Πρόσφατες Δημοσιεύσεις

Διεθνή Περιοδικά

  1. S. Hadjiefthymiades, V. Matthaiou and L. Merakos, "Supporting the WWW in Wireless Communications through Mobile Agents", ACM/Kluwer Mobile Networks and Applications Journal (MONET) 7, Special Issue on Pervasive Computing, 2002, pp. 305-313.

  2. S. Hadjiefthymiades, S. Papayiannis, and L. Merakos, "Using Path Prediction to Improve TCP Performance in Wireless/Mobile Communications", IEEE Communications Magazine, August 2002.

  3. C. Xenakis and L. Merakos, "On-Demand Network-wide VPN Deployment in GPRS", IEEE Network, Nov/Dec 2002.

  4.  S. Hadjiefthymiades and L. Merakos, "Proxies + Path Prediction: Improving Web Service Provision in Wireless-Mobile Communications", ACM/Kluwer Mobile Networks and Applications Journal (MONET), Special Issue on Mobile and Wireless Data Management, no. 8, 2003, pp. 389-399.

  5. S. Papayiannis, S. Hadjiefthymiades, and L. Merakos, "Implications of proactive datagram caching on TCP performance in wireless/mobile communications", Computer Communications, Elsevier Science, 26(2), Jan. 2003, pp. 79-89.

  6. S. Panagiotakis, A. Alonistioti, and L. Merakos, "An Advanced Location Information Management Scheme for Supporting Flexible Service Provisioning in Reconfigurable Mobile Networks", IEEE Communications Magazine, Feb. 2003.

  7. A. Ioannidis, M. Spanoudakis, G. Priggouris, S. Hadjiefthymiades, and L.  Merakos, "An XML-Based Platform for E-Government Services Deployment", Journal of Web Engineering, Rinton Press, Vol.1, No.2, 2003.

  8. S. Paskalis, A. Kaloxylos, E. Zervas, and L. Merakos,  "An Efficient RSVP-Mobile IP Interworking Scheme", ACM Journal for Special Topics in Mobile Networks and Applications (MONET), vol. 8, no. 3, June 2003.

  9. M. Kyriakakos, N. Fragkiadakis, S. Hadjiefthymiades, and L. Merakos, "A realistic mobility pattern generator for the performance evaluation of mobile computing mechanisms", International Journal of Communication Systems, Wiley InterScience, vol. 16, 2003, pp. 935-950.

  10. S. Panagiotakis, M. Koutsopoulou, A. Alonistioti, N. Houssos, V. Gazis and L. Merakos, "An advanced service provision framework for reconfigurable mobile networks", Int. J. Mobile Communications, Vol. 1, No. 4, 2003, pp. 425-438.

  11. M. Kyriakakos, S. Hadjiefthymiades, N. Fragkiadakis, and L. Merakos, "Enhanced Path Prediction for Network Resource Management in Wireless LANs", IEEE Wireless Communications Magazine, special issue on “The Evolution of Wireless LANs and PANs", vol. 10, no. 6, December 2003, pp. 62-69.

  12. N. Passas, E. Zervas, G. Hortopan, and L. Merakos, "A Flow Rejection Algorithm for QoS Maintenance in a Variable Bandwidth Wireless IP Environment", IEEE Journal on Selected Areas in Communications (JSAC), special issue on "All-IP Wireless Networks", 2004.

  13. M. Koutsopoulou, A. Kaloxylos, A. Alonistioti, L. Merakos, P. Philippopoulos, "An Integrated Charging, Accounting & Billing Management Platform for the Support of Innovative Business Models in Mobile Networks",  International Journal on Mobile Communications (IJMC), Vol. 2, No 4, 2004, pp.418-434.

  14. C. Xenakis and L. Merakos, "Security in 3rd Generation Mobile Networks", Computer Communications, Elsevier Science, 27 (7), May 2004, pp. 638-650.

  15. N. Houssos, A. Alonistioti, L. Merakos, E. Mohyeldin, M. Dillinger, M. Fahrmair and M. Schoenmakers, "Advanced adaptability and profile management framework for the support of flexible mobile service provision", IEEE Wireless Communications Magazine, Special Issue on "(R)Evolution towards 4G Mobile Communication Systems".

  16. M. Koutsopoulou, A. Kaloxylos, A. Alonistioti, K. Kawamura, L. Merakos, "Evolution of the Charging, Accounting & Billing Management Schemes in Mobile Telecommunication Networks and the Internet", IEEE Communications Surveys and Tutorials, 1st Quarter 2004, Vol. 6, No 1.

  17. D. Vali, S. Paskalis, L. Merakos, and A. Kaloxylos, "A Survey of Internet QoS Signaling", IEEE Communications Surveys and Tutorials, 4th Quarter 2004, Vol. 6, No 4, pp. 32-44.

  18. C. Xenakis and L. Merakos, "IPsec-based End-to-end VPN Deployment over UMTS", Computer Communications, Elsevier Science, vol. 27, No. 17, Nov. 2004, pp. 1693-1708.

  19. 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.

  20. N. Passas, S. Paskalis, A. Kaloxylos, et. al, "Enabling Technologies for the ¨Always Best Connected¨ Concept", Wiley Wireless Communications and Mobile Computing (WCMC) Journal, vol. 5, no. 2, March 2005.

  21. A. Salkintzis, G. Dimitriadis, D. Skyrianoglou, N. Passas, F.-N. Pavlidou, "Seamless Continuity of Real-Time Video Across UMTS and WLAN Networks: Challenges and Performance Evaluation", special issue on "Towards Seamless Interworking of WLAN and Cellular Networks", IEEE Wireless Communications Magazine, vol. 12, no. 3, June 2005.

  22. N. Passas, A. Salkintzis, G. Nikolaidis, M. Katsamani, "A New Technique to Expedite RSVP Path Re-establishments in 802.11 Wireless LANs", Springer Wireless Personal Communications Journal, vol. 33, no. 1, April 2005.

  23. 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.

  24. 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.

  25. 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.

  26. 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.

  27. 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.

  28. 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.

  29. 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.

  30. 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.

  31. A. Floros, D. Skyrianoglou, N. Passas, T. Karoubalis, "A Simulation Platform for QoS Performance Evaluation of IEEE 802.11e", The Mediterranean Journal of Computers and Networks, vol. 2, no. 2, April 2006.

  32. N. Passas, D. Skyrianoglou, and P. Mouziouras, "Prioritized Support of Different Traffic Classes in IEEE 802.11e Wireless LANs", Elsevier Computer Communications Journal, vol. 29, no. 15, September 2006.

  33. C. Xenakis, "Malicious actions against the GPRS technology", Computer Virology, Springer, Vol. 2, No. 2, Nov. 2006, pp. 121-133.

  34. D. Skyrianoglou, N. Passas, and A. Salkintzis, "ARROW: An Efficient Traffic Scheduling Algorithm for IEEE 802.11e HCCA", IEEE Transactions on Wireless Communications, vol. 5, no.12, December 2006.

  35. 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.

  36. 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.

  37. 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.

  38. I. Priggouris, D. Spanoudakis, M. Spanoudakis, S. Hadjiefthymiades, "A generic framework for Location-Based Services provisioning", Mobile Information Systems (Special Issue: Managing Interaction, Location, and Communication in Mobile Information Systems), Volume 2, Number 2-3, , January, 2006.

  39. V. Tsetsos, O. Sekkas, I. Priggouris, S. Hadjiefthymiades, "A Scheduling Framework for Enterprise Services", Journal of Systems and Software (JSS), 79(2), pp. 259-272, Elsevier, February, 2006.

  40. V. Tsetsos, G. Alyfantis, T. Hasiotis, O. Sekkas and S. Hadjiefthymiades, "Towards Commercial Wireless Sensor Networks: Business and Technology Architecture", Ad Hoc & Sensor Wireless Networks Journal (AHSWN), 2(1) , Old City Publishing, March, 2006.

  41. 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.

  42. G. F. Marias, K. Papapanagiotou, V. Tsetsos, O. Sekkas and P. Georgiadis, "Integrating a Trust Framework with a Distributed Certificate Validation Scheme for MANETs", EURASIP Journal on Wireless Communications and Networking (JWCN), Special Issue on Wireless Network Security, Vol. 2006, Hindawi Publishing Corp., May, 2006.

  43. I. Priggouris, D. Spanoudakis, M. Spanoudakis, and S. Hadjiefthymiades, "A generic framework for Location-Based Services provisioning", Mobile Information Systems (Special Issue: Managing Interaction, Location, and Communication in Mobile Information Systems), Volume 2, Number 2-3, , June, 2006.

  44. V. Tsetsos, C. Anagnostopoulos, P. Kikiras, S. Hadjiefthymiades, "Semantically enriched navigation for indoor environments", International Journal of Web and Grid Services, Vol. 2, No. 4, Interscience Publishers, December, 2006.

  45. 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.

  46. 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.

  47. 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.

  48. C. Anagnostopoulos, A. Tsounis and S. Hadjiefthymiades, "Context-Awareness in Mobile Computing Environments", Advances in Wireless Communications: Enabling Technologies for 4G, pages: 445-464,Volume 42, Number 3 / August, 2007, Springer, August, 2007.

  49. C. Anagnostopoulos and S. Hadjiefthymiades, "Enhancing Situation Aware Systems through Imprecise Reasoning", IEEE Transactions on Mobile Computing, vol. 7, no. 9, , September, 2008 , IEEE Computer Society, September, 2007.

  50. D. Triantafyllopoulou, N. Passas, A. Salkintzis, and A. Kaloxylos, "A Heuristic Cross-Layer Mechanism for Real-Time Traffic over IEEE 802.16 Networks", Wiley's International Journal of Network Management, special issue on "Management Solutions for QoS Support over the Entire Audio-Visual Service Distribution Chain", vol. 17 Issue 5, pp. 347-361, Sept./Oct. 2007.

  51. C. Xenakis, C. Ntantogian, "Security Architectures for B3G Mobile Networks”, Telecommunication Systems", Springer, Vol.35, pp: 123-139, Aug. 2007.

  52. C.Anagnostopoulos, Y.Ntarladimas, and S.Hadjiefthymiades,, "Situational Computing: An Innovative Architecture with Imprecise Reasoning ", Journal of Systems and Software, Elsevier, December, 2007.

  53. I.Maglogiannis, and S.Hadjiefthymiades, "EmerLoc: Location-Based Services for Emergency Medical Incidents", to appear in the International Journal of Medical Informatics, Elsevier, , December, 2007.

  54. G. Lampropoulos, A. Salkintzis, and N. Passas, "Media Independent Handover for Seamless Service Provision in Heterogeneous Networks", feature topic on "New Trends in Mobile Internet Technologies and Applications", IEEE Communications Magazine, vol. 46, no. 1, January 2008.

  55. S. Xergias, N. Passas, and A. Salkintzis, "Centralized Resource Allocation for Multimedia Traffic in IEEE 802.16 Mesh Networks", Proceedings of the IEEE, vol. 98, issue 1, January 2008.

  56. C. Xenakis, "Security Measures and Weaknesses of the GPRS Security Architecture", International Journal of Network Security, Vol.6, No.2, pp:158–169, Mar. 2008.

  57. C. Anagnostopoulos, S. Hadjiefthymiades, "Imprecise Analogical and Similarity Reasoning about Contextual Information", Intelligent Techniques and Tools for Novel System Architectures Series, Studies in Computational Intelligence, vol. 109, C. Panagiotis, P. Ilias, Kacprzyk Janusz (Eds.) 2008, 520 p., Hardcover, ISBN: 978-3-540-77621-5, , May, 2008.

  58. 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.

  59. A.K. Salkintzis, N. Passas, and D. Skyrianoglou,  "On the Support of Voice Call Continuity across UMTS and Wireless LANs", Wiley Wireless Communications and Mobile Computing (WCMC) Journal, vol. 8, issue 7, September 2008.

  60. C. Xenakis, C. Ntantogian, I. Stavrakakis, "A network-assisted mobile VPN for securing users data in UMTS", Computer Communications, Elsevier Science, vol. 31, No. 14, pp. 3315-3327 September 2008.

  61. C. Anagnostopoulos, S. Hadjiefthymiades, "On the Application of Epidemical Spreading in Collaborative Context Aware Computing", ACM SIGMOBILE Mobile Computing and Communications Review, , September, 2008.

  62. 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.

  63. C. Anagnostopoulos, S. Hadjiefthymiades, Y. Ntarladimas and E. Zervas, "On the use of Epidemical Information Spreading in Mobile Computing Environments", Special Issue on Recent Advances In Heterogeneous Cognitive Wireless Networks, Mediterranean Journal of Computers and Networks, , December, 2008.

  64. 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", Wiley's Wireless Communications and Mobile Computing, vol. 9, no. 9, pp. 1274-1286, Sept. 2009.

  65. 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, to appear.

  66. 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, to appear.

  67. A. Lygizou, S. Xergias, N. Passas, and L. Merakos,  "A Prediction-based Scheduling Mechanism for Interconnection between WiMax and Satellite Networks",  International Journal of Autonomous and Adaptive Communications Systems, accepted for publication.

  68. 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, pp. 1131-1139, Oct. 2009.

  69. 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, June 2009.

  70. C. Ntantogian, C. Xenakis, "One-pass EAP-AKA Authentication in 3G-WLAN Integrated Networks", Wireless Personal Communications, Springer, (accepted for publication). 

  71. C. Anagnostopoulos, S. Hadjiefthymiades, "Advanced Inference in Situation Aware Computing", IEEE Transactions on Systems, Man, and Cybernetics--Part A: Systems and Humans, Volume: 39, Issue: 5, October, 2009.

  72. E. Zervas, A. Mpimpoudis, C. Anagnostopoulos, O. Sekkas, S. Hadjiefthymiades, "Multisensor Data Fusion for Fire Detection", Elsevier Information Fusion Journal, [to appear - Oct 2009], Elsevier, October, 2009.

  73.  I. Modeas, A. Kaloxylos, G. Lampropoulos, N. Passas, and L. Merakos, "Radio Access Selection in Integrated UMTS/WLAN Networks", International Journal of Communications, Network and System Sciences, Scientific Research Publishing, vol. 2, no. 9, pp. 805-821, December 2009.

  74. A. Kaloxylos, I. Modeas, F. Georgiadis, and N. Passas, "Network Selection Algorithm for Heterogeneous Wireless Networks: from Design to Implementation", International Journal of Network Protocols and Algorithms, Scientific Research Publishing, vol. 1, no. 1, pp. 27-47, December 2009.

  75. V. Baousis, M. Kyriakakos, S. Hadjiefthymiades, L. Merakos, "A Multiagent Platform for Ubiquitous Service Provision", Journal of Network and Systems Management (JNSM), Vol. 17, No. 4, December, 2009

  76. A. Merentitis, and D. Triantafyllopoulou, "Resource Allocation with MAC Layer Node Cooperation in Cognitive Radio Networks", Hindawi International Journal of Digital Multimedia Broadcasting, special issue on "Spectrum Sharing and Sensing for Future Broadband Networks: The Cognitive Radio Technology", vol. 2010, Article ID 458636, 11 pages, 2010.

  77. V. Tsetsos, A. Papadimitriou, C. Anagnostopoulos, and S. Hadjiefthymiades, "Integrating Interactive TV Services and the Web through Semantics", to appear in Journal On Semantic Web and Information Systems (IJWSIS), IGI-Global, , April, 2010

  78. T. Anagnostopoulos, C. Anagnostopoulos, S. Hadjiefthymiades, "An Adaptive Location Prediction Model based on Fuzzy Control", Journal of Computer Communications, Elsevier, Elsevier, August, 2010

  79. 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, accepted for publication.

 

Διεθνή Συνέδρια

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. C. B. Anagnostopoulos, Y. Ntarladimas, S. Hadjiefthymiades, "Situation Awareness: Dealing with Vague Context", ICPS'06 : IEEE International Conference on Pervasive Services 2006, Lyon, France, 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. P. Kikiras, V. Tsetsos, and S. Hadjiefthymiades, "Ontology-based User Modeling for Pedestrian Navigation Systems", ECAI 2006 Workshop on Ubiquitous User Modeling (UbiqUM), Riva del Garda, Italy, August, 2006.

  9. O. Sekkas, S. Hadjiefthymiades and E. Zervas, "Fusing sensor information for location estimation", 10th East-European Conference on Advances in Databases and Information Systems, Thessaloniki, Greece, September, 2006.

  10. C. B. .Anagnostopoulos, Y.Ntarladimas, S.Hadjiefthymiades, "Reasoning about Situation Similarity", In the proceedings of the 3rd IEEE Conference On Intelligent Systems (IEEE-IS`06) , Westminster, London, UK, September, 2006.

  11. O. Sekkas, S. Hadjiefthymiades and E. Zervas, "Enhancing location estimation through data fusion", IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’06), 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. A. Salkintzis, N. Passas, and D. Skyrianoglou, "Seamless Voice Call Continuity in 3G and WLANs", 9th International Symposium on Wireless Personal Multimedia Communications (WPMC), San Diego, CA, September 2006.

  14. 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.

  15. 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.

  16. V. Tsetsos, C. Anagnostopoulos, S. Hadjiefthymiades, "On the evaluation of Semantic Web Service matchmaking systems", 4th IEEE European Conference on Web Services (ECOWS), Zurich, Switzerland, December, 2006.

  17. D.-K. Triantafyllopoulou, N. Passas, and A. Kaloxylos, "A Cross-Layer Optimization Mechanism for Multimedia Traffic over IEEE 802.16 Networks", Proc. 13th European Wireless 2007, Paris, France, April 2007.

  18. M. Athanassoulis, I. Alagiannis and S. Hadjiefthymiades, "Energy Efficiency in Wireless Sensor Networks: A Utility-Based Architecture", European Wireless 2007, Paris, France, April, 2007.

  19. S. Paulakis, V. Tsetsos , S. Hadjiefthymiades, "Enterprise Job Scheduling for Clustered Environments", 10th IEEE International Symposium on Object and Component-Oriented Real-Time Computing (ISORC) , Santorini Island, Greece, May, 2007.

  20. C. Ntantogian, C. Xenakis, "A Security Binding for Efficient Authentication in 3G-WLAN Heterogeneous Networks", PhD poster presented in the 6th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2007), Corfu, Greece, June 2007.

  21. K. Zarifis, D. Ztoupis, C. Xenakis, "Security Issues in an Established Autonomous Wireless Network", PhD poster presented in the 6th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net 2007), Corfu, Greece, June 2007.

  22. C. Anagnostopoulos, P. Pasias, S. Hadjiefthymiades, "A Framework for Imprecise Context Reasoning ", IEEE International Conference on Pervasive Services, ICPS07, Istanbul, Turkey, July, 2007.

  23. T. Anagnostopoulos, C. Anagnostopoulos, S. Hadjiefthymiades, A. Kalousis, M. Kyriakakos , "Path Prediction through Data Mining ", IEEE Conference on Pervasive Services, ICPS07, Istanbul, Turkey, July, 2007.

  24. O. Sekkas, C. Anagnostopoulos, S. Hadjiefthymiades, "Context Fusion through Imprecise Reasoning", IEEE International Conference on Pervasive Services, ICPS2007, Istanbul, Turkey, July, 2007.

  25. S. Nathanail, V. Tsetsos, and S. Hadjiefthymiades, "Sensor-driven adaptation of web document presentation", HCI International, Beijing, P.R. China, July, 2007.

  26. C. Anagnostopoulos, S. Hadjiefthymiades, E. Zervas, "An Epidemiological Model for Semantics Dissemination", 3rd ACM International Mobile Multimedia Communications (MobiMedia2007) , Nafpaktos, Greece, August, 2007.

  27. Z.G. Papadimitriou, P.S. Bithas, P.T. Mathiopoulos, N.C.  Sagias, and L.  Merakos, "Triple-branch MRC diversity in Weibull fading channels ", Proc. IEEE International Workshop on Signal Design and Its Applications in Communications (IWSDA 2007), Sept. 2007.

  28. A. Papadimitriou, C. Anagnostopoulos, V. Tsetsos, S. Paskalis , S. Hadjiefthymiades, "A Semantics-aware Platform for Interactive TV Services", 1st International Conference on New Media Technology 2007 (I-MEDIA`07), Graz, Austria, September, 2007.

  29. 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.

  30. 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.

  31. 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.

  32. 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.

  33. C. Ntantogian, C. Xenakis, "Reducing Authentication Traffic in 3G-WLAN Integrated Networks", In Proc. 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, (PIMRC 2007), Athens, Greece, Sept 2007.

  34. C. Ntantogian, C. Xenakis, "A Security Protocol for Mutual Authentication and Mobile VPN Deployment in B3G Networks", In Proc. 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, (PIMRC 2007), Athens, Greece, Sept 2007.

  35. D. Triantafyllopoulou, N. Passas, A. Salkintzis and A. Kaloxylos, "A Heuristic Cross-Layer Mechanism for Real-Time Traffic in IEEE 802.16 Networks", Proc. 18th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2007, pp. 1-5, Athens, Greece, September 2007.

  36. E. Zervas, O. Sekkas, S. Hadjiefthymiades, C. Anagnostopoulos, "Fire Detection in the Urban Rural Interface through Fusion techniques", IEEE Workshop on Mobile Ad hoc and Sensor Systems for Global and Homeland Security (MASS-GHS 2007), Pisa, Italy, October, 2007.

  37. K. Kolomvatsos, V. Papataxiarhis, V. Tsetsos, "Semantic Location Based Services for Smart Spaces", 2nd International Conference on Metadata and Semantics Research (MTSR), Corfu, Greece, October, 2007.

  38. C. Anagnostopoulos, O. Sekkas, S. Hadjiefthymiades, "Context Fusion: Dealing with Sensor Reliability", IEEE International Workshop on Information Fusion and Dissemination in Wireless Sensor Networks (SensorFusion07 - MASS 2007), Pisa, Italy, October, 2007.

  39. 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.

  40. A.K. Salkintzis, N. Passas, and S. Xergias, "Performance Evaluation of Voice Call Transfer between UMTS and 802.16e", Design & Developers Forum, IEEE GLOBECOM 2007, Washington D.C., November 2007.

  41. C. Ntantogian, C. Xenakis, I. Stavrakakis, "Efficient Authentication for Users Autonomy in Next Generation All-IP Networks", In Proc. 2nd International Conference on Bio-Inspired Models of Network, Information, and Computing Systems (BIONETICS 2007), Budapest, Hungary, Dec 2007.

  42. P. Katsiouli, V. Tsetsos and S. Hadjiefthymiades, "Semantic video classification based on subtitles and domain terminologies", SAMT Workshop on Knowledge Acquisition from Multimedia Content (KAMC), Genova, Italy, December, 2007.

  43. G. Valkanas, V. Tsetsos, S. Hadjiefthymiades, "The POLYSEMA MPEG-7 Video Annotator", 2nd Int Conference on Semantic and Digital Media Technologies (SAMT), Genova, Italy, December, 2007.

  44. C. Ntantogian, C. Xenakis, I. Stavrakakis, "Reducing the User Authentication Cost in Next Generation Networks ", In Proc. 5th IEEE/IFIP Annual Conference on Wireless On demand Network Systems and Services (WONS 2008), Garmisch-Partenkirchen, Germany, Jan 2008.

  45. K. Kolomvatsos and S. Hadjiefthymiades, "Implicit Deadline Calculation for Seller Agent Bargaining in Information Marketplaces", 2nd International Conference on Complex, Intelligent and Software Intensive Systems (CISIS 2008), Barcelona, Spain, March, 2008.

  46. D. Triantafyllopoulou, N. Passas and A. Kaloxylos, "Cross-Layer Adaptation for Real-Time Broadband Multimedia over IEEE 802.16e Networks", Proc. IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2008, pp. 1-6, Las Vegas, NV USA, April 2008.

  47. 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.

  48. D. Triantafyllopoulou, N. Passas, G. Lampropoulos and A. Kaloxylos, "Joint Application and Physical Layer Adaptation for Improved Performance in Wireless Networks", Proc. 3rd IEEE International Symposium on Wireless and Pervasive Computing (ISWPC) 2008, pp. 256-260, Santorini, Greece, May 2008.

  49. D. Ztoupis, K. Zarifis, C. Xenakis, I. Stavrakakis "Towards a Security Framework for an Established Autonomous Network ", In Proc. IEEE International Symposium on Wireless Pervasive Computing, Santorini, Greece, May 2008

  50. S. Xergias, N. Passas, A. Lygizou, and A.K. Salkintzis, "A Multimedia Traffic Scheduler for IEEE 802.16 Point-to-Multipoint Networks", IEEE International Conference on Communications (ICC) 2008, Beijing, China, May 2008.

  51. 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).

  52. K. Kolomvatsos, C. Anagnostopoulos and S. Hadjiefthymiades, "On the Use of Fuzzy logic in a Seller Bargaining Game", 32nd Annual IEEE International Computer Software and Applications Conference (COMPSAC 2008), Turku, Finland, July, 2008.

  53. 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.

  54. V. Baousis, K. Tzannetakos, E. Zavitsanos, V. Spiliopoulos, S. Hadjiefthymiades, "A Case Based Reasoning framework for service selection and adaptation in mobile networks", Pervasive Adaptation (PERADA) Workshop, 2nd IEEE International Conference on Self-Adaptive and Self-Organizing Systems, Venice, Italy, October, 2008.

  55. V.Papataxiarhis, V.Riga, V. Nomikos, O.Sekkas, K.Kolomvatsos, V.Tsetsos, P. Papageorgas, S.Vourakis, S.Hadjiefthymiades, and G. Kouroupetroglou , "MNISIKLIS: Indoor LBS for All", 5th International Symposium on LBS & TeleCartography (LBS 2008), Salzburg, Austria, November, 2008.

  56. K. Kolomvatsos and S. Hadjiefthymiades, "Automatic Fuzzy Rules Generation for the Deadline Calculation of a Seller Agent", International Symposium on Autonomic and Decentralized Systems (ISADS), Athens, March, 2009.

  57. C. Panayiotou, E. Fytros, V. Tsetsos, G. Samaras, S. Hadjiefthymiades, D. Piquet, "Integrated Platform for Autonomic Computing", poster paper published at IEEE SECON, Rome, Italy, June, 2009.

  58. V. Tsetsos, S. Hadjiefthymiades, "An Innovative Architecture for Context Foraging", 8th International ACM Workshop on Data Engineering for Wireless and Mobile Access (MobIDE), Providence, Rhode Island, USA, June, 2009.

  59. D. Triantafyllopoulou, N. Passas and A. Kaloxylos, "Integration of Handover in a Cross-Layer Mechanism for Mobile Multimedia Systems", Proc.  IEEE International Conference on Communications (ICC) 2009, pp. 1-5, Dresden, Germany, June 2009.

  60. M. Poulakis, V. Vassaki, and S. Hadjiefthymiades, "Proactive Radio Resource Management Using Optimal Stopping Theory", to be presented in WoWMoM 2009, 10th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, Kos Island, Greece, June, 2009.

  61. T. Anagnostopoulos, C. Anagnostopoulos, S. Hadjiefthymiades, M. Kyriakakos, A. Kalousis, "Predicting the location of mobile users: a machine learning approach", ACM International Conference on Pervasive Services (ICPS09), Imperial College, London, UK., July, 2009.

  62. M. Spanoudakis and S. Hadjiefthymiades, "Adaptive Partial CDN Replication", ISCC09, 14th IEEE Symposium on Computers and Communications, Sousse, Tunisia, July, 2009.

  63. T. Anagnostopoulos, C. Anagnostopoulos, S. Hadjiefthymiades, "An Online Adaptive Model for Location Prediction ", (3rd Conf.) ICST Autonomics 2009, Limassol, Cyprus, September, 2009.

  64. O. Sekkas, D. Piguet, C. Anagnostopoulos, D. Kotsakos, G. Alyfantis, C. Kassapoglou-Faist and S. Hadjiethymiades, "Probabilistic Information Dissemination for MANETs: the IPAC Approach", 20th Tyrrhenian International Workshop on Digital Communications, Pula, Sardinia, Italy, September, 2009.

  65. V. Papataxiarhis, V. Tsetsos, I. Karali, P. Stamatopoulos and S. Hadjiefthymiades, "i-footman: A Knowledge-Based Framework for Football Managers", 3rd East European Workshop on Rule-Based Applications (RuleApps), Cottbus, Germany , September, 2009. 

  66. A. Kaloxylos, F. Georgiadis, I. Modeas, N. Passas , "Design and Implementation of a Radio Access Selection Algorithm for Multi-mode Mobile Terminals", First International ICST Conference on Mobile Networks and Management (MONAMI 2009), Athens, Greece, October 2009.

  67. Q.Bai, N.Passas and J.Nossek, "Scheduling and resource allocation on OFDM and FBMC systems: an interactive approach and performance comparison", European Wireless 2010, Lucca, Italy, April 2010.

  68. D. Xenakis, D. Tsolkas, N. Passas, and L. Merakos, "Dynamic resource allocation in adaptive multiuser multicarrier systems", European Wireless 2010, Lucca, Italy, April 2010.

  69. A. Merentitis, and D. Triantafyllopoulou, "Transmission Power Regulation in Cooperative Cognitive Radio Systems Under Uncertainties", Proc. IEEE International Symposium on Wireless and Pervasive Computing (ISWPC) 2010, Modena, Italy, May 2010.

  70. D. Triantafyllopoulou, N. Passas, E. Zervas, and L. Merakos, "Optimized Cross-Layer Adaptation for Improved Resource Management in Wireless Networks", Proc. 8th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) 2010, 6th Workshop on Resource Allocation in Wireless Networks (RAWNET) 2010, Avignon, France, June 2010.

  71. A. Lygizou, and N. Passas, "MF-TDMA slot allocation in Joint WiMAX / Satellite Networks", The 6th ACM International Wireless Communications and Mobile Computing Conference (IWCMC 2010), Caen, France, June 2010.

  72. M. Michalopoulos, C. Anagnostopoulos, C. Doukas, I. Maglogiannis, S. Hadjiefthymiades, "Optimizing Pervasive Sensor Data Acquisition utilizing Missing Values Substitution", 3rd International Conference on PErvasive Technologies Related to Assistive Environments, PETRA2010, Island of Samos, Greece, June, 2010

  73. C. Anagnostopoulos, T. Anagnostopoulos, S. Hadjiefthymiades, "An Adaptive Data Forwarding Scheme for Energy Efficiency in Wireless Sensor Networks", IEEE Conference on Intelligent Systems, (IS2010), London UK., July, 2010

  74. G. Boulougaris, K. Kolomvatsos, S. Hadjiefthymiades, "Building the Knowledge Base of a Buyer Agent Using Reinforcement Learning Techniques", 2010 IEEE World Congress on Computational Intelligence (WCCI) - International Joint Conference on Neural Networks (IJCNN), Barcelona - Spain, July, 2010.

  75. V. Papataxiarhis, V. Tsetsos, S. Hadjiefthymiades, "A Knowledge Plane for Context-Aware Applications in Autonomic Computing", Proceedings of the 7th ACM International Conference on Pervasive Services (ICPS 2010), Berlin, Germany, July, 2010.

  76. R. Arapoglou, K. Kolomvatsos, S. Hadjiefthymiades, "Buyer Agent Decision Process Based on Automatic Fuzzy Rules Generation Methods", 2010 IEEE World Congress on Computational Intelligence (WCCI) - International Conference on Fuzzy Systems (FUZZ-IEEE), Barcelona - Spain, July, 2010

  77. 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.

  78. 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.