Support of Internet protocol in GSM networks

                                    Hassam Afifi

                                 ENST Bretangne and 
                          INRIA Sophic Antipolis (France)

The goal of this work is to propose an efficient infrastructure for the
transport of IP on top of Cellular Global systems like the GSM, UMTS and D-AMPS
in the USA.

After a brief introduction of the context (global public cellular networks), I
explain the motivation behind the introduction of a unique data network
infrastructure underneath cellular networks.

I give the motivation for IPv6 in general and for mobile-ipv6 in particular. I
explain then the problems that have to be solved in the field of header
compression, error recovery and mobility management and the state of the work
in this field in the team. I show the current state of advance of this work and
finally , I explain the collaborations on the global prototype with software
radio components and low bit codecs provided by other teams in the project.

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Hossam Afifi is assistant professor at ENST Bretagne, and researcher in INRIA
Sophia Antipolis (France).

He has a B.Sc from Cairo University in 86, a M Sc. in Computer Science from
University of Nice in INRIA Research Lab. in 89.

He obtained his Ph.D. from INRIA in 93 in the usage of Routing techniques for
optimizing X.400 Mail delivery with C. Huitema (advisor)

He spent 6 months Post-Doc. in Washington University in St. Louis with Prof.
Guru Parulkar on ATM host interfaces.

Since 93 he is assistant professor in the ENST Bretagne (Rennes-France).

Research interests are : Mobile IPv6 for GSM like networks, Optimization of
Voice transport on the Internet in presence of losses and low bit rate
transmission. He has two drafts in the ietf for mobility of IPv6 and transition
of v4 to v6 protocols in the internet.





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