Presentations

2014

  • V.G. Douros, S. Toumpis and G.C. Polyzos, "On the Nash Equilibria of Graphical Games for Channel Access in Multihop Wireless Networks," Proc. Wireless Evolution Beyond 2020 Workshop, in conjunction with IEEE Wireless Communications and Networking Conference (WCNC), Istanbul, Turkey, April 2014. [PPTx]
  • G.C. Polyzos, "Mobile Multimedia Laboratory: Research Overview," Presentation at AUEB Research Day, Athens, March 2014. [PDF]
  • N. Fotiou, "Access Control in Data: New Challenges and Solutions," Presentation at AUEB Research Day, Athens, March 2014. [PPTx]
  • X. Vasilakos, "Mobility and Caching in Information Centric Networking," Presentation at AUEB Research Day, Athens, March 2014. [PPTx]
  • V.G. Douros, "Applications of Game Theory for Radio Resource Management in Wireless Networks," Presentation at AUEB Research Day, Athens, March 2014. [PPTx]

2013

  • C. Tsilopoulos, G. Xylomenos and G.C. Polyzos, "Are Information-Centric Networks Video-Ready?," Proc. Packet Video Workshop, San Jose, CA, USA, December 2013. [PPTx]
  • G. Xylomenos, C. Tsilopoulos, Y. Thomas, G.C. Polyzos, "Reduced Switching Delay for Networked Music Performance," Proc. Packet Video Workshop, San Jose, CA, USA, December 2013. [PDF-POSTER]
  • C. Tsilopoulos and G. Xylomenos, "Scaling Bloom filter-based Multicast via Filter Switching," Proc. IEEE ISCC, Split, Croatia, July, 2013. [PDF]
  • C. Stais, A. Voulimeneas and G. Xylomenos, "Towards an Error Control Scheme for a Publish/Subscribe Network," Proc. IEEE ICC NGN Symposium, Budapest, Hungary, June 2013. [PDF]
  • C. Stais, Y. Thomas, G. Xylomenos and C. Tsilopoulos, "Networked Music Performance over Information-Centric Networks," Proc. IEEE ICC IIMC Workshop, Budapest, Hungary, June 2013. [PDF]
  • V.G. Douros, "Applications of Game Theory for Power Control in Wireless Networks of Autonomous Entities," Presentation at Research Day on National Project "Heracleitus II", Athens University of Economics and Business (AUEB), April 2013. [PPTx]
  • V.G. Douros, "Incentives Based Power Control in Wireless Networks of Autonomous Entities with Various Degrees of Cooperation," Poster presented at Research Day on National Project "Heracleitus II", Athens University of Economics and Business (AUEB), April 2013. [PDF]
  • N. Fotiou and G. Xylomenos, "Privacy in ICN," ICNRG interim meeting, Kista, Stockholm, Sweden, February 2013. [PPT]
  • C. Tsilopoulos, X. Vasilakos and G. Xylomenos, "Scalability Issues in ICN," ICNRG interim meeting, Kista, Stockholm, Sweden, February 2013. [PDF]

2012

  • V.A. Siris, "Mobility Support in Information Centric Networking (ICN)," Wireless Days 2012, Dublin, Ireland, November 2012. Invited Speaker [PDF]
  • G.C. Polyzos, "The Publish-Subscribe Internet Architecture," IEEE Computer Communications Workshop, Sedona, Arizona, USA, November 2012. [PDF]
  • G.C. Polyzos, "Information-Centric Networking & the Ψ Architecture," at UCSD Systems and Networks group meeting, San Diego, CA, USA, October 2012. [PDF]
  • G. Xylomenos, "ICN Evaluation: Why and How?," Dagstuhl Seminar on Information Centric Networking, Dagstuhl-Wadern, Germany, September 2012. [PDF]
  • G.C. Polyzos, "Global Rendezvous Scale Issues for an Information-Centric Future Internet," Proc. Workshop on COmputational Modeling of BIg NEtworks (COMBINE), Washington DC, USA, September 2012. [PDF]
  • V.A. Siris and D. Kalyvas, "Enhancing Mobile Data Offloading with Mobility Prediction and Prefetching," Proc. ACM MOBICOM Workshop on Mobility in the Evolving Internet Architecture (MobiArch 2012), Istanbul, Turkey, August 2012. [PDF]
  • N. Fotiou, G.F. Marias and G.C Polyzos, "Access Control Enforcement Delegation for Information-Centric Networking Architectures," Proc. ACM ICN'12 workshop, in conjuction with SIGCOMM, Helsinki, Finland, August 2012. Best Paper Award [PPTX]
  • X. Vasilakos, V.A. Siris, G.C. Polyzos and M. Pomonis, "Proactive Selective Neighbor Caching for Enhancing Mobility Support in Information-Centric Networks," Proc. ACM ICN'12 workshop, in conjuction with SIGCOMM, Helsinki, Finland, August 2012. [PPT]
  • C. Stais and G. Xylomenos, "Realistic Media Streaming over BitTorrent," Proc. Future Network and Mobile Summit 2012, Berlin, Germany, July 2012. [PPT]
  • G.F. Marias, N. Fotiou and G.C. Polyzos, "Efficient information lookup for the Internet of Things," Proc.  First IEEE WoWMoM Workshop on the Internet of Things: Smart Objects and Services,  San Francisco, CA, USA, June 2012. [PPTx]
  • K. Katsaros, N. Fotiou, X. Vasilakos, C. Ververidis, C. Tsilopoulos, G. Xylomenos and G.C. Polyzos, "On Inter-domain Name Resolution for Information-Centric Networks," Proc. IFIP Networking 2012, Prague, Czech Republic, May 2012. [PPT]
  • V.G. Douros, S. Toumpis and G.C. Polyzos, "Power Control Under Best Response Dynamics for Interference Mitigation in a Two-Tier Femtocell Network," Proc. 8th International Workshop on Resource Allocation and Cooperation in Wireless Networks (RAWNET), Paderborn, Germany, May 2012. [PPT]
  • K. Katsaros, G. Xylomenos and G.C. Polyzos, "GlobeTraff: a traffic workload generator for the performance evaluation of future Internet architectures,"  Proc. Fifth IFIP International Conference on New Technologies, Multimedia and Security (NTMS), Istanbul, Turkey, May 2012. [PPT]
  • N. Fotiou, G.F. Marias and G.C. Polyzos,"Fighting phishing the information-centric way," Proc. Fifth IFIP International Conference on New Technologies, Mobility and Security (NTMS), Istanbul, Turkey, May 2012. [PDF]
  • P.A. Frangoudis, "User-centrism in wireless networking," Ph.D. Thesis Defense, AUEB, April 2012. [PDF]
  • N. Fotiou, G.F. Marias, G.C. Polyzos, P. Szalachowski, Z. Kotulski, M. Niedermeier, X. He and H. de Meer, "Towards Adaptable Security for Energy Efficiency in Wireless Sensor Networks," Proc. 28th World Wireless Research Forum (WWRF28), Athens, Greece, April 2012. [PDF]
  • X. Vasilakos, V.A. Siris and G.C. Polyzos, "Towards Exploiting User-Centric Information for Proactive Caching in Mobile Networks," Proc. 28th World Wireless Research Forum (WWRF28), Athens, Greece, April 2012. [PPTx]

2011

  • G.C. Polyzos, "Context-Aware Information Delivery in Assistive Environments over a Publish-Subscribe Internet," Proc. 1st International Conference on Wireless Technologies for Humanitarian Relief, Kerala, India, December 2011. Invited Speaker [PDF]
  • D. Trossen, X. Vasilakos, P. Flegkas, V. Sourlas and G. A. Parisis, "Mobility Work Re-Visited Not Considered Harmful," Proc. 3rd IEEE Workshop on Mobile Computing and Networking Technologies (WMCNT 2011)-in conjunction with the IEEE International Congress on Ultra Modern Telecommunications and Control Systems (ICUMT), Budapest, Hungary, October 2011. [ZIP]
  • G. Xylomenos, "Mobility in a Publish Subscribe Internetwork," PURSUIT Summer School, Cambridge, UK, August 2011. [PPT]
  • V. Giannaki, X. Vasilakos, C. Stais, G. Xylomenos and G.C. Polyzos, "Supporting Mobility in a Publish Subscribe Internetwork Architecture," Proc. IEEE Symposium on Computers and Communications (ISCC), Corfu, Greece, June-July 2011. [PDF]
  • C. Stais, G. Xylomenos and A. Archodovassilis, "A comparison of streaming extensions to BitTorrent," Proc. IEEE Symposium on Computers and Communications (ISCC), Corfu, Greece, June-July 2011. [PDF]
  • G.C. Polyzos, P.A. Frangoudis, G.F. Marias, S. Arkoulis, M. Fiedler, A. Popescu, H. de Meer, R. Herkenhöner, A. Fischer, J. Oberender, "ASPECTS: Agile Spectrum Security," Proc. Conference on Next Generation Internet (NGI 2011), Kaiserslautern, Germany, June 2011. [PDF]
  • V.G. Douros, G.C. Polyzos and S. Toumpis, "Negotiation-Based Distributed Power Control in Wireless Networks with Autonomous Nodes," Proc. 73rd IEEE Vehicular Technology Conference (VTC2011-Spring), Budapest, Hungary, May 2011. [PPT]
  • G.C. Polyzos, "Information-Centric Networking & the Ψ Architecture," Euro-NF International Workshop on Traffic and Congestion Control for the Future Internet, Volos, Greece, April 2011. Invited Speaker [PDF]
  • V.G. Douros and G.C. Polyzos, "Utility-based power control for interference mitigation in a mixed femtocell-macrocell environment," Proc. 26th Wireless World Research Forum (WWRF26), Doha, Qatar, April 2011. [PPT]
  • X. Vasilakos and V. Giannaki, "Supporting Mobility in a Pub/Sub Architecture," Pursuit Plenary Meeting, Cambridge, UK, February 2011. [PDF]
  • X. Vasilakos and C. Tsilopoulos, "Publish/Subscribe Rendezvous Network," Pursuit Plenary Meeting, Cambridge, UK, February 2011. [PDF]

2010

  • G. Xylomenos, "Publish/Subscribe Internetworking: From PSIRP to PURSUIT", Dagstuhl Seminar on Information Centric Networking, Dagstuhl-Wadern, Germany, December 2010. [PDF]
  • N. Fotiou, P. Nikander, D. Trossen and G. C. Polyzos, "Developing Information Networking Further: From PSIRP to PURSUIT," Proc. 7th International ICST Conference on Broadband Communications, Networks, and Systems (Broadnets), Athens, Greece, October 2010. [PDF]
  • V.G. Douros, G.C. Polyzos and S. Toumpis, "A Bargaining Approach to Power Control in Networks of Autonomous Wireless Entities," Proc. 8th ACM International Symposium on Mobility Management and Wireless Access (MobiWAC), Bodrum, Turkey, October 2010. [PPT]
  • N. Fotiou, G.F. Marias and G.C. Polyzos "Towards a Secure Rendezvous Network for Future Publish/Subscribe Architectures," Proc. 3rd Future Internet Symposium (FIS2010), Berlin, Germany, September 2010. [PDF]
  • G. Xylomenos and B. Cici "Design and Evaluation of a Socket Emulator for Publish/Subscribe Networks," Proc. 3rd Future Internet Symposium (FIS2010), Berlin, Germany, September 2010. [PDF]
  • X.S. Vasilakos, J. Sacha and G. Pierre, "Decentralized As-Soon-As-Possible Grid Scheduling: a Feasibility Study," Proc. 2nd IEEE Workshop on Grid and P2P Systems and Applications (GridPeer)-in association with ICCCN2010, Zurich, Switzerland, August 2010. [ZIP]
  • K. Katsaros, "An Information-Centric Overlay Network Architecture for Content Distribution and Mobility Support," Ph.D. Thesis Defense,  AUEB, July 2010. [PDF]
  • G. Xylomenos and B. Cici. "Socket Emulation over a Publish/Subscribe Network Architecture," Proc. Future Network and Mobile Summit 2010, Florence, Italy, June 2010. [PPT]
  • N. Fotiou, G.F. Marias and G.C. Polyzos, "Fighting Spam in Publish/Subscribe Networks Using Information Ranking," Proc. 6th Euro-NF Conference on Next Generation Internet (NGI), Paris, France, June 2010. [PDF]
  • K.V. Katsaros, G. Xylomenos and G.C. Polyzos, "MultiCache: an Incrementally Deployable Overlay Architecture for Information-Centric Networking," Proc. IEEE INFOCOM 2010-Work in Progress (WiP), San Diego, CA, USA, March 2010. [PDF]
  • K.V. Katsaros, G. Xylomenos and G.C. Polyzos, "A Hybrid Overlay Multicast and Caching Scheme for Information-Centric Networking," Proc. 13th IEEE Global Internet Symposium, co-located with IEEE INFOCOM 2010, San Diego, CA, USA, March 2010. [PDF]

2009

  • G.C. Polyzos, "User-Provided and Community Networks as μ-operators in Cognitive Dynamic Spectrum Access," Wireless World Research Forum, Meeting 23, Beijing, China, October 2009. Invited Speaker [ABSTRACT] [PDF]
  • K. Katsaros, V.P. Kemerlis, C. Stais and G. Xylomenos, "A BitTorrent Module for the OMNeT++ Simulator," Proc. 17th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), London, UK, September 2009, pp. 361-370. [PPT]
  • G.C. Polyzos, "μ-Operators, User-Provided, Community, and Cognitive Networks in Open Spectrum Access," The 18th International Conference on Computer Communications and Networks (ICCCN 2009), San Francisco, CA, August 2009. Distinguished Invited Speaker [ABSTRACT] [PDF]
  • V.G. Douros, "Incentive Based Power Control in Wireless Networks of Autonomous Entities with Various Degrees of Cooperation," Future Internet Summer School (FISS 09), Bremen, Germany, July 2009. [PDF] (poster)
  • N. Fotiou, "Reliable Internetworking using the Pub/ Sub Paradigm," Future Internet Summer School (FISS 09), Bremen, Germany, July 2009. [PPT] (poster)
  • K. Katsaros, N. Bartsotas and G. Xylomenos, "Router assisted overlay multicast," 5th Euro-NGI Conference on Next Generation Internet Networks (NGI 2009), Aveiro, Portugal, July 2009. [PDF]
  • F. Elianos, G. Plakia, P.A. Frangoudis and G.C. Polyzos, "Structure and Evolution of a Large-Scale Wireless Community Network," Proc. IEEE WoWMoM 2009, Kos, Greece, June 2009. [PDF]
  • K. Katsaros, N. Fotiou, G.C. Polyzos and G. Xylomenos, "Overlay Multicast Assisted Mobility for Future Publish/Subscribe Networks," Proc. ICT Mobile Summit, Santander, Spain, June 2009. [PDF]
  • G.C. Polyzos, B. Jerman-Blajic, D. Trossen, D. Kennedy, S. Hailes, P. Mahonen, D. Papadimitriou, "The Eiffel approach towards Visions for a Future Networked Society," Proc. ICT Mobile Summit, Santander, Spain, June 2009. [PDF]
  • N. Fotiou, G.C. Polyzos and D. Trossen, "Illustrating a Publish-Subscribe Internet Architecture," Proc. 2nd Euro-NF Workshop on Future Internet Architectures: New Trends in Service Architectures (co-located with ICT Mobile Summit), Santander, Spain, June 2009. [PPT] (presenter: K. Katsaros)
  • K. Katsaros, N. Fotiou, G.C. Polyzos and G. Xylomenos, "Supporting Mobile Streaming Services in Future Publish/Subscribe Networks," Proc. Wireless Telecommunications Symposium (WTS 2009), Prague, Czech Republic, April 2009. [PDF]
  • G.C. Polyzos, "ARCHANGEL: An Architecture for Ubiquitous, Intelligent, Transparent Activities Monitoring for Active Ageing and Independent Living through the Early Detection of Signs of Medical Problems," Microsoft External Research Symposium, Redmond, WA, March 2009 (poster). [PDF]

2008

  • S. Arkoulis, P. Frangoudis, G. Marias, G.C. Polyzos, M. Fiedler, R. Herkenhφner and H. de Meer, "Distributed Sensing for Spectrum Agility: Incentives and Security Considerations," Proc. 1st Euro-NF Workshop: Future Internet Architecture-New Trends in Service and Networking Architectures, Paris, France, Nov. 2008. [PDF - 87 KB] (presenter: G. Xylomenos)
  • G. Xylomenos, K. Katsaros and V.P. Kemerlis, "Peer Assisted Content Distribution over Router Assisted Overlay Multicast," Proc. 1st Euro-NF Workshop: Future Internet Architecture - New Trends in Service and Networking Architectures, Paris, France, Nov. 2008. [PDF - 90 KB]
  • G.C.Polyzos, presentation made at the panel on "Building the Internet of the Future The Wireless Challenge", Proc. IEEE PIMRC 2008, Cannes, France, September 2008. [PDF - 1 MB]
  • K.V.Katsaros, P.A. Frangoudis, G.C. Polyzos and G. Karlsson, "Design Challenges of an Open Spectrum Access Scheme," Proc. IEEE PIMRC 2008, Cognitive Radio and Networks Workshop (CRNETS 2008), Cannes, France, September 2008. [PDF - 299 KB]
  • P.A. Frangoudis and G.C. Polyzos, "Coupling QoS Provision with Interference Reporting in WLAN Sharing Communities," Proc. IEEE PIMRC 2008, Social and Mesh Networking Workshop, Cannes, France, September 2008. [PDF - 1.92 MB]
  • L. Kazatzopoulos, K. Delakouridis and G. Marias,"Providing Anonymity Services in SIP," Proc. IEEE PIMRC 2008, VoIP Technology: Research and Standards for reliable applications Workshop, Cannes, France, September 2008. [PDF - 357 KB] (presenter: G.C. Polyzos)
  • G.C. Polyzos, "Past, present and future of Wireless Communities. Is rivaling cellular in their future?," presented at the panel on "Ubiquitous Community Wireless Networks: Reality or pipedream? Opportunities, challenges, pitfalls" , 16th IEEE LAN/MAN Workshop (LANMAN 2008), Cluj-Napoca, Romania, September 2008. [PDF - 1.56 MB]
  • G.C. Polyzos, "Optimizing the Channel Load Reporting Process in IEEE 802.11k-enabled WLAN," LANMAN paper, September 2008. [PDF - 220KB]
  • V.G. Douros, K. Katsaros, P.A. Frangoudis and G.C. Polyzos, "Power Control in WLANs for Optimization of Social Fairness," Proc. 12th Pan-Hellenic Conference on Informatics (PCI'08), Samos, Greece, August 2008. [PPT - 147 KB]
  • V.G. Douros and G.C. Polyzos, "Power Control in WLANs for Social Fairness Optimization," Proc. 2nd Pan-Hellenic Conference of Students of Electrical and Computer Engineering (SFHMMY 2008), Athens, Greece, April 2008 (poster). [PDF - 685 KB]
  • G.J. Papamatthaiakis, E.C. Efstathiou, G.C. Polyzos and G. Xylomenos, "Monitoring and Modeling the Every-Day Behavior of People with Special Needs," Proc. 4th IEEE International Conference on Distributed Computing in Sensor Systems (DCOSS '08) Santorini, Greece, June 2008 (poster). [PPT - 1.28MB]

 

2006

  • E.C. Efstathiou, "A Peer-to-Peer Approach to Sharing Wireless Local Area Networks," PhD dissertation presentation, Athens, Greece, June 2006) [PDF - 1.71 MB]
  • E.C. Efstathiou, "Building Secure Media Applications over Wireless Community Networks," HP-OVUA paper, May 2006 [PPT - 820KB]
  • E.C. Efstathiou, "Stimulating Participation in Wireless Community Networks," INFOCOM paper, April 2006. [PPT - 493KB]

 

2005

  • C. Ververidis, "Extended ZRP:Performance Evaluation of a Routing Layer Based Service Discovery Protocol for Mobile Ad Hoc Networks", MobiQuitous paper, July 2005, San Diego, California. [PDF - 207KB]
  • C. Ververidis, "Impact of Node Mobility and Network Density on Service Availability in MANETs", poster presented at the 14th IST Mobile & Wireless Communications Summit 2005, June 2005, Dresden, Germany. [PDF-poster - 212KB]
  • C. Ververidis, "Routing Layer Support for Service Discovery in Mobile Ad Hoc Networks", presented at the 1st International Workshop on Pervasive Wireless Networking Workshop (PWN' 05) in conjunction with the Third IEEE International Conference on Pervasive Computing and Communications, PerCom 2005, March 2005, Kauai Island, Hawaii. [PDF - 119KB]

2004

  • E.C. Efstathiou, "Trustworthy Accounting for Wireless LAN Sharing Communities," EuroPKI 2004 paper, June 2004. [PPT - 220KB]
  • E.C. Efstathiou, "Using Flexible Wireless Networks," (in Greek), E-Business Forum Meeting, Athens, May 3, 2004. [PPT - 590KB]
  • E.C. Efstathiou, "Peer-to-Peer Wireless Network Confederation," Engineering Report, April 2004. [ZIP PPT - 419KB]
  • A. Kousaridas, "Athens Wireless Metropolitan Network," (in Greek), Wireless Networks and Mobile Communications Course Project, Feb. 2004. [ZIP PPT - 3.194KB]
  • K. Saninas, "Private and Anonymous User Authentication in Mobile Networks," (in Greek), MSc Thesis Presentation, Feb. 2004. [PPT - 2.314KB]

 

2003

  • E.C. Efstathiou, "Decentralized Authentication in a P2P WLAN Confederation," MMLAB Group Meeting, Dec. 2003. [zipped PPT - 28KB]
  • G.C. Polyzos, "Networking Research: Problems, Results, Techniques and Tools," AUEB-CS MSc Research Seminar, 27 Nov. 2003. [PDF - 2,848KB]
  • G. Xylomenos, "Wireless Communications and Internet: Architectures and Protocols," AUEB-CS MSc Research Seminar, 20 Nov. 2003. [PDF - 185KB]
  • E.C. Efstathiou, "Designing a Peer-to-Peer Wireless Network Confederation," IEEE WLN 2003 Poster, Oct. 2003. [PPT - 96KB]
  • S. Valavanis, C. Ververidis, C. Doulkeridis, M. Vazirgiannis, and G.C. Polyzos, "DBGlobe: Simulator Prototype," Engineering Report, 2003. [PDF - 528KB]
  • G.C. Polyzos, "A Peer-to-Peer Approach to Wireless LAN Roaming," ACM WMASH 2003 Paper, Sept. 2003. [PPT - 255KB]
  • E.C. Efstathiou, "Peer-to-Peer Wireless Network Confederation," MMAPPS Athens Meeting, Sept. 2003. [PPT - 336KB]
  • S. Soursos, "Context-aware Resource Management for Mobile Servers," HPOVUA 2003 Paper, July 2003. [PPT - 427KB]
  • E.C. Efstathiou, "The Case for Peer-to-Peer Wireless LAN Consortia," IST Mobile and Wireless Communications Summit 2003 Presentation, June 2003. [PPT - 92KB]
  • E.C. Efstathiou, "P2P Security - Case Study: COCA (Cornell Online Certification Authority)," MMLAB Group Meeting, April 4, 2003. [PPT - 111KB]
  • A. Malatras, "IEEE 802.11 WLAN Security," (in Greek), MSc Thesis Presentation, Feb. 2003. [PPT - 155KB]
  • C. Karatzas, "A Simulation Study of P2P Network Participation Rules," (in Greek), MSc Thesis Presentation, Feb. 2003. [zipped PDF - 348KB]

 

2002

  • E.C. Efstathiou, "Peer WLAN Consortium: A P2P Case Study," MMAPPS Athens Meeting, Sept. 2002. [PPT - 64KB]
  • E.C. Efstathiou, "Siptrex: Scalable IP Centrex," HPOVUA 2002 Videoconference - Special Interest Discussion, July 2002. [PPT - 50KB]
  • G.C. Polyzos, "Multipoint Communications in a Beyond-3G Internetwork," WWIC 2002 Paper, June 2002. [PPT - 179KB]
  • G.C. Polyzos, "Supporting Quality of Service in the Wireless Internet," IST Mobile Venue 2002, Athens, May 30-31, 2002.  [PDF - 600KB]
  • C. Ververidis, "Locations Based Services (LBS) and Implementation of an Innovative LBS Service Applicable to the Mobile Marketing Industry Sector," (in Greek), MSc Thesis Presentation, Feb. 20, 2002. [zipped PPT - 253KB]
  • M. Papaioannou, "Object Based Representation and Transformation of Multimedia Streams Using XML Technologies," (in Greek), MSc Thesis Presentation, Feb. 20, 2002. [zipped PDF - 330KB]

 

2001

  • S. Soursos, "Enhancing the GPRS Environment with Differentiated Services and Applying Congestion Pricing," 2001 Ericsson Awards Ceremony, 2001. [PDF - 224KB]
    S. Soursos, "Adapting and Charging Differentiated Internet Serviced in the GPRS Environment," (in Greek), MSc Thesis Presentation, Feb. 2001. [PDF - 392KB]
    G.C. Polyzos, "QoS Issues in Multi-Service Wireless Internet Links," IW-QoS-IP Presentation, Jan. 26, 2001. [PPT - 38KB]