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N-modular redundancy (NMR) is a generic fault tolerance scheme that is widely used in safety–critical circuit/system designs to guarantee the correct operation with enhanced reliability. In passive NMR, at least a majority (N + 1)/2 out of N function modules is expected to operate correctly at any time, where N is odd. Apart from a conventional realization of the NMR system, it would be useful to...
This article presents a new distributed minority-cum-majority voting based redundancy (DMMR) scheme that is scalable and has the ability to tolerate multiple function module faults/failures. In comparison with 5-tuple, 7-tuple, and 9-tuple versions of the N-modular redundancy scheme, the proposed DMMR scheme whilst being equally fault-tolerant reports respective improvements in design metrics (i.e...
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