In modern urban areas it is very common to experience a lot of Wi-Fi spectrum congestion in the 2.4GHz and 5GHz bands. High density of omnidirectional antennae per unit area directly translates to low SNR and thus bad wireless performance of our nodes. In the case where we only control one wireless node, not much can be done. We can scan the surroundings and choose the channel with a maximal SNR. But with a node database system, we can simultaneously optimize the spectrum allocation (both in terms of bandwidth as well as the center frequency, i.e. channel) across different nodes. SWOON is an algorithm that would maximize channel capacities over multiple nodes in close proximity.