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Streaming Media is a multimedia that is presented to an end user which is constantly received by while being delivered by a provider. Amazon Web Service (AWS) is a collection of remote computing services (also called web services) that together make up a Cloud computing platform, offered over the Internet by Amazon.com. The most central and well-known of these services are Amazon EC2 and Amazon S3...
A smart campus refers to a campus where modern information and communication technologies bring more convenience to campus life, assist campus users to improve and more efficiently accomplish their daily activities, and enhance social interactions. Regarding the high demand of services such as mining campus users' semantic information, building augmented reality assisted mobile campus and smart class,...
Although academic and industry experts are now advocating for going from large-centralized Cloud Computing infrastructures to smaller ones massively distributed at the edge of the network, management systems to operate and use such infrastructures are still missing. In this paper, we focus on the monitoring service which is a key element to any management system in charge of operating a distributed...
Cloud users may decide to live migrate their virtual machines from a public cloud provider to another due to a lower cost or ceasing operations. Currently, it is not possible to install a second virtualization platform on public cloud infrastructure (IaaS) because nested virtualization and hardwareassisted virtualization are disabled by default. As a result, cloud users' VMs are tightly coupled to...
Failure in cloud system is defined as an even that occurs when the delivered service deviates from the correct intended service. As the cloud computing systems continue to grow in scale and complexity, there is an urgent need for cloud service providers (CSP) to guarantee a reliable on-demand resource to their customers in the presence of faults thereby fulfilling their service level agreement (SLA)...
Together with the rapid development of IT technology, cloud computing has been considered as the next generation's computing infrastructure. One of the essential components of cloud computing is the virtual machine technology that enables to reduce the data center cost with better resource utilization. Especially, VDI (Virtual Desktop Infrastructure) is receiving explosive attentions from IT markets...
In order to solve the problems of privacy protection and the user revokes in social network, a multi-authority attribute-based encryption access control for social network is presented. In the proposed scheme, we utilizes the linear secret sharing scheme and the proxy re-encryption technique to achieve the user rights update and support flexible access control strategy. Multiple authorities jointly...
As a most important part of students majoring in computer science related areas, experiments contribute to not only better understanding the theoretical knowledge but also enhancing the ability of hands-on. However, traditional laboratories require a high-cost investment on both site and equipment, especially experiments of computer network. In order to address these problems, we design a virtual...
The drastic increase in the commodity computer and network performance for the last generation has a resultant of faster hardware and more sophisticated software. But, the supercomputers of the current generation are still incapable of solving the current problems in the field of science, engineering, and business. This problems arises as a single machine cannot facilitate the availability of various...
Push technology has become an essential part of many web applications that require near real-time notification. The Hypertext Transfer Protocol (HTTP) is widely used for exchanging information between clients and servers. The growth of the Internet of Things (IoT) and the expansion/penetration of Internet access to new areas have resulted in the ever-rapidly increasing number of Internet users. Consequently,...
Cloud federation allows interconnected Cloud Computing environments of different Cloud Service Providers (CSPs) to share their resources and deliver more efficient service performance. However, each CSP provides a different level of security in terms of cost and performance. Instead of consuming the whole set of Cloud services that are required to deploy an application through a single CSP, consumers...
With the rapid development of WEB applications, the demand for dynamically adjusting computing resources based on the load variation is increasing. However, most of the traditional WEB systems have limited ability to respond to load changes. In order to solve the problem, software self-adaptation technology has been applied to the resource management of WEB systems. Many researchers have tried to...
Cloud computing is undoubtedly considered one of the most discussed topics in recent times, both in the research and business sectors. Various schools of thought have attempted to provide a fitting definition from many aspects. This computing paradigm can be defined as a web-based computing model designed to allow both off-site storage and easy data and digital file sharing. The SQL injection, which...
Cloud computing has been an emerging technology paradigm that provides on-demand resource for systems over the Internet. Resource reconfiguration is an important issue in the life cycle of the system in cloud. This paper proposes a cross-cloud system reconfiguration module, which focused on being an assistance of reconfiguration task toward helping the system managers to reconfigure their cloud system...
The computational world has become very large and complex. Cloud is an emerging technology in the world of Information Technology. Cloud computing offers IT capabilities as services. Cloud based services are on demand, scalable, device independent and reliable. Cloud computing is built on the virtualization concept. Virtualization separates hardware from software and has benefits of server consolidation...
Cloud computing is significantly reshaping the computing industry built around core concepts such as virtualization, processing power, connectivity and elasticity to store and share IT resources via a broad network. It has emerged as the key technology that unleashes the potency of Big Data, Internet of Things, Mobile and Web Applications, and other related technologies; but it also comes with its...
Performance is one of the main aspects that should be taken into consideration during the design, development, tuning and optimisation of computer networks supported by cloud computing platforms (CCPs). Queueing network models (QNMs) of CCPs constitute essential quantitative tools of investigation towards identifying acceptable levels of quality-of-service (QoS), whether for upgrading an existing...
New opportunities exist for applications such as disaster incident response that can benefit from the convergence of Internet of Things (IoT) and cloud computing technologies. Particularly, new paradigms such as Mobile Edge Computing (MEC) are becoming feasible to handle the data deluge occurring in the network edge to gain insights that assist in real-time decision making. In this paper, we study...
Cloud computing is underpinned by huge datacenters which are considered as significant consumers of energy. Under the umbrella term GreenCloud the scientific community developed different architectures, algorithms and methods to improve energy efficiency of these datacenters. However, approaches which try to modify existing or applying new economical concepts to improve energy efficiency of datacenters...
Recent reports on cloud computing performance have provided anecdotal evidence to suggest that it varies over time and according to the vendor. This variability could potentially detract from customer experience, and/or result in increased costs to cloud consumers. In order to investigate performance variability over time, this research measured a number of different services provided by five of the...
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