We consider transport layer approaches for achieving high rate, low delay communication over edge paths where the bottleneck is an 802.11ac WLAN. We first show that by regulating send rate so as to maintain a target aggregation level it is possible to realise high rate, low delay communication over 802.11ac WLANs. We then address two important practical issues arising in production networks, namely that (i) many client devices are non-rooted mobile handsets/tablets and (ii) the bottleneck may lie in the backhaul rather than the WLAN, or indeed vary between the two over time. We show that both these issues can be resolved by use of simple and robust machine learning techniques. We present a prototype transport layer implementation of our low delay rate allocation approach and use this to evaluate performance under real radio conditions.

我们考虑在瓶颈是802.11ac WLAN的边缘路径上实现高速率，低延迟通信的传输层方法。我们首先表明，通过调节发送速率以维持目标聚合级别，可以在802.11ac WLAN上实现高速率，低延迟的通信。然后，我们解决生产网络中出现的两个重要的实际问题，即（i）许多客户端设备是非root用户的手机/平板电脑，并且（ii）瓶颈可能在回程中，而不是在WLAN中，或者实际上在两者之间有所不同随着时间的推移。我们证明这两个问题都可以通过使用简单而强大的机器学习技术来解决。我们介绍了低延迟速率分配方法的原型传输层实现，并使用它来评估实际无线电条件下的性能。