Analysis of jamming on DS-UWB system

This paper presents ultra wideband (UWB) jamming studies in additive white Gaussian noise (AWGN) channel analytical approach for UWB system performance in the presence of partial band jamming (or interference), whose special case is tone jamming, is presented. In UWB case, most of the jamming (interference) could be seen as partial band jamming due to the extremely large inherent bandwidth of the desired signal. The given modifications for the existing formulas, which originally have applied for wideband system with narrowband interference, are verified with the corresponding simulated results in UWB context. The study has focused on direct sequence (DS) based single-band UWB system that uses binary pulse amplitude modulation (BPAM) as a data modulation scheme. Jamming (interference) is assumed to be bandlimited and Gaussian distributed, and the presented analytical expressions allow freely spacing and arbitrary bandwidth for the interfering signal. It has been noticed that the general bit error rate (BER) formulas for wideband systems can also be applied to UWB to calculate the upper bounds for the performances using real UWB system parameters in very simply way through spectral characteristics