Dr. Dorgham Sisalem Director Strategic Architecture Tekelec Am Borsigturm 11 13507 Berlin Germany sisalem at iptel.org

Home Publications Lecture Talks

2010 Sisalem, "SIP Overload Cotrol: Where are we Today", 21st Tyrrhenian Workshop on Digital Communications: Trustworthy Internet, Island of Ponza, Italy, September 6-8 2010  2009 Sisalem, D.;Andel; L., Kuthan; J., "Distributed Media Server Architecture for SIP using IP Anycast", IPTCOMM09, Atlanta, July 2009   Sisalem, D.; Floroiu; J., "A Comparative Analysis of the Security Aspects of the Multimedia Key Exchange Protcols", IPTCOMM09, Atlanta, July 2009 Sisalem, D.; Floroiu; J., Kuthan; J., Schulzrinne; H., Abend; U., "SIP Security",ISBN: 978-0-470-51636-2, Wiley, April 2009   2008 Sisalem, D.; Floroiu; J., "Protecting VoIP Services Against DoS Using Overload Control", NordSec 2008, Copenhagen, October 2008   Sisalem, D.; Liisberg, M.; Rebahi, Y., "A Theoretical Model of the Effects of Losses and Delays on the Performance of SIP", Globecom 2008, New Orleans, December 2008   2007 Zheng, G.; Ehlert, S.; Sisalem, D.; Kupka, T.; Magedanz, T., "Denial of Service Attack and Prevention on SIP VoIP Infrastructures Using DNS Flooding", IPTCOMM07, New York, July 2007   Fiedler, J.; Ehlert, S.; Sisalem, D.; Magedanz, T., "VoIP Defender: Highly Scalable SIP-based Security Architecture", IPTCOMM07, New York, July 2007   2006 Geneiatakis, D.; Dagiouklas, A.; Ehlert, S.; Kambourakis, G.; Lambrinoudakis, C.;Sisalem, D.; Gritzalis, S., "Survey of Security Vulnerrabilities in SIP", IEEE Communications Tutorials and Surveys, Vol. 8, No. 3, October 2006   Sislaem, D.; Kuthan, J.; Ehlert, S., "Denial of Service Attacks Targeting a SIP VoIP Iinfrastructure - Attack Scenarios and Prevention Mechanisms", IEEE Networks Magazine, Vol20, No. 5, September/October 2006   Fiedler, J.; Sisalem, D.; Magedanz, T.," External Replication State for SIP Servers", Third VoIP Security Workshop, Berlin, June, 2006 2005 Ehlert, S.; Sisalem, D.; Wolisz, A., "Performance Analysis of Concurrent Multicast / TCP Traffic Over Lossy High Delay Links", International Workshop on Satellite and Space Communications 2005 (IWSSC 2005), Siena, Italy, Sep 2005 Sisalem, D.; Corici, M.; Ehlert, S.; Popescu-Zeletin, R., "VDSat: Nomadic Satellite-Based VoIP Infrastructure", International Workshop on Satellite and Space Communications 2005 (IWSSC 2005), Siena, Italy, Sep 2005 Rebahi, Y.; Sisalem, D., "Malicious Packet Dropping with Bottleneck Consideration in AD HOC Networks", 3rd International Workshop in Wireles Security Technologies, April 2005, London, UK Mujica-V, V.E.; Sisalem, D.; Popescu-Zaletin, R. "NEURAL: A Self-Organizing Routing Algorithm for Ad Hoc Networks" Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, Trentino, Italy, April 2005 Rebahi, Y.; Sisalem, D., "SIP Service Providers and the Spam Problem", 2nd workshop on securing voice over IP, June 2005, Washington, USA Rebahi, Y.; Mujica, V.; Sisalem, D., "A Reputation-Based Trust Mechanism for Ad Hoc Networks", The 10th IEEE Symposium on Computers and Communications, June 2005, Cartagena, SPAIN Rebahi, Y.; Mujica, V.; Simons, C.; Sisalem, D., "SAFE: Securing pAcket Forwarding in ad hoc nEtworks", 5th Workshop on Applications and Services in Wireless Networks, June/July 2005, Paris, France Rebahi, Y.; Sisalem, D.; Depirianto, U.; "SIP-Based Multimedia Services Provision in Ad Hoc Networks" 7th IFIP International Conference on Mobile and Wireless Communications Networks, Marrakech, Morocco, September 19-21, 2005 MujicaV, V.E ;Rebahi, Y.; Sisalem, D.; Popescu Zeletin, R., "Performance Comparison of the Neuron Routing Algorithm for Mobile Ad Hoc Networks", 7th IFIP International Conference on Mobile and Wireless Communications Networks, Marrakech, Morocco, Sep 19-21, 2005 Farks, K.; Wellnitz, O.; Dick, M.; Gu, X.; Busse, M.; Effelsberg, W.; Rebahi, Y.; Sisalem, D.; Grigoras, D.; Stefanidis, K.; Serpanos, D. N., "Real-time Service Provisioning for Mobile and Wireless Networks", ENEXT special issue for Computer Communications journal, Fall 2005 Sisalem, D., "A Survey of Congestion and QoS Control Mechanism for the Internet", The Industrial Information Technology Handbook, Chapter 22, 2005 Sisalem, D. "VoIP or When can we Unplug the Phone Cable", Lufhtansa Magazine, March, 2005 2004 Mujica V., V.E.; Sisalem, D.; Zeletin-Popescu, R.; Wolisz, A., "TCP-Friendly Congestion Control over Wireless Networks", The Fifth European Wireless Conference Mobile and Wireless Systems beyond 3G, Febreary 24-27 2004, Barcelona, Spain Sisalem, D.; Kuthan, J., "Inter-domain Authentication and Authorization Mechanisms for Roaming SIP Users", 3rd International Workshop on Wireless Information Systems, April 2004, Porto, Portugal Sisalem, D.; Kuthan, J.,  "Authentication and Authorization For Integrated SIP Services in Heterogeneous Environments", 2nd International Workshop on Security in Information Systems, April 2004, Porto, Portugal Nyberg, K.; Sisalem, D.; "Establishing Security in Personal Area Networks", Secure Wireless Workshop, ECWT2004, October 2004, Amsterdam Sisalem, D.; Kuthan, J.; Schäfer, G.,  "DoS Attacks on SIP Infrastructures",  Voice over IP: Challenges and Solutions, GlobeCom 2004, December 2004, Dallas Kumar, V.A.; Sisalem, D.,  "TCP based Denial of Service Attacks to Edge Network: Analysis and Detection", 7th International Conference on Information Technology, december 2004, Hyderabad, India Kumar, A.; Sisalem, D., "Analysis and Detection of a Denial-of-Service Attack Scenario generated by TCP Receivers to Edge Network", ADCOM 2004, 12th International Conference on Advanced Computing & Communication, December 2004, India. Also Available under Lecture Notes in Computer Science, Publisher: Springer Berlin / Heidelberg , ISSN: 0302-9743 2003 Bigini, G.; Grilli, S.; Rebahi, Y.; Sisalem, D., "Cross-domain Multimedia Service Provisioning, the EVOLUTE Solution", Internetworking 2003 International Conference, California, USA Rebahi, Y.; Sisalem, D., et al. "The SIP Express Router, An Open Source SIP Platform", Evolute - seamlEss multimedia serVices Over alL IP-based infrastrUcTurEs Workshop 2003, Guildford, UK Grilli, S.; Bigini, G.; Sisalem, D.; Rebahi, Y., "Multimedia Service Provisioning in EVOLUTE", IST Mobile & Wireless Communications SUMMIT 2003, Aveiro, Portugal Floroiu, J.W.; Ruppelt, R.; Sisalem, D.; Stephanopoli, J. V., "Seamless Handover in Terrestrial Radio Access Networks: A Case Study", IEEE Communications Magazine, Vol. 41 No. 11, November 2003 Dagiuklas, T.; Politis, C.; Grilli, S.; Bigini, G.; Sisalem, D.; Rebahi, Y.; Tafazolli, R., "Seamless Multimedia Network and Service Access Over All-IP Based Infrastructures:The EVOLUTE Approach", European Transactions on Telecommunications Journal 2002 Sisalem, D.; Rebahi, Y., "AAA Management in the Internet for Wireless and 3G Users", presentation in WWRF#7, December 2002, Eindhoven, Netherlands 2001 Sisalem; D.; Wolisz, A., "Constrained TCP-Friendly Congestion Control for Multimedia Communication", 2nd International Workshop on Quality of future Internet Services (QofiS 2001), 24-26 September, 2001, Coimbra, Portugal Ruppelt, R.; Pelinescu, A.; Constantin, C.; Floroiu, J.; Sisalem, D.; Butscher, B., "Building ALL-IP Based Virtual Private Networks in Mobile Environment", in the International Workshop on Informatik and Mobile communication over wireless LAN: Research and applications, September 26th, 2001, Austrian. 2000 Sisalem, D., "TCP-Friendly Congestion Control for Multimedia Communication in the Internet", PhD thesis, Technical University of Berlin, Berlin, October 2000 Sisalem, D.; Wolisz, A.,  "LDA+ TCP-Friendly Adaptation: A Measurement and Comparison Study", in the 10th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV'2000), June 25-28, 2000, Chapel Hill, NC, USA Sisalem, D.; Wolisz, A., "MLDA: A TCP-friendly congestion control framework for heterogenous multicast environments", Eighth International Workshop on Quality of Service (IWQoS 2000), 5-7 June 2000, Pittsburgh. Sisalem, D.; Wolisz, A., "LDA+: Enhanced loss-delay based adaptation algorithm", IEEE International Conference on Multimedia and Expo (ICME 2000), July 30 - August 2, 2000, New York. Foeckel, S.; Kranz, M.; Kuthan, J.; Sisalem, D., "SIP: An open source implementation of SIP", First IP-Telephony Workshop, 2-13 April 2000, Berlin. Sisalem, D.; Schulzrinne, H., "The adaptive load service: An ABR-like service for the Internet", in Fifth IEEE Symposium on Computers and Communications (ISCC'2000), (France), July 2000. Dorgham Sisalem and Henning Schulzrinne, "The Direct Adjustment Algorithm: A TCP-Friendly Adaptation Scheme", in Quality of Future Internet Services, Berlin, Germany, September 2000. 1999 Sisalem, D.; Krishnamurthy, S.; Dao, S., "DiffRes: A light weight reservation protocol for the differentiated services environment", tech. rep., HRL Laboratories, Malibu, USA, Dec. 1999 Dorgham Sisalem and Adam M Wolisz, "Towards TCP-Friendly Adaptive Multimedia Applications Based on RTP", in 4th IEEE Symposium on Computers and Communications (ISCC), Egypt, July 1999. 1998 Dorgham Sisalem and Henning Schulzrinne, "The Loss-Delay Adjustment Algorithm: A TCP-friendly Adaptation Scheme", in Proc. International Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV), Cambridge, England, July 1998, pp. 215-226. Ilona Schubert, Dorgham Sisalem, and Henning Schulzrinne, "A Session Floor Control Scheme", in International Conference on Telecommunications, Chalkidiki, Greece, June 1998. Dorgham Sisalem and Frank Emanuel, "QoS Control Using Adaptive Layered Data Transmission", in IEEE Multimedia Systems, Austin, Texas, June 1998. Dorgham Sisalem, "Fairness of Adaptive Multimedia Applications", in Conference Record of the International Conference on Communications (ICC), Atlanta, USA, June 1998. Dorgham Sisalem and Henning Schulzrinne, "The Multimedia Internet Terminal (MInT),"Telecommunications Systems, vol. 9, no. 3-4, pp. 423-444, Sep 1998. 1997 Dorgham Sisalem, "End-To-End Quality of Service Control Using Adaptive Applications", in IFIP 5th International Workshop on Quality of Service (IWQOS), New York, May 1997. 1996 Henning Schulzrinne and Dorgham Sisalem, "Interaction of ATM and IP Congestion Control", in Workshop on Integration of IP and ATM, St. Louis, Missouri, November 1996. Dorgham Sisalem and Henning Schulzrinne, "Congestion Control in TCP: Performance of Binary Congestion Notification Enhanced TCP Compared to Reno and Tahoe TCP", in International Conference on Network Protocols (ICNP), Columbus, Ohio, October 1996, pp. 268-275. Dorgham Sisalem, Henning Schulzrinne, and Christian Sieckmeyer, "The Network Video Terminal", in HPDC Focus Workshop on Multimedia and Collaborative Environments (Fifth IEEE International Symposium on High Performance Distributed Computing), Syracuse, New York, August 1996. Dorgham Sisalem and Henning Schulzrinne, "Binary Congestion Notification in TCP", in Conference Record of the International Conference on Communications (ICC), Dallas, Texas, June 1996. Dorgham Sisalem and Henning Schulzrinne, "Switch Mechanisms for the ABR Service: A Comparison Study", in Telecommunication Distribution Parallelism (TDP), La Londes Les Maures, France, June 1996. 1995 Dorgham Sisalem and Henning Schulzrinne, "End-to-End Rate Control in ABR", in 1st Workshop on ATM Traffic Management (WATM), Paris, France, December 1995, pp. 281-287. Dorgham Sisalem, "Rate Based Congestion Control and its Effects on TCP over ATM" , School of Engineering, TU Berlin, Berlin, June 1995.