer, Vol. 36, No. 2, Jan. 2006, pp. 163-194.
18. V. Gazis, N. Alonistioti and L. Merakos, "A generic model for reconfigurable protocol stacks in beyond 3G", IEEE Wireless Communications Magazine, Vol. 13, No.3, 2006.
19. C. Xenakis, N. Laoutaris, L. Merakos and I. Stavrakakis, "A generic characterization of the overheads imposed by IPsec and associated cryptographic algorithms," Computer Networks, Elsevier Science, Vol. 50, No. 17, Dec 2006, pp. 3225-3241.
20. G. F. Marias, G. Papazafeiropoulos, N. Prigouris, S. Hadjiefthymiades, and L. Merakos, "An Innovative gateway for indoor positioning," EURASIP Journal on Applied Signal Processing, Special Issue on Wireless Location Technologies and Applications, 2006.
21. G. Alyfantis, S. Hadjiefthymiades, and L. Merakos, "A Cooperative Uplink Power Control Scheme for Elastic Data Services in Wireless CDMA Systems", ACM SIGCOMM Computer Communication Review, Vol.36, No.3, 2006
22. G. Alyfantis, S. Hadjiefthymiades, and L. Merakos, "An Overlay Smart Spaces System for Congestion-Free & Load Balanced Wireless LANs", Mobile Networks and Applications (MONET), Special Issue on "Internet Wireless Access: 802.11 and Beyond," Kluwer Academic Publishers, Vol. 11, No. 2 , April 2006.
23. M. Koutsopoulou, A. Kaloxylos, A. Alonistioti, L. Merakos "A Platform for Charging, Billing & Accounting in Future Mobile Networks", Computer Communications, Elsevier, Special Issue on "Emerging Middleware for Next Generation Networks", Vol. 30, Issue 3, February 2007, pp. 516-526.
24. G. Lampropoulos, N. Passas, A. Kaloxylos, and L. Merakos, "A Flexible UMTS/WLAN Architecture for Improved Network Performance," Wireless Personal Communications, special issue on "Seamless Handover in Next Generation Wireless Mobile Networks," Springer, vol. 43, no. 3, November 2007.
25. V. Gazis, N. Alonistioti, and L. Merakos, "A generic architecture for Always Best Connected UMTS/WLAN mobile networks", International Journal of Wireless and Mobile Computing (IJWMC), vol. 2, no. 4, pp. 248-262(15), 2007.
26. V. Gazis, N. Alonistioti and L. Merakos, "Towards cognitive 4G Mobile Networks", Mediterranean Journal of Computers and Networks, special issue on Recent Advances In Heterogeneous Cognitive Wireless Networks, Vol. 4, No. 3, July 2008.
27. V. Baousis, M. Kyriakakos, S. Hadjiefthymiades, and L. Merakos, "Performance evaluation of a mobile agent-based platform for ubiquitous service provision," Pervasive and Mobile Computing, Vol. 4, No.5, October 2008, pp. 755-774.
28. D. Triantafyllopoulou, N. Passas, L. Merakos , N. C. Sagias, P. T. Mathiopoulos, "E-CLEMA: A cross-layer design for improved quality of service in mobile WiMAX networks," Wireless Communications and Mobile Computing, vol. 9, no. 9, Nov. 2008, pp. 1274-1286.
29. V. Baousis, V. Spiliopoulos, E. Zavitsanos, S. Hadjiefthymiades, and L. Merakos, "Semantic Web Services and Mobile Agents integration for efficient mobile services," International Journal on Semantic Web and Information Systems, vol. 4, no. 1, Jan.-March 2008, pp. 1-19.
30. Z. Boufidis, N. Alonistioti, and L. Merakos, "Architecture and Signaling Protocol for Migration to Cognitive Reconfigurable Post-3G Mobile Systems," ACM SIGMOBILE Mobile Computing and Communications Review, vol. 12, no. 4, Oct. 2008, pp. 15-31.
31. D. Triantafyllopoulou, N. Passas, A. Kaloxylos and L. Merakos, "Coordinated Handover Initiation and Cross-Layer Adaptation for Mobile Multimedia Systems," IEEE Transactions on Multimedia, Special issue on quality-driven cross-layer design for multimedia communications, vol. 11, no. 6, Oct. 2009, pp.1131-1139.
32. G. Alyfantis, S. Hadjiefthymiades, and L. Merakos, "Exploiting User Location for Load Balancing WLANs and Improving Wireless QoS," ACM Transactions on Autonomous and Adaptive Systems, vol. 4, no. 2, May 2009.
33. V. Gazis, Z.Boufidis, N. Alonistioti, and L. Merakos, "Towards the Functional Enhancement of 3GPP Networks with Reconfiguration Capacities,"Wireless Personal Communications, Jan. 2010.
34. D. Xenakis, D. Tsolkas, N. Passas, N. Alonistioti, and L. Merakos, "Dynamic Resource Allocation in Adaptive Wireless OFDMA Systems", Wiley Wireless Communications and Mobile Computing (WCMC) Journal, available online at Wiley Online Library, Oct. 2010.
35. D. Triantafyllopoulou, N. Passas, E. Zervas, and L. Merakos, "Analysis and Optimization of a Cross-Layer Adaptation Mechanism for Real-Time Applications in Wireless Networks", Springer Wireless Networks (WINET) Journal, vol. 17, no. 5, pp. 1339-1354, July 2011.

Conferences

1. V. Baousis, M. Kyriakakos, S. Hadjiefthymiades, and L. Merakos, "Performance Evaluation of a Mobile Agent-Based VHE Architecture in 3G Networks," Proc. IEEE International Conference on Pervasive Services (ICPS), Santorini, Greece, July 2005.
2. S. Xergias, N. Passas, and L. Merakos, "Flexible Resource Allocation in IEEE 802.16 Wireless Metropolitan Area Networks," Proc. 14th IEEE Workshop on Local and Metropolitan Area Networks, Chania, Greece, Sept. 2005.
3. Z. Boufidis, N. Alonistioti, L. Merakos, "Quality of Service Negotiation in support of Post-Download User Sessions", Proc. 4th Karlsruhe Workshop on Software Radios, Karlsruhe, Germany, March 2006.
4. S. Xergias, A. Lygizou, N. Passas, and L. Merakos, "QoS Sensitive Traffic Scheduling in Broadband Wireless Mesh Networks", Proc. 15th IST Summit on Mobile and Wireless Communications, Mykonos, Greece, June 2006.
5. S. Xergias, N. Passas, and L. Merakos, "Efficient Multimedia Transmission in WiMax Mesh Networks", Proc. IEEE International Conference on Communications (ICC) 2006, Workshop on IP over Broadcasting Networks, Istanbul, Turkey, June 2006.
6. Z. Boufidis, N. Alonistioti, and L. Merakos, "RSS: The Reconfiguration Support Subsystem for Next-Generation Mobile Networks," Proc. IEEE International Conference on Communications (ICC) 2006, Istanbul, Turkey, June 2006.
7. G. Alyfantis, S. Hadjiefthymiades, L. Merakos and P. Kostopoulos, "A Distributed Algorithm for Sharing Web Cache Disk Capacity," Proc. ICPADS 2006, Minneapolis, Minnesota, July 2006.
8. G. Alyfantis, S. Hadjiefthymiades and L. Merakos, "Proactive Resource Management for the Mitigation of Service Discontinuation in Mobile Networks," Proc. 15th International Conference on Computer Communications and Networks (ICCCN'06), Arlington Virginia, October 2006.
9. G. Alyfantis, S. Hadjiefthymiades and L. Merakos, "On Fair and Efficient Power Control in CDMA Wireless Data Networks," Proc. 15th International Conference on Computer Communications and Networks (ICCCN'06), Arlington Virginia, October 2006.
10. V. Baousis, E. Zavitsanos, V. Spiliopoulos, S. Hadjiefthymiades, L. Merakos, and G. Veronis, "Wireless Web Services using Mobile Agents and Ontologies," Proc. IEEE International Conference on Pervasive Services (ICPS), Lyon, France, June 2006.
11. G. Lampropoulos, N. Passas, L. Merakos, and A. Kaloxylos, "A Seamless Service Continuity Scheme for Enhanced Network Performance in UMTS/WLAN Networks", Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Helsinki, Finland, September 2006.
12. G. Lampropoulos, N. Passas, L. Merakos, and A. Kaloxylos, "A Seamless Service Continuity Scheme for Enhanced Network Performance in UMTS/WLAN Networks," Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Helsinki, Finland, September 2006.
13. Z.G. Papadimitriou, P.S. Bithas, P.T. Mathiopoulos, N.C. Sagias, and L. Merakos, Proc. IEEE International Workshop on Signal Design and Its Applications in Communications (IWSDA 2007), Sept. 2007.
14. M. Kyriakakos, S. Hadjiefthymiades, and L. Merakos, "Parametric Dimensioning and Enhancements of a Path Prediction Algorithm," Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Athens, Greece, September 2007.
15. I. Modeas, A. Kaloxylos, N. Passas, and L. Merakos, "An Algorithm for Radio Resources Management in Integrated Cellular/WLAN Networks," Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Athens, Greece, September 2007.
16. G. Lampropoulos, A. Kaloxylos, N. Passas, and L. Merakos, "A Power Consumption Analysis of Tight-Coupled WLAN/UMTS Networks," Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Athens, Greece, September 2007.
17. M. Koutsopoulou, S. Panagiotakis, N. Alonistioti, and L. Merakos, "LIAISON Customised Billing Module," Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Athens, Greece, September 2007.
18. G. Alyfantis, G. Marias, S.Hadjiefthymiades, and L. Merakos, "Non-cooperative Dynamic Spectrum Access for CDMA networks," Proc. IEEE Globecom 2007, Washington DC, USA, November, 2007
19. D. Xenakis, D. Tsolkas, N. Passas, and L. Merakos, "A Dynamic Subchannel Allocation Algorithm for IEEE 802.16e Networks," Proc. IEEE International Symposium on Wireless Pervasive Computing (ISWPC), Santorini, Greece, May 2008.
20. Z.G. Papadimitriou, P.T. Mathiopoulos, N.C. Sagias, and L. Merakos, "On the Weibull distribution with arbitrary correlation," 3rd IEEE International Symposium on Communications, Control and Signal Processing (ISCCSP 2008), March 2008 (Best Paper Award).
21. A. Lygizou, S. Xergias, N. Passas, and L. Merakos, "A Prediction-Based Scheduling Mechanism for Interconnection between WiMAX and Satellite Networks Interactive Network," Proc. International Wireless Communications and Mobile Computing Conference (IWCMC), Aug. 2008, pp. 248-254.
22. D. Xenakis, D. Tsolkas, N. Passas, and L. Merakos, "Dynamic resource allocation in adaptive multiuser multicarrier systems", European Wireless 2010, Lucca, Italy, April 2010.
23. D. Triantafyllopoulou, N. Passas, E. Zervas, and L. Merakos "Optimized Cross-Layer Adaptation for Improved Resource Management in Wireless Networks", The 8th International Symposium on Modeling and Optimization in Mobile, Ad-Hoc and Wireless Networks (WiOpt 2010), Workshop on Resource Allocation in Wireless Networks (RAWNET 2010), Avignon, France, June 2010.
24. S. Xergias, N. Passas, S. Sioutas, and L. Merakos, "A joint traffic scheduling and slot allocation algorithm for mobile WiMAX Networks", The 21st IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2010), Istanbul, Turkey, September 2010.
25. D. Tsolkas, D. Xenakis, N. Passas, and L. Merakos, "Opportunistic Spectrum Access over Mobile WiMAX Networks", The 15th IEEE International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks (CAMAD 2010), Miami, USA, December 2010.
26. D. Tsolkas, N. Passas, and L. Merakos, "Increasing Spectrum Utilization in Wireless Infrastructure-based Systems", The 16th IEEE Symposium on Computers and Communications (IEEE ISCC), Corfu, Greece, June 2011.