Simulation study of bufferbloat problem on WiFi access point

In home networks, a variety of smart devices are connected to a WiFi access point (AP) and the oversized buffer of the AP causes high latency/delay jitter and reduced network throughput (known as the bufferbloat problem). To mitigate this problem, appropriate active queue management (AQM) algorithms should be implemented at the AP. In this paper, we conduct extensive simulation study on the performance of CoDel, which is one of the most effective AQMs. Simulation results demonstrate that CoDel with carefully configured parameters can provide comparable throughput and shorter round-trip time compared to the tail drop queue management algorithm.