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 channels 1, 6 and 11 to get maximum spectral use and to avoid deploying channels that will interfere with one another. To see why take a look a figure 1. Figure 1 STA's with overlapping channels will not defer to each when transmitting and will therefore, cause CCI (co-channel interference) which results in high retries and possible channel sat