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The internet of Things (IoT) and Wireless Sensor Networks (WSNs) benefit smart home implementation. This paper introduces an inner sensor alarm system, which can send alarm messages as well as evidence material to outer media. Our system provides a checking function for real time exceptional events, while sending the alarm massage to the user. This application has three gradations: Client Sensor,...
With the wide adoption of cloud computing, the scientific applications are migrated to cloud for execution. The complex structure of scientific applications bring challenges to optimization scheduling scientific applications across multiple heterogeneous clouds. In this paper, the directed acyclic graphs (DAGs) are adopted to represent scientific applications, which have different priorities in the...
The proper operation and maintenance of a network requires a reliable and efficient monitoring mechanism. The mechanism should handle large amount of monitoring data which are generated by different protocols. In addition, the requirements (e.g. response time, accuracy) imposed by long-term planned queries and short-term ad-hoc queries should be satisfied for multi-tenant computing models. This paper...
Hadoop is a Apache project, which has be used at many fields, such online media companies including Facebook, Yahoo, educational service, government. However, there are some security risks or untrust risks in the Hadoop cluster. In the paper, a Trusted Scheme for Hadoop cluster (TSHC) to protect data security with Trusted Computing and cryptography technology is proposed. We first propose the trusted...
Task consolidation is a way of maximizing cloud computing resource, which brings many benefits such as better use of resources, rationalization of maintenance, IT service customization, QoS and reliable services, etc. However, maximizing resource utilization does not mean efficient energy usage. Many literature show that energy consumption and resource utilization in clouds are highly coupled. Some...
Cloud computing is an emerging computing paradigm in which IT resources and capacities are provided as services over the Internet. Promising as it is, this paradigm also brings forth new challenges for data security and access control when users outsource sensitive data for sharing on cloud servers, which are likely outside of the same trust domain of data owners. To maintain the confidentiality of,...
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