Performance Comparison of UWB Pulse Modulation Schemes under White Gaussian Noise Channels

Table 2

Comparison of various pulse modulation techniques in terms of bandwidth, spectral line, noise sensitivity, transceiver complexity, and pulse energy variance.

	Bandwidth requirement; (normalized)	Power requirement; (normalized)	Noise; sensitively	Spectral line; power distortion	Transceiver complexity	Pulse energy; variance
PAM	1	1	Highest; (1 dimension)	Yes	Low	𝑀^2−161𝛾𝑠
PPM	𝑀log2𝑀𝜏𝑇𝑠	2𝑀log2𝑀	Lowest; (M dimensions)	Yes; (lower)	Highest; (by M)	1𝛾𝑠
OOK	1	1	Very high	Yes; (high)	Lowest	1𝛾𝑠
BPSK	𝜏𝑇𝑠	1.12	Lower; (M/2 dimensions)	No	High; (by M/2)	1𝛾𝑠