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RESEARCH
Main achievements of the project
In 2008, we continued our collaborative pursuits
internationally, particularly in Asia, through the
STIC 1 project with India, Korea and China. The
STIC Asie Tiny6 project made it possible to define
the IPv6 and sensor network theme. A day-long
tutorial on this theme was developed and
presented for the first time at the NCC2009
conference in Guwahati, India. We also published
a draft at the IETF 2 on the supression of the
Neighbor Discovery mechanism in sensor
networks.
We also established relations with National Ilan
University (NIU) in Taiwan through the PHC
ARAMI6 project. The goal is to study the creation
of services through an IMS architecture, taking
advantage of IPv6 functions, such as multihoming
management. We are studying the quality
of service side of things as well. Through this
project, we are also able to develop our work on
IPv6 integration, studying the possibility of using
the Softwires mechanism (which uses L2TP and
PPP protocols to offer an IPv6 access similar to
the real thing on an IPv4 network), which will soon
be published in the RFC (Requests for Comments)
at the IETF.
Additionally, 2008 gave us the opportunity to
develop our expertise in the levels of IMS
(TiSPAN), through our NextTV4All, Systermin@l
and ARAMI6 projects. This project is related to the
goals of PRATIC, particularly the NASS (Network
Attachment Subsystem) that we are working on,
in order to integrate the transition mechanisms
and the RACS (Resource Admission Control
Subsystem) for quality of service management in
the operator's and interoperator's network. We
are also looking at how to integrate non-IMS
equipment into the architecture, through the
Systermin@l project. This work requires thorough
knowledge of the architecture. We are working in
collaboration with the SERVAL anchor project on
aspects of service. We are also experts in the
Im@gin’lab on the IMS side of things.
network service providers (possibly with different
technologies) has just begun. This theme was also
the focus of an active collaboration at the
European level through the EuroNF network of
excellence. Furthermore, we continue to study
questions associated with the transport sector
and with congestion control within IP networks.
One area of focus is the performance of TCP and
SCTP protocols and their possible improvements
in specific contexts (WiMAX, very high throughput...).
A draft on this theme is currently under
discussion at IETF. We are also starting to address
the problem of congestion in the DTN context, as
part of Ahmed Ayadi's thesis on transport
protocols and energy consumption in sensor
networks and delay-tolerant networks.
Publications
Articles in peer-review journals
[1] Patrick Maillé, Laszlo Toka. Managing a peer-to-peer data storage
system in a selfish society. IEEE journal on selected areas in
communications, september 2008, vol. 26, n° 7, pp. 1295-1301
Finally, we continue to develop mathematical
studies on network performance, taking into
account non-cooperation between various users.
An ANR (Agence Nationale pour la Recherche)
project on the theme of competition between
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1) STIC : Information and communication sciences and technologies
2) IETF : Internet Engineering Task Force