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Applying Trajectory approach for computing worst-case end-to-end delays on an AFDX network

Ning Hu, Tangqi Lv, Ning Huang
2011 Procedia Engineering  
Up to now, this analysis is done thanks to the Network Calculus method and the Trajectory approach. This paper analyses the worst-case end-to-end delays of an AFDX avionics network.  ...  As a new generation of Aircraft Data Network, AFDX is a kind of high real-time system, and the worst-case end-toend transmission delay analysis on it has been a major concern.  ...  The Trajectory approach is a new method for the analysis of transmission delays. Henri et al firstly applied this approach on an AFDX network, and get better upper bounds of end-to-end delays.  ... 
doi:10.1016/j.proeng.2011.08.480 fatcat:sbkoo3aolja6vgpfmlb7nwqdva

Applying Trajectory approach with static priority queuing for improving the use of available AFDX resources

Henri Bauer, Jean-Luc Scharbarg, Christian Fraboul
2011 Real-time systems  
This paper shows how the worst-case delay analysis of an AFDX network can be improved using an optimized Trajectory approach.  ...  This approach, which implements static priority QoS policies, provides bound needed for deterministic avionics flows (high priority) and allows addition of (lower priority) non avionics flows.  ...  Main features of the Trajectory approach applied to AFDX are summarized and illustrated in Sections 3.1 and 3.2. The optimization of the Trajectory approach computation is presented in Section 3.3.  ... 
doi:10.1007/s11241-011-9142-9 fatcat:qkxjtiwasfacrls7ov46z7tupe

Verification and Validation Framework for AFDX Avionics Networks

Javier Villegas, Sergio Fortes, Vicente Escano, Carlos Baena, Benjamin Colomer, Raquel Barco
2022 IEEE Access  
This is evaluated in comparison with network calculus and bibliography performance estimation approaches, demonstrating its accuracy and capabilities.  ...  In this context, the present work proposes and develops an evaluation framework for avionics networks in order to support the verification and validation (V&V) procedures of the communication system before  ...  In the first place, the optimization of AFDX networks is an important topic for the optimization of the network topology that impacts in the form of a reduction of equipment and aircraft Size Weight and  ... 
doi:10.1109/access.2022.3184329 fatcat:6w5t26elqjhlxahv5bwasy6rsa

Interconnection Optimization for Multi-cluster Avionics Networks

H. Ayed, A. Mifdaoui, C. Fraboul
2013 2013 25th Euromicro Conference on Real-Time Systems  
The increasing complexity and heterogeneity of avionics networks make resource optimization a challenging task.  ...  In contrast to many previous approaches pursuing the optimization of traffic-source mapping and backbone network analysis, our work presented herein mainly focuses on the optimization of interconnection  ...  For avionics applications, many methods have been investigated to analyze the AFDX features and to prove the communication determinism, such as Network Calculus in [14] , trajectory approach in [9]  ... 
doi:10.1109/ecrts.2013.25 dblp:conf/ecrts/AyedMF13 fatcat:cavqspxiabbuvdc5qemvtzuioi

Work in progress paper: pessimism analysis of network calculus approach on AFDX networks

Aakash Soni, Xiaoting Li, Jean-Luc Scharbarg, Christian Fraboul
2017 2017 12th IEEE International Symposium on Industrial Embedded Systems (SIES)  
Thus our goal is to propose a generic approach for pessimism evaluation of worst-case delay analysis of real-time switched Ethernet networks. This paper is a first step towards this goal.  ...  existing pessimism evaluation are specific to a given service discipline and/or an applicative context (FIFO scheduling of avionic flows in [1]).  ...  It has been proposed for worst-case backlog and delay analysis in networks and it has been applied to avionics networks [3] , wireless sensor networks [4] , networks on chip [5] and server on Internet  ... 
doi:10.1109/sies.2017.7993380 dblp:conf/sies/SoniLSF17 fatcat:k4uxdtpijnevlgcxs4lge36egm

Performance Evaluation on Packet Transmission for Distributed Real-time Avionics Networks Using Forward End-to-End Delay Analysis

Qingfei XU, Xinyu YANG
2021 Transactions of the Japan Society for Aeronautical and Space Sciences  
computed and the network performance evaluated.  ...  The experiments demonstrate that this approach achieves a more accurate evaluation of transmission performance than the Network Calculus approach.  ...  The authors would like to thank Zhangjin Li, Jizhong Liu and his research team for their inspirational discussions.  ... 
doi:10.2322/tjsass.64.1 fatcat:lcudzpuepbcdpojphgu6n6vlra

Methods and Tools for the Temporal Analysis of Avionic Networks [chapter]

Jean-Luc Scharbarg, Christian Fraboul
2010 New Trends in Technologies: Control, Management, Computational Intelligence and Network Systems  
This chapter summarizes the assumptions of the AFDX network technology and gives an overview of the different approaches which are used for the temporal analysis of such networks, i.e. the three approaches  ...  At least three approaches have been proposed in order to compute a worst-case bound for each communication flow of the avionic applications on an AFDX network configuration.  ...  Main features of the Trajectory approach applied to AFDX are summarized and illustrated in Sections 6.1 and 6.2.  ... 
doi:10.5772/10404 fatcat:xq7eyadrlneqvg3wf4ddoclmme

Guest Editorial Special Section on Real-Time and (Networked) Embedded Systems—II

Thomas Nolte, Roberto Passerone
2010 IEEE Transactions on Industrial Informatics  
The contribution of this paper is the optimization of a trajectory approach in the context of network calculus for worst-case end-to-end temporal delay computation of AFDX networks.  ...  In the following, these two papers are presented with more details: The paper "Improving the Worst-Case Delay Analysis of an AFDX Network Using an Optimized Trajectory Approach" presents how network calculus  ... 
doi:10.1109/tii.2010.2078931 fatcat:jyinh7o5gbdtbgsglt2sylkeua

Optimal Configuration of Virtual Links for Avionics Network Systems

Dongha An, Kyong Hoon Kim, Ki-Il Kim
2015 International Journal of Aerospace Engineering  
Finally, we prove that the proposed schemes are superior to general approach in the aspects of speed and required bandwidth in AFDX networks.  ...  As the bandwidth and scalability constraints become important design concerns in airborne networks, a new technology, called Avionics Full Duplex Switched Ethernet (AFDX), has been introduced and standardized  ...  In [7] , they applied network calculus, queuing networks simulation and model checking into evaluating bounding end-to-end delays on AFDX networks.  ... 
doi:10.1155/2015/329820 fatcat:4qmyjmzcbfclxhrrkyho77casa

Reliability Enhancement of Redundancy Management in AFDX Networks

Meng Li, Guchuan Zhu, Yvon Savaria, Michael Lauer
2017 IEEE Transactions on Industrial Informatics  
ACKNOWLEDGMENT The authors thank the Editor-In-Chief, the Associate Editor, and the anonymous reviewers for their constructive comments, which helped to improve the quality and the presentation of this  ...  This work was supported in part by CSC, NSERC-CRIAQ CRD project AVIO402, MITACS Acceleration Quebec program, MDEIE-CRIAQ Quebec-China project, and the industrial partners Thales Canada Inc. and Bombardier  ...  In Section IV two approaches are developed to enhance the reliability of RM. In Section V, a case study is carried out to validate the developed approaches and to evaluate the obtained performance.  ... 
doi:10.1109/tii.2017.2732345 fatcat:tvpmw52v4nbtnh5jrqtf6d5eaq

Communications for Integrated Modular Avionics

Richard L. Alena, John P. Ossenfort, Kenneth I. Laws, Andre Goforth, Fernando Figueroa
2007 2007 IEEE Aerospace Conference  
Finally, a laboratory evaluation defines performance metrics and test protocols and summarizes the results of AFDX network tests, allowing identification of design issues and determination of ASN subsystem  ...  In the event of failures, the software and network can perform complex reconfigurations very quickly, resulting in a very robust system.  ...  Finally, a laboratory evaluation defines performance metrics and test protocols and summarizes the results of AFDX network tests, allowing identification of design issues and determination of ASN subsystem  ... 
doi:10.1109/aero.2007.352639 fatcat:vzqzyh32hrevrmah525huckgzy

A Probabilistic Analysis of End-To-End Delays on an AFDX Avionic Network

Jean-Luc Scharbarg, FrÉdÉric Ridouard, Christian Fraboul
2009 IEEE Transactions on Industrial Informatics  
AFDX (Avionics Full Duplex Switched Ethernet, developed for the Airbus A380 represents a major upgrade in both bandwidth and capability.  ...  The two approaches have been developed in the context of an industrial AFDX network configuration.  ...  Multi-hops flow transformation Example of an evaluation In this section, the stochastic network calculus approach is applied to the network configurations evaluated by the simulation approach in the  ... 
doi:10.1109/tii.2009.2016085 fatcat:vlnty2zi7nbrtmjbkp73uel4py

Design of Avionics Network Architecture under a Reliability Constraint

Thanakorn Khamvilai, John B. Mains, Louis Sutter, Aqib Syed, Philippe Baufreton, Francois Neumann, Eric Feron
2021 IEEE Transactions on Aerospace and Electronic Systems  
Reliability is an important aspect of operating safety-critical applications of networked systems, such as in avionics. In order to ensure sufficient reliability, one approach is to apply redundancy.  ...  Finally, the method is illustrated on a small example network and a larger network of the A350 avionics architecture.  ...  Thus, the AFDX network, which is applied to modern aircraft like A350, is the sole focus of this paper.  ... 
doi:10.1109/taes.2021.3134750 fatcat:wi32wb7atbdcpgbzxvt6brnnzi

Approximating WCRT through the aggregation of short simulations with different initial conditions: application to TSN

Patrick Keller, Nicolas Navet
2022 Proceedings of the 30th International Conference on Real-Time Networks and Systems  
We evaluate the optimization potential of this simple approach on several realistic network configurations by comparing long simulations to aggregated short simulations, with and without synchronized node  ...  Results from this line of work can be used to estimate the pessimism of schedulability analyses and verify systems for which no analysis is available.  ...  from medium-size AFDX avionics networks [3] (see Figure 3 )).  ... 
doi:10.1145/3534879.3534886 fatcat:7p4j6mylujcfjfnw3ytl2lhtvq

Determinism Enhancement of AFDX Networks via Frame Insertion and Sub-Virtual Link Aggregation

Meng Li, Michael Lauer, Guchuan Zhu, Yvon Savaria
2014 IEEE Transactions on Industrial Informatics  
AFDX is a standard proposed to implement deterministic networks by providing predictable performance guarantees.  ...  Experiments are carried out and the reported results confirm the validity and applicability of the developed approaches.  ...  The theoretical methods, including network calculus [2] - [6] , trajectory approach [7] - [11] and response time analysis [12] are applied to the worst-case transmission delay analysis.  ... 
doi:10.1109/tii.2014.2315441 fatcat:lbl4q35lpngy5dgoo53zzv47jq
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