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Recently, a new concept called desktop cloud emerged, which was developed to offer cloud computing services on non-dedicated resources. Similarly to cloud computing, desktop clouds are based on virtualization, and like other computational systems, may experience faults at any time. As a consequence, reliability has become a concern for researchers. Fault-tolerance strategies focused on independent...
The on-going electrification transportation system revolution has already started and the continuous evolution of power electronics allows new and more reliable system layouts and control strategies to be investigated. Mainly, this revolution is driven by increased reliability levels. Since multi-three phase motors are fault tolerant by definition, they are a very good candidate for more reliable...
With billions of connected users and objects, location-based services face a massive scalability challenge. We propose a horizontally-scalable and reliable location-based publish/subscribe architecture that can be deployed on a cluster made of commodity hardware. As many modern location-based publish/subscribe systems, our architecture supports moving publishers, as well as moving subscribers. When...
This work proposes a fault diagnosis methodology intended for resistive memories. Multiple cells of a block may suffer from stuck-at faults during repetitive write operations in resistive memory. It causes serious hindrance to large scale adoption of resistive memory. This issue is addressed through introduction of von Neumann's Cellular Automata (CA). The two single length cycle attractor CA (TACA)...
In this paper the applicability of a fault tolerance synchronization algorithm is presented through data packet headers. Packet headers provide indicts for networking equipment on what must be done and in the case of real-time persistent routed sessions, these are a concise guideline on how to tune each parameter. Real-time sessions are transmitted with connection oriented protocols and need a constant...
As the security is becoming more and more important these days, we still should not forget about reliability. When designing a cryptographic device for some mission-critical or another reliability demanding system, we need to make the device not only attack-resistant, but also fault-tolerant. There are many common fault-tolerant digital design techniques, however, it is questionable, how these techniques...
The use of electronic equipment and other DC-compatible appliances in dwellings and offices is increasing at a very fast rate, as well as the distributed generation of energy. These two statements will certainly trigger, in a near future, the adoption of district-scale DC grids, connecting DC micro-generation plants and consumers, in an effort to cut the number of conversion steps required to deliver...
The integration of Internet of Things (IoT) and Cloud computing has brought the rising of IoT Clouds able to provide different kinds of IoT as a Service solutions consisting of various micro-services deployed in IoT devices (including sensors and actuators) interacting with different Infrastructure, Platform, and Software as Service (i.e., IaaS, PaaS, SaaS) running in the Clouds' data centres. On...
This research provides a concise answer to how to organize a strong infrastructure of information technologies for high availability based on open source software, it's necessary for large organizations to provide high availability, the work will focus on explaining the procedures to provide services for users 24 hours the 365 days. Centralization is a major weakness today because is the only source...
Fault tolerance (FT) is well studied and practicedin the past decades to enhance reliability of software systems. Although many sophisticated fault tolerance mechanisms have been developed, they are difficult to be applied to a given systemfor the following reasons. Firstly, the comprehensive analysis of the target system is a challenging task. Secondly, it is hard todetermine which fault tolerance...
This paper describes the fault tolerance comparative analysis of a battery electric energy storage consisting of multiple battery submodules and fuel cell electric energy source for the traction drive of an electrical helicopter. The entire propulsion system reliability assessment is based on the reliability evaluation of the system components including electric energy sources. Considering the high...
Critical applications require reliable processors that combine performance with low cost and energy consumption. Very Long InstructionWord (VLIW) processors have inherent resource redundancy not constantly used due to application’s fluctuating Instruction Level Parallelism (ILP). Reliability through idle slots utilization is explored either at compile-time, increasing code size and storage requirements,...
Due to the growing performance requirements, embedded systems are increasingly more complex. Meanwhile, they are also expected to be reliable. Guaranteeing reliability on complex systems is very challenging. Consequently, there is a substantial need for designs that enable the use of unverified components such as real-time operating system~(RTOS) without requiring their correctness to guarantee safety...
The deployment of DC microgrids proves to be an excellent opportunity to significantly increment the energy efficiency in buildings. Among other components, DC-DC converters play vital functions in a DC microgrid. However, the reliability levels of these energy conversion solutions are still quite limited. Hence, improving the reliability of the DC-DC converter topologies that best suit each equipment's...
This paper discusses SEE effects in an architecture based on commercial-off-the-shelf multicore processors for consolidating mixed criticalities applications in single board computers for space applications. This paper builds on previously proposed system-level architectures for mixed-criticality applications, describing them both for convenience together with the previous validation results. The...
In this article, the use of the universal environment GPSS is suggested, which is intended to perform discrete reliability simulations on systems for mass service. This is achieved by using various distributions included into the program pack, which practically cover all items in the reliability analysis. Simulation can be performed on Markov and semi-Markov processes and the connected with them Poisson...
On the basis of a comparative analysis an analogy can be made between the diversity of technology and the diversity of nature. As a result of this analysis, philosophical summaries have been made. The role of the diversity in the technique for complex achievement of better indicators is considered: reliability, security, detection, identification, which ensure a higher probability of system survival...
This paper develops a SIMD-based software fault tolerance technique for ARM processors. The core technique employs instruction-level redundant execution to tolerate bit-flipping errors. The proposed approach is implemented in the LLVM compiler to generate reliable code automatically. For the tested benchmark programs, preliminary experiments show that the proposed approach can correctly generate fault-tolerant...
This paper proposes a new fault-tolerant predictive control strategy, with minimal hardware requirements, for wind energy conversion systems based on the doubly-fed induction generator with the rotor fed by two three-level neutral-point clamped converters in a back-to-back configuration. The proposed strategy is capable of maintaining the system in operation with good performance under IGBT open-circuit...
The networked manufacturing paradigm is a new and advanced development direction of the manufacturing industry. However, based on SOA (Service-Oriented Architecture), service failures and service errors are inevitable in the collaborative manufacturing service network. Aiming at solving this problem, this paper proposes a reliability optimization method for collaborative manufacturing service network...
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