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With energy and power costs increasing as the size of IT infrastructures grows, virtualization technologies enable scalable management for large scale of virtual machines running on physical systems, and virtualization-based green cloud computing paradigm is springing up to provide a scalable and energy-efficient network software application (NetApp in(More)
With the rapid proliferation of camera-equipped smart devices (<i>e.g.</i>, smartphones, pads, tablets), visible light communication (VLC) over screen-camera links emerges as a novel form of near-field communication. Such communication via smart devices is highly competitive for its user-friendliness, security, and infrastructure-less (<i>i.e.</i>, no(More)
The purpose of virtual computing environment is to improve resource utilization by providing a unified integrated operating platform for users and applications based on aggregation of heterogeneous and autonomous resources. With the rapid development in recent years, hypervisor technologies have become mature and comprehensive with four features, including(More)
The increasing complexity and dynamics of grid environments have posed great challenges for secure and privacy-preserving collaboration in a virtual organization. In this paper, we propose PEACE-VO, a secure policy-enabled collaboration framework for virtual organizations. PEACE-VO employs role mapping to define trust relationships across autonomous(More)
Grid computing has emerged as a new paradigm of distributed computing technology on large-scale resource sharing and coordinated problem solving. Based on a proposed Web service-based grid architecture, we have designed a service grid middleware system called CROWN which aims to promote the utilization of valuable resources and cooperation of researchers(More)
ChinaGrid aims at building a public service system for Chi-nese education and research. ChinaGrid Support Platform (CGSP) is a grid middleware developed for the construction of the ChinaGrid. Function modules of CGSP for system running are Domain Manager, Information Center, Job Manager, Data Manager, Service Container and Security Manager. Developing tools(More)
ChinaGrid Support Platform (CGSP) is proposed to provide grid toolkit for ChinaGrid application developers and specific grid constructors, in order to reduce their development cost as greatly as possible. CGSP extensible and reconfigurable framework, which satisfies the expansion and autonomy requirement of ChinaGrid, is mainly discussed in the paper. In(More)
OS-level virtualization is an efficient method for server consolidation. However, the sharing of kernel services among the co-located virtualized environments (VEs) incurs performance interference between each other. Especially , interference effects within the shared I/O stack would lead to severe performance degradations on many-core platforms(More)