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研究了带有延迟时间补偿的模糊变结构控制算法 ,分析了模糊变结构控制中积分因子对于时延因子的补偿机理 ,并基于网络拥塞路由器中TCP连接的线性化模型设计了适用于主动队列管理的时延控制算法 .最后讨论了该控制算法的实现问题和参数整定 ,进行了仿真实验 .对于TCP主动队列管理的性能分析和比较试验表明 ,本算法在RTT和TCP会话数量变动时保持了良好性能和鲁棒性 ,在丢包率、吞吐量和缓冲波动方面相比其他类似方案有明显的性能优势 .
The fuzzy variable structure control algorithm with delay time compensation is studied. The compensation mechanism of the integral factor and the delay factor in the fuzzy variable structure control is analyzed. Based on the linear model of TCP connection in the network congested router, The delay control algorithm is discussed.Finally, the realization of the control algorithm and parameter tuning are discussed and the simulation experiments are carried out.Analysis and comparison of TCP active queue management shows that the algorithm keeps good when the number of RTT and TCP sessions fluctuates Performance and robustness, with significant performance advantages over other similar solutions in terms of packet loss rate, throughput, and buffer fluctuations.