A Distributed Sensor Network (DSN) consists of a set of sensors that are interconnected by a communication network. DSN is capable of acquiring and processing signals, communicating, and performing simple computational tasks. Such sensors can detect and collect data concerning any sign of node failure, earthquakes, floods and even a terrorist attack. Energy efficiency and fault-tolerance networ...

We survey the MADIS architecture. It supports high availability, fault tolerance and seamless error recovery in computer networks for peer-to-peer computing and other distributed web services. MADIS is open for plugging in different protocols for replication, resilience and recuperation. We recapitulate two protocols which ensure fault tolerance and efficient error recovery. We outline ongoing ...

The OMG’s Real-Time CORBA (RT-CORBA) and Fault-Tolerant CORBA (FT-CORBA) specifications make it possible for today’s CORBA implementations to exhibit either real-time or fault tolerance in isolation. While real-time requires a priori knowledge of the system’s temporal operation, fault tolerance necessarily deals with faults that occur unexpectedly, and with possibly unpredictable fault recovery...

—A large number of sensors are deployed in smart grid for monitoring and metering of the power equipment and other key facilities as well as users’ behavior. The collected information is sent to data processing center for analyzing and processing. Because of the relatively complicated and harsh working conditions of sensors in smart grid, sensor fault occurs frequently. To ensure the normal ex...

Fault tolerance is an important issue in operating system. Checkpointing and Rollback Recovery (CRR) is a key technique to fault tolerance. Its simplicity and effectiveness make it widely applied to fault maintenance of operating system. CRR can be divided into checkpoint storage and restoration. And checkpoint storage is key factor to real-time of checkpoint recovery. Current checkpoint storag...

Fault tolerance via redundancy or replication is contradictory to the notion of a limited trusted computing base. Thus, normal security techniques cannot be applied to faulttolerant systems. As a result, a multi-phased approach is employed that includes fault/threat avoidance/prevention, detection and recovery. However, a determined adversary can still defeat system security by staging an attac...

In switching software applications, service quality has traditionally been achieved by the combination of two strategies: high reliance on defect elimination and fault recovery/tolerance. In turn, defect elimination has proven to be costly in staffing, and the implementation of fault tolerance has resulted in high hardware costs, by exclusively relying on proprietary hardware and by using monol...

This paper presents fault tolerant control systems FTC in a hybrid system framework. Due to the discrete nature of fault occurrence and reconfiguration, FTC systems are considered hybrid in nature. Thus, in this work, actuator fault recoverability is studied by utilizing a controllability concept of hybrid systems. The hybrid formalism allows the recoverability’s analysis based on the controlla...