drn,
Airwave is an optional piece of management software. It could poll the controller without any specific entries on the controller pointing to it, besides an snmp read string, so there is no way to know if it exists in your network.
You could type the following to see if it is somehow defined:
show configuration | include mgmt-server
If there is output with an ip address, try to login to that server using a browser. If there is nothing there, you probably do not have Airwave. If you don't have Airwave, you should work with the vendor to determine your licensing requirements.