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Multiuser Interference Mitigation in Noncoherent UWB Ranging via Nonlinear Filtering

Abstract

Ranging with energy detectors enables low-cost implementation. However, any interference can be quite detrimental to range accuracy. We develop a method that performs nonlinear filtering on the received signal energy to mitigate multiuser interference (MUI), and we test it over time hopping and direct sequence impulse radio ultra-wideband signals. Simulations conducted over IEEE 802.15.4a residential line of sight ultrawideband multipath channels indicate that nonlinear filtering helps sustain range estimation accuracy in the presence of strong MUI.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Sahinoglu, Z., Guvenc, I. Multiuser Interference Mitigation in Noncoherent UWB Ranging via Nonlinear Filtering. J Wireless Com Network 2006, 056849 (2006). https://doi.org/10.1155/WCN/2006/56849

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