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Building Fault-Tolerant Embedded System Using Virtualization

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Recently virtualization has been widely adopted by various embedded systems. Virtualized embedded systems can fully enjoy many advantages of virtualization. On the other hand, it also complicates the overall structure of the system by introducing additional software layer called virtual machine monitor, which has a harmful effect on the continuing operation of the embedded system. In this paper, we first design a virtual machine monitor for embedded system including memory virtualization which exploits the MMU functionality of underlying microprocessor. We also propose a fault-tolerant embedded system on top of the virtualized embedded system using well-known software fault tolerance technique. By conducting performance evaluation studies, we show that the proposed system does not degrade the performance of the embedded system significantly, while making the system robust against errors.
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Keywords: Embedded System; Fault Tolerance; Virtualization

Document Type: Research Article

Affiliations: Department of Computer Science, Sangmyung University, Hongjimun 2, Jongno-gu, Seoul 03016, Korea

Publication date: November 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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