I know there are only 3 non-overlapping channels in the b specification, but find it hard to find out the "dangers" of having overlapping channels. At my university, some of the buildings required more than 3 channels, therefore we had to overlap some of the Access Points(ie. we use channel 1 in the basement of the libary and channel 2 on the 4th floor).
Is this degrading my network without me knowing it? If so, how? I haven't had any complaints from the student body.