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For the random arrival tasks, maximum of the social welfare by allocating the VMs in private cloud is concerned in this work. The model of VMs allocation online mechanism is built, which is single-valued, non-parallel, and preemptive. A preemptive online mechanism is proposed, the truthfulness is proved, and the competitive ratio is given in a simple situation. Many simulations are implemented using...
MIMO-relay technology is accepted as a promising solution to improve cell edge performance for the future 4G wireless system. In this paper, an inter-cell interference mitigation scheme based on MIMO-relay technique is proposed to improve the average capacity for cell edge users. In the paper, a new network structure with shared relay station (SRS) is first studied, and a two-tier channel decomposition...
The use of supercomputing technology, parallel and distributed processing, and sophisticated algorithms is of major importance for computational scientists. Yet, the scientists’ goals are to solve their challenging scientific problems, not the software engineering tasks associated with it. For that reason, computational science and engineering must be able to rely on dedicated support from program...
Virtual machines offer unique advantages to the scientific computing community, such as Quality of Service(QoS) guarantee, performance isolation, easy resource management, and the on-demand deployment of computing environments. Using virtual machines as a computing resource within a distributed environment, such as Service Oriented Architecture (SOA), creates a variety of new issues and challenges...
Virtual machines offer various advantages such as easy configuration, management, development and deployment of computing resources for cyberinfrastructures. Recent advances of employing virtual machines for Grid computing can help Grid communities to solve research issues, for example, qualities of service (QoS) provision and computing environment customization. The heterogeneous virtualization implementations,...
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