GPS-Assisted Path Loss Exponent Estimation for Positioning in IEEE 802.11 Networks
Joint Authors
O'Keefe, Kyle
Siller, Mario
Navarro-Alvarez, Ernesto
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2013, Issue - (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
We present a new adaptive method to calculate the path loss exponent (PLE) for microcell outdoor dynamic environments in the 2.4 GHz Industrial, Scientific, and Medical (ISM) frequency band.
The proposed method calculates the PLE during random walks by recording signal strength measurements from Radio Frequency (RF) transceivers and position data with a consumer-grade GPS receiver.
The novelty of this work lies in the formulation of signal propagation conditions as a parametric observation model in order to estimate first the PLE and then the distance from the received RF signals using nonlinear least squares.
GPS data is used to identify long term fading from the received signal's power and helps to refine the power-distance model.
Ray tracing geometries for urban canyon (direct line of sight) and nonurban canyon (obstacles) propagation scenarios are used as the physics of the model (design matrix).
Although the method was implemented for a lightweight localization algorithm for the 802.11b/g (Wi-Fi) standard, it can also be applied to other ISM band protocols such as 802.15.4 (Zigbee) and 802.15.1 (Bluetooth).
American Psychological Association (APA)
Navarro-Alvarez, Ernesto& Siller, Mario& O'Keefe, Kyle. 2013. GPS-Assisted Path Loss Exponent Estimation for Positioning in IEEE 802.11 Networks. International Journal of Distributed Sensor Networks،Vol. 2013, no. -, pp.1-10.
https://search.emarefa.net/detail/BIM-507456
Modern Language Association (MLA)
Navarro-Alvarez, Ernesto…[et al.]. GPS-Assisted Path Loss Exponent Estimation for Positioning in IEEE 802.11 Networks. International Journal of Distributed Sensor Networks Vol. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-507456
American Medical Association (AMA)
Navarro-Alvarez, Ernesto& Siller, Mario& O'Keefe, Kyle. GPS-Assisted Path Loss Exponent Estimation for Positioning in IEEE 802.11 Networks. International Journal of Distributed Sensor Networks. 2013. Vol. 2013, no. -, pp.1-10.
https://search.emarefa.net/detail/BIM-507456
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507456