A Novel NBI Suppression Scheme in UWB Ranging Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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Computers and Electrical Engineering
NBI suppression UWB system based on novel non-linear chirp pulses
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Non-linear chirp based UWB waveform design for suppression of NBI
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Adaptive Rake receiver based on the nonlinear ACM technique
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This letter presents an analysis of the effect of narrowband interference (NBI) on ultrawideband (UWB) time-hopping (TH) systems in the presence of multipath fading using both analytical derivations and simulations. Our analysis demonstrates that NBI may be an issue in some instances. In addition, we suggest three NBI suppression schemes for combating NBI in UWB TH systems. Single-link performance of these schemes in conjunction with a Rake-type receiver structure is estimated for both the ideal all-Rake receiver and the simpler partial-Rake receiver in an indoor environment. Two UWB pulse shapes that meet the Federal Communications Commission rules for UWB communications are considered in the investigation.