Evaluating the Fault Tolerance of Stateful TMR

Module redundancy is often used in the construction of reliable systems. Triple Module Redundancy (TMR) is a method for improving reliability through module redundancy, although it does not give the correct results when two out of three modules fail. We, therefore, proposed a new voting architecture known as Stateful TMR, which uses both the results of TMR and the history of states to select the most reliable module. Through simulations, we evaluate the reliability of a module using both TMR and Stateful TMR, and show that for both transient and permanent failures, Stateful TMR achieves higher reliability than TMR.