Foreword
The foreword for the previous edition of this book was written by my CWNP co-founder Devin Akin. The first sentence reads, “Wireless LANs seem to be everywhere these days.” Devin was right, but just look at how much the Wi-Fi space has changed since that book (the second edition) was published in April 2009! The foreword didn't even mention 802.11n. The new amendments 802.11ac and 802.11ad were not remotely in the picture yet. And today, Wi-Fi doesn't seem to be everywhere—Wi-Fi is everywhere. It is indeed a wonderful time to be in Wi-Fi.
For some context, let's look at what else wasn't there in early 2009. For starters, we've already mentioned 802.11n, but to be clear, 802.11n was almost ratified at that point. When that amendment was ...
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