Operations include estimating a channel utilization, for a target wireless device, corresponding to a set of wireless signals that are received and/or transmitted by another wireless device. One or more relationships between detected signal strength values, measured channel utilization values, and/or actual channel utilization values are determined. The estimation is made based on applying detected signal strength values received at other wireless devices, measured channel utilization values at other wireless devices, and/or actual channel utilization values at other wireless devices to the relationships.