2019
DOI: 10.3390/electronics8030332
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A Fault Tolerant Voter for Approximate Triple Modular Redundancy

Abstract: Approximate Triple Modular Redundancy has been proposed in the literature to overcome the area overhead issue of Triple Modular Redundancy (TMR). The outcome of TMR/Approximate TMR modules serves as the voter input to produce the final output of a system. Because the working principle of Approximate TMR conditionally allows one of the approximate modules to differ from the original circuit, it is critical for Approximate TMR that a voter not only be tolerant toward its internal faults but also toward faults th… Show more

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Cited by 25 publications
(20 citation statements)
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“…The voter unit produces the output of the main system based on the majority votes. ATMR can be developed using approximate modules for all three modules of TMR system [14]. The output of the approximate modules differs from the original circuit for some of the input vectors, which helps in complexity reduction.…”
Section: Previous Studies On Fault Tolerance Based On Hardware Redundmentioning
confidence: 99%
See 2 more Smart Citations
“…The voter unit produces the output of the main system based on the majority votes. ATMR can be developed using approximate modules for all three modules of TMR system [14]. The output of the approximate modules differs from the original circuit for some of the input vectors, which helps in complexity reduction.…”
Section: Previous Studies On Fault Tolerance Based On Hardware Redundmentioning
confidence: 99%
“…In [14], a novel fault tolerant voter unit with superior electrical features designed using pass transistors and qaudded transistor redundancy is presented. The use of pass transistors aided in designing the voter unit with reduced number of transistors which causes minimum voter internal faults.…”
Section: Previous Studies On Fault Tolerance Based On Hardware Redundmentioning
confidence: 99%
See 1 more Smart Citation
“…These works have shown good results by compensating the costs of fault tolerance techniques with the speed-up obtained through AC. However, most of the works presented are at the circuit level [10,[31][32][33][34] or require special architecture [9,29,35,36], so hardware modifications are still necessary. This means that those works are not suitable for COTS processors.…”
Section: Fault Tolerance With Approximate Computing Techniquesmentioning
confidence: 99%
“…Reduced precision replicas can also be used in a dual manner, with the lower cost data-path working in a higher supply voltage domain and providing a highly reliable reference [8]. Other works improved reliability by increasing the resilience of the voting circuits within the TMR, such as the self checking voting circuits [9], adaptable bit-width voter [10], or employing dedicated voters for approximate TMR [11].…”
Section: Introductionmentioning
confidence: 99%