JOURNAL OF COMMUNICATIONS (JCM)
ISSN : 1796-2021
Volume : 1    Issue : 5    Date : Auguest 2006

Analysis of UWB Interference to MPSK Narrowband Receivers
Dongsong Zeng, Amir I. Zaghloul, Annamalai Annamalai and E. F. Charles Laberge
Page(s): 9-16
Full Text:
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Abstract
This paper studies the in-band interference of time-hopping spread spectrum (TH-SS)
ultra-wideband (UWB) signals to narrowband receivers. Based on the analysis of general power
spectral density (PSD) of TH-SS UWB signal, the interference of UWB signal is partitioned into two
parts: (1) additive white Gaussian noise interference, and (2) jamming tone interference. Following
this 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 to UWB interferences is
proposed and corresponding simulation results are demonstrated. It is shown that as the number
of in-band jamming tones increases, the UWB interference effect tends to be closer to the effect of
the equivalent Gaussian noise. When there is only one UWB tone interferer within the narrowband
receiver bandwidth, and when the signal-to-interference-and-noise ratio is higher than a certain
value, the narrowband symbol error rate decreases as the relative tone power portion in the overall
interference and noise power increases.

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