Cited 2 time in webofscience Cited 5 time in scopus

Guaranteeing the End-to-End Latency of an IMA System with an Increasing Workload

Title
Guaranteeing the End-to-End Latency of an IMA System with an Increasing Workload
Authors
Nam, Min-YoungLee, JaemyounPark, Kyung-JoonSha, LuiKang, Kyungtae
DGIST Authors
Park, Kyung-Joon
Issue Date
2014-06
Citation
IEEE Transactions on Computers, 63(6), 1459-1472
Type
Article
Article Type
Article
Keywords
AvionicsElectric Network TopologyEnd-to-End CommunicationEnd-to-End LatencyEnvironmental MonitoringIndividual ComputingIntegrated Modular Avionics (IMA)Real-Time SwitchSwitching AlgorithmsSwitching CircuitsSystem ArchitecturesVirtual Integration
ISSN
0018-9340
Abstract
New features are often added incrementally to avionics systems to minimize the need for redesign and recertification. However, it then becomes necessary to check that the timing constraints of existing as well as new applications are met. We facilitate these checks by introducing a new data switch that bounds the latency of end-to-end communications across a network. This switch runs a clock-driven switching algorithm that is throughput-optimal with a bounded worst-case delay for all feasible traffic. We propose associated heuristics that determine whether the timing constraints of an integrated modular avionics (IMA) system network that uses this switch are met, even if new features have caused traffic to increase, and then search for alternative network configurations if necessary. Virtual integration is used to make a combined analysis of the worst-case delay in the network and the local buses of individual computing modules. This analysis considers the shared network topology, local hardware architectures, and specified IMA configurations. Our approach can be used by a system architect as an effective method for quickly determining which possible system architectures should be pursued to meet timing constraints, and it allows the cascading effects of changes to be tracked and managed. We demonstrate how these heuristics work through an example in which changes are made to an environmental monitoring facility within an avionics system that uses our switch. © 2013 IEEE.
URI
http://hdl.handle.net/20.500.11750/5254
DOI
10.1109/TC.2012.300
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Park, Kyung Joon CSI(Cyber-Physical Systems Integration) Lab
  • Research Interests Design of Wireless Network for Cyber-Physical System; 무선 센서 네트워크; 강인 무선 네트워크
Files:
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Collection:
Information and Communication EngineeringCSI(Cyber-Physical Systems Integration) Lab1. Journal Articles


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