Open Access

Multiuser Interference Mitigation in Noncoherent UWB Ranging via Nonlinear Filtering

  • Zafer Sahinoglu1 and
  • Ismail Guvenc2
EURASIP Journal on Wireless Communications and Networking20062006:056849

DOI: 10.1155/WCN/2006/56849

Received: 1 September 2005

Accepted: 13 June 2006

Published: 13 September 2006

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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Authors’ Affiliations

(1)
Mitsubishi Electric Research Labs
(2)
Department of Electrical Engineering, University of South Florida

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Copyright

© Z. Sahinoglu and I. Guvenc 2006

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.