Title :
An Improved Time-of-Arrival Estimation for WLAN-Based Local Positioning
Author :
Harish Reddy ; Girish Chandra, M. ; Balamuralidhar, P. ; Harihara, S.G. ; Bhattacharya, Kankar ; Joseph, E.
Author_Institution :
Embedded Syst. Res. Group, Tata Consultancy Services, Bangalore, India
Abstract :
Local positioning, particularly in indoor environments, poses challenges that are not faced by global and terrestrial positioning systems. Many a times, it is cost effective to build these localization schemes on the existing wireless local area networks (WLANs). This paper presents a novel time-of-arrival estimation technique for IEEE 802.11a WLAN system, which provides better accuracy than the traditional correlation-based scheme.
Keywords :
Global Positioning System; OFDM modulation; indoor radio; time-of-arrival estimation; wireless LAN; IEEE 802.11a WLAN system; OFDM frame; TOA estimation technique; WLAN-based local positioning; indoor environments; time-of-arrival estimation; wireless local area networks; Costs; Embedded system; Global Positioning System; Indoor environments; OFDM; Radio frequency; Time measurement; Time of arrival estimation; Wireless LAN; Wireless networks; IEEE 802.11a; OFDM; local positioning; time-of-arrival;
Conference_Titel :
Communication Systems Software and Middleware, 2007. COMSWARE 2007. 2nd International Conference on
Conference_Location :
Bangalore
Print_ISBN :
1-4244-0613-7
DOI :
10.1109/COMSWA.2007.382578
