【摘要】 该文以NS2为仿真工具,在LINUX环境下,通过仿真实验验证了在特定的链路队列管理模式下,若干个TCP流在简单链路中所表现出的非线性动力学行为。文章通过采用计算最大Lyapunov指数的方法测试初值敏感性、针对给定仿真条件下出现的奇异吸引子计算其关联维、采用绝对值法和R/S法证明其自相似性这3个方面对TCP流拥塞窗口所表现的混沌特性进行了具体的研究分析。所有这些分析结果若能在对网络相关协议进行改进和编写时加以参考,将有助于提高网络的服务质量。更多还原

【Abstract】 By using the simulation tools——NS2 and LINUX,this paper analyzes the nonlinear dynamic behaviors of the network traffic under certain queue management mechanism.The chaotic behavior of the network traffic is also analyzed based on the sensitivity to initial conditions via computing the Lyapunov exponent,strange attractor via computing the correlation dimension and self-similarity through absolute value method and R/S method.If we take account of these characteristics when writing and improving network protocols,these results will be helpful for improving the quality of service of the Internet.更多还原