Inhalt des Dokuments
Dr. Adel Al-Hezmi
Dr. Adel Al-Hezmi holds an M.Sc. (Dipl.-Ing.) and a PhD (Dr.-Ing.) in electrical engineering from Technische Universität Berlin, Germany with specific emphasis on telecommunication networks.
Dr. Al-Hezmi received his PhD in May 2011 with his thesis on “Efficient Session-based Multimedia Content Delivery in Next Generation Networks”. He is now working as a solution architect at the Qatar University Wireless Innovations Center (QUWIC) in Qatar.
2008 – 2010: He was responsible for design aspects related to the NGN and the IMS infrastructure in a leading telecommunication operator in Saudi Arabia since 2008.
2005 – 2008: He was a senior researcher at the Competence-Center "Next Generation Network Infrastructures" of Prof. Dr. Thomas Magedanz at the Fraunhofer Institute for Open Communication System (FOKUS), where he was leading the developments related to IMS based Triple Play, IPTV, mobile TV and interactive multimedia applications.
2004 – 2005: He worked on various projects in the area of Networking and Mobility in DiaLabor at Technische Universität Berlin.
2003 – 2003: He worked as a developer participating in various projects on the Next Generation Network Infrastructure at Fraunhofer Institute FOKUS.
1999 – 2002: He worked as part-time position at Siemens ICM and was as developer in system test for IN platforms and UMTS.
Today Telecom Operators are searching for ways to combine traditional telecommunication services with entertainment, messaging, interactivity and Web services accessible over heterogeneous wired or wireless access technologies and with different terminal capabilities with the target to enhance user experience, increase satisfaction, reduce churn and ultimately to improve revenues. Although, this rapid progress being made recently changes the way we consume multimedia content, the current growth in the demand for IP-based streaming applications shows that the evolution of Next Generation Network (NGN) will be largely driven by multimedia service delivery requirements. Adel Al-Hezmi is currently working on his dissertation which focuses mainly on efficient multimedia content delivery in Next Generation Network (NGN). The dissertation examines the highest level of abstraction in telecommunication architecture, where the interactions among components are capable of being realized in 3GPP IP Multimedia Subsystem (IMS) network. The work explores a junction on the frontiers of two research areas in IMS networks: multimedia applications and IMS core. However research in multimedia application has long been concerned with the improvement of software design and the development of new abstract interfaces, but has rarely been able to objectively evaluate the impact of various design choices on IMS session establishment. IMS, in contrast, is focused on the details of generic communication behavior between IMS nodes and improving the performance of the IMS core, often ignoring the fact that changing the interactions model of an IMS application and other IMS nodes can have more impact on performance than the communication protocol used for that interaction. My work is motivated by the desire to understand and evaluate the architectural design of real-time IMS-based multimedia applications through principled use of architectural constraints, thereby obtaining the functional, performance, and social properties desired of real-time IMS-based multimedia delivery network.In most of the classical IMS services the user and service provider – and probably the connectivity provider – are involved in the value chain and the related interfaces are already standardized between these players. However the value chain of a multimedia session (e.g. e-learning application or TV session) includes the content provider as a key player, which is not considered in the IMS standard. Furthermore, a multimedia session comprising live broadcast content often addresses thousands of participants that expose growth in the traffic and thus require more network resources and immediate reaction according to user action (e.g. session setup or update due to any change in user or network context). On the contrary, the traditional IMS service composes of few participants and less interactions.The IMS network uses several signaling and transport protocols each of which has several functions and related methods. If we understand the functions supported by each protocol, then its behaviors and corresponding impact on the network performance give us an understanding of the overall design's architectural properties. The specific needs of a multimedia application can then be matched against the properties of the design. Comparison becomes a relatively simple matter of identifying which architectural design satisfies the most desired requirements for that multimedia application. The objective of this research work is to study the current IMS-based delivery systems and corresponding content delivery approaches and to identify generalized content delivery functions with emphasis on efficiency and supporting interactivity and personalization as well as service openness. The resultant framework will be intent on the development of new mechanisms for session management between content provider, service provider, delivery system and consumer. This research work will be applied to enable provisioning of multimedia services over the IMS infrastructure deployed at Fraunhofer FOKUS testbed playgrounds.
 Friedrich O., Arbanowski S., Al-Hezmi A., Seeliger R.; section „IMS-based IPTV“ in Book Article: Ahson, S.A.: IP multimedia subsystem (IMS) handbook. Boca Raton, Fla.: CRC Press, 2009, pp. 411-442
 A. Al-Hezmi, G. Daher, T. Magedanz, J. Simoes: „SOA-based Multimedia Streaming Enabler over IMS Networks”, Emerging Research Projects, Applications and Services (ERPAS2009), at 7th International Conference on Advances in Mobile Computing & Multimedia (MoMM2009, ISBN 78-1-60558-659-5, Kuala Lumpur, Malaysia, 14-16 December 2009, www.iiwas.org/conferences/momm2009/index.php2008
 Christian Riede, Adel Al-Hezmi, Thomas Magedanz; “Session and Media Signaling for IPTV via IMS”; First International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications, February 12-15, 2008, Innsbruck, Austria; ACM Digital Library, 2008 ACM 978-1-59593-984-5/08/02
 Adel Al-Hezmi, Fabricio Carvalho de Gouveia, Thomas Magedanz; “Provisioning of Multimedia Services over Open NGN Testbed”; Ambi-sys'08, February 11-14, 2008, Quebec, Canada; ACM Digital Library, ISBN 978-963-9799-16-5
 A. Al-Hezmi, O. Friedrich, S. Arbanowski, T. Magedanz; “Interactive Multimedia Services over Open NGN Testbed”; Conference name: Tridentcom 2008, March 18 – 20, 2008, Innsbruck, Austria. Copyright © 2008 ACM ISBN # 978-1-60558-009-8,
 A. Al-Hezmi, C. Riede, O. Friedrich, S. Arbanowski, T. Magedanz; „Cross-Fertilization of IMS and IPTV services over NGN“;ITU-T KALEIDOSCOPE CONFERENCE – INNOVATIONS IN NGN, Geneva, 12-13 May 2008
 A. Al-Hezmi, F. Carvalho de Gouveia, M. Sher, O. Friedrich, T. Magedanz, „Provisioning IMS-based Seamless Triple Play Services over Different Access Networks”, IEEE/IFIP Network Operations & Management Symposium, NOMS 2008, ISBN 978-1-4244-2066-7, pp. 927-930, Salvador, Bahia, Brazil, April 2008.
 Riede, J.J. Pallares, A. Al-Hezmi, T. Magedanz: “Advanced Media Delivery in IMS-based Networks”, ICT-MobileSummit 2008, 10 - 12 June 2008, Stockholm, Sweden; ISBN: 978-1-905824-08-3
 Madiha Zafar, Nigel Baker, Meir Fuchs, Filipe Pinto, Adel Al-Hezmi , Telma Mota, Michael Knappmeyer; “Design of NGN Mobile Multicast Group Service Enablers”; -MobileSummit 2008 Conference Proceedings, Paul Cunningham and Miriam Cunningham (Eds), IIMC International Information Management Corporation, 2008, ISBN: 978-1-905824-08-3
 Filipe Cabral Pinto, Filipe Cabral Pinto, Michael Knappmeyer, Adel Al-Hezmi; “Signalling for IMS and MBMS Integration”; ICT-MobileSummit 2008 Conference Proceedings, Paul Cunningham and Miriam Cunningham (Eds), IIMC International Information Management Corporation, 2008, ISBN: 978-1-905824-08-3
 Oliver Friedrich, Robert Seeliger, Adel Al-Hezmi, Stefan Arbanowski, Thomas Magedanz, "Service Discovery & Selection for Next Generation IPTV Environments," icdt, pp.152-156, 2008 The Third International Conference on Digital Telecommunications (icdt 2008), 2008
 Friedrich O., Seeliger R, Al-Hezmi A., Riede C., Arbanowski S.; “Prototyping interactive and personalized IPTV-services on top of open IMS infrastructures”; Tscheligi, M.: Changing television environments. 6th European conference, EuroITV 2008: Salzburg, Austria, July 3-4, 2008; Proceedings. Berlin: Springer, 2008. (Lecture Notes in Computer Science 5066), pp. 204-208
 A. Al-Hezmi, T. Magedanz, J.J. Pallares, Riede; “Evolving the Convergence of Telecommunication and TV Services over NGN”; International Journal of Digital Multimedia Broadcasting; Volume 2008 (2008), Article ID 843270, 11 pages; doi:10.1155/2008/843270; dx.doi.org/10.1155/2008/8432702007:
 Friedrich, O.; Al-Hezmi, A.; Arbanowski, St.; Magedanz, T.: “Evolution of Next Generation Networks towards an integrated platform for IMS-based IPTV services”, Proceedings of the 3rd IEEE SAINT 2007 Workshop on Next Generation Service Platforms for Future Mobile Systems (SPMS 2007) in conjunction with the 2007 International Symposium on Applications and the Internet (SAINT), January 15-19, 2007, Hiroshima, Japan, ISBN 0-7695-2757-4
 O. Friedrich; A. Al-Hezmi; S. Arbanowski; T. Magedanz; “Next Generation IPTV services for an extended IMS architecture”; Autonomous Decentralized Systems, 2007. ISADS '07. Eighth International Symposium on March 2007 Page(s):429 – 436, Digital Object Identifier 10.1109/ISADS.2007.52
 Adel Al-Hezmi; Oliver Friedrich; Stefan Arbanowski; Thomas Magedanz; “Requirements for an IMS-based Quadruple Play Service Architecture”; Network, IEEE; Volume 21, Issue 2, March-April 2007 Page(s):28 – 33; Digital Object Identifier 10.1109/MNET.2007.334309
 A. Al-Hezmi, O. Friedrich, S. Arbanowski, T. Magedanz; “Provisioning of an Open NGN/Triple Play Toolkit and Testbed”; 3rd International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TridentCom); ISBN: 1-4244-0739-7; Orlando, Florida, May 21-23, 2007
 Christian Riede, Adel Al-Hezmi, Thomas Magedanz; “Quadruple Play - Session Management Enabler for Multimedia Streaming”; 16th IST Mobile & Wireless Communications Summit; Budapest, Hungary 1-5 July 2007, IEEE Catalog Number: 07EX1670C ; ISBN: 978-963-8111-66-1
 A. Al-Hezmi, M. Knappmeyer, B. Ricks, F. Cabral Pinto, R. Tönjes; “ENABLING IMS WITH MULTICAST AND BROADCAST CAPABILITIES”, PIMRC 2007, ISBN: 1-4244-1144-0; 3- 7 September, Athena,
 A. Al-Hezmi, N. Blum, T. Magedanz: “IMS basiertes Triple Pay Toolkit – Der FOKUS Open IMS Playground”, in Praxis Profiline – Triple Play, pp. 18-21, ISBN: 3-8259-1948, Herausgeber: Vogel Industrie Medien und Triple Play Alliance, Juli 2007, www.praxis-profiline.de"
 Michael Knappmeyer, Björn Ricks, Adel Al-Hezmi, Ralf Tönjes; “Advanced Multicast and Broadcast Content Distribution over Mobile Cellular Networks”; GlobeCOM2007, ISBN: 978-1-4244-1043-9; 26-30 Nov. 2007; Washington, DC, USA
 Adel Al-Hezmi, Muhammad Sher, Thomas Magedanz; “IP Multimedia Subsystem (IMS) Based Interactive Triple Play Framework”; the 5th International Workshop on the Frontiers of Information Technology (FIT), Islamabad, 17 - 18 December 2007
 Adel Al-Hezmi, Fabricio Carvalho de Gouveia, Thomas Magedanz; “Enabling Triple Play Services over NGN”; IEEE ITI 5th International Conference on Information & Communications (ICICT), Technology Media Convergence: Moving to the Next Generation; ISBN:1-4244-1430-X; 16 – 18 December 2007, Cairo, Egypt2006:
 Adel Al-Hezmi, Hakan Coskun, Yacine Rebahi; “Next generation Services: challenges and approaches”, NITS 2006 February, www.ccis.edu.sa, King Saud University, Riyadh, Kingdom of Saudi Arabia
 Yacine Rebahi, Adel Al-Hezmi, “Spam Prevention for Voice over IP”, NITS2006 February, www.ccis.edu.sa, King Saud University, Riyadh, Kingdom of Saudi Arabia
 St. Arbanowski, A. Al-Hezmi , O. Friedrich, T. Magedanz; „Internet Multimedia Subsystem as enabling platform for Next Generation TV”, ICC2006 June, www.ieee-icc.org/2006/ , Istanbul, Turkey
 Adel Al-Hezmi, Bernd Mrohs, Christian Räck, Muslim Elkotob, Stephan Steglich; “Next Generation Service Architecture: Challenges and Approaches”, IEEE Applications and Services in Wireless Networks (ASWN) 29-31 May 2006, www.aswn2006.org , Berlin, Germany
 A. Al-Hezmi, N. Blum, K. Knuettel, T. Magedanz; “Convergence in Services, Media and Networks - Basic requirements for Virtual Network Operators”, Convergence in Services, Media and Networks (ICIN), Mai 2006, Bordeaux, France, Second Best paper award
 A. Al-Hezmi, K. Knuettel, T. Magedanz, L. Xie; “SIP Servlet Execution Environment (SIPSEE) – An IMS / NGN SIP AS for Converged Applications”, Convergence in Services, Media and Networks (ICIN), Mai 2006, Bordeaux, France
 St. Arbanowski, A. Al-Hezmi , O. Friedrich, T. Magedanz; “Internet Multimedia Subsystem as enabling platform for Next Generation TV”, Jun IEEE International Conference on Communication 11-15 June 2006, Istanbul
 Adel Al-Hezmi, Yacine Rebahi, Thomas Magedanz, Stefan Arbanowski; “Towards an Interactive IPTV for Mobile Subscribers”, IEEE International Conference on Digital Telecommunications (ICDT), 29-31 August 2006, Cap Esterel, Côte d’Azur, France, ISBN 0-7695-2560-0
 N. Baker, M. Zafar, A. Al-Hezmi, M. Fuchs; “Enabling Multimedia Broadcast/Multicast Services over Converged Networks”; ; WWRF#17, Heidelberg, Germany, Nov. 2006
 A. Al-Hezmi, „Operator Panel of IPTV & Media Convergence - 5th International FOKUS IMS Workshop”; www.fokus.fraunhofer.de/en/fokus_events/ngni/ims_ws_09/index.html; November 11-12, 20092008:
 A. Al-Hezmi, T. Magedanz; “Towards IPTV Value Added Services – IMS as Enabler for “Interactive IPTV 2.0”, Workshop in Euroforum 14. Jahrestagung, “Die Zukunft der Kabel-TV-Netze”, www.euroforum.de/kabel-tv, Cologne, 26 – 27.02.08
 A. Al-Hezmi, „Operator Panel - 4th International FOKUS IMS Workshop”; www.fokus.fraunhofer.de/en/fokus_events/ngni/ims_ws_08/index.html; 6.-7. November 2008, Berlin2007:
 A. Al-Hezmi; “From FMC to Quadruple Play”, Workshop, symposium Next Generation Multimedia, Golf Hotel, Bled, Slovenia, May 14-15, 2007
 A. Al-Hezmi, T. Magedanz; “IMS for Triple Play and IPTV – Understanding the Role of IMS as NGN Platform”; tutorial, PIMRC 2007, Athens, Greece, 3 – 7 September A. Al-Hezmi; “Enabling IP-based Mobile Services with Multicast and broadcast capabilities”; workshop, PIMRC 2007, Athens, Greece, 3 – 7 September
 Oliver Friedrich, Adel Al-Hezmi; “ Media Interoperability Lab: IMS based IPTV – technical insides”, Session 2: IMS and IPTV workshop; 3rd FOKUS IMS Workshop, 15 – 16 November 2007, Berlin2006:
 A. Al-Hezmi, T. Magedanz, F. Schreiner; “Impacts of SOA on the Strategy for building Next Generation Network´s Multimedia Applications”, Workshop, IQCP SOA Forum, London, UK, May, 2006
 A. Al-Hezmi, T. Magedanz; “Overview of the IP Multimedia System (IMS) – Principles, Architecture and Applications”; Tutorial, ICNS 2006, July 16-19, 2006 - Silicon Valley, USA
 A. Al-Hezmi, T. Magedanz; “SOA-based Service Creation in Next Generation Networks”; Workshop, IQPC 3. SOA Jahresforum, Köln, Germany, 28. August 2006
 A. Al-Hezmi, T. Magedanz; “The 3GPP IMS as Service Platform for Next Generation Wireless Multimedia Applications - Practical Experiences from the OPEN IMS Playground@FOKUS”; Tutorial, the 9th ACM/IEEE Annual International Symposium on Modelling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM), 2 October 2006, Malaga, Spain
 A. Al-Hezmi “Towards Seamless Triple Play Services – IMS and the Access Network”; Workshop; Evolving Telecom Access Networks and Services Forum, Optimising Broadband and Wireless Access for Enhanced Next Generation Service Delivery, Amsterdam, Netherlands, 6th-8th November 2006
 A. Al-Hezmi, T. Magedanz; “IMS and NGN Fundamentals for next generation service providers and fixed-mobile convergence”; Tutorial, 3G WORLD CONGRESS & MOBILITY MARKETPLACE, Hong Kong Convention & Exhibition Centre, December 4, 2006
 A. Al-Hezmi, T. Magedanz; “Operator Challenges with IMS - How well will IMS actually deliverr in practice?”; Workshop, 3G WORLD CONGRESS & MOBILITY MARKETPLACE, Hong Kong Convention & Exhibition Centre, December 5, 20062005:
 A. Al-Hezmi, T. Magedanz; “IMS architectures as key for all IP networks”, IQPC 2005 September, Berlin, Germany
 A. Al-Hezmi, M. Siraj, S. Al- Wakeel, “Wireless Networks”, King Saud University, www.ccis.edu.sa, Riyadh, Kingdom of Saudi Arabia