TCP主动队列管理的计算方法

Study on Algorithm of TCP Active Queue Management

将TCP的流量控制过程等效为二阶线性时变系统,采用不敏感控制对象参数的内环位置补偿(SP)结构和负载扰动的控制器设计方法,设计出一种新的AQM算法.仿真试验表明,主动队伍管理算法的稳态和瞬态性能都优于与它具有相同实现复杂度的RED和PI算法,并在负载扰动和参数变化时具有较强的鲁棒性.

In this study, authors model the TCP flow process as the two order linear varying-time system, and design a novel AQM algorithm based on the series and position feedback compensation mode, which is insensitive to the parameters of the plant and load disturbance. The simulation results show that it s transient and steady performance are superior to ones of RED and PI algorithms. It is also indicated that, SP algorithm is very robust against load disturbance and parameter variance.