A deep dive into why Wi-Fi kind of sucks
I build public Wi-Fi networks, you've probably used one of them. AMA if you have Wi-Fi questions.<p>To say it "sucks" is a bit harsh. It's delivering multiple hundreds of Mbps to you via an unlicensed contention-based medium.  The air interface is like sending packets over a noisy Ethernet hub; it's impressive it works as well as it does.  That said, this article's a good primer on some of the protocol's fundamental challenges.<p>In the coming years we'll hear more about 802.11ax, which is thankfully focused on efficiency vs. raw numbers, but likely won't be ratified until 2019/2020.