A wireless local area network (WLAN) control system includes network elements (such as access points and clients) and a centralized dynamic performance management system. The network elements measure signal attenuation in communications with other WLAN network elements. The dynamic performance management system receives signal attenuation data from the network elements, and determines a frequency and/or transmission power level for each of the network elements to reduce interference with the other WLAN network elements. The dynamic performance management system also transmits instructions to each network element to control the frequency and/or transmission power level of the network elements.