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This paper proposes a storage system cost model for Infrastructure as a Service (IaaS) Cloud. The proposed cost model takes into account the virtualization environment, the storage system characteristics in addition to energy and QoS related parameters (Service Level Agreement and penalties). We show that those parameters are relevant and allow us to predict an accurate estimation of the overall cost...
This paper proposes a storage system cost model for Infrastructure as a Service (IaaS) Cloud. The proposed cost model takes into account the virtualization environment, the storage system characteristics in addition to energy and QoS related parameters (Service Level Agreement and penalties). We show that those parameters are relevant and allow us to predict an accurate estimation of the overall cost...
This paper analyzes and evaluates the strategies and implications related to the execution of parallel algorithms on a distributed Cloud infrastructure, with the focus on an important class of applications for which the execution is performed on spatial data, dislocated on a bidimensional territory. Applications of interest cover a wide spectrum ranging from Internet of Things to social sciences,...
This paper analyzes and evaluates the strategies and implications related to the execution of parallel algorithms on a distributed Cloud infrastructure, with the focus on an important class of applications for which the execution is performed on spatial data, dislocated on a bidimensional territory. Applications of interest cover a wide spectrum ranging from Internet of Things to social sciences,...
Computation offloading is a promising way to improve the performance as well as reducing the battery power consumption of a mobile application by executing some parts of the application on a remote server. Recent researches on mobile cloud computing mainly focus on the code partitioning and offloading techniques, assuming that mobile codes are offloaded to a prepared server. However, the context of...
Cloud computing is a new model of information Technology. It has drastically changed the way information technology services are used in organizations. Cloud computing technology can be used to provide good solutions for higher education institutions (HEIs). Despite the features of using cloud computing technology in education sector, however, still many of HEIs have not fully benefited from cloud...
Internet of Things (IoT) is the technique to connect each and everything to Internet, and it provides anything at anytime regardless of where the thing is located. If we connect devices in this way, by 2020, billions of devices will get connected to the Internet. The current trends shows that the deployment of sensors and IoT paradigm growing in a rapid pace. This shows that the next information revolution...
This paper uses the Aristotelian concept of phronesis (practical wisdom) as a sensitizing device to explore digital materiality in relation to user experience. We studied a digital innovation called Prudence, and observed that it possesses material properties including sensitivity to particulars, interactive ability, open-mindedness, and future orientation, making it context-aware. These properties...
Although extensive progress has been made in Mobile Cloud Augmentation, automated decision support on the device that enables the opportunistic and intelligent use of cloud resources is missing. Furthermore, we need solutions with reflective capabilities that can handle a changing environment and runtime variability. To simplify the deployment of smart mobile applications, we present a framework with...
Multi-tenant Software-as-a-Service (SaaS) applications are increasingly built on combinations of cloud storage technologies and providers in a so-called multi-cloud setup. One advantage is that such a setup helps satisfying the different -- sometimes even contrasting -- storage requirements of different customer organizations (tenants). In such a multi-cloud environment, the application data is distributed...
The use of mobile devices for learning is prominent nowadays. Mobile learning has become an essential part to enhance today's learning style. However, technologies still lack abilities to fully understand human reaction and comprehend their cognitive processes to be able to interact with them and deliver the right amount of contents. Therefore, one research scope is having devices which can sense...
This paper introduces the Operationally Critical Threat, Asset, and Vulnerability Evaluation (OCTAVE) Allegro methodology as a novel framework to identify risks for Cloud Computing. According to Cloud Security Alliance (CSA) [1], before applying security controls in Cloud Computing, risks and threats must be effectively identified and assessed. OCTAVE Allegro approach being introduced is designed...
The Networked Society introduces many challenges but even more opportunities for our industry. When everyone and everything is connected, the demand on e.g. capacity, coverage, flexibility and quality on the networks will increase as will that on security, data protection and privacy.
The concept of Cloud Engineering (CE) as a superset of performance engineering emerges in an extensive number of industrial architectural approaches and implementation flavours. To effectively manage cloud-based systems, it is crucial to monitor, to meter and then to allocate their structural behaviour and performance. In the context of this work, considerable number of experimental measurements are...
The ad-hoc mobile market is the environment that allows the interconnectivity of mobile devices within community of users that are ready to communicate and share services between providers and consumers. Issues like service discovery and selection are major obstacle in ad-hoc mobile. With the growing of this market, researchers are concentrating on service discovery with little on selection. Provision...
Nowadays enormous amounts of energy are consumed by Cloud infrastructures and this trend is still growing. An existing solution to lower this consumption is to turn off as many servers as possible, but these solutions do not involve the user as a main lever to save energy. We introduce a system that proposes to the user to run her application with degraded performance. A user choosing an energy-efficient...
Dynamic metrics are known to assess the actual behavior of software systems as they are extracted from runtime data obtained during program execution. However, recent literature indicates that dealing with dynamic information remains a formidable challenge due to the huge size of execution data at hand, resulting in long processing delays. We present an efficient and scalable technique to extract...
In this paper, we propose a context-aware distributed data storage mechanism to optimize the performance of reading/writing in the emerging mobile cloud computing environment. In particular, the exploited context information including user mobility pattern, network condition, and data access preference (intensity to read and write/update). The context information is utilized to improve the efficiency...
Efficient and flexible server provisioning is one of the most important criteria in measuring quality of cloud service. In order to save time and mitigate risk, images are set up as templates. And to provision a server, the cloud service provider replicates a selected image and then customize it to fulfill the server request. Therefore image set-up is vital to the efficiency and flexibility of cloud...
With the increase in number of mobile devices deployed in cloud computing, the demand of context-aware services to assign increases. Indeed, Information about the user's environment exposes new challenges to cloud computing in terms of location-aware, time-aware, device-aware and personalized applications to cope with the constraints of mobile devices in matters of interaction abilities and communication...
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