Researching | United block sequence mapping-based visible light positioning for dense small cell deployment

Journals >Chinese Optics Letters >Volume 14 >Issue 7 >Page 070601 > Article

Chinese Optics Letters
Vol. 14, Issue 7, 070601 (2016)

United block sequence mapping-based visible light positioning for dense small cell deployment

Runmei Zhao, Zhitong Huang, Yuxin Liu, and Yuefeng Ji^*

Author Affiliations

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

show less

DOI: 10.3788/COL201614.070601 Cite this Article Set citation alerts

Runmei Zhao, Zhitong Huang, Yuxin Liu, Yuefeng Ji. United block sequence mapping-based visible light positioning for dense small cell deployment[J]. Chinese Optics Letters, 2016, 14(7): 070601 Copy Citation Text

show less

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.

α_{R} (x, y) = (W_{R} * S_{R}) / (O_{R} * S_{R}),

(1)

View in Article

W_{R} = [\begin{matrix} 1 & 2 & \dots & M \end{matrix}],

(2)

View in Article

S_{R} = [{\begin{matrix} S_{Row 1} (x, y) & S_{Row 2} (x, y) & \dots & S_{Row M} (x, y)] \end{matrix}}^{T},

(3)

View in Article

O_{R} = [\begin{matrix} 1 & 1 & \dots & 1 \end{matrix}],

(4)

View in Article

S_{Row i} (x, y) = \sum_{j = 1}^{N} {RSS}_{i, j},

(5)

View in Article

α_{C} (x, y) = (W_{C} * S_{C}) / (O_{C} * S_{C}),

(6)

View in Article

W_{C} = [\begin{matrix} 1 & 2 & \dots & N \end{matrix}],

(7)

View in Article

S_{C} = [{\begin{matrix} S_{Col 1} (x, y) & S_{Col 2} (x, y) & \dots & S_{Col N} (x, y)] \end{matrix}}^{T}

(8)

View in Article

O_{C} = [\begin{matrix} 1 & 1 & \dots & 1 \end{matrix}],

(9)

View in Article

S_{Col j} (x, y) = \sum_{i = 1}^{M} {RSS}_{i, j},

(10)

View in Article

f_{R} (y) = α_{R} (x_{s}, y) - α_{R m},

(11)

View in Article

f_{C} (x) = α_{C} (x, y_{s}) - α_{C m},

(12)

View in Article

x_{0} = \min (x) + \frac{(\max (x) - \min (x))}{(N - 1)} * (α_{C_{m}} - 1),

(13)

View in Article

x_{0} = \max (x) - \frac{(\max (x) - \min (x))}{(N - 1)} * (α_{C_{m}} - 1),

(14)

View in Article

y_{0} = \min (y) + \frac{(\max (y) - \min (y))}{(M - 1)} * (α_{R_{m}} - 1),

(15)

View in Article

y_{0} = \max (y) - \frac{(\max (y) - \min (y))}{(M - 1)} * (α_{R_{m}} - 1),

(16)

View in Article

x_{n} = x_{n - 1} - \frac{f_{C} (x_{n - 1})}{f_{C} {(x_{n - 1})}^{'}}, n \geq 1,

(17)

View in Article

y_{n} = y_{n - 1} - \frac{f_{R} (y_{n - 1})}{f_{R} {(y_{n - 1})}^{'}}, n \geq 1 .

(18)

View in Article

Figures&Tables (11)

References (19)

Copy Citation Text

Runmei Zhao, Zhitong Huang, Yuxin Liu, Yuefeng Ji. United block sequence mapping-based visible light positioning for dense small cell deployment[J]. Chinese Optics Letters, 2016, 14(7): 070601

Download Citation

Set citation alerts for the article

Set citation alerts for the article

Save the article for my favorites

Paper Information

Recommended Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology

Set citation alerts for the article

Please enter your email address