AFDX simulation based on TTEthernet model under OMNeT++

摘要

The new generations of aircraft embark, growingly, avionics systems and functions to increase passengers' security and comfort. Therefore, a huge increase in data traffic is generated. Higher rates with more interconnections become necessary. However, Conventional avionics communications busses cannot meet these new needs. They are prompting avionics manufacturers (Airbus and Boeing) to install on their aircraft high speed communication networks based principally on switched Ethernet technology. Currently, the communication architecture of the latest aircraft generations is based on the AFDX (Avionics Full Duplex Switched Ethernet) backbone interconnected principally to data peripheral bus. The aim of our paper is to study and evaluate these new network architecture real-time performances. We are focused on the assessment based on simulation approach using OMNet++ simulator. We propose an illustrative example of the AFDX network that already exists on the literature. Firstly, the AFDX network end-to-end delay is determined by simulation. Then, we analyze and compare our results with other works. Thus, the AFDX performance is verified and validated through the simulation.