NDLI: Ranging With Ultrawide Bandwidth Signals in Multipath Environments

Content Provider	IEEE Xplore Digital Library
Author	Dardari, D. Conti, A. Ferner, U. Giorgetti, A. Win, M.Z.
Copyright Year	1963
Abstract	Over the coming decades, high-definition situationally-aware networks have the potential to create revolutionary applications in the social, scientific, commercial, and military sectors. Ultrawide bandwidth (UWB) technology is a viable candidate for enabling accurate localization capabilities through time-of-arrival (TOA)-based ranging techniques. These techniques exploit the fine delay resolution property of UWB signals by estimating the TOA of the first signal path. Exploiting the full capabilities of UWB TOA estimation can be challenging, especially when operating in harsh propagation environments, since the direct path may not exist or it may not be the strongest. In this paper, we first give an overview of ranging techniques together with the primary sources of TOA error (including propagation effects, clock drift, and interference). We then describe fundamental TOA bounds (such as the Cramer-Rao bound and the tighter Ziv-Zakai bound) in both ideal and multipath environments. These bounds serve as useful benchmarks in assessing the performance of TOA estimation techniques. We also explore practical low-complexity TOA estimation techniques and analyze their performance in the presence of multipath and interference using IEEE 802.15.4a channel models as well as experimental data measured in indoor residential environments.
Sponsorship	IEEE Publication
Starting Page	404
Ending Page	426
Page Count	23
File Size	1341961
File Format	PDF
ISSN	00189219
Volume Number	97
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Interference Time of arrival estimation Global Positioning System Position measurement Delay estimation Wireless sensor networks Laboratories Signal resolution Clocks ultrawide bandwidth localization multipath channel ranging time-of-arrival
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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Time-of-Arrival Estimation of UWB Signals in the Presence of Narrowband and Wideband Interference

Wireless Localization using Time Difference of Arrival in Narrow-Band Multipath Systems

Spatial Characteristics of UWB TOA-based Ranging in Indoor Multipath Environments

Ziv-Zakai bound on time-of-arrival estimation with statistical channel knowledge at the receiver

Target tracking in multipath environments — An algorithm inspired by data association

On the TOA Estimation for UWB Ranging in Complex Confined Area

Reduction of multipath-induced bias of GPS time-of-arrival

WLAN-based local positioning using distorted template

High-Resolution UWB Ranging based on Phase-Only Correlator

Ranging With Ultrawide Bandwidth Signals in Multipath Environments

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