| 复杂网络上的交通动力学 |
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| 引用本文： | 严钢 汪秉宏 傅忠谦 周涛[,].复杂网络上的交通动力学[J].ITS通讯,2006,8(2):11-13. |
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| 作者姓名： | 严钢 汪秉宏 傅忠谦 周涛[ ] |
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| 作者单位： | 中国科学技术大学电子科学与技术系，中国科学技术大学非线性中心和近代物理系，中国科学技术大学电子科学与技术系，中国科学技术大学电子科学与技术系 安徽合肥，230026，安徽合肥，230026，安徽合肥，230026，安徽合肥，230026，中国科学技术大学非线性中心和近代物理系，安徽合肥，230026 |
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| 摘 要： | 本文提出了一个网络上的简单交通流模型。对于规则网络和无标度网络来说,都存在着从自由相到堵塞相的尖锐相变。相变点的值可以用来衡量一个网络处理信息的能力,它是由网络本身的拓扑结构决定的。随着网络节点N的增加,网络的相变点在带周期边界的规则网格是NO.5量级的,而对于无标度网络则几乎不变。模拟结果与理论分析很好地吻合。
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| 关 键 词： | 复杂网络 交通动力学 无标度网络 通信能力 |
Traffic Dynamics on Complex Networks |
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| Authors: | Gang Yan Bing-Hong Wang Zhong-Qian Fu Tao Zhou |
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| Institution: | 1.Department of Electronic Science and Technology, University of Science and Technology of China, Hefei Anhui, 230026, P. R. China. 2.Nonlinear Science Center and Department of Modern Physics, University of Science and Technology of China, Hefei Anhui, 230026, P. R. China |
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| Abstract: | In this paper,we propose a simple model for traffic dynamics on networks.For both homogeneous and heterogeneous networks,there exists a phase transition from free phase to congested phase.The value of transition point can be considered as a measurement of network communication ability,which is much affected by the topology of networks.It scales as N0.5 in square lattice while varies slightly with N in scale-free network when N is not very large,where N denotes the number of nodes.The simulation results agree with the theoretical estimation in quality. |
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| Keywords: | Complex Networks Traffic Dynamics Scale-free Networks Communication Ability |
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