This paper presented a novel decentralized fault tolerant control strategy for the control of linear multivariable processes. The multiple model based fault tolerant method is used to improve system performance (under model uncertainty and slow variation) and implement active fault tolerant control. In the mean time, we extended the decentralized unconditional stable control to multiple model c...

a new fault tolerant controller (ftc) has been presented in this research by integrating a fault detection and diagnosis (fdd) mechanism in a nonlinear model predictive controller framework. the proposed fdd utilizes a multi-sensor data fusion (msdf) methodology to enhance its reliability and estimation accuracy. an augmented state-vector model is developed to incorporate the occurred sensor fa...

This paper considers problems of fault{tolerant information diiusion in a network with cost function. We show that the problem of determining the minimumcost necessary to perform fault{ tolerant gossiping among a given set of participants is NP-hard and give approximate (with respect to the cost) fault-tolerant gossiping algorithms. We also analyze the communication time and communication compl...

To build highly available or reliable applications out of unreliable third-party components, some software-implemented fault-tolerant mechanisms are introduced to gracefully deal with failures in the components. In this paper, we address an important issue in the approach: how to select the most suitable fault-tolerant mechanisms for a given application in a specific context. To alleviate the d...

It is important for a network to tolerate as many faults as possible. With the graph representation of an interconnection network, a k-regular hamiltonian and hamiltonian connected network is super fault-tolerant hamiltonian if it remains hamiltonian after removing up to k 2 vertices and/or edges and remains hamiltonian connected after removing up to k 3 vertices and/or edges. Super fault-toler...

Although, historically, fault tolerance is connected to safetycritical systems, there has been an increasing interest in fault tolerance in mainstream application such as the cloud. There is a need for formal specification and verification of industrial fault-tolerant designs, since they integrate, in a non-trivial way, the ideas from distributed algorithms, whose correctness is usually based o...

In this paper, we present an approach for fault-tolerant synthesis by combining predefined patterns for fault-tolerance with algorithmic game solving. A non-fault-tolerant system, together with the relevant fault hypothesis and fault-tolerant mechanism templates in a pool are translated into a distributed game, and we perform an incomplete search of strategies to cope with undecidability. The r...

AUTOMATIC SYNTHESIS OF FAULT-TOLERANCE By Ali Ebnenasir Fault-tolerance is an important property of today’s software systems as we rely on computers in our daily affairs (e.g., medical equipments, transportation systems, etc). Since it is difficult (if not impossible) to anticipate all classes of faults that perturb a program while designing that program, it is desirable to incrementally add fa...