PDOA Based Indoor Positioning Using Visible Light Communication

被引:45
作者
Naz, Ayesha [1 ]
Asif, Hafiz M. [1 ]
Umer, Tariq [2 ]
Kim, Byung-Seo [3 ]
机构
[1] COMSATS Inst Informat Technol Lahore, Dept Elect Engn, Lahore, Pakistan
[2] COMSATS Inst Informat Technol Wah Cantt, Dept Comp Sci, Wah Cantt 47040, Pakistan
[3] Hongik Univ, Dept Comp & Informat Commun Engn, Seoul 30016, South Korea
来源
IEEE ACCESS | 2018年 / 6卷
关键词
Visible light communication; variable phase; time difference of arrival; indoor positioning; optical channel; RATIO;
D O I
10.1109/ACCESS.2018.2796623
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A novel indoor positioning algorithm with improved location accuracy is proposed for visible light communication system. The novelty of the positioning algorithm lies in a hybrid approach of making use of both frequency and variable phase of the transmitted signal. The algorithm has the capability of estimating the position of an object with localization error in millimeters when the signal passes through an optical channel. The LEDs are modulated at very high frequencies. The simulation results demonstrate that the positioning error is reasonably reduced compared with other existing approaches (algorithms). Unlike existing work, the current work also evaluates the performance of the positioning algorithm in the presence of different noise distributions and shows that 1 - 2 cm positioning accuracy can be achieved in the presence of the noise. Finally, multiple potential applications are discussed in which the proposed positioning scheme can be deployed.
引用
收藏
页码:7557 / 7564
页数:8
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