The Dark Room
But this begs the question: How does one benchmark really large WLAN configurations? It’s impractical to install a big system just to test and evaluate it, so a preferred approach, used in the design of everything from aircraft to nuclear weapons, might be to simulate the system, extrapolating to the real thing. This is the concept I set out to test.
So, what I did was borrow a VeriWave Inc. WaveTest system which I used to establish the simulation environment. I also got some time in a large, walk-in “RF cage,” which is formally known as a Faraday Cage, where I ran corresponding but not identical real-world tests. The Faraday Cage is made out of copper screen, and no RF energy gets in or out of it, allowing experiments to be run even with nearby WLAN and other systems in operation. I performed tests on enterprise-class systems from both Aruba Networks Inc. (Nasdaq: ARUN) and Meru Networks Inc. , also borrowed (consultants and analysts are notoriously cheap and/or broke, it seems). I then compared the two sets of results and assumed success would be indicated by a strong correlation in results between the two environments.
I’m still evaluating the mountain of data generated from the weekend’s worth of time spent on this project, but I’ll write this up over the next few weeks and post it for you here. My preliminary conclusion is that we’re going to get a lot of mileage out of the simulation route, and I’m excited about the potential here.
— Craig Mathias is Principal Analyst at the Farpoint Group , an advisory firm specializing in wireless communications and mobile computing. Special to Unstrung