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2006•Unpublished venueRequires access

Improving the Fault Tolerance of a Computer System with Space-Time Triple Modular Redundancy.

Wei Chen, Rui Gong, Fang Liu, Kui Dai, Zhiying Wang

Open publisher page 7 citations

Abstract

Abstract- Triple Modular Redundancy is widely used in dependable systems design to ensure high reliability against soft errors. Conventional TMR is effective in protecting sequential circuits but can’t mask soft errors in combinational circuits. A new redundancy technique called the Space-Time Triple Modular Redundancy is presented in this paper, which improves the soft error tolerance of the combinational circuit. This paper demonstrates the usefulness of the Space-Time Triple Modular Redundancy design in a special case study. The delay overhead and the fault tolerance of Space-Time Triple Modular Redundancy are compared with that of the conventional Triple Modular Redundancy. Results show that Space-Time Triple Modular Redundancy is more effective than the conventional Triple Modular Redundancy.

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What this paper is about

Abstract- Triple Modular Redundancy is widely used in dependable systems design to ensure high reliability against soft errors. Conventional TMR is effective in protecting sequential circuits but can’t mask soft errors in combinational circuits. A new redundancy technique called the Space-Time Triple Modular Redundancy is presented in this paper, which improves the soft error tolerance of the combinational circuit. This paper demonstrates the usefulness of the Space-Time Triple Modular Redundancy design in a special case study. The delay overhead and the fault tolerance of Space-Time Triple Modular Redundancy are compared with that of the conventional Triple Modular Redundancy. Results show that Space-Time Triple Modular Redundancy is more effective than the conventional Triple Modular Redundancy.

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Available abstract

Abstract- Triple Modular Redundancy is widely used in dependable systems design to ensure high reliability against soft errors. Conventional TMR is effective in protecting sequential circuits but can’t mask soft errors in combinational circuits. A new redundancy technique called the Space-Time Triple Modular Redundancy is presented in this paper, which improves the soft error tolerance of the combinational circuit. This paper demonstrates the usefulness of the Space-Time Triple Modular Redundancy design in a special case study. The delay overhead and the fault tolerance of Space-Time Triple Modular Redundancy are compared with that of the conventional Triple Modular Redundancy. Results show that Space-Time Triple Modular Redundancy is more effective than the conventional Triple Modular Redundancy.

Key concepts: Triple modular redundancy, Redundancy (engineering), Modular design, Fault tolerance, Soft error, Computer science, Combinational logic, Embedded system

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