External Interference-Aware Distributed Channel Assignment in Wireless Mesh Networks
Interference is one of the major causes for performance degradation in wireless networks. Channel assignment algorithms have been proven successful to decrease the network-wide interference by using non-overlapping channels for otherwise interfering links. However, external co-located networks and devices are usually not considered in the channel assignment procedure, since they are not under the control of the network operator and their activity is therefore hard to capture. In the authors' work, they fill this gap by additionally considering the interference resulting from external devices. The novelty of this approach is that not only co-located IEEE 802.11 networks are captured, but also other sources of interference that utilize the same frequency band.