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In this paper the adaptive mesh model is studied. First we introduce the 3 subdivision method which is already exist. Second, in order to make the simulation result more realistic and reasonable, we extend the traditional scheme and apply two different subdivision schemes on the triangular mesh. At last, a new mesh coarsening method is proposed, with the help of this method, we build a extended adaptive...
Opportunistic spectrum sharing (OSS) has become an effective method to fully utilize the scarce spectrum resources. In this paper, we propose an OSS scheme with quality-of-service (QoS) support for secondary users (SUs) in cognitive radio networks (CRNs). SUs are classified into the SUs with real-time traffic (RT-SUs) and the SUs with non-real-time traffic (NRT-SUs). The RT-SUs have higher terminated-priority...
As an important part of Urban Intelligent Traffic System, parking guidance is one of the most effective measures to solve the difficult parking problems. How to plan and design the Parking Guidance System (PGS) effectively is an issue in this paper. Through the design of the simulation, we can realize the main functions of PGS. In this article, we put forward a framework of parking guidance system,...
This paper obtained the switching impulse flashover characteristic of live working complex gap on extra high voltage (EHV) and ultra high voltage (UHV) high-voltage transmission lines by a large number of experiments. Based on the experimental data and the leader inception discharge model, the complex gap discharge development during the process of entering equipotential and its influencing factors...
Although many theoretical methods were developed to price various derivatives, pricing deviation still remains very high. This paper provides a pragmatical option pricing method by combining skew ness and kurtosis adjusted Black-Scholes model of Corrado and Su, time series analysis and Artificial Neural Network (ANN). The empirical tests in FTSE 100 Index options show that pricing deviation calculated...
In the current effect analysis of large-scale electromagnetic radiation, the following factors such as the terrain and surface features around the radiation source is not involved, which lead to the big error of field intensity distribution from the computational analysis and actual measure value after the equipments service. Aiming at the critical case, we firstly analyze the fundamental principle...
Recently, data dissemination in vehicular networks has received considerable attention. In particular, there has been significant interest in accessing information stored at RSUs (Roadside Units). Although data access has been extensively studied in the network community, unique characteristics in vehicular networks bring us new challenges. First, the RSU provides both safety-critical and non-safety-critical...
The priority method is proposed for wireless LAN in this paper, which is that different workstations are distinguished with different business in wireless LAN, through modeling and simulation, the network performance parameters are analyzed in the priority mechanism, the results showed that the priority mechanism can achieve the better network performance. To a certain extent, it is guaranteed that...
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