WLPC 2026: Wi-Fi 7 Channel Access
This talk is a follow-up from my previous WLPC talk on Wi-Fi 6 Channel Access, with a particular focus on channel access methods involving MLO.
Frame by Frame
A blog about wireless networking from Jim Vajda, CWNE #183
Latest posts
WLPC 2025: OFDMA: Myth or Mainstay
In this talk I share my findings from testing real-world OFDMA implementations.
WLPC 2024: Rethink Your Uplink
This talk covers issues with 6 GHz LPI client uplink performance.
Wi-Fi Info iOS Shortcut
With the public release of iOS 17 today, you can take advantage of some really useful Wi-Fi connection information exposed via shortcuts. Years ago, Apple stripped access to this data to 3rd party apps, buried it in Settings.app, and removed some of it entirely. This resulted in much gnashing of teeth for those of us Continue reading "Wi-Fi Info iOS Shortcut"
Data Rates are Dead
With the introduction of 802.11ax and its hundreds of new data rates, it s time to start looking at the MCS Index to better understand link quality. Data rates are now too easy to misinterpret, particularly if, like me, you first learned about Wi-Fi in the days when the number of available data rates was small Continue reading "Data Rates are Dead"
A Look at a Real World Thread Network
Thread is a fast growing wireless protocol for low power IoT networks. It s a feature of Matter, which can also use BLE and Wi-Fi. Similar to Zigbee, Thread uses 802.15.4 for its PHY and MAC, but an important difference is that it uses 6LoWPAN for the network layer, so IPv6 addressing is used for all Continue reading "A Look at a Real World Thread Network"
WLPC 2023: Wi-Fi 6 in the Wild
In this brief WLPC Phoenix talk I presented some surprising real-world data gathered from 7SIGNAL Sapphire Eye and Mobile Eye on the major new features in Wi-Fi 6, 1024 QAM, OFDMA, and 6 GHz.
7SIGNAL Webinar: Enough FUD, Public Wi-Fi is Safe
In this 7SIGNAL webinar I shared my opinions on the current security situation with public/guest Wi-Fi. Many of the problems from years ago are mostly resolved, all without much change in how guest Wi-Fi is deployed today. How can that be? Watch to find out.
A Review of the GL.iNet Slate AX Travel Router
As a wireless engineer who spends a good amount of time on the road for work and family trips, I m often unhappy with the quality of the Wi-Fi in hotels, Airbnb s, and shared workspaces I find myself in. In many of those places, deploying my own AP is a good solution when I can do Continue reading "A Review of the GL.iNet Slate AX Travel Router"
7SIGNAL Webinar: Unlocking OFDMA
In this 7SIGNAL webinar I discussed the reality of OFDMA in Wi-Fi 6, dispelled some of the marketing myths, and shared some thoughts on how Wi-Fi can take better advantage of it in the future.