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The islands have plentiful renewable energy resources. Fully use of these renewable energy sources will greatly improve the power supply capacity and quality of the offshore micro grid. Considering the randomness and intermittence of the output of these renewable energy sources, it is a good choice to add energy storage devices into the grid to improve the reliability and stability of the system output...
Monoculture in a computer network is defined as executing the same protocols and software on all the networking devices. Multiple, correlated failures may be triggered in a monoculture network by attacks that exploit existing vulnerabilities in either protocols, software, or hardware. In this paper, optimal multiculture network design is used to improve the network reliability in the presence of correlated...
Software-defined networking (SDN) is a key emerging technology that enables networks to be programmed and dynamically reconfigured through software-based network applications. This programability also significantly increases the exposure of these networks to software application faults, which can compromise or crash the underlying SDN network. It is thus imperative to detect subtle faulty or malicious...
This paper proposes two non-uniform quantization schemes and also introduces an implementation system based on Software Defined Radio (SDR) consisting of GNU Radio and Universal Software defined Radio Peripheral (USRP) to sense a spectrum. In cognitive radio (CR) systems, detection and error probability are representative indicators of system performance. These performance indicators are influenced...
This work presents the major characteristics and lessons learned by the development and prototype implementation of an event-oriented and cloud-based SCADA system that is constructed using a microservice architecture. The microservices are then utilized to propose an approach for implementing product-driven production systems under the RAMI4.0 specification.
Finding suitable developers for a given task is critical and challenging for successful crowdsourcing software development. In practice, the development skills will be improved as developers accomplish more development tasks. Prior studies on crowdsourcing developer recommendation do not consider the changing of skills, which can underestimate developers' skills to fulfill a task. In this work, we...
Some approaches and techniques that allow conducting of complex physiological research using closed-architecture measurement systems of different manufacturers are discussed. The experience in developing a system with flexible configuration and in solving arising problems by virtue of integration of equipment using an external synchronizing device, is described. Parallels are drawn with the modern...
Mobile learning has emerged as a new and promising learning modality, providing more interactivity and flexibility to learners, tutors and teachers in carrying out educational activities and practices. However, in spite of the benefits, the existing applications still have several issues and challenges to be addressed, such as the quality evaluation of the resulting mobile learning applications. Aiming...
Due to technology scaling, which means smaller transistor, lower voltage and more aggressive clock frequency, VLSI devices are becoming more susceptible against soft errors. Especially for those devices deployed in safety- and mission-critical applications, dependability and reliability are becoming increasingly important constraints during the development of system on/around them. Other phenomena...
This paper presents a Controller Area Network (CAN) communication system in the Field-Programmable Gate Array (FPGA), which is Xilinx Artix-7. Hardware circuits and the software flow char are described in detail. The reusable IP (Intellectual Property) technology is used in FPGA as the core controller. In addition, the CAN communication system is implemented by System-on-a-Programmable-Chip (SOPC)...
This article describes the use of the comparison method MM to protect the Internet user from the effects of DNS Injection attacks. A description of the basic concepts of this area of the computer network and the dangers of DNS Injection attacks is presented. The description of the MM method used in the literature is concluded. In the paper the concept of using above-mentioned method to protect Internet...
The rapidly growing software content within the vehicles continue to make automotive systems more intelligent through the addition of software enabled electronics. A plethora of change in the automotive industry is largely driven by the embedded software technology. The Advanced Driver Assistance Systems are one of such innovations of technology which are gaining widespread momentum in today's ever...
Dependability of cyber-physical systems rests crucially on the fidelity of formal models to their real-world physical subject matter; yet little explicitly focused research has been devoted to this concern. This talk sketches the concern and commends it as a focus for future research in the RE community.
The collaborative recommendation mechanism is beneficial for the subject in an open network to find efficiently enough referrers who directly interacted with the object and obtain their trust data. The uncertainty analysis to the collected trust data selects the reliable trust data of trustworthy referrers, and then calculates the statistical trust value on certain reliability for any object. After...
In this paper a log-MAP turbo decoding algorithm which incorporates reliability threshold based trellis branch elimination together with mean based early iteration termination has been proposed. The proposed algorithm reduces computational complexity by eliminating branches in trellis. Since the minimum Log Likelihood Ratio (LLR) obtained for each iteration varies with channel conditions, an early...
The development of knowledge-based systems (KBSs) has been an area subject to much criticism due to the general lack of structured engineering methods. Although many design and development methods have been proposed and successfully realised, such as CommonKADS, there is still a continuing concern that the reliability of KBSs is difficult to evaluate. This is partly due to the limited incorporation...
The software defined optical network (SDON) service plays an important role in the production and operation of the network system. It's important to solve the problem of how to reduce the risk and distribute the service path more rationally. However, most of the existing algorithms do not take into account service importance. In this paper, a risk balancing routing assignment mechanism based service...
Reliability evaluation is a critical task in computing systems. From one side, the results must be accurate enough not to under-or over-estimate the overall system reliability (thus either resulting in a non-reliable system, or a system for which too expensive solutions have been adopted). On the other side, the time required for the analysis should be kept at the minimum. This paper presents some...
Crowdsourcing has emerged as a promising approach for obtaining services and data in a short time and at a reasonable budget. However, the quality of the output provided by the crowd is not guaranteed, and must be controlled. This quality control usually relies on worker screening or contribution reviewing at the cost of additional time and budget overheads. In this paper, we propose to reduce these...
In the multi-temporal InSAR technique, a deformation map is obtained by arc integration. Therefore, the reliability of an arc solution directly influences the precision of the final result. Many methods have been proposed to estimate arc parameters, but few have evaluated the arc quality. In this study, the influence of phase ambiguity is analyzed and two indicators are defined to identify the arcs...
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