This paper considers the problem of enhancing the dependability (availability and its in¯uencing factors) of optical cross connect nodes. These nodes are expected to be a crucial part of future optical communication networks. The genetic optimum redundancy allocation (GORA) algorithm proposed here is based on a hybrid genetic algorithm and solves the dependability enhancement problem by optimiz...

This paper develops a new system reliability design optimization model based on a series-parallel system, where each subsystem is composed of components that are chosen to optimize the system reliability, while considering uncertainty of future usage conditions. In previous research, component reliability is generally assumed to be known with certainty because the usage and operating stresses a...

The redundancy allocation problem (RAP) is one of the most commonly used approaches for improving reliability systems. present study investigates recent variant RAP, namely, RAP with heterogeneous components under mixed strategy. An exact branch-and-price (BP) algorithm proposed that solves in less than CPU second all benchmark instances reported literature. not only first a strategy but also a...

Probabilistic-based methods have been used for designing noise tolerant circuits recently. In these methods, however, there is not any reliability mechanism that is essential for nanometer digital VLSI circuits. In this paper, we propose a novel method for designing reliable probabilistic-based logic gates. The advantage of the proposed method in comparison with previous probabilistic-based met...