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To improve the energy efficiency of small-cell networks, in this paper, we analyze the operating procedure of home base stations, i.e., Home evolved Node B (HeNB), in femtocells, by introducing an MAP/PH/1/k queueing model. In this analytical model, the HeNB's power on/off is represented as the alternative service and vacation periods. In addition, the hybrid-access mode defined in Third-Generation...
We are building a ‘virtual-world’ of a real world seabed for its visual analysis. Sub-bottom profile is imported in the 3D environment. “section-drilling” three-dimensional model is designed according to the characteristics of the multi-source comprehensive data under the seabed. In this model, the seabed stratigraphic profile obtained by seismic reflection is digitized into discrete points and interpolated...
In the P2P network, trust model can reduce the influence of malicious nodes effectively. Eigen Trust is one of the most authoritative trust model. This model is mainly applied to the P2P file sharing system which is the theoretical basis of many trust model. It was improved in different aspects for enhancing the model's performance. The model use service trust value to indicate node's recommendation...
Colored Petri Net(CPN) approach is powerful for modeling and analysis of command and control (C2) problems through synchronous and asynchronous processing activities and properly encapsulates hierarchical behavior. We give an informal introduction to the basic concepts and ideas of CPN. A CPN implementation of a aerial defense model being used for representing the real-time aspects and behavior of...
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