Before revision: Preference is usually defined by the RMS power of the reference signal constellation (this is valid for both Single and Multicarrier modulations) EVM is defined as a percentage in a compatible way: The definition of EVM depends heavily on the standard that is being used, for example in 3GPP LTE the relevent documents will define exactly how EVM is to be measured.
After revision: Preference is usually defined by the RMS power of the reference signal constellation (this is valid for both Single and Multicarrier modulations) EVM is defined as a percentage in a compatible way: The definition of EVM depends heavily on the standard that is being used, for example in 3GPP LTE the relevant documents will define exactly how EVM is to be measured.