802.11 – Page 2 – Frame by Frame

WLPC 2022: 802.11ax Channel Access Talk

In this WLPC Phoenix talk I describe in detail how 802.11ax stations contend for channel access, using a combination of new and old features of 802.11. The idea was to show the full picture of what is actually happening in the air in a modern WLAN, rather than only focusing on the nen features ofContinue reading “WLPC 2022: 802.11ax Channel Access Talk”

7SIGNAL Webinar: Wide Channel Contention

In this 7SIGNAL webinar I described how 802.11 contention is different when wide channel widths are in use, and how that has evolved with each new PHY up to 802.11ax.

Roaming Analysis using only a Mac and Wireshark

There are many ways to examine the roaming performance of a Wi-Fi client. Perhaps the gold standard is to follow the client with a laptop running Omnipeek and several Wi-Fi adapters all capturing frames on different channels. I’m also impressed with 7signal’s recent update to Mobile Eye which now logs roaming data as well. ButContinue reading “Roaming Analysis using only a Mac and Wireshark”