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

fYear

2013

Firstpage

25

Lastpage

29

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Wireless Communications (IWOW), 2013 2nd International Workshop on

Conference_Location

Newcastle upon Tyne

Type

conf

DOI

10.1109/IWOW.2013.6777770

Filename

6777770