基于网络带宽预测的变采样周期调度算法

Variable Sampling Period Scheduling Algorithm based on Network Bandwidth Prediction

针对网络带宽受限的网络控制系统,提出了基于网络带宽预测的变采样周期调度算法,采用监测得到的系统的性能指标,通过计算得到绝对误差积分参数IAE作为预测带宽资源分配的依据,实现带宽资源动态分配.利用采样周期与网络带宽之间的关系进行采样周期计算,并通过仿真验证了系统动态带宽分配的有效性.

In view of the effect of the limited network bandwidth resources on networked control system, scheduling algorithm with variable sampling period is proposed based on the prediction of network bandwidth. The performance of the system is obtained by monitoring dynamic performance index IAE to realizes the system of network resources allocated dynamically. The sampling period is calculated by using the relationship between the sampling period and network bandwidth. Finally, the effectiveness of the system dynamic bandwidth allocation is validated through simulation.