Sorting Out BSS Color, Spatial Reuse, and Dual NAV

This post first appeared on We usually only hear about BSS Coloring in the marketing of Wi-Fi 6, but Spatial Reuse and Dual NAV are related important features of 802.11ax. Let’s sort them out, but first some background. All 802.11 stations (AP’s and clients) must make sure that the channel they are operating onContinue reading “Sorting Out BSS Color, Spatial Reuse, and Dual NAV”

What’s Different About 802.11ax in 6 GHz

There has been some consternation that 802.11ax should have a greenfield mode in 6 GHz, leaving behind all the protocol overhead used for backwards compatibility in the 2.4 and 5 GHz bands. This mythical mode could also have fantastic new capabilities that would now be possible without legacy PHY requirements. 6 GHz is an opportunityContinue reading “What’s Different About 802.11ax in 6 GHz”

Wi-Fi: What We Need and What We Keep Getting

No technology is perfect, but for most of my career in Wi-Fi there has been a persistent set of problems that continue to have no resolution in sight. They could be fixed, other wireless protocols have solutions for some of them, and there have been attempts to fix them but the results are so watered-downContinue reading “Wi-Fi: What We Need and What We Keep Getting”