An automatic channel selection (ACS) process enables an access point to
determine a best channel available, i.e., the channel with a least amount
of interference, for it operation. When ACS is enabled, the access point
scans frequencies for all neighboring access points and their signal
strengths. Based on this data, the access point then determines which
frequency is least likely to be interfered with by these other access
points. The access point switches itself to this frequency and begins
operation. During normal operation, the access point may periodically
rescan the air space and reevaluate its current operating channel.
Preferably, every neighboring access point has its own channel, and the
co-channel interference levels should be low enough so that there is a
maximum coverage and high throughput for the network. If these
characteristics cannot be achieved, the access point may then adjust its
power automatically to reduce the interference level in the network. This
automatic power adjustment (APA) feature preferably operates across a set
of access points, each of which has the function. In this manner, the
transmitting power of the neighboring access points in the wireless
network is "cooperatively" adjusted to minimize the channel interference
and maximize the coverage and throughput for the network. A method of
determining optimal access point locations for access points that perform
the ACS and APA functions is also described.