> 1. Is there anybody else out there thinking along similar lines? I'm not aware, but that may not mean much :) > 2. What would be the best hardware/software stack to base this work > on? > > I'm thinking the best driver for rate control experimentation would > be ath9k, right? If so then a TP-Link TL-WA901ND router (apparently > based on Qualcomm QCA956x SOC) with OpenWrt, and a TP-Link TL-WDN4800 > PCIe card (apparently based on Atheros AR9380 with PCI ID 168c:0030) > for my desktop sounds like a good combo, no? Seems reasonable, yes. You wouldn't have VHT, but HT has enough search space to keep you busy ;-) > But would I have to run a custom kernel on my desktop then (or can I > somehow get by with an Ubuntu standard kernel)? You could use a backported driver. https://backports.wiki.kernel.org/ johannes