How Defective are your Wi-Fi Networks?
More than 90% of enterprise Wi-Fi network deployments are non-optimal = too expensive.
Many Wi-Fi network don’t meet customer requirements.
Circular Wi-Fi Cells
Wi-Fi network design doesn’t work the way that many WLAN vendors suggest.
For example, take a look at the circular cells painted by the vendors in their Wi-Fi network design diagrams.
Are RF cells really circular?
Of course not.
So why do so many people draw them that way?
This reveals ignorance in the Wi-Fi network supplier or designer, or both; and an assumption that the buyer will accept an incompetent Wi-Fi network design.
Four APs into Three Channels Doesn’t Go!
Here’s a starter for ten: how do you arrange Wi-Fi cells in groups of 4 – at the corners of a square – when you can use only three non-overlapping channels in the 2.4GHz band? – channels 1, 6 and 11?
If anyone suggests using channel 1, 4, 7, 11 .. or 1, 7, 13 ..
.. or if channels 2, 3, 4, 5, 7, 8, 9, 10, 12, 13 or even 14 are in use ..
.. or any other combination: call us.
What’s that Cell Boundary?
Another question: What does the boundary of that circle represent? Is it:
- Signal Strength (dBm)?
- Signal-to-Noise Ratio (dB)?
- Associated data rate (Mbps)?
- The point where RF stops travelling?
If the cell boundary isn’t labelled, that boundary means absolutely nothing.
Look carefully at your vendor’s Wi-Fi network design guides. Be critical!
Don’t forget: there should be no circles. No squares. No other regular shapes.