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Ahlem Mifdaoui

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Research Projects

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 EDEN (2020-2023)

The aim of EDEN project is to evaluate and design the building blocks of an embedded deterministic Ethernet architecture compliant with the needs of a modular, standardized and multi-industry network system communications (automotive, aeronautics or space) based on Time-Sensitive Networking standard

  • Partners
    ISAE, IRT and many industrial and academic partners from Toulouse and Bordeaux
  • Participants
    Ahlem Mifdaoui, Ludovic Thomas
 FACTORING (2019-2023)

The aim of FACTORING project is to design and validate a TSN-compliant network based on Giga Ethernet to handle real-time applications with mixed safety levels in the context of Industry 4.0

 ECOA Project (2019-2020)

The aim of ECOA project is to optimise the real-time architecture of an embedded system using ECOA model.

  • Partners
    ISAE and Dassault Aviation
  • Participants
    Ahlem Mifdaoui, Jean-Charles Chaudemar and Anh Toan BUI LONG
 IREHDO2 (2015-2018)

The aim of IREHDO2 project is to design and validate a backbone network for avionics systems based on Giga Ethernet to handle different avionics applications with mixed safety levels.

 AERORING(2013-2015)

The aim of AeroRING project is to design and validate a communication network for critical systems based on daisy chaine Giga Ethernet, incorporating detection and error correction mechanisms and having a certification level DAL C.

 WoPANets (Worst Case Performance Analysis of Embedded Networks) (2012-2014)

The aim of WOPANets Tool is to offer an ergonomic interface for the designer to describe graphically the network and the circulating traffic and to analyze the worst-case performance using the Network Calculus theory. Furthermore, to cope with this large design space, optimization analyses are integrated to reduce the exploration space size and to give optimal solutions according to the designer criteria (costs, temporal behavior, safety…).

 OMCEN (Optimization of Multi-Cluster Embedded Networks) (2011-2014)

The objective of this project is to allow the designer to : (i) analyze the performance of end to end communication architecture based on heterogeneous embedded networks ; (ii) to optimize the performances of communication architectures to meet the system requirements through the design of specific gateways. Realistic avionics architecture, based on AFDX network as a backbone and CAN or MIL-STD1553B technologies as sensors/actuators networks, is considered to validate these proposals.

 APeNISS (2011-2014)

The aim of this project is to define and optimize a design methodology for embedded systems to enhance the performances while reducing integration and maintenance costs. This methodology is applied in the specific case of wireless technologies integration for critical avionics applications, named « fly by wireless ».

 SyMADE (2010-2012)

The aim of this project is to design and evaluate the performances of a new sensors/actuators network for train and aircraft in order to improve modularity, scalability and simplify wiring, compared to existing networks, while guaranteeing determinism and availability.

 ADCN+(2008-2009)

The AFDX network (Avionics Full Duplex switched Ethernet), as used on the A380, the 400M and the A350, is based on switched Ethernet technology, adapted to avionics standard in order to guarantee the safety and availability of the network for critical avionics systems. One of the major features of the AFDX network is to guarantee the isolation between the different traffic flows due to Virtual Links concept and Traffic policers within the switches. These AFDX switches are expensive and complex components to implement. The objective of this project is to propose alternative network solutions for a backup network (used in case of a major fault of the main AFDX network), based on Ethernet interconnection elements that are simpler than the AFDX switches, and providing deterministic guarantees. The proposed networks are evaluated on a performance analysis perspective, and applied to a typical A380 case.

 MARTIAC (2008-2009)

In order to address the increasing complexity of embedded applications, the current solution consists in increasing the number of computers to have more resources and to add new functions. However, this approach leads to an increasing amount of exchanged data and an inherent complexity of system interconnects that make the real time guarantees difficult to assess. Hence, one of the main challenges is to rethink the architecture of embedded computers to improve the performances of new generation avionics applications while respecting certification constraints. The aim of this project is to define and compare some alternative architectures based on multiprocessors for avionics applications.

 ASTAC-AMIL (2007-2008)

Performance evaluation of current civil avionics technologies and architectures for military avionics applications in terms of QoS, Reliability and integration costs.

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