A wireless device may select, based on a first sensing procedure, a first candidate resource set for one or more sidelink transmissions, trigger a second sensing procedure, for the one or more sidelink transmissions, based on one or more first resources of the first selected candidate resource set, and exclude one or more second resources from the one or more first resources based on the second sensing procedure and a reference signal received power (RSRP) of the one or more second resources. The wireless device selects, from the one or more first resources and based on the excluding, a second remaining candidate resource set for the one or more sidelink transmissions and transmit the one or more sidelink transmissions via one or more third resources of the second remaining candidate resource set.