Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2014 | Volume: 14 | Issue: 14 | Page No.: 1564-1569
DOI: 10.3923/jas.2014.1564.1569
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Performance Comparison of UWB and Wi-Fi Based Indoor Localization Using TDOA

R. Jayabharathy, R. Varadarajan and V. Prithiviraj

Abstract:
Location based services are becoming attractive with the deployment of next generation wireless networks and broadband wireless technologies. In this study an attempt is made to implement three dimensional Hyperbolic Position Location (PL) system using UWB and Wi-Fi wireless technologies. Generalized Cross Correlation (GCC) method is utilized to estimate the time delay and position estimation is obtained by range difference PL system, resulting in a set of non-linear equations. It is then transformed into linear equations using Taylor series. Finally comparison of performance between UWB and Wi-Fi based PL systems is analyzed in terms of Mean Square Error (MSE) for closure reference node densities. The proposed system is composed of wireless nodes (Receivers or Reference nodes whose positions are known), tags (Transmitter or Unknown position of the target) and location server to calculate the target position accurately.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

R. Jayabharathy, R. Varadarajan and V. Prithiviraj , 2014. Performance Comparison of UWB and Wi-Fi Based Indoor Localization Using TDOA. Journal of Applied Sciences, 14: 1564-1569.

DOI: 10.3923/jas.2014.1564.1569

URL: https://scialert.net/abstract/?doi=jas.2014.1564.1569

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom