Title :
An indoor visible light communication positioning system using dual-tone multi-frequency technique
Author :
Pengfei Luo ; Min Zhang ; Xiang Zhang ; Guangming Cai ; Dahai Han ; Qing Li
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, we propose a visible light communication (VLC)-based indoor positioning system (IPS) and algorithm using dual-tone multi-frequency (DTMF) technique. Compared with the existing VLC-based IPS algorithms, our algorithm does not need clock synchronization to separate signals from different time slots. With simple procedures, the coarse position or specific position of the mobile can be obtained by analyzing both the time and frequency domain of the received signal. The simulation result shows that the average positioning error is 18 mm at the signal-to-noise ratio (SNR) of 10 dB.
Keywords :
indoor communication; navigation; optical links; signal detection; coarse position; dual tone multifrequency technique; indoor positioning system; indoor visible light communication positioning system; signal separation; time slots; Frequency-domain analysis; LED lamps; Mobile communication; Signal to noise ratio; Wireless communication; dual-tone multi-frequency; indoor positioning system; visible light communication;
Conference_Titel :
Optical Wireless Communications (IWOW), 2013 2nd International Workshop on
Conference_Location :
Newcastle upon Tyne
DOI :
10.1109/IWOW.2013.6777770
