Abstract
Visible light positioning (VLP) is an emerging candidate for indoor positioning,
which can simultaneously meet the requirements for accuracy, cost, coverage area, and
security. However, intercell interference caused by light intensity superposition limits
the application of VLP. In this Letter, we propose a united block sequence mapping
(UBSM)-based VLP that utilizes superposition to integrate the multidimensional
information from dense small cells into 2D information. The experimental result shows
that UBSM-based VLP can achieve an accuracy of 1.5 cm with a 0.4 m row spacing and
0.35 m column spacing of LED lights.
© 2016 Chinese Laser Press
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