Abstract—This paper studies the in-band interference oftime-hopping spread spectrum (TH-SS) ultra-wideband(UWB) signals to narrowband receivers. Based on theanalysis of general power spectral density (PSD) of TH-SSUWB signal, the interference of UWB signal is partitionedinto two parts: (1) additive white Gaussian noiseinterference, and (2) jamming tone interference. Followingthis framework, a novel analytical symbol error rate (SER)evaluation method for binary phase-shift keying (BPSK)and M-ary phase-shift keying (MPSK) signals subject toUWB interferences is proposed and correspondingsimulation results are demonstrated. It is shown that as thenumber of in-band jamming tones increases, the UWBinterference effect tends to be closer to the effect of theequivalent Gaussian noise. When there is only one UWBtone interferer within the narrowband receiver bandwidth,and when the signal-to-interference-and-noise ratio is higherthan a certain value, the narrowband symbol error ratedecreases as the relative tone power portion in the overallinterference and noise power increases.

Index Terms—Symbol Error Rate, UWB, Interference,Narrowband, BPSK, MPSK.

Cite: Dongsong Zeng, Amir I. Zaghloul, Annamalai Annamalai, and E. F. Charles Laberge, "Analysis of UWB Interference to MPSK Narrowband Receivers," Journal of Communications, vol. 1, no. 5, pp. 9-16, 2006.