APoS
So you have been asked to design for this: A predictive model won't even get you close here. The environment is too complex. You need...
Getting Started with Aruba Wireless
Let's start by talking about the hardware which comprises an Aruba wireless enterprise infrastructure. Although components can be...
Gathering Wall Attenuation Values for a Predictive Model
For a predictive model to be valuable, attenuation values for objects in the environment such as walls must be obtained. The tools needed...
Accredited Wireless Adjuster Training: How to troubleshoot about 80% of wireless with tools that co
The Wireless Adjuster course, from wireless industry veteran, Devin Akin, is described as training that teaches “WLAN best practice...
The 802.11 State Machine: Joining Your Friends
A station will search for a BSS to join by either active, passive scanning or both. In passive scanning a STA listens to Beacons and...
Wireless Roaming Part 2 - PMK Caching and Preauthentication
Two methods of secure roaming were introduced in 802.11i-2004: PMK Caching and Preauthentication. PMK caching is a method of roaming...
Wireless Roaming Part 1
The simplest form of roaming is reassociation. The client always makes the decision to roam based on proprietary criteria that are most...
802.11 Arbitration Part 2: Getting your marbles in the right bucket
Part Two: EDCA How is it different than DCF? Wireless is a shared medium. The fundamental method for sharing this medium is DCF,...
802.11 Arbitration: I could have been a contender.
Part One: DCF Wireless is a shared medium. The fundamental method for sharing this medium is DCF, Distributed Coordination Function. ...
Mind Your Channels: The not so polite world of wireless in 2.4 gHz
Since the introduction of 802.11g each channel in the 2.4 GHz spectrum is 20 MHz wide. Therefore, in the US it is recommend to use...