Network Fault Model for Dependability Assessment of Networked Embedded Systems

This paper presents a network-based fault model for dependability assessment of distributed applications built over networked embedded systems. This fault model represents global failures in terms of wrong behavior of packet-based asynchronous data transmissions. Packets are subject to different fau...

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Bibliographic Details
Published in2008 IEEE International Symposium on Defect and Fault Tolerance of VLSI Systems pp. 54 - 62
Main Authors Fummi, F., Quaglia, D., Stefanni, F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Automata
Computational modeling
Embedded system
fault simulation
Libraries
networked embedded systems
Open systems
Protocols
SystemC
Wireless sensor networks
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ISBN0769533655
9780769533650
ISSN1550-5774
DOI10.1109/DFT.2008.21

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Summary:This paper presents a network-based fault model for dependability assessment of distributed applications built over networked embedded systems. This fault model represents global failures in terms of wrong behavior of packet-based asynchronous data transmissions. Packets are subject to different faults, i.e., drop, cut, bit errors, and duplication; these events can model either HW/SW failures of the networked embedded systems or problems in the channel among them. The paper describes 1) the proposed fault model in relation with existing ones, 2) its possible application scenarios, and 3) a SystemC tool for the simulation of both fault-free and faulty wireless sensor networks. Experimental results show the validity of the approach in the verification of communication protocols and its support to determine the optimal number of nodes in a wireless sensor network based on the IEEE 802.15.4 standard. Part of the software is available at http://sourceforge.net/projects/scnsl/.
ISBN:0769533655
9780769533650
ISSN:1550-5774
DOI:10.1109/DFT.2008.21