- Research Article
- Open Access
Multiuser Interference Mitigation in Noncoherent UWB Ranging via Nonlinear Filtering
EURASIP Journal on Wireless Communications and Networking volume 2006, Article number: 056849 (2006)
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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