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In heterogeneous ultra-dense networks (HetUDNs), the software-defined wireless network (SDWN) separates resource management from geo-distributed resources belonging to different service providers. A centralized SDWN controller can manage the entire network globally. In this paper, we focus on mobile traffic offloading and resource allocation in SDWN-based HetUDNs, constituted of different macro base...
In this paper, we design the wireless link of a novel vascular stent antenna, which is a key component of future in-vessel telemetry systems. To achieve an efficient link, both the antenna loss and propagation loss should be characterized and minimized. Firstly, a detailed computational model of tissue-induced path loss is proposed and validated to characterize path loss. Meanwhile, antenna loss is...
The strong effect of ground damage and the serious earthquake-induced geological disasters are the notable features of Wenchuan earthquake. The distribution of earthquake-induced geological disasters in the earthquake is closely related to the distribution of earthquake fault, at the same time, it's also influenced and controlled by the physical geography, lithology, geological structure and human...
This article proposed a nonparametric test method by using Gaussian mixture model application idea for reference to evaluating the construction of index architecture. First use Gaussian mixture model to cluster analysis the index architecture. Second use rank correlation coefficient of nonparametric test method to select index architecture. Then determined the evaluate index architecture and guarantee...
Absorbing exchange rate as exogenous disturbance, a mixed GARCH-jump model is proposed to compare return series fluctuation of Shanghai composite index with that of Dow Johns Index. It also incorporates properties of asymmetry, clustering, leptokurtosis and fat-tail of index series fluctuation into an integrated analytic frame of so-called diffusion-jump. Fitness test of GARCH-jump model proves that...
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