Fuzzy-logic-based channel selection in IEEE 802.22 WRAN

IEEE 802.22 WRAN standard does not specify algorithm for selecting operating channel from backup channel list and prioritizing the backup and candidate channels. Because all the channels in the backup and candidate channels list are not with the same properties, selecting channels randomly from the list may decrease the networks performance. We propose an approach of ranking channel according to behavior of primary users on the channel and RSSI value. It utilizes fuzzy-logic-based algorithm for prioritizing channels in the backup and candidate channels list. Performances of the networks with fuzzy-logic-based channel selection and random channel selection are compared.