Cloud computing (CC) and mobile cloud computing (MCC) have advanced rapidly the last few years. Today, MCC undergoes fast improvement and progress in terms of hardware (memory, embedded sensors, power consumption, touch screen, etc.) software (more and more sophisticated mobile applications) and transmission (higher data transmission rates achieved with different technologies such as 3Gs). This...

-The goal of cloud computing is usage of cloud resource form anywhere i.e. mobility. Mobile cloud computing, new technology in the field of cloud computing enables cloud users to access cloud from their mobile devices (e.g. Laptops, PDA, Smartphone’s). Computation power and battery life is one of the major issues of these mobile devices. Now a day’s resource starved applications like online HD ...

Cloud computing is a technological advancement that has been growing swiftly during the last decade. In simple terms, cloud computing is a technology that enables shared, remote, on-demand and ubiquitous access to services through the Internet. It enables consumers to access applications and services that reside on remote servers, without having to allocate large amounts of storage space on the...

Cloud Computing has recently become an important driver for IT service provisioning. In addition to its associated benefits for both customers and IT service providers, cloud computing also comes along with new challenges. One of the major challenges for providers is to reduce the energy consumption, since today already more than fifty percent of operational costs in data centers account for en...

Nowdays, energy consumption as a critical issue in distributed computing systems with high performance has become so green computing tries to energy consumption, carbon footprint and CO2 emissions in high performance computing systems (HPCs) such as clusters, Grid and Cloud that a large number of parallel. Reducing energy consumption for high end computing can bring various benefits such as red...

Cloud computing is a rising field providing computation resources. It represents a new paradigm of utility computing and enormously growing phenomenon in the present IT industry and economy hype. The companies which provide services to customers are called as cloud service providers. The cloud users (CUs) increase and require secure, reliable and trustworthy cloud service providers (CSPs) from ...

Based on integrated infrastructure of resource sharing and computing in distributed environment, cloud computing involves the provision of dynamically scalable and provides virtualized resources as services over the Internet. These applications also bring a large scale heterogeneous and distributed information which pose a great challenge in terms of the semantic ambiguity. It is critical for a...

Quality of service plays is an important factor in distributed computing. Cloud computing has been the paradigm in distributed computing. Under cloud computing, computing resources are hosted in the internet and delivered to customers as services. Prior to the commencement of services, the customers and cloud providers negotiate and enter into an agreement named service level agreement. The ser...

The convention of cloud computing has increased promptly in the society. Cloud computing have many benefits in terms of accessibility of data and low expenditure. A fundamental characteristic of the cloud services is that user’s data are usually processed remotely in unknown machines that users do not operate. It can be transformed into a momentous roadblock to the wide adoption of cloud servic...

Cloud computing is an emerging paradigm in the area of distributed systems. While numerous information technology vendors aggressively position themselves in offering various cloud services, many computer technologists earnestly provide their definitions of cloud computing, and compare this paradigm to its predecessors such as grid computing and utility computing. In this paper, we argue and de...