Title :
A ranging system for an IEEE 802.11 OFDM transceiver
Author :
Hämäläinen, Ari ; Teikari, Ilari
Author_Institution :
Nokia Res. Center, Helsinki
Abstract :
In this paper we propose a method for distance estimation between two transceivers. The method is based on controlling transmission times of packets and calculation of the relative phase-shifts of the OFDM subcarriers. We demonstrate the system using simulations of a bit and cycle accurate VHDL model of an IEEE 802.11a WLAN transceiver and the distance measurement algorithm.
Keywords :
OFDM modulation; distance measurement; hardware description languages; transceivers; wireless LAN; IEEE 802.11 OFDM transceiver; IEEE 802.11a WLAN transceiver; VHDL model; distance estimation; distance measurement; ranging system; Clocks; Distance measurement; Frequency synchronization; OFDM; Phase estimation; Position measurement; Sampling methods; Timing; Transceivers; Wireless LAN; Distance measurement; Position measurement; Wireless LAN;
Conference_Titel :
Radio and Wireless Symposium, 2009. RWS '09. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2698-0
Electronic_ISBN :
978-1-4244-2699-7
DOI :
10.1109/RWS.2009.4957444
