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主动队列管理 (ActiveQueueManagement,AQM)技术作为Internet拥塞控制的一种有效方法 ,对于提高In ternet的服务质量具有十分重要的作用 .本文根据TCP拥塞控制算法基于数据包丢失的窗口变化机制 ,设计了一种基于模糊逻辑的主动队列管理算法 .该算法依据路由器中队列长度的变化情况 ,根据一定的模糊自校正原则来调整数据包的丢弃概率 ,从而使路由器中的队列长度稳定在参考值附近 .仿真结果表明该算法不但十分有效 ,而且对不同的网络状况具有很好的适应能力 .
Active Queue Management (AQM) technology as an effective control method for Internet congestion plays an important role in improving the service quality of In ternet.According to the mechanism of TCP congestion control algorithm based on the window change mechanism of packet loss, Based on the fuzzy logic of the active queue management algorithm.According to the change of queue length in the router, the algorithm adjusts the packet discard probability according to a certain fuzzy self-tuning principle, so that the queue length in the router is stable around the reference value. The results show that the algorithm is not only very effective, but also has good adaptability to different network conditions.