A lot of contemporary cloud computing platforms offer Infrastructureas-a-Service provisioning model, which offers to deliver basic virtualized computing resources like storage, hardware, and networking as on-demand and dynamic services. However, a single cloud service provider does not have limitless resources to offer to its users, and increasingly users are demanding the features of extensibi...

Cloud services are emerging today as an innovative IT provisioning model, offering benefits over the traditional approach of provisioning infrastructure. However, the occurrence of multi-tenancy, virtualization and resource sharing issues raise certain difficulties in providing performance estimation during application design or deployment time. In order to assess the performance of cloud servi...

With the advent of cloud technologies, there is a growing number of easy-to-use services to store files and share them with other cloud users. Cloud service providers try to convince users to trust their services and encourage them to store personal files or corporate documents on their servers. However, both security conscious personal and cooperate users are reluctant to trust cloud service p...

Composite cloud services based on the methodologies of Software as a Service and Service-Oriented Architecture are transforming how people develop and use software. Cloud service providers are confronting the service selection problem when composing composite cloud services. This paper deals with an important type of service selection problem, minimizing the total cost of providing a composite ...

For the last two years cloud computing is a important in the IT industry. In cloud computing data owners and service providers are not in the same trusted domain so the Service providers should not be a trusted one and they are all third party.It focuses on a technique to Hierarchical Attribute Set Based Encryption (HASBE); it is proposed by the Cipher Policy attribute-based encryption (CP-ABE)...

As the number of cloud service providers grows and the requirements of cloud service consumers become more complex, the latter will come to depend more and more on the intermediation services of cloud service brokers. Continuous quality assurance and optimisation of services is becoming a mission-critical objective that many consumers will find difficult to address without help from cloud servi...

Cloud computing offers a wide range of benefits including potential cost-savings by leasing resources from cloud service providers and improved user experience by Geodistributing applications [17]. Cloud service providers typically share the platform and cloud resources across multiple users for better utilization. They lease resources on-demand to users in three broad flavors, namely, Infrastr...

Cloud computing enables system administrators to dynamically allocate resources and create virtual machines whenever necessary. It provides scalable and elastic provisioning of multiple servers without purchasing any hardware or physical infrastructure. Instead, utility computing is introduced with pay-as-you-run mechanism where the service is charged based on the actual amount of time and reso...

Service providers are migrating to on-demand cloud computing services to unburden the task of managing infrastructure, while cloud computing providers expand the number of servers in their data centers because of the increase in load. With this growing need, their energy consumption increases significantly. Conserving energy and reducing the operational cost while satisfying the service level a...

Nowadays sophisticated vehicles can become autonomous e-government service providers by viewing them as “G-Cloud computing” nodes. By using web services technologies vehicles can offer e-government cloud computing services.