Title :
IEEE 802.11 Distance Estimation Based on RTS/CTS Two-Frame Exchange Mechanism
Author :
Bahillo, A. ; Prieto, J. ; Mazuelas, S. ; Lorenzo, R.M. ; Blas, J. ; Fernández, P.
Author_Institution :
Parque Tecnol. de Boecillo, CEDETEL (Center for the Dev. of Telecommun.), Valladolid
Abstract :
The addition of positioning capabilities to widespread communications such as IEEE 802.11 compliant networks could open up interesting markets, in particular if a low-cost hardware has to be added to the existing one and standard RTS/CTS control frames exchange could be used for this purpose. In this paper various statistical estimators of the delay profile observed, derived from Round-Trip Time measurements, are analyzed and a linear regression of the statistical estimators is applied in order to improve the accuracy of distance estimation between a Mobile User and an Access Point. A precision in distance estimation with errors in the range of a meter is achieved.
Keywords :
regression analysis; telecommunication standards; wireless LAN; IEEE 802.11; RTS/CTS control frames exchange; access point; clear-to-sent; distance estimation; linear regression; mobile user; request-to-sent; round-trip time measurements; Bandwidth; Clocks; Delay estimation; Hardware; Integrated circuit measurements; Pulse measurements; Radar measurements; Signal resolution; Time measurement; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073583
