Title :
A Hexagonal Coverage LED-ID Indoor Positioning Based on TDOA with Extended Kalman Filter
Author :
Taparugssanagorn, Attaphongse ; Siwamogsatham, Siwaruk ; Pomalaza-Raez, Carlos
Author_Institution :
Wireless Inf. Security & Eco-Electron. Res. Unit, Nat. Electron. & Comput. Technol. Center, Pathum Thani, Thailand
Abstract :
In this paper we propose a positioning approach based on the time different of arrival (TDOA) algorithm from light emitting diodes to localize mobile targets in indoor environments. The hexagonal lattice alignment of LED transmitters is proposed to reduce the coverage holes and the areas of overlapping radiation. The accuracy of the position estimation is compared to the one in a typical rectangular grid alignment. In addition, an extended Kalman filter is adopted together with the TDOA method to enhance the position estimation performance.
Keywords :
Kalman filters; direction-of-arrival estimation; indoor radio; light emitting diodes; mobility management (mobile radio); nonlinear filters; optical transmitters; time-of-arrival estimation; LED transmitters; TDOA; coverage hole reduction; extended Kalman filter; hexagonal coverage LED-ID indoor positioning; hexagonal lattice alignment; light emitting diodes; location awareness; mobile target localization; optical wireless communications; overlapping radiation area reduction; position estimation performance enhancement; time different-of-arrival algorithm; Kalman filters; Lattices; Light emitting diodes; Noise; Noise measurement; Optical transmitters; Random variables; Bayesian filter; Cramér-Rao lower bound; Indoor Localization; optical wireless communications;
Conference_Titel :
Computer Software and Applications Conference (COMPSAC), 2013 IEEE 37th Annual
Conference_Location :
Kyoto
DOI :
10.1109/COMPSAC.2013.123
