NDLI: Calibrating Time of Flight in Two Way Ranging

Content Provider	IEEE Xplore Digital Library
Author	Baba, A.I.
Copyright Year	2011
Abstract	There has been a huge attention attracted by Wireless Sensor Network (WSN) applications in recent years. One of the significant part of these applications is "Localization". Nodes normally do not have any prior knowledge of their position when deployed. Thus a mechanism is required for nodes to determine their position. In this paper a new Two-Way Ranging (TWR) approach to find out the point-to-point range between the nodes is presented. The two way ranging technique can be prone to errors due to the delays associated with clock drift and low sampling frequency clock, thus may result in poor ranging accuracy. A new technique Two Way Ranging with Multiple Messages (TWR-MM) is introduced to remove such inaccuracies by calibrating the ranging nodes to achieve better ranging accuracy. The proposed solution is evaluated on a real test bed and using simulations. Results show accuracy within centimeters can be achieved, which is much better than simple TWR and Symmetrical Double Sided TWR (SDS-TWR).
Starting Page	393
Ending Page	397
File Size	1598663
Page Count	5
File Format	PDF
ISBN	9781457721786
DOI	10.1109/MSN.2011.23
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks range inaccuracy Accuracy wireless sensor network Time of Flight Distance measurement Calibration Synchronization Localization low frequency clocks Delay Clocks
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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