TDOA-based optical wireless indoor localization using LED ceiling lamps

Author

Jung, Soo-Yong ; Hann, Swook ; Park, Chang-Soo

Author_Institution

Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea

Volume

57

Issue

4

fYear

2011

fDate

11/1/2011 12:00:00 AM

Firstpage

1592

Lastpage

1597

Abstract

We propose an optical wireless indoor localization using light emitting diodes (LEDs) and demonstrate it via simulation. Unique frequency addresses are assigned to each LED lamp, and transmitted through the light radiated by the LED. Using the phase difference, time difference of arrival (TDOA) localization algorithm is employed. Because the proposed localization method used pre-installed LED ceiling lamps, no additional infrastructure for localization is required to install and therefore, inexpensive system can be realized. The performance of the proposed localization method is evaluated by computer simulation, and the indoor location accuracy is less than 1 cm in the space of 5m x 5 m x 3 m.

Keywords

Global Positioning System; LED lamps; time-of-arrival estimation; GPS; LED ceiling lamps; TDOA-based optical wireless indoor localization; computer simulation; frequency addresses; global positioning system; indoor location accuracy; light emitting diodes; phase difference; time difference of arrival localization algorithm; Detectors; Light emitting diodes; Optical detectors; Optical distortion; Optical receivers; Optical signal processing; Wireless communication; Indoor localization; light emitting diode; time difference of arrival; visible light communications.;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2011.6131130

Filename

6131130