Design of fault tolerant majority voter for TMR circuit in QCA

Abstract

The majority voter plays the core role in the Triple-modular redundancy (TMR) based fault tolerant scheme. This work targets to implement a novel fault tolerant structure of the majority voter for the implementation of TMR using Quantum-dot cellular automata (QCA), a viable alternative nanotechnology to current CMOS VLSI. The proposed fault-tolerant voter circuit itself can tolerate a fault and give error free output by improving the overall system's reliability.