Contact and Thesis Director: Ahlem Mifdaoui
Context and Motivations
The complexity of the communication architecture in aerospace applications continues to grow due to the increase in the number of interconnected subsystems and in the amount of exchanged data. In order to meet these emerging needs, current architectures are mainly hierarchical with a high speed backbone network and low speed sensor / actuator networks. These architectures typically lead to significant integration costs due to their heterogeneity, as well as increasing complexity in proving the performance and reliability requirements of aerospace applications. Ethernet Time Sensitive Networking (TSN) technologies are then envisioned as the main solution to homogenize the communication architecture; thus improving the performance and reliability of aerospace applications.
Objective and main steps
The main objective of this thesis is to analyze the performance of TSN technologies in the context of aerospace applications to validate their use under the main aerospace constraints. Here are the main identified steps to achieve this aim:
Analysis of the TSN standard vs the requirements of aerospace applications: starting from the requirements of aerospace applications, eg, determinism, reliability and cost, and case studies specified by the community in the field (detailed in here), start with qualitative analysis of the different TSN mechanisms in order to select the most suited ones to this context.
Performance analysis of TSN solutions: for aerospace applications, real-time and reliability constraints must be guaranteed. However, the use of TSN technologies can increase communication latencies due to the used scheduling mechanisms. Therefore, an appropriate proof of determinism should be considered. One of the methods widely used to validate certification constraints is the Network Calculus. The models of the various Network Calculus based TSN mechanisms must be derived in order to allow a global analysis of the communication architecture.
Validation on industrial case studies: after the qualitative and quantitative analysis of the various TSN mechanisms selected for aerospace applications, performance validation on industrial case studies is necessary to consolidate the choices of the mechanisms considered.
TSN, aerospace, performance analysis, reliability, Network Calculus
Informations & Profile:
- Possibility to start with an internship from March 2022
- PhD thesis from October 2022 within an industrial
- Profile : Master 2 ou ingénieur in computer science/networks/embedded systems