[2] [2] KESKIN M F, SEZER A D, GEZICI S. Optimal and Robust Power Allocation for Visible Light Positioning Systems Under Illumination Constraints[J]. IEEE Transactions on Communications, 2019, 67(1): 527-542.

[3] [3] HOSSEN M S, PARK Y, KIM K D. Performance improvement of indoor positioning using light-emitting diodes and an image sensor for light-emitting diode communication[J]. Optical Engineering, 2015, 54(4): 1-11.

[4] [4] FU M, ZHU W, LE Z, et al. Improved visible light communication positioning algorithm based on image sensor tilting at room corners[J]. IET Communications, 2018, 12(10): 1201-1206.

[5] [5] tion Using Single LED[C]// 2018 IEEE International Conference on Automation, Electronics and Electrical Engineering(AUTEEE2018), November 16-18, 2018, Shenyang, China. Piscataway: IEEE, 2018: 202-208.

          GUAN W, WEN S, ZHANG H, et al. A Novel Three-dimensional Indoor Localization Algorithm Based on Visual Visible Light Communica-

[6] [6] QIN L, NIU B, LI B, et al. Indoor visible light high precision three-dimensional positioning algorithm based on single LED lamp[J]. Optik, 2020, 207(5): 163786-1-163786-10.

[7] [7] KOKDOGAN F, ERDEM O, GEZICI S. Theoretical limits on localization in single input multiple output (SIMO) visible light systems[J]. Digital Signal Processing, 2018, 82: 31-42.

[8] [8] YANG F, LI S, ZHANG H, et al. Visible Light Positioning via Floor Reflections[J]. IEEE Access, 2019(7): 97390-97400.

[9] [9] HAO J, CHEN J, WANG R. Visible Light Positioning Using A Single LED Luminaire[J]. IEEE Photonics Journal, 2019, 11(5): 1-13.

[10] [10] XIE C, GUAN W, WU Y, et al. The LED-ID Detection and Recogni-

          tion Method Based on Visible Light Positioning Using Proximity Method[J]. IEEE Photonics Journal, 2018, 10(2): 1-16.

[11] [11] JI Y, XIAO C, GAO J, et al. A single LED lamp positioning system based on CMOS camera and visible light communication[J]. Optics Communications, 2019, 443: 48-54.

[12] [12] ZHANG L, ZHOU T, LIAN B. Integrated IMU with Faster R-CNN Aided Visual Measurements from IP Cameras for Indoor Positioning[J]. Sensors, 2018, 18(9): 3134-1-3134-22.

[13] [13] HOU Y, XIAO S, BI M, et al. Single LED Beacon-Based 3-D Indoor Positioning Using Off-the-Shelf Devices[J]. IEEE Photonics Journal, 2016, 8(6): 1-11.

[14] [14] KESKIN M F, GEZICI S, ARIKAN O. Direct and Two-Step Positioning in Visible Light Systems[J]. IEEE Transactions on Communications, 2018, 66(1): 239-254.

[16] [16] LIN B, GHASSEMLOOY Z, LIN C, et al. An Indoor Visible Light Positioning System Based on Optical Camera Communications[J]. IEEE Photonics Technology Letters, 2017, 29(7): 579-582.