Comparative analysis of next generation aircraft data networks


Kultur O. R., BİLGE H. Ş.

19th IEEE International Conference on Smart Technologies, EUROCON 2021, Lviv, Ukraine, 6 - 08 July 2021, pp.317-320 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/eurocon52738.2021.9535577
  • City: Lviv
  • Country: Ukraine
  • Page Numbers: pp.317-320
  • Keywords: avionics, AFDX, TTEthernet, networks, performance analysis, latency, jitter, bandwidth, OMNET plus
  • Gazi University Affiliated: Yes

Abstract

© 2021 IEEE.Aircraft have many sensors and modules scattered throughout their fuselage. Due to the ever-increasing sensor load (radar, electronic warfare, radio, camera, etc.), aircraft need more bandwidth and higher broadband communication backbones. Legacy protocols such as ARINC-429 and MIL-STD-1553 used in the communication of these modules are insufficient to meet the increased bandwidth requirements of today's aircraft. However, these legacy networks are highly reliable and deterministic, as avionics systems require. For this reason, different technologies have been developed without losing their quality of service and suitability for critical systems. Avionics Full-Duplex Switched Ethernet (AFDX) protocol, a special application of ARINC-664 Part 7, patented by Airbus, has come to the fore in recent years. Another prominent solution is the Time-Triggered Ethernet (TTEthernet) protocol, patented by TTTech. This paper compares these two protocols from the avionics perspective with a simulation model in OMNET++ and outlooks the new generation avionics networks.