Active network congestion Control (ACC) USES dropping packets to relax congestion which can not satisfy the current network.

在已有的主动网络拥塞控制机制(acc)中，通过丢包的方式缓减拥塞。

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However, some new issues such as network-induced time delay, network scheduling, multiple-packet transmission and dropping packets also appear.

但由于通讯网络的引入，使得网络化控制系统中存在如网络时延、调度的优化、数据的多包传输及丢失等新问题。

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