A communication device generates an informational element (IE) to include an indication of a minimum modulation and coding scheme (MCS) allowable in a wireless communication network. The minimum MCS is from an ordered set of multiple MCSs defined by a communication protocol utilized by the wireless communication network. The indication of the minimum MCS also indicates use of any MCSs below the minimum MCS in the ordered set of MCSs is not allowed in the wireless communication network. The communication device generates a data unit that includes the IE.