Interference coordination scheme between WiFi and Zigbee networks

WiFi and Zigbee sensor networks have their own usage and market but they both work in ISM frequency bands, thus causing coexistence issues. The difference of their transmission powers makes the problem even worst, as Zigbee transmission power is overruled by WiFi nodes. In this paper, we propose an interference coordination scheme based on the infrastructure operational mode. Our scheme uses the inherent feature of Zigbee to generate the channel scan report and communicate to the server connecting both networks, which in return directs the nodes to decrease their power in order to decrease the interference between both networks.