Open Access

A Comprehensive Evaluation of Indoor Ranging Using Ultra-Wideband Technology

EURASIP Journal on Wireless Communications and Networking20072007:086031

https://doi.org/10.1155/2007/86031

Received: 1 May 2006

Accepted: 15 February 2007

Published: 12 April 2007

Abstract

Ultra-wideband technology shows promise for precision ranging due to its fine time resolution to resolve multipath fading and the presence of lower frequencies in the baseband to penetrate walls. While a concerted effort has been conducted in the extensive modeling of the indoor UWB channel in recent years, to our knowledge only two papers have reported ranging performance, but for limited range and fixed bandwidth and center frequency. In principle, boosting power can guarantee connectivity between transmitter and receiver, but not precision due to the distorting effects of walls and other objects in the direct path. In order to gauge the limits of UWB ranging, we carry out 5000 measurements up to an unprecedented 45 m in non-line-of-sight conditions in four separate buildings with dominant wall material varying from sheet rock to steel. In addition, we report performance for varying bandwidth and center frequency of the system.

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Authors’ Affiliations

(1)
Wireless Communication Technologies Group, National Institute of Standards and Technology

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Copyright

© C. Gentile and A. Kik. 2007

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.