![](/images/graphics-bg.png)
Ranging Energy Optimization for a TDOA-Based Distributed Robust Sensor Positioning System
Author
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-12-22
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
The author proposes a distributed localization scheme for an asynchronous wireless sensor network (WSN) consisting of at least two beacons as well as some anchors, each collaborating with the beacons to help the sensors within the corresponding service area for self-localization.
Most interestingly, each sensor does not need to emit either ranging or communication signals to neighbor sensors in the proposed scheme.
Instead, each sensor only needs to estimate the time-of-arrivals (TOAs) of incoming ranging signals from the beacons and the anchors, and then the time-difference-of-arrival (TDOA) between the signal propagating from each beacon to the sensor and the one from that beacon to the sensor via an associated anchor is produced and converted to a range difference measurement at the sensor for self-localization.
Assuming the location estimator adopted achieves the associated Cramér-Rao bounds (CRB), the localization performance at each sensor is derived and analyzed.
When the system features robust sensor positioning (RSP) in that a prescribed accuracy requirement is fulfilled in all service areas of the anchors, the author considers ranging energy optimization problems related to the beacons and the anchors, and presents practical algorithms to solve them.
The effectiveness of those algorithms is illustrated by numerical experiments.
American Psychological Association (APA)
Wang, Tao. 2010. Ranging Energy Optimization for a TDOA-Based Distributed Robust Sensor Positioning System. International Journal of Distributed Sensor Networks،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-511977
Modern Language Association (MLA)
Wang, Tao. Ranging Energy Optimization for a TDOA-Based Distributed Robust Sensor Positioning System. International Journal of Distributed Sensor Networks No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-511977
American Medical Association (AMA)
Wang, Tao. Ranging Energy Optimization for a TDOA-Based Distributed Robust Sensor Positioning System. International Journal of Distributed Sensor Networks. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-511977
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511977