NDLI: Quantitative Comparison of the Error-Containment Capabilities of a Bus and a Star Topology in CAN Networks

Content Provider	IEEE Xplore Digital Library
Author	Barranco, M. Proenza, J. Almeida, L.
Copyright Year	1982
Abstract	There has been an increasing interest in using star topologies in field-bus communications, e.g., in Time Triggered Protocol for SAE classC applications (TTP/C), FlexRay, or controller area network (CAN), due to increased fault resilience and potential error-containment advantages. In this context, an innovative CAN-compliant star topology, CANcentrate, has been developed, whose hub includes enhanced fault-treatment mechanisms. However, despite this interest toward stars, it is still necessary to quantify their real dependability benefits. For this purpose and for the particular case of CAN, this paper presents models for the dependability features of CAN and CANcentrate using Stochastic Activity Networks (SANs). It quantitatively compares their reliability and error-containment capabilities under permanent hardware faults. These models rely on assumptions that ensure that results are not biased toward CANcentrate, which, in some cases, is too detrimental for it. Thus, despite not reflecting the full CANcentrate potential, results quantitatively confirm the improvement of error-containment it achieves over CAN. Additionally, the way in which the nodes' ability to contain their own errors affects the relevance of using a star topology has been quantified. Although this paper refers to the case of CAN, conclusions regarding the justification of using a star topology depending on this ability can be extrapolated to other field-bus technologies.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	802
Ending Page	813
Page Count	12
File Size	468452
File Format	PDF
ISSN	02780046
Volume Number	58
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network topology Resilience Telecommunication network reliability Distributed control Control systems Permission Context Stochastic processes Hardware Stochastic systems topology Communication-system fault diagnosis communication-system reliability controller area network (CAN) protocol error containment fault tolerance field buses hub reliability modeling star Stochastic Activity Networks (SANs) system analysis and design
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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