An apparatus in a node of a wireless network for setting the data rate for sending
data to a remote node, and a method for setting the data rate. The method includes
receiving a packet from the remote node, determining a measure of signal quality
for the received packet; and selecting the data rate for communicating to the remote
node according to at least the determined signal quality. The measure of signal
quality is a measure of the EVM of the received packet. One implementation conforms
to one or more variants of the IEEE 802.11 standard that uses OFDM packets.