Previous research interests
Education
Habilitation
à diriger des recherches, Nice-Sophia Antipolis University,
2008.
Thesis title: Quelle
architecture pour l’Internet du futur ?
Ph.D., Computer Science,
Thesis title: Etude des protocoles de contrôle de transmission à haut débit pour les
applications multimédias.
DEA, Computer Science,
Paris XI University, September
1987.
Thesis title: Communications temps réel dans les réseaux locaux.
Engineering Diploma, Electrical and Electronics Engineering, School of
Engineering,
Thesis title: Onduleur 1 KVA à Thyristors.
Professional position
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1999 – Present |
Senior Researcher
at INRIA Sophia Antipolis |
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Head of the Planète project-team on Protocols and Applications for
the Internet |
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1996 – 1999 |
Head of the Rodéo project-team on High Speed and Open Networks |
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1991 – 1999 |
Researcher at
INRIA Sophia Antipolis |
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2000 – 2001 |
Consultant for CS
Telecom |
Teaching Experience
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2001 – Present |
Professor at the Ecole Polytechnique,
Palaiseau. Course on Networking in Majeure 2 for computer
science (32h) |
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2007 – Present |
Responsible of the Networking and Distributed Systems Master programme
at |
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1995 – Present |
Master Course on
Networking at |
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1996 – 2002 |
Master Course on Group Communications at |
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1989 – 1996 |
Course on
“Algorithms of the Lower Layers” at ESSI (24h) |
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1991 – 1994 |
Course on
Networking at CERICS, then |
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1991 – 1994 |
Several Courses on Networks Interconnection in training centers for systems and
networks engineers (12h). |
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1991 – 2000 |
Several courses on High Speed Networks at ISIA, Ecole
des Mines, ENST, Master programme on Information Transmission and Processing
and Master program on Computer Science in Nice-Sophia Antipolis University. |
Participation to European Projects
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FP6 STREP (2006-2008) that extends the current PlanetLab
infrastructure to a federated testsbed models with
more heterogeneity and enhancing the ability of applications that are running
on PlanetLab to perceive the underlying network
environment. Other partners: LIP6, Intel Corporation UK, UCarlos
III Madrid, UCL, CINI, FT, UPisa, Alcatel-Lucent
Italia, Telekomunikacja Polska.
One of the major achievements of the project is a federated tested
architecture taken as a reference by the European Commission in the FIRE
initiative. |
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FP6 Network of Excellence (2004-2005) that focused on Internet
protocols and services. The general objective of E-NEXT is to reinforce
European scientific and technological excellence in the networking area
through a progressive and lasting integration of research capacities existing
in the European Research Area (ERA). In this project we actively prepared the
OneLab project on experimental testbeds. |
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IST Integrated Project (2004-2005) on the research and development of
a future, low cost, multi-service access network. The project is leaded by
Alcatel. Our contribution in the project focused on multicast support in
access networks and on hybrid overlay/IP multicast for large scale virtual
environment applications. |
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ACTS project (1998-2000) on the study of the convergence of Internet,
ATM and Satellite DVB networks. The project focused on reliable multicast,
mobility and security in hybrid environment. Other partners: Dassault Electronique, Eurocontrol, Eutelsat, Secunet, British Telecom, UCL and Cisco. One of the major
achievements of the project was the development and deployment of Internet
over satellite tunnelling software based on the udlr
IETF proposed standard. |
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Follow up of MERCI (1998-2000) focusing on enhancing the quality
(using FEC techniques) of the collaboration tools and their support over new
transmission media such as satellite or wireless links. Other partners: UCL, UiO,
Ubremen, Teles, New
Learning, HP and Shell. |
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Basic LTR project (1996-1998) on the experimental evaluation of new
protocol architectures based on ALF and ILP. Other partners: Dassault Electronique, |
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Telematics project (1995-1997) on the
technological components required for the deployment of collaborative work
tools. Other partners: UCL,
GMD, KTH, UiO, Teles, HP
and Shell. Major achievements are the RendezVous
modular video conferencing tool, FreePhone (audio
conferencing) and Mscrawl (shared white board). |
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EU-Australian collaboration project (1994-1995) on High Performance
and Flexible Protocol Architecture. Other partners: UCL, SICS, |
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Esprit Projects (1992-1995) on the definition of a “standard” Internet
Videoconferencing Service platform for research networks. Other partners:
UCL, SICS, GMD, |
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Esprit project (1990-1992) on the re-design of the OSI Layered
Protocols Architecture for efficient operation in high speed networks. Other
partners: BULL, Olivetti, Alcatel, INTRACOM, |
Participation to National Projects
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RNRT project (2000-2001) on building a
national experimental platform for new generation networking protocols and
services. Other partners: FT R&D, ENST, INT, Eurecom
and ENSTB. We contributed a large scale virtual environment application
(V-Eye) used to test the ability of the underlying network mechanisms to
support high performance applications with group communication and strict
timing requirements. Its follow-up VTHD++ (2002-2004)
focused on extending the scale of the platform and to provide the capability
for the user to tune and monitor the underlying network test-bed. |
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RNRT project (2001-2003) on the dynamic control
of IP networks. Other partners: LIP6, INRIA, France Télécom,
Thomson-CSF and QoSMIC. Our contribution in the
project focused on the evaluation of the complexity of dynamic resource
allocation mechanisms. |
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RNRT project (2000-2002) on the study of
static resource management in enterprise networks with diffserv
support. Other partners: CS Télécom, Thomson CSF Detexis (6wind), Cégétel. Our contribution
based on a simulation study of diffserv mechanisms
in large networks showed that functional complexity and parameter tuning are
major problems that prevent large deployment of quality of service in the
Internet. |
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RNRT project (2000-2003)on
the support of IP multicast over multi-beam satellites based on next
generation DVB processor with OBP. Other partners: Alcatel Space Industries,
CNES, LAAS, CRIL Ingénierie, ENSICA, ENSEEIHT, ISIS
and Polycom. Our major achievement was an
encapsulation scheme for efficient on-board switching of IP multicast packets
and related signalling in relation with PIM-SM. |
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RNRT project (1998-2001) on the design and
experimentation of new generation Internet protocols supporting mobility and
quality of service in heterogeneous IP, ATM and Satellite environment). Other
partners: Aerospatiale-Matra Lanceurs,
LAAS, FT/CNET, INPG-LSR, RENATER, 6WIND, LIP6 and LSIIT. The follow-up project @IRS++ (2001-2003) focused on
fixed mobile convergence, group communication and dynamic network services. |
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RNRT project (1998-2002) on networking using
satellite constellations, focusing on routing and end to end quality of
service support. Others partners: CNES, ENST, INT, LM2S, LIRMM, LIP6, Supelec, |
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DGA/MENERT collaboration project (1996-1998) (also
called Placebo) with Dassault Electronique,
LIP6 and LAAS. The goal was to experiment quality of service mechanisms (intserv/diffserv) to provide enhanced services for
Distributed Interactive Simulation applications (using FreePhone,
RendezVous and MiMaze)
over hybrid IP/ATM technologies. The experiments were done on Mirihade
(Multimedia Inforoutes Réseaux
Informatiques Haut Débit)
(first experimental platform for networking research in |
Industrial collaboration
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CIFRE contract (2007-2010) with UDcast on protocols, applications and infrastructure for
IP broadcast to mobile devices. |
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CIFRE contract (2003-2006) with STM on
Secured Large scale virtual environments. |
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Collaboration with Alcatel (2003) on TCP
performance in a hybrid satellite/terrestrial network, in the context of an
ESA study named Transat. |
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Collaboration with Hitachi Sophia Labs
(2001-2002) on the scalability of the udlr approach
to a large number of receivers for both routing and reliable transport
levels. Another collaboration (2003-2004) on efficient authentication
architecture focused on accelerating inter-domain roaming, keeping seamless
mobile secured Internet services. |
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Collaboration with CS Telecom (2000-2001) on
the support of quality of service in the Internet. |
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Collaboration with Eutelsat
(1996-1999) on support IP over unidirectional satellite links. Our major
achievement is an encapsulation mechanism to support IP protocols transparently
on unidirectional broadcast links. Standardization work with the IETF where
we were co-chairing the udlr working group produced
a proposed standard RFC 3077. Other participants to this work founded the UDcast company in 2000. |
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Collaboration with Laboratoires
d’Electronique Philips (1996-1997) on supporting
videoconferencing over hybrid wired and wireless networks. |
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Collaboration with NEC (1997-1998) on
videoconferencing applications over high speed wireless LANs. Application
level FEC integrated in the RendezVous application
was tested on a 25 Mbps wireless LAN card provided by NEC. |
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SToRIA is an “Autoroutes
de l’information” project (1996-1997) with
SGS-Thomson on testing collaboration tools on IP networks in an industrial
context. Our contribution consisted in adapting the white board tools Mscrawl to support shared visualization application. |
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Collaboration
project (1995) in the context of INRIA-Bull GIE Dyade
on IP Video Conferencing applications. |
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Contract with T-REGIE Renault (1988) on
Vehicle to vehicle communications in the context of the European Prometheus
project. |
Demonstration activities
Several
public demonstration of Internet Videoconferencing tools in the context
of: la science en fête, French
prime minister visit to INRIA in 1995, INTEROP 1993 and during the G7
summit in
Early Participation to the set-up of the French
MBone Multicast overlay (tunneling)
Network in 1992-1993.
National Collaboration activities
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GDR PRS |
Contributed to the GDR/PRS and Networking Task force launched by CNRS
(1992-1996) mainly on High Performance Protocols and Reliable Multicast
Communications with partners from LAAS, MASI and IRISA. The thematic school
RHDM (Réseaux Haut Débit Multimédia) was initiated in the context of the GDR/PRS. |
International Collaboration activities
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NSF project between INRIA and |
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Participation to the |
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Collaboration with AIT and the WIDE project (2004-2005) in the context
of a French government funded STIC Asia “Internet Nouvelle Génération” project. The first year workshop was
organized at INRIA Sophia Antipolis. |
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STIC |
Collaboration project (2007-2008) with ENSI ( |
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STIC AmSud |
Collaboration project (2008-2009) with U Diego Portales ( |
Standardization
activities
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Starting and co-chairing of the UDLR IETF working group (from December
1996 to August 2001). Other major participants: Hughes Research Labs, Jsat, Sony, |
Participation to conference program committees
Served in the following conferences as PC member: INFOCOM’06, CoNext’05,
Med-hoc-net’2003, NGC (99-2003), SAINT’2001, Networking’2000, ISCC’2000,
AFRICOM CCDC’98, ICCC’97, WOSBIS (97-99), CFIP (97-05), IDMS’96, Hipparch’95,
HPDC (94-96). Also served as PC co-chair of PfHSN'96 and
tutorial chair for Sigcomm'97. Member of the editorial board of the IEEE
Communications Surveys & Tutorials electronic journal, and of a special
issue of the TSI (Techniques et Sciences Informatiques) journal on the
topic Networks and protocols (in 2004).
Conference Organization
Served in the organizing committee of Hipparch’95, PfHSN’96, ISCC’2001. Organized the first French
Asian Workshop on Next Generation Internet (2004).
Reviewing activities
Reviewer of a large number of papers submitted to journals including
IEEE/ACM Transactions on Networking, IEEE Journal on Selected Areas in
Communications, Distributed Computing Journal, Computer Communications Journal,
Computer Networks, Internetworking, TSI, Annals of Telecommunications, etc.
Conference and summer schools tutorials
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EcoTel’98 |
Tutorial on TCP
over Satellite, December 98, |
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RHDM’98 |
Tutorial on
Satellite Networking, May 98, Giens. |
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CFIP’97 |
Tutorial on End
to end multicast transmission control, September 97, Liège. |
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ECMAST’97 |
Tutorial on Advanced Internet Protocols: Support of Audio and Video
applications over the Internet, May 97, |
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CFIP’96 |
Tutorial on Multimedia
Application over the Internet, October 96, |
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RHDM’96 |
Tutorial on Point
to |
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PCN’95 |
Tutorial on
Internet Architecture and Organization, October 95, |
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FORTE’95 |
Tutorial on High
Performance Protocol Architecture, October 95, |
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HPN’95 |
Tutorial on Point
to |
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RHDM’95 |
Tutorial on High
Speed Protocols, September 95, |
Selected Invited Presentations
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Participation to the
“Place de la Toile” program. More details. |
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Intimate’07 |
Presentation on Experimental Methodology for Networking Platforms. |
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CoNext’06 |
Panel presentation on Networking platforms and reproducible
experiments. |
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AIT |
Course on Group Communication in Wide Area Networks, Asian Institute
of Technology, December 2003, |
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Fête de l’Internet |
Panel presentation on Issues related to High Speed Networking in the
context of “La fête de l’Internet” organized at Cité des Sciences et de l’Industrie
in March |
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EMSST |
Two presentations on Multimedia Applications over the Internet at the “Amicale de l'Enseignement Militaire Supérieur
Scientifique et Technique” in 2002 and 2003. |
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UTLS’2000 |
Large audience presentation on Satellite Internet Protocol Performance at the “Université de tous les savoirs” conference cycle, September
2000, Paris. |
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Networking’00 |
Presentation on Dynamic Routing over Unidirectional Satellite Links,
Broad Band Satellite Networking Workshop, May 2000, |
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Cité des Sciences |
Internet Transmission via
Satellite, “La recherche en direct” conference
cycle, March 1999, Paris. |
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SCW-ESA |
Invited presentation at the Satellite Communications Workshop on IP
integration with Satellite Networks, March 1999, |
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UTC |
Invited seminar on Multicast Routing at |
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ENST |
Support of Audio
and Video applications over the Internet, June 1997. |
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WWW conference |
Panel presentation at the fifth WWW conference in |
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MIT LCS |
Invited seminar
on High Performance Protocol Architecture, July 1996. |
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ENSMSE |
High Speed
Protocols, at Ecole Nationale
Supérieure des Mines de St Etienne in February
1995. |
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ENST |
High Performance
Protocol Architecture, April 1994. |
Expertise activities
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2007 |
Participation to
the FIRE group activities for the definition of a Roadmap for Research on
Federated test-beds. |
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2007 |
Independent Expert
assisting the European Commission for the evaluation of IST FP7 projects. |
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2003 |
Independent
Expert assisting the European Commission for the evaluation of IST FP6
projects. |
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1999-2000 |
Independent Expert
assisting the European Commission for the evaluation of IST FP5 projects. |
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1996 |
Techno-Economical
Expertise for ANVAR |
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1995 |
Independent
Expert participating to the preparation of FP4 Work Programme. |
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1997 |
Independent Expert
assisting the European Commission for the evaluation of ACTS projects. |
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1998-2000 |
Expert acting as an evaluator in commission 3 of the French RNRT (Réseau National de Recherche en
Télécommunication). |
Selected development activities
Implementation
of the XTP protocol in user space, 1993.
Optimised
Implementation of transport level OSI protocols, 1989.
Implementation
of several protocol gateways for TCP, X.25 and OSI Internetworking, 1988.
Modification of the
Unix kernel to support real time applications, DEA
Internship, 1987.
Implementation
of an Image Memory for a Robotics Application, LIMSI, 1985.
Programming skills
Unix, Windows
Java, C, C++,
PASCAL, BASIC, FORTRAN
LISP, PROLOG,
Awards and distinctions
Best Class Average
in engineering studies (1981-1986).
Scholarship from
the French Government to do PhD studies in
Scientific Prize
CS2000 from the Communications and Systems in July 2000.
Languages
Arabic,
French and English.
Personal Information
Born in Beirut,
June 30th 1964, Married with three Children Sami, Maymouna and Houssam.
