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Publications

 

Books and Book Chapters

2014

Tasos Dagiuklas, Ahmet Kondoz, (Eds):  Novel 3D Media, Springer

2013

Chang Wen Chen, Periklis Chatzimisios, Tasos Dagiuklas, Luigi Atzori (Eds), Multimedia Quality of Experience (QoE): Current Status and Future Requirements, John Wiley & Sons (to be published at the Winter 2013)

Athanasios Demiris: "Merging the real and the synthetic in augmented 3D worlds", in: Ahmet Kondoz and Tasos Dagiuklas (Eds.) "3D Future Internet Media", in print, Springer Verlag USA

Tasos Dagiuklas, Ahmet Kondoz, (Eds):  3D Future Internet Media, Springer

2011

Christos Tselios, Konstantinos Birkos, Christos Papageorgiou, Tasos Dagiuklas and Stavros Kotsopoulos, P2PSIP Architectures, Components and Security Analysis, A. Prassad in Advances in Next Generation Services and Service Architectures, River Publishers, 2011

2006

Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, Qualitative Analysis of different interworking scenarios between 3G and WLAN, Encyclopedia on Wireless and Mobile Computing, February 2006

Ilias Politis, Tasos Dagiuklas, Michael Tsagkaropoulos and Stavros Kotsopoulos, Provisioning of Multimedia Applications across Heterogeneous All-IP Networks, Encyclopedia on Mobile Computing and Commerce, April 2006

2005

Klaus Mossner, Rahim Tafazolli, Christos Politis, Tasos Dagiuklas, Cooperation between Networks, R. Tafazolli (Eds): Technologies for the Wireless Future, John Wiley & Sons, January 2005 (ISBN: 0 470 01235 8)

Journal Papers

2016

Ilias Politis, Asimakis Lykourgiotis, Tasos Dagiuklas, "A framework for QoE aware 3D video streaming optimisation over wireless networks" has been accepted for Publication at Mobile Information Systems

2015

Athanasios Kordelas, Ilias Politis and Tasos Dagiuklas , "Transpoprt Analysis and Quality Evaluation of MVC videon streaming", It has been accepted for publication at Springer Multimedia Tools and Applications Journal, February 2015.

2014

Asimakis Lykourgiotis, Konstantinos Birkos, Tasos Daqiuklas, Erhan Ekmekcioglu, Safak Dogan, Yasin Yildiz, Politis, Ilias, Orkun Tanik,Burak Demirtas, Ahmet M. Kondoz, Stavros Kotsopoulos, "Hybrid Broadcast and Broadband Networks Convergence for Immersive TV Applications", IEEE Wireless Communications 2014, June  2014

2013

Tasos Dagiuklas, Ilias Politis, "Multimedia optimization over mobile clouds", IEEE MMTC E-Letter (Invited), November 2013

Saghezchi, Firooz, Huq, Kazi Mohammed Saidul, Ayman Radwan, Jonathan Rodriguez, Tasos Dagiuklas, "Coalition Formation Game Towards Green Mobile Terminals in Heterogeneous Wireless Networks", IEEE Wireless Communications Magazine, October 2013

Calliope-Louisa Sotiropoulou, Liberis Voudouris, Christos Gentsos, Athanasios Demiris, Nikolaos Vassiliadis and Spyridon Nikolaidis: "Real-Time Machine Vision FPGA Implementation for Microfluidic Monitoring on Lab-on-Chips",  IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), acc. April 2013

2012

Christos Tselios, Christos Papageorgiou, Konstantinos Birkos, Ilias Politis, and Tasos Dagiuklas, “Real-Time Communications in Autonomic Networks: System Implementation and Performance Evaluation”, Journal of Computer Networks and Communications, 2012

Christos Papageorgiou, Konstantinos Birkos, Tasos Dagiuklas and Stavros Kotsopoulos, "Modeling human mobility in obstacle-constrained ad hoc networks ", Elsevier Ad-hoc Networks, May 2012

Ilias Politis, Lambros Dounis and Tasos Dagiuklas, H.264/SVC vs. H.264/AVC Video Quality Comparison under QoE-Driven Seamless Handoff, EURASIP Signal Processing: Image Communication Journal, February 2012

Tasos Dagiuklas, 3D Media over Future Internet: Current Status and Future Research Directions, IJCSI International Journal of Computer Science Issues, January 2012

2011

Dionisis Kandris, Michael Tsagkaropoulos, Ilias Politis, Antonis Tzes and Stavros Kotsopoulos, Energy efficient and perceived QoS aware video routing over wireless multimedia sensor networks, Springer Ad-Hoc Journal, June 2011

M. Jung, J. Hoth, J. Erwes, D. Latta, X. Strobach, T. Hansen-Hagge, R. Klemm, C. Gartner, T. M. Demiris, C. O'Sullivan, M. Ritzi-Lehnert, K. S. Drese "From sample-to-answer: integrated genotyping and immunological analysis microfluidic platforms for the diagnostic and treatment of coeliac disease ", Proc. SPIE 7929, Microfluidics, BioMEMS, and Medical Microsystems IX, 79290E (February 14, 2011)

2010

Theofilos Chrysikos, Tasos Dagiuklas and Stavros Kotsopoulos, "Wireless Information-Theoretic Security in an Outdoor Topology with Obstacles: Theoretical Analysis & Experimental Measurements", EURASIP Journal on Wireless Communications and Networking, August 2010

Emmanouil Panaousis, Christos Politis, Konstantinos Birkos, Christos Papageorgiou and Tasos Dagiuklas, Security Model for Emergency Real-Time Communications in Autonomous Networks, Journal of Information Systems Frontiers, Special Issue on Ubiquitous Multimedia Services, April 2010.

George Kambourakis, Dimitris Geneiatakis, Stefanos Gritzalis, Tasos Dagiuklas, Costas Lambrinoudakis, Sven Ehlert, Jens Fiedler, "High Availability for SIP: Solutions and Real-Time Measurement Performance Evaluation", International Journal of Disaster Recovery and Business Continuity, February 2010, SERSC.

2009

Jonathan Rodriguez, Michail Tsagkaropoulos, Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, A Middleware Architecture Supporting Seamless and Secure Multimedia Services across Inter-Technology Radio Access Network, IEEE Wireless Communications Magazine, October 2009.

2008

Michail Tsagaropoulos, Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, Securing IP Multimedia Subsystems infrastructure: protection against attacks, The Journal of the Institute of Telecommunications Professionals, Vol. 2, Part 3, ISSN 1447-4739, October 2008.

Ilias Politis, Michail Tsagkaropoulos, Tasos Dagiuklas and Stavros Kotsopoulos, Power Efficient Video Multipath Transmission over Wireless Multimedia Sensor Networks, ACM Mobile Networks and Applications Journal (Journal, Vol. 13, No. 3, August 2008.

Sven Ehlert, Ge Zhang, Dimitris Geneiatakis, Tasos Dagiuklas, Georgios Kambourakis and Jiri Markl, Two Layer Denial of Service Prevention on SIP VoIP Infrastructures, Elsevier Computer Communications Journal, Vol. 31, No. 10, June 2008.

Michael Georgiades, Tasos Dagiuklas and Klaus Moessner, On the enhancement of Mobility Management and Multimedia Communications in Heterogeneous Radio Access Networks, International Journal of Internet Protocol and Technology, Vol. 3, No.1, February 2008.

2007

Ilias Politis, Thomas Pliakas, Michail Tsagkaropoulos and Tasos Dagiuklas, Distortion optimized scheduling and QoS driven prioritization of Multiple video streams over 802.11e Networks, Advances on Multimedia Journal, 3rd Quarter, 2007

Dimitris Geneiatakis, Georgios Kambourakis, Costas Lambrinoudakis, Tasos Dagiuklas and Stefanos Gritzalis, A Framework for Protecting a SIP-based Infrastructure against Malformed Message Attacks, Elsevier Computer Networks Journal, Vol. 51, No. 11, July 2007.

Tasos Dagiuklas, Christos Politis, Sara Grilli, Glaugio Bigini, Yacine Rebahi, Dorgham Sisalem and R. Tafazolli, Seamless Multimedia Sessions and Real-Time Measurements across Hybrid 3G and WLAN Networks, International Journal of Wireless and Mobile Computing, 2nd Quarter, 2007.

Ilias Politis, Michail Tsagkaropoulos, Tasos Dagiuklas, Stavros Kotsopoulos and Peter Stavroulakis, On the QoS Assessment of Video Sessions in Heterogeneous 3G-WLAN Networks with Seamless and Secure Mobility Support, China Communications Magazine, February 2007.

2006

Dimitris Geneiatakis, Tasos Dagiuklas, Georgios Kambourakis, Sven Ehlert, Costas Lambrinoudakis, Dorgham Sisalem, Stefanos Gritzalis, Survey of Security Vulnerabilities in Session Initiation Protocol, IEEE Communication Surveys, Vol. 8, No.3, May 2006.

2005

Tasos Dagiuklas, Stephen Xarhoulacos and Panos Dallas, Real-Time Calculation of the R-Factor of VoIP Connections using RTP/RTCP Traffic, The Mediterranean Journal of Computer Networks, Vol. 1, No. 2, October 2005.

2004

Christos Politis, Tasos Dagiuklas, Kar Ann Chew, Michael Georgiades and Rahim Tafazolli, Hybrid Multilayer Mobility Management with Context AAA capabilities for All-IP Networks, IEEE Wireless Communications Magazine, Vol. 12, No.3, August 2004.

 

Conference Papers

2016

Panagiotis Galiotos, Tasos Dagiuklas, Stavros Kotsopoulos, "Non-Conforming Behavior Detection for VoIP-Based Network Systems",It has been accepted for presentation at IEEE ICC, Kuala Lumpur, May 2016

Georgios Charalampopoulos, Theofilos Chrysikos, Tasos Dagiuklas, 'V2I Applications in Highways: How RSU dimensioning can improve service delivery', It has been accepted for presentation in IEEE ICT conference, May 2016, Thessaloniki, Greece

2015

Panagiotis Galiotos, Tasos Dagiuklas, Stavros Kotsopoulos, "Call-level VoIP traffic modelling based on data from a real-life VoIP service provider" has been accepted for presentation at IEEE GLOBECOM 2015 Workshop on Heterogeneous Carrier Communication Technologies (HetCarrierCom), December 2015, San Diego, USA

Ilias Politis, Asimakis Lykourgiotis, Tasos Dagiuklas, Stavros Kotsopoulos, "Modeling 3D Video User Experience for wireless networks", It has been accepted for presentation at IEEE ICME 2015, Torino, Italy

Constandinos X. Mavromoustakis, George Mastorakis, Charalambos Mysirlidis, Tasos Dagiuklas, Ilias Politis, Ciprian Dobre, Evangelos Pallis, "On the Perceived Quality Evaluation of Opportunistic Mobile P2P Scalable Video Streaming" has been accepted for presentation at 11th IEEE International Wireless Communications & Mobile Computing Conference (IWCMC), Dubrovnik, Croatia, August 2015

George Rontidis, Emmanouil Panaousis, Aron Laszka, Tasos Dagiuklas, Pasquale Malacaria, Tansu Alpcan, "A Game-Theoretic Approach for Minimizing Security Risks in the Internet-of-Things", it has been accepted For presentation at the 1st IEEE Workshop on Security and Privacy for Internet of Things and Cyber-Physical Systems, IEEE ICC London, UK, June 2015

Kostas Birkos, Foteini Andriopoulou, Christos Papageorgiou, Tasos Dagiuklas, Stavros Kotsopoulos "Enhanced Failover Mechanisms for Tree-based Peer-to-Peer Streaming", it has been accepted for presentation at IEEE ICC, London, UK, June 2015

Charalampos Mysirlidis, Asimakis Lykoyrgiotis, Tasos Dagiuklas, Ilias Politis, Stavros A. Kotsopoulos "Media-Aware Proxy: Application Layer Filtering and L3 Mobility for Media Streaming Optimization", it has been accepted for presentation at IEEE ICC, London, UK, June 2015

Charalampos Mysirlidis, Dino Kotaranin, Savina Gruicic, Emil Dumic, Tasos Dagiuklas, Pedro M. R. Rocha, Luis A. Da Silva Cruz and Athanassios Skodras, "STESCAL3D: Subjective evaluation of HD stereo video streaming using H.264 SVC in diverse laboratory environments" has been accepted for presentation at 7th IEEE International Workshop on Quality of Multimedia Experience (QoMEX), Costa Navarion, Greece, May 2015

2014

Valdemar Monteiro, Kazi M. S. Huq, Shahid Mumtaz, Hugo Marques, Christos Thomos, Tasos Dagiuklas and Jonathan Rodriguez, "3D Video Streaming Transmission Over OFDMA-Based Systems", 21st IEEE ICIP, Paris, France, October 2014

George Papadogiannopoulos, Tasos Dagiuklas, Ilias Politis, Asimakis Lykourgiotis, "A Stereo Client using Open SVC decoder extensions: QoE Performance Evaluation", 21st IEEE ICIP, Paris, France, October 2014

Charalampos Mysirlidis, Ilias Politis, Tasos Dagiuklas "QoE model of scalable MDC stereoscopic video over IP networks", 21st IEEE ICIP, Paris, France, October 2014

George Papadogiannopoulos, Tasos Dagiuklas, Ilias Politis, Asimakis Lykourgiotis, Stavros Kotsopoulos, "Stereo Video Quality Evaluation in Heterogeneous Networking Conditions", IEEE TEMU, Heraklion, Crete, July 2014

Charalampos Mysirlidis, Tasos Dagiuklas, Ilias Politis, Erhan Ekmekcioglu, Safak Dogan, Stavros Kotsopoulos, "Quality Evaluation of 3D video using Colour-plus-Depth & MDC over IP Networks", 3DTV-CON 2014, Hungary, Budapest, July 2014

Yiannis Siakoulis, Panagiotis Galiotos, Tasos Dagiuklas, Stavros Kotsopoulos, "The Impact of Simulation Duration on the Performance of the OLSR, AODV and DSDV Protocols, in a Heavy-Loaded Ad-Hoc Wireless Mobile Environment", 1st IEEE Conf. on System Informatics, Modelling & Simulation, Sheffield, UK, April 2014

2013

George Papadogianopoulos, Ilias Politis, Tasos Dagiuklas, Lambros Dounis, "Perceptual quality assessment of HTTP adaptive video streaming",  IEEE GLOBECOM, Atlanta USA, December 2013

G. Charalampopoulos, T. Dagiuklas, "Performance Evaluation of VANETs with Multiple Car Crashes in Different Traffic Conditions", Proceedings of the Seventh International Working Conference on Performance & Security Modelling and Evaluation of Cooperative Heterogeneous Networks (HET-NETs), Ilkley, UK, Nov. 2013

Christos Tselios, Ilias Politis, Konstantinos Birkos, Tasos Dagiuklas, Stavros Kotsopoulos, "Cloud for Multimedia Applications and Services over Heterogeneous Networks ensuring QoE", IEEE CAMAD, Berlin, September 2013

Ioannis M. Stephanakis, Ioannis P. Chochliouros, Tasos Dagiuklas and George C. Anastassopoulos, "A Novel Rate-Distortion Method In 3D Video Capturing In The Context of High Efficiency Video Coding (HEVC) In Intelligent Communications ", IFIP 2013, Cyprus, September 2013

Safak Dogan, Erhan Ekmekcioglu, Ahmet Kondoz, Arda Akman, Fernando Pascual Blanco, Ilias Politis, Tasos Dagiuklas, Hugo Marques, “Real-time immersive multimedia experience for collaborating users over hybrid broadcast networks”, Future Network & Mobile Summit (FUNEMS 2013), Lisbon, Portugal, July 2013)

Miltiadis Mplatsas, Ilias Politis, Tasos Dagiuklas, Stavros Kotsopoulos, "A Performance Study of LT Based Unequal Error Protection for 3-D Video Streaming",  DSP, Santorini, Greece, July 2013

Paris Kitsos, Tasos Dagiuklas, Nikos Voros, Thanos Skodras, "2D DCT for Ultra High Definition Video Coding", DSP, Santorini, Greece, July 2013

Kostas Birkos, Christos Papageorgiou, Tasos Dagiuklas, Stavros Kotsopoulos, A Failover Mechanism for Peer-to-Peer Streaming over Multiple Multicast Trees, IEEE ICC, Budapest, Hungary, June 2013

Athanasios Kordelas, Ilias Politis, Asymakis Lykourgiotis, Tasos Dagiuklas, Stavros Kotsopoulos, A Media Aware Platform for Real-time Stereoscopic Video Streaming Adaptation, IEEE ICC, Budapest, Hungary, June 2013

Theofilos Chrysikos, Tasos Dagiuklas, Stavros Kotsopoulos, "Wireless Information Security in MANETs", IEEE ICC, Budapest, Hungary, June 2013

Ilias Politis, Demuni De Silva, Safak Dogan, Chamitha de Alwis, Tasos Dagiuklas, Ahmet Kondoz, Objective Measurement of Transmission Losses and Compression Artefacts in Stereoscopic 3D Video, IEEE ICC, Budapest, Hungary, June 2013

Charalambos Mysirlidis, Panagiotis Galiotos, Tasos Dagiuklas, Stavros Kotsopoulos, "Performance Quality Evaluation with VoIP Traffic Aggregation in Mobile Ad-Hoc Networks", IEEE WoWMoM (CONWIRE Workshop), Madrid, Spain, June 2013

Kostas Birkos, Christos Tselios, Tasos Dagiuklas, Stavros Kotsopoulos, Peer Selection and Scheduling of H.264 SVC Video over Wireless Networks, IEEE WCNC, Annaheim, USA, April 2013

2012

Lampros Dounis, Ilias Politis , Christos Tselios , Athanasios Kordelas , Tasos Dagiuklas , "On modeling QoE of 3D video streaming over IP networks", IEEE GLOBECOM QoEMC Workshop, December 2012

Athanasios Kordelas, Tasos Dagiuklas and Ilias Politis, Performance evaluation of 3D stereo video streaming over IP networks, PCI2012, Piraeus, Greece, October 2012.

Asimakis Lykourgiotis, Stavros Kotsopoulos, Tasos Dagiuklas, "A comprehensive simulation study of Low Latency Handoffs in Mobile IPv4 for VoIP in IEEE 802.11b WLAN", ACM MSWiM, Paphos, Cyprus, October 2012

Konstantinos Birkos, Christos Tselios, Tasos Dagiuklas, "A Study on Cooperative SVC Video Streaming over Hybrid Residential and Wireless Networks", IEEE CAMAD, Barcelona, Spain, September 2012

Stavros Kotsopoulos, Christos Tselios, Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, "Cloud Computing: A Great Revenue Opportunity for Telecommunication Industry", FITCE Congress 2012, Poznan, Poland, September 2012

Athanasios Kordelas, Tasos Dagiuklas and Ilias Politis, On the performance of H.264/MVC over lossy IP-based networks, EUSIPCO, Bucharest, Romania, August 2012

Sotiris Karachontzitis, Tasos Dagiuklas and Lambros Dounis, Fair Cross-layer Scheme for Heterogeneous H.264/AVC Video Streams over LTE, IEEE IWCMC, Cyprus, August 2012.

Kostas Birkos et al., Towards 3D video delivery over heterogeneous networks: The ROMEO approach, IEEE TEMU2012, Heraklion, Crete, Greece, July 2012.

Christos Tselios, Kostas Birkos, Panagiotis Galiotos, Tasos Dagiuklas and Stavros Kotsopoulos, Malicious Threats and Novel Security Extensions in P2PSIP, IEEE PerNEM 2012, Lugano, Switzerland, March 2012

2011

Ilias Politis, Labros Dounis, Tasos Dagiuklas, On the quality of assessment of H.264/AVC video streams under seamless handoff, ICST/ACM Mobimedia, Cagliari, Italy, September 2011

Ilias Politis, Mihail Tsagkaropoulos, Labros Dounis, Tasos Dagiuklas, On measuring the perceptual quality of video streams over lossy wireless networks, ICST/ACM Mobimedia, Cagliari, Italy, September 2011

Thedoros Kapourniotis, George Polyzos, Tasos Dagiuklas, Panayiotis Alegragkis, Scam and Fraud Detection in VoIP Networks: Analysis and Countermeasures using User Profiling, 50th FITCE Congress, Palermo, Italy, August 2011

Chritsos Tselios, Ilias Polits, Michail Tsagkaropoulos, Tasos Dagiuklas, Valuing Quality of Experience: A Brave New Era of User Satisfaction and Revenue Possibilities, 50th FITCE Congress, Palermo, Italy, August 2011

Sotiris Karahazidis, Tasos Dagiuklas and Lambros Dounis, Novel Cross-layer Scheme for Video Transmission over LTE-based Wireless Systems, IEEE ICME, Barcelona, Spain, July 2011

Mihail Tsagkaropoulos, Ilias Politis, Christos Tselios, Tasos Dagiuklas and Stavros Kotsopoulos, Service Continuity over Intertechnology RATs, IEEE CAMAD, Kyoto, Japan, June 2011

Lambros Dounis, Ilias Politis and Tasos Dagiuklas, On the Comparison of Real-Time Rate Control Schemes for H.264/AVC Video Streams over IP-based networks using network feedbacks, IEEE ICC, Kyoto, Japan, June 2011

2010

Ilias Politis, Michail Tsagkaropoulos and Tasos Dagiuklas, Real-time QoS management of video streams across heterogeneous Radio Access Technologies, 25th WWRF Meeting, London, November 2010.

Theofilos Chrysikos, Tasos Dagiuklas and Stavros Kotsopoulos, Wireless Information-Theoretic Security for Moving Users in Autonomic Networks, IFIP Wireless Days, Venice, Italy, October 2011.

Christos Papageorgiou, Konstantinos Birkos, Tasos Dagiuklas and Stavros Kotsopoulos, Enabling Secure VoIP Communication with P2PSIP for Emergency Ad Hoc Networks, 13th ACM MSWIM, Bordum Turkey, October 2010

Mihail Tsagaropoulos, Ilias Politis, Christos Tselios, Tasos Dagiuklas and Stavros Kotsopoulos, Added-Value Services Provisioning over inter-technology radio access network, 49th FITCE Congress, Santiago de Compostella, Spain, September 2010

Labros Dounis, Michael Tsagaropoulos, Ilias Politis and Tasos Dagiuklas, On the impact of MIH triggering techniques on the performance of Video Streaming across Heterogeneous RATs, ACM Mobimedia, Lisbon, Portugal, September 2010

Panagiotis Galiotos, Tasos Dagiuklas and Stavros Kotsopoulos, Analysis of Cross-Layer Interactions for VoIP Services over Ad-Hoc Networks, ACM Mobimedia, Lisbon, Portugal, September 2010

Panagiotis Galiotos, Tasos Dagiuklas, Stavros Kotsopoulos, Novel Cross-Layer Design for VoIP Services in Wireless Networks, ICT Future Network and Mobile Summit, Florence, Italy, June 2010.

Labros Dounis, Michael Tsagaropoulos, Ilias Politis and Tasos Dagiuklas, An Experimental MIH Platform for Testing Video Streaming Services across Heterogeneous Radio Access Technology Networks, Second ICST MOBILIGHT Conference, Barcelona, Spain, May 2010.

2009

Hasan Al Khazaali, Christos Papageorgiou, Ilias Politis, Tasos Dagiuklas, Video over MANETs: The Impact of Obstacles, Node Mobility and Background Traffic on The Perceived Video Quality, Third International IEEE Conference on New Technologies, Mobility and Security, Cairo, Egypt, December 2009

Christos Papageorgiou, Kostas Birkos, Tasos Dagiuklas and Stavros Kotsopoulos, Simulating the mobility of mission ad hoc critical networks (Best Paper Poster Award), 12-th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM), Tenerife, Spain, October, 2009.

Kostas Birkos, Christos Papageorgiou, Tasos Dagiuklas and Stavros Kotsopoulos, User and Network Level Evaluation of VoIP over Emergency Ad-hoc Networks, ACM Mobimedia Conference, London, UK, September 2009

Ilias Politis, Michail Tsagaropoulos, Tasos Dagiuklas, Stavros Kotsopoulos, Enhanced vertical handover based on 802.21 framework for real-time video streaming, ACM Mobimedia Conference, London, UK, September 2009

Christos Papageorgiou, Kostas Birkos, Tasos Dagiuklas and Stavros Kotsopoulos, "An obstacle-aware human mobility model for ad hoc networks, 17th Annual Meeting of the IEEE/ACM International Symposium on Modelling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), London, UK, September 2009.

Emmanouil Panaousis, Arvind Ramrekha, Konstantinos Birkos, Christos Papageorgiou, Vahid Talooki, George Matthew, Cong Thien Nguyen, Corrine Sieux, Christos Politis, Tasos Dagiuklas, Jonathan Rodriguez, A Framework Supporting Extreme Emergency Services, ICT Mobile Summit, Santander, Spain, June 2009

Christos Papageorgiou, Kostas Birkos, Tasos Dagiuklas, Stavros Kotsopoulos, "Dynamic trust establishment in emergency ad hoc networks", ACM IWCMC 2009 Conference, Leipzig, Germany, June 2009.

Theofilos Chrysikos, Tasos Dagiuklas, and Stavros Kotsopoulos, A Closed-Form Expression for Outage Secrecy Capacity in Wireless Information-Theoretic Security, First ICST International Workshop on Security in Emerging Wireless Communication and Networking Systems, Athens, Greece, September 2009

Micheal Tsagkaropoulos, Ilias Politis, Christos Tselios, Tasos Dagiuklas and Stavros Kotsopoulos, Evolution of next generation networking for secure multimedia services: the MIH approach, 48th FITCE Conference, Prague, Czech Rep., 3-5 Sept, 2009.

D. Kandris, M. Tsagkaropoulos, I. Politis, A. Tzes and S. Kotsopoulos, A hybrid scheme for video transmission over wireless multimedia sensor networks, 17th Mediterranean Conference on Control and Automation, pp. 964-969, Thessaloniki, Greece, June 24-26, 2009.

2008

Ilias Politis, Mihail Tsagkaropoulos and Stavros Kotsopoulos, Optimizing Video Transmission over Wireless Multimedia Sensor Networks, IEEE GLOBECOM Conference, New Orlenas, USA, December 2008

Michail Tsagkaropoulos, Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, Securing IP multimedia subsystem (IMS) infrastructures: protection against attacks, 47th FITCE Congress, London, UK, September 2008.

Mihail Tsagaropoulos, Ilias Politis, Tasos Dagiuklas and Stavros Kotsopoulos, On QoS Adaptation of Multimedia Communications Using IMS, ACM Mobimedia Conference, Oulu, Finland, July 2008

Christos Politis, Tasos Dagiuklas, Yacine Rebahi, IMS to Support Emergency Services and Applications, Mobimedia Conference, Oulu, Finland, July 2008

Panagiotis Galiotos and Tasos Dagiuklas, Using TCP-Friendly algorithms to enhance the real-time streaming data performance over a Mobile Wireless Ad-Hoc network, TEMU International Conference, Ierapetra, Greece, July 2008.

2007

Ilias Politis, Thomas Pliakas, Michail Tsagkaropoulos, Tasos Dagiuklas, Stavros Kotsopoulos, Distortion optimized scheduling and QoS driven prioritization of video streams over WLAN, 16th Packet Video Workshop, Laussane, Switzerland, November 2007.

Ilias Politis, Michail Tsagaropoulos and Tasos Dagiuklas, IMS Evolution and IMS Test-Bed Service Platforms, PIMRC 2007, Athens, Greece, September 2007.

Michail Tsagkaropoulos, Ilias Politis, Dimitrios Raptis, Vassilios Stylianakis, Tasos Dagiuklas and Stavros Kotsopoulos, IMS Security for WiMax, FITCE 2007, Warsaw, Poland, August 2007.

Ilias Politis, Mihail Tsagkaropoulos, Tasos Dagiuklas and Stavros Kotsopoulos, Intelligence Packet Scheduling for optimized video transmission over wireless networks, ACM Mobimedia Conference, Nafpaktos, Greece, August 2007.

2006

Michael Georgiades, Tasos Dagiuklas and Rahim Tafazolli, Middlebox Context Transfer for multimedia sessions support in All-IP Networks, ACM International Wireless Communications and Mobile Computing Conference, Vancouver, Canada, July 2006.

Dimitris Geniatakis, Tasos Dagiuklas, Costas Lambrinoudakis, George Kambourakis and Stefanos Gritzalis, Novel Protecting Mechanism for SIP-Based Infrastructure against Malformed Message Attacks: Performance Evaluation Study, 3rd CSNDSP2006, July 2006, Patras, Greece

George Kambourakis, Dimitris Geniatakis, Tasos Dagiuklas, Costas Lambrinoudakis, and Stefanos Gritzalis, Towards effective SIP Load Balancing,3rd VoIP Security Workshop, Berlin, Germany, June 2006

Standardization Activities

2010

Konstantinos Birkos, Christos Papageorgiou, Panagiotis Galiotos, Tasos Dagiuklas, Christos Tselios, Stavros Kotsopoulos, Security Mechanisms and Key Refresh for P2PSIP Overlays, IETF Internet Draft, March 2010

Invited papers - Presentations

2010

Dionisis Kandris, Mihail Tsagkaropoulos, Ilias Politis, Power awareness routing and video QoS optimization schemes over wireless multimedia sensor networks, IEEE Communications Society, MCTC E-letter, vol. 5, no. 4, July 2010

Ilias Politis and Tasos Dagiuklas, Current and future open research issues on multimedia over embedded systems, IEEE Communications Society, MMTC E-Letter, vol. 5, no. 3, May 2010

Tasos Dagiuklas, Future Internet Media Challenges in the Mobile Broadband Era, ITU/Cyta/INA Academy Workshop on Mobile Broadband: a pillar for the Future Information Society, Nicosia, Cyprus, May 2010

2009

Tasos Dagiuklas, Anytime, Anywhere, Any Device: The (Wireless) Way Forward, Panelist at Mobilight, Athens, Greece, May 2009

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