A perspective on IoT and Wi-Fi coexistence (WLAN Professionals Conference EU 2015)

Yours trully unexpectedly ended up talking at WLAN Professionals Conference Europe 2015 on a subject of IoT and Wi-Fi. I heard good feedback after the session, so you might be interesting in watching 16-min video yourselves. (Disclaimer: presentation on my own behalf and may not reflect the official position of my employer). If you find some context in my video unclear, you might want to view the video of David Coleman, as my talk was largely provoked by his presentation (the current state of IoT allows for more than one perspective on things). Let me know, what’s your perspective on this matter in comments!

BTW, it was my second time there (and a second ad-hoc talk) at WLPC EU, and I absolutely enjoy it. If you reside in Europe and you are into Wi-Fi, you want to be there next time! There were many interesting sessions at the conference, you can view all the recordings here: https://vimeo.com/keithrparsons/videos

How long will it take to h@ck y3r Pa$$w0rd?

Ever been annoyed by those password policies that say “One digit, one uppercase, one lowercase” and then cap your password at, say 12 characters? Are those passwords secure these days, when cheap processing power is freely available ? A while ago I’ve stumbled upon an article where, among other info, some really interesting data was shared about how long it takes to crack standard crypto hashes used for password encryption in WLANs, web sites and operating systems. This prompted for a refresher in password security and brute-forcing performance. The numbers are worth sharing.


WLAN Channel Management F1 Style: Part 1 of 3

We keep saying that overlapping channels are not good – they create unnecessary interference, contention, or both (depending on the distance between the APs). It is a general recommendation to stick to non-overlapping channels and actively hunt and eradicate anyone who overlaps. However, are overlapping channels always bad?

A typical example of a channel that overlaps with every other!

In this 3-part series I’ll be talking about some channel tuning techniques that may allow cramming more channels in the RF plan, have them overlap – and still get overall better network performance. A valuable LinkedIn member Eduard Garcia-Villegas (who is doing some interesting research in WLANs) had recently provided me with some interesting papers that offer theoretical foundations and practical proof behind this. What does it have to do with F1? Let’s find out!