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Providing the new power system with well-tailored communication architecture is a key factor to guarantee expected smart grid capabilities. Among many requirements, quality of service awareness is a relevant feature for the smart grid communication system. Indeed, various data flows are to be exchanged in order to ensure smart grid services, having each different resilience, bandwidth and latency...
Flow-Aware Networking (FAN), after a few years of limited interest becomes again a promising concept for the Future Internet. In this paper, we present an integrated approach to ensure efficient and reliable transmission in FAN. The proposed solution is based on the central controller, which enhances an operation of particular mechanisms which compose the integrated system. The key mechanisms of the...
Due to the elasticity of cloud systems, many researchers have developed ideas to fabricate applications to provide cloud based online education. As cloud systems offer on-demand services, broad network access and resource pooling, the teaching to the students has migrated from classrooms to online cloud systems. Resource provisioning means to provide resources as per the requirement of the application...
In the last decade, NAND flash-based SSDs have been widely adopted for high-end enterprise systems in an attempt to provide a high-performance and reliable storage. However, inferior performance is frequently attained mainly due to the need for Garbage Collection (GC). GC in flash memory is the process of identifying and clearing the blocks of unneeded data to create space for the new data to be allocated...
Traditional routing in the Internet is best-effort. Path differentiation including multipath routing is a promising technique to be used for meeting QoS requirements of media-intensive applications. Since different paths have different characteristics in terms of latency, availability and bandwidth, they offer flexibility in QoS and congestion control. Additionally protection techniques can be used...
The memory system is a fundamental performance and energy bottleneck in almost all computing systems. Recent system design, application, and technology trends that require more capacity, bandwidth, efficiency, and predictability out of the memory system make it an even more important system bottleneck [103, 110]. At the same time, DRAM technology is experiencing difficult technology scaling challenges...
Exploration of user generated content in the epoch of Web 2.0 brings unprecedented challenge to the social computing, which has to provide real-time solution in the circumstance of massive data volumes and evolving application scenarios. This paper presents an emotion-based social computing platform namely ESC for streaming big-data. The main aim of ESC is to provide sentiment analysis as the foundation...
This paper presents a design study of an environment that would provide for resilience, high-availability, reproducibility and reliability of Cloud-based applications. The approach involves the use of a resilient container overlay, which provides tools for tracking and optimizing container placement during the course of a scientific experiment execution. The system is designed to detect failure and...
The growing number of services available within social applications (viz. Social networks) raises a new and challenging search issue: selecting desired services from social networks. Traditional discovery and selection approaches, which are registry-based (e.g., UDDI, ebXML), have manifested their limitations as they often fall behind users' expectations. This is because registries fail to (i) take...
Providing reliable and quality of service (QoS) guarantee service is basic requirement for communication system. However, the intrinsic features of high-speed railway communication (HSRC), such as serious channel distortion, lack of perfect channel state information (CSI), severe Doppler effect, and sensitive to algorithm computation complexity, make this requirement hard to be met. In this paper,...
Federated clouds can expose the Internet as a homogeneous compute fabric. There is an opportunity for developing cross-cloud applications that can be deployed pervasively over the Internet, dynamically adapting their internal topology to their needs. In this paper we explore the main challenges for fully realizing the potential of cross-cloud applications. First, we focus on the networking dimension...
This paper summarizes the evaluation of a totally-ordered, reliable multicast protocol over a cognitive radio (CR) network. Multicast enables a group of nodes to subscribe to broadcast messages. Reliability ensures that all nodes receive messages correctly, totally-ordered ensures that all nodes receive messages in sequential order. In the proposed architecture, CR nodes employ multicast to exchange...
Large distributed software systems are increasingly common in today geographically distributed IT infrastructures. A key challenge for the software engineering community is how to efficiently and effectively manage such complex systems. Extending software services with autonomic capabilities has been suggested as a possible way to address this challenge. Ideally, self-management capabilities should...
Several decision making algorithms that are developed in robotics domain are found to be useful in automotive industrial applications. In order to use these algorithms in safety critical embedded systems one has to ensure a minimum confidence level, quality assurance, and reliability. In addition, decision algorithms are designed and developed by domain experts and system integrators do not have control...
As recognition grows within industry for the advantages that can be gained through the exploitation of large-scale dynamic systems, a need emerges for dependable performance. Future systems are being developed with a requirement to support mission critical and safety critical applications. These levels of criticality require predictable performance and as such have traditionally not been associated...
Context information is traditionally collected from distributed digital artifacts and services and made available to similarly distributed, and often mobile, context consuming applications via context brokers or servers. Contextual data has a strong temporal element i.e. it remains valid for a period of time, and hence is an ideal candidate for caching strategies that aim to exploit such locality...
Cloud computing is a promising technology, where the infrastructure, developing platform, software and storage are delivered as a service. With the development of cloud computing, more and more cloud service providers emerge. However, there are no metrics can be referred to compare these providers, so it is difficult for cloud consumers to select the most reliable providers or resources. Thus we present...
Considering numerous of credible problems takes place in the distributed, loosely coupled, flexible and dynamic Web service environment because many factors, such as service provider, service user and service quality and so on, is uncertain, which all these problems exited lead the normal running of system to face serious threats. Therefore, this article, through processing the user feedback information...
In today's web application paradigm, web services play a vital role as reusable application components. Web services act as bridges to connect different software applications, running on a variety of platforms and/or frameworks. We developed a web based system to integrate the reusable application components and to provide different applications a way to link their data: Automatic Integration of Web...
Systematic decision support for architectural design decisions is a major concern for software architects of evolving service-oriented systems. In practice, architects often analyse the expected performance and reliability of design alternatives based on prototypes or former experience. Model-driven prediction methods claim to uncover the tradeoffs between different alternatives quantitatively while...
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