On the Performance Supremum of CFO Based Physical Layer Identification

Table 1

List of variables and notations.

Notation	Definition
	Class (transmitter) number
	CFO range
	Number of multipath components
	Signal-to-noise ratio (SNR)
	The length of training sequence
	Complex conjugate operator
	Imaginary part of complex number
	Real part of complex number
	Q-function
	Supremum of set
	First-order derivative
	Second-order derivative
	Inverse function
	Floor function