I received my copy of the IEEE 802.11 Handbook 2nd edition on April 1st, 2005. All experienced Wi-Fi professionals should have this book and those new to Wi-Fi should learn the basics elsewhere.
What follows is a comparison of the two editions.
The same two authors are credited with authoring both editions. Both have significant IEEE 802.11 standards committee histories and business involvements. The authors dedicated the 1st edition to their parents and the 2nd to their wives. Times change.
The 2nd has twice as many pages, and is twice as thick. It is an extra inch wide and tall but with a larger font that results in the same amount of information on each page. Thus the content looks to have doubled.
All the old chapters are carried forward with nominal changes. The 2nd has a very modest glossary and a decent index; the 1st had neither.
New chapters in the 2nd include 802.11i, 802.11e, 802.11h, 802.11d, 802.11F, 802.11j, 802.11g, and 802.11n, in that order but mingled with the old chapters. The entirely new chapters are 4, 5, 6, 7, 8, 13, 14, and 15.
Virtually all the graphics of the 1st are carried forward in the 2nd and most became grainier. Most typos and awkward English in the 1st are corrected in the 2nd.
Someone formatting the 2nd went overboard globally replacing words and phrases with acronyms or abbreviations. For example all instances of "station" became "STA" regardless of context.
Most other changes are additional paragraphs or additional sentences added to existing paragraphs. Rarely is a sentence modified. Here are the 2nd edition pages that have changes in the chapters carried over from the 1st: 5, 14, 26, 27, 33-34, 40, 52-55, 57, 60-72, 74-86, 89, 92-93, 223, 225-226, 228, 239-240, 258-260, 267, 271, 273, 275-284, 289-290, 344-347. If you have a 1st edition you can match the paragraphs up with the 2nd edition and the new material will jump off the page.
The result is a mix of voices from 1999 and 2005. Understanding this makes it easier to forgive a leftover remark from 1999 that would be a glaring mistake if penned in 2005.
The Handbook is seldom technically wrong. The 1st edition introduced language not found in the IEEE 802.11 standard that can both help and hinder accurate understanding of the technology. None of this was improved on in the 2nd edition.
The 1st edition was my only 802.11 resource for several years. When I began reading the IEEE 802.11 document and its amendments I had to stop reading the Handbook in order to not confuse the two. Perhaps one day I can write about what I would wish to see changed in a third edition.
I found the 2nd edition new chapters to be very informative and alone worth the price of the book. So enjoy -- but be careful.
I hope this helps. /Criss Hyde
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Freelance Technical Editor for The CWNP Program