Time-Division Multiarray Beamforming for UAV Communication

Table 2

Notations of symbols in the paper.

Symbol	Meaning	Symbol	Meaning
	Positive integer field		Complex number field
	Transpose		Hermitian transport
	Number of antenna arrays		Spacing of antenna arrays
	Number of antennas in an array		Spacing of array elements
	Wavelength of the carrier		Speed of light
	Carrier frequency		Power for transmitting symbols
	Power for AN		Normalized QPSK constellation mapping
	Symbol duration		Total number of symbols in a packet
	The noise variance received by LU		Steering vector from LU to the nth antenna array
	Steering vector from the nth antenna array to Eve		Noise variance received by Eve
	Achievable rates of LU		Average SINR of Eve
	Secrecy rate		Achievable rates of Eve
	Symbol error rate		Bit error rate