Performance Comparisons of Flexible Time Triggered Ethernet and TTEthernet technologies for Space Launcher Networks

Eramo, Vincenzo; Fiori, Tiziana; Lavacca, Francesco G.; Valente, Francesco; Albano, Marta; Ciabuschi, Simone; Cavallini, Enrico

doi:10.1109/metroaerospace57412.2023.10189990

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…Network failures lead to production line downtime and result in significant economic losses. Although traditional Industrial Ethernet and fieldbus [ 4 , 5 ] solutions offer real-time and high reliability guarantees for data transmission, achieving interoperability among different systems remains a challenge [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced FRER Mechanism in Time-Sensitive Networking for Reliable Edge Computing

Hu,

Cai,

Wang

et al. 2024

Sensors

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Time-Sensitive Networking (TSN) and edge computing are promising networking technologies for the future of the Industrial Internet. TSN provides a reliable and deterministic low-latency communication service for edge computing. The Frame Replication and Elimination for Reliability (FRER) mechanism is important for improving the network reliability of TSN. It achieves high reliability by transmitting identical frames in parallel on two disjoint paths, while eliminating duplicated frames at the destination node. However, there are two problems with the FRER mechanism. One problem is that it does not consider the path reliability, and the other one is that it is difficult to find two completely disjoint path pairs in some cases. To solve the above problems, this paper proposes a method to find edge-disjoint path pairs considering path reliability for FRER in TSN. The method includes two parts: one is building a reliability model for paths, and the other one is computing a working path and a redundant path with the Edge-Disjoint Path Pairs Selection (EDPPS) algorithm. Theoretical and simulation results show that the proposed method effectively improves path reliability while reducing the delay jitter of frames. Compared with the traditional FRER mechanism, the proposed method reduces delay jitter by 15.6% when the network load is 0.9.

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Section: Introductionmentioning

confidence: 99%

Enhanced FRER Mechanism in Time-Sensitive Networking for Reliable Edge Computing

Hu,

Cai,

Wang

et al. 2024

Sensors

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Proposal and Investigation of a Lite Time Sensitive Networking Solution for the Support of Real Time Services in Space Launcher Networks

Fiori,

Lavacca,

Valente

et al. 2024

IEEE Access

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Most launcher networks are based on proprietary buses such as MIL-STD-1553B whose low bandwidth limits the introduction of new services of suitable characteristics. Ethernet technology, because of its low cost and high performance, has been considered an excellent candidate for its use in launcher networks. The real time Ethernet solutions based on the Time Sensitive Networking (TSN) standards seem the most suitable because of its multi-vendor product characteristics. In this paper we propose a real time Ethernet solution for aerospace applications in which negligible jitter services has to be guaranteed. The proposed solution is based on the following TSN standards: IEEE 802.1AS/ASrev as synchronization protocol and 802.1Qbv-2015 for deterministic traffic scheduling. To improve both the bandwidth effective and the frame delay the solution is also based on a change in the management of the Priority Code Point field in IEEE 802.1Q standard. The optimal scheduling problem is formulated so as to minimize the makespan, defined as the time needed to deliver all of the messages of an elementary cycle. The problem has been resolved with the CPLEX solver and the proposed solution has been evaluated in terms of both delay and bandwidth effective by comparing its performance with the TTEthernet, FTTEthernet benchmark solutions. The obtained results in a real traffic scenario characterized by the set of messages of the VEGA launcher show how the proposed solution allows for the same performance of TTEthernet, i.e., the solution of proprietary and real-time Ethernet with better performance.

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Performance Comparisons of Flexible Time Triggered Ethernet and TTEthernet technologies for Space Launcher Networks

Cited by 2 publications

References 18 publications

Enhanced FRER Mechanism in Time-Sensitive Networking for Reliable Edge Computing

Enhanced FRER Mechanism in Time-Sensitive Networking for Reliable Edge Computing

Proposal and Investigation of a Lite Time Sensitive Networking Solution for the Support of Real Time Services in Space Launcher Networks

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