Title
LiBeamScanner: Accurate Indoor Positioning with Sweeping Light Beam
Abstract
This paper proposes LiBeamScanner, an indoor positioning system that utilizes only a single custom light bulb and a light sensor to achieve extremely high positioning accuracy. Single light bulb means that a dense deployment of illuminaries is unnecessary, and the use of a light sensor, instead of a camera, implies that even systems with strict energy constraints, such as wearable devices, can make use of our system. At the physical layer, we propose a novel transmitter design that allows information to be modulated onto very narrow light beams, projected to a large number of fine-grained} locations simultaneously. More importantly, these light beams generate negligible interference to each other, as a result providing a high resolution for enabling accurate positioning. Evaluation results of our prototype show that most of the errors are less than 3cm and the average error does not exceed 5cm.
Year
DOI
Venue
2015
10.1145/2801073.2801079
VLCS@MobiCom
Field
DocType
Citations 
Transmitter,Light beam,Polarization (waves),Optics,Incandescent light bulb,Photodetector,Physical layer,Interference (wave propagation),Acoustics,Engineering,Indoor positioning system
Conference
0
PageRank 
References 
Authors
0.34
3
6
Name
Order
Citations
PageRank
Chang-Jung Huang151.10
Yu-Lin Wei2525.65
Chiao Fu300.68
Wen-Hsuan Shen402.03
Hsin-Mu Tsai530529.74
Kate Ching-Ju Lin641838.28