Wialan Technologies Inc (WLAN)

[retiredanalyst]

Here is an interesting and informative piece on Wifi written by Cisco Systems. It seem to confirm exactly what I have been asserting all along......and that is that just because a access point has a powerful transmitter and it's signal can be received far from the access point, doesn't mean the laptop, tablet or smartphone's wifi transmitter has the power to send packets back to the access point. No real sense to have a powerful access point if it's transmit range is much longer than the transmit power of it's connected devices. Devices not only must receive packets, but must be able to transmit packets.

Read this informative piece on Wifi, and specifically on page 2 where it discusses wifi Range Considerations, scroll down and read the paragraph's directly below Figure 11-2 Titled, Transmit Power Increases Provide Greater Range by Increasing Signal Strength. Here they discuss the importance of the transmit power of all the connected devices, not just the access point. To quote Cisco in this paragraph, "To improve the overall communications of 802.11 signals, which occur in both directions between the access point and client radio's, you will need to increase the transmit power of the client radios as well. "In fact, it is usually not useful to increase the transmit power of the access points because the client radios are almost always operating at much lower transmit power."

http://www.ciscopress.com/articles/article.asp?p=1613796