The __ standard provides for bandwidths of 54Mbps in the 2.4GHz frequency spectrum using OFDM or DSSS encoding. Because it operates in the same frequency and can use the same modulation as 802.11b, the two standards are compatible. However, you should know that there are some interoperability concerns to be aware of. 802.11b devices are not capable of understanding OFDM transmissions; therefore, they are not able to tell when the 802.11g access point is free or busy. To counteract this problem, when an 802.11b device is associated with an 802.11g access point, the access point reverts back to DSSS modulation to provide backward compatibility. This means that all devices connected to that access point will run at a maximum of 11Mbps. To optimize performance, you should upgrade to all 802.11g devices and set the access point to G-only. One additional concept you need to know about when working with 2.4GHz wireless networking is channels. Although 14 channels have been defined, youre only allowed to configure your wireless networking devices to the first 11. When you install a wireless access point and wireless NICs, they will all auto-configure their channel and this will probably work okay for you. If you are experiencing interference, changing the channel might help. And if you have multiple, overlapping wireless access points, you will need to have non-overlapping channels. The three non-overlapping channels are 1, 6, and 11.