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Developing Predictable Time-Sensitive Distributed Avionics Systems

Publication Type:

Conference/Workshop Paper


Aerospace Technology Congress 2019


We propose to develop innovative techniques to support an efficient development-environment for avionics applications that require high-bandwidth and low-latency onboard communication. Our techniques will support modelling, analysis, configuration and optimization of the distributed avionics functions that utilize a safety critical high-performance onboard network as the backbone.Much of the innovation in the avionics domain can be attributed to the advancement in computer-controlled functionality. Novel functionality is often data intensive, computation exhaustive, communication demanding and time sensitive, which requires massive computational power and high-bandwidth real-time communication. Such performance requirements, on both performance and timeliness, are expected to increase driven by contemporary and future avionics architectures and applications.While there is a lot of research done to meet the challenges of computational requirements, relatively small efforts have been spent in dealing with the challenges of supporting the communication requirements. Some of the communication requirements include support for strict low-latency time-triggered traffic, event-triggered traffic and, at the same time, support for best-effort traffic, resource reservation for different types of traffic, for efficient resource utilization, and clock synchronization. A holistic development technology, supporting modelling, timing predictability analysis, configuration, deployment and execution for avionics applications that support the above requirements is still missing. The state of the art mostly focuses on Ethernet-based communication protocols that do not fully support these requirements, such as AFDX.


author = {Mohammad Ashjaei and Masoud Daneshtalab and Saad Mubeen and Mikael Sj{\"o}din},
title = {Developing Predictable Time-Sensitive Distributed Avionics Systems},
month = {May},
year = {2019},
booktitle = {Aerospace Technology Congress 2019},
url = {}