The object management architecture (OMA) has been recognized as a de facto standard in the development of object services in a distributed computing environment. In a distributed system, the provision for failure-recovery is always a vital design issue. However, the fault-tolerant service has not been extensively considered in the current OMA framework, despite the fact that an increasing numbe...

Enterprises are increasingly involved in worldwide round-the-clock e-commerce and e-business, which requires them to be operational 24 hours per day, 7 days per week. With outages leading to loss of revenue, reputation and customers, fault tolerance becomes increasingly important. By mixing the fault tolerance logic into the application logic, existing fault tolerance practices render applicati...

A cluster of sensor nodes in Cluster-based Wireless Sensor Network (CWSN) is cooperating to achieve some objectives. For CWSN, the fault-tolerance and reliability has been an important topic. The problem of reaching agreement in the distributed system is one of the most important issues to design a fault-tolerance system. In previous works, reach a common agreement among healthy nodes to cope w...

Fault tolerance is increasingly important in modern autonomous or industrial robots. The ability to detect and tolerate failures allows robots to e ectively cope with internal failures and continue performing designated tasks without the need for immediate human intervention. To support these fault tolerant capabilities, methods of detecting and isolating failures must be perfected. This thesis...

As the nodes have limited battery power in Wireless Sensor Networks (WSNs), energy efficiency and fault tolerance should be the two major issues in designing WSNs. However, previous studies on positioning base stations (BSs) in WSNs are focused on energy efficiency only. Yet, mission-critical applications like emergency medical care systems should be guaranteed continuous services considering f...

Abstmct-The paper provides dependability modeling and evaluation (encompassing reliability and safety issues) of the two major fault tolerance software approaches: recovery Mocks (RB) and N-version programming (NVP). The study is based on the detailed analysis of software fault-tolerance architectures able to tolerate a single fault (RB: two alternates and an acceptance test, NVP: three version...

In this paper, we give a survey on various fault tolerance techniques and related issues in distributed systems. More specially speaking, we talk about two most important issues; multiple fault handling capability and performance. This survey provides the related research results and also explored the future directions about fault tolerance techniques, and it is a good reference for researcher.

Rapid developments are occurring in design of electrical machines and its control. To get optimum performance under normal/fault condition needs implementation of fault tolerance. Next decade is of Permanent Magnet Synchronous Machines. The paper presents mathematical modeling of PMSM. A current and speed controller is designed to implement fault tolerance and its stability analysis.

The parallel processing power is now within our reach through the affordable cluster computing models. Fault tolerance along with the throughput improvement is the prime research challenge of cluster computing. A new task rearrangement of cluster nodes has been implemented to increase the degree of fault tolerance with the existing cluster computing model built on the top of MPI. The proposed m...

Software-implemented approaches to fault tolerance are very resilient to change since evolution in hardware technology does not require extensive re-design of specialized hardware. This paper argues the case for implementing fault tolerance in a distributed fashion and reports the approach adopted in the European Delta-4 project. Fault tolerance is achieved by replicating capsules (the run-time...