Title :
Comparison of indoor geolocation methods in DSSS and OFDM wireless LAN systems
Author :
Li, Xinrong ; Pahlavan, Kaveh ; Latva-aho, Matti ; Ylianttila, Mika
Author_Institution :
Center for Wireless Inf. Network Studies, Worcester Polytech. Inst., MA, USA
Abstract :
Geolocation methods for HIPERLAN/2 OFDM systems were reported previously. This paper continues to study the possibility of overlaying geolocation functions in 802.11 DSSS wireless LANs. In this paper, a delay measurement-based TDOA measuring method is proposed for 802.11 wireless LANs, which eliminate the requirement of initial synchronization in the conventional methods. The performance of the potential overlaid geolocation systems for DSSS and OFDM wireless LANs are analyzed and compared in terms of symbol synchronization performance
Keywords :
IEEE standards; OFDM modulation; indoor radio; radio direction-finding; spread spectrum communication; telecommunication standards; time measurement; wireless LAN; 802.11 DSSS wireless LAN; HIPERLAN/2 OFDM systems; OFDM wireless LAN systems; TDOA measuring method; delay measurement; indoor geolocation methods; performance; symbol synchronization performance; wireless LAN; Centralized control; Control systems; Delay; Indoor environments; Intelligent networks; OFDM; Performance analysis; Spread spectrum communication; Wireless LAN; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886867
