Towards a mixed NoC/AFDX architecture for avionics applications - Réseaux, Mobiles, Embarqués, Sans fil, Satellites Accéder directement au contenu
Communication Dans Un Congrès Année : 2018

Towards a mixed NoC/AFDX architecture for avionics applications

Résumé

An heterogeneous network, where a switched-Ethernet backbone, as AFDX, interconnects several End Systems based on Network-On-Chip (NoC), is a promising candidate to build new avionics architecture. However, current avionics End System includes many functions, as performing a traffic shaping for each Virtual Link (VL) and scheduling the output frames in such a way the jitter on each VL is bounded. This paper describes how the NoC implements these functions in order to compute the worst-case traversal time (WCTT) of avionics frames on a NoC to reach the AFDX network. Besides, we illustrate the problem of guaranteeing a bounded jitter at the output of a NoC. We show that the existing mapping strategies present some limitations to reduce the congestion on the outgoing I/O flows (i.e. going from the NoC to the AFDX network) and so do not reduce the jitter on a given VL. We propose an extended mapping approach which considers the outgoing I/O flows. Experimental results on realistic avionics case studies show significant improvements of the jitter value.
Fichier principal
Vignette du fichier
Abdallah_21539.pdf (1.25 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02001631 , version 1 (31-01-2019)

Identifiants

Citer

Laure Abdallah, Jérôme Ermont, Jean-Luc Scharbarg, Christian Fraboul. Towards a mixed NoC/AFDX architecture for avionics applications. 13th International Workshop on Factory Communication Systems (WFCS), May 2017, Trondheim, Norway. pp.1-10, ⟨10.1109/WFCS.2017.7991950⟩. ⟨hal-02001631⟩
40 Consultations
49 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More