Thumbnail
Access Restriction
Subscribed

Author Zheng Li ♦ Dehaene, W. ♦ Gielen, G.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Geometry ♦ Base stations ♦ Costs ♦ Optimization methods ♦ Position measurement ♦ Sensor phenomena and characterization ♦ Sensor systems and applications ♦ Timing ♦ Batteries ♦ Ultra wideband technology
Abstract In this paper, we propose a 3-tier ultra wide-band indoor localization system for autonomously powered sensor network applications. It consists of a large number of cost-effective tags, a number of cheap and low-power hubs and few synchronized base stations. Using the UWB characteristics and the hierarchical scheme, the localization system enables ultra-low-power, autonomous tags and precise positioning. We present how ambiguous solutions (coordinates and transmission time of an unknown node) can be eliminated with the help of the proper geometry of 4 reference nodes. A method for optimizing the number and placement of hubs is proposed. Different positioning algorithms are discussed and compared based on the position accuracy a.f.o range errors. We determine the optimal algorithm for different scenarios. Simulations are conducted to investigate the performance degradation due to timing errors.
Description Author affiliation: Katholieke Univ. Leuven Kasteelpark Arenberg, Leuven (Zheng Li; Dehaene, W.; Gielen, G.)
ISBN 9781424405206
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-09-24
Publisher Place Singapore
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 5.62 MB
Page Count 6
Starting Page 580
Ending Page 585


Source: IEEE Xplore Digital Library