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New photodiode responsivity model for RSS-based VLP

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Abstract
Visible Light Positioning (VLP) might enable auspicious tracking systems, well-suited for low-cost and route-configurable autonomous guided vehicles. Yielding the high accuracy required, necessitates a detailed modelling of a photodiode (PD) receiver's angular characteristics. Still lacking, current RSS-based VLP systems implicitly cope by measuring and (arbitrarily) fitting the received power - distance relation. Upon PD changeover, a recalibration is needed. In this paper, it is shown that adequately modelling the receiver's angular dependencies (i.e. the responsivity) obsoletes the calibrating fit. Hereto, a new responsivity model is proposed, which is a function of the square of the incidence angle rather than its cosine. An extensive measurement set highlights that this model better matches the measured angular characteristics. In terms of the coefficient of determination R2, the new model outscores the baseline Lambertian and generalised Lambertian responsivity models by 1.64% and 0.17% for a Lambertian-like receiver, and by 133% and 1.24% for a non-Lambertian-resembling receiver.
Keywords
automatic guided vehicles, calibration, least squares approximations, mobile robots, photodiodes, time-of-arrival estimation, new photodiode responsivity model, visible light positioning, auspicious tracking systems, detailed modelling, photodiode receiver, current RSS-based VLP systems, received power-distance relation, PD changeover, angular dependencies, calibrating fit, extensive measurement, measured angular characteristics, generalised Lambertian responsivity models, nonLambertian-resembling receiver, route-configurable autonomous guided vehicles, Receivers, Light emitting diodes, IP networks, Photodiodes, Photoconductivity, Mathematical model, Channel models, Visible Light Positioning, VLP, RSS, propagation modelling, responsivity, photodiode

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Citation

Please use this url to cite or link to this publication:

MLA
Bastiaens, Sander, et al. “New Photodiode Responsivity Model for RSS-Based VLP.” Proceedings of the Global LiFi Congress, 2019.
APA
Bastiaens, S., Raes, W., Stevens, N., Joseph, W., & Plets, D. (2019). New photodiode responsivity model for RSS-based VLP. In Proceedings of the Global LiFi Congress. Paris, France.
Chicago author-date
Bastiaens, Sander, Willem Raes, Nobby Stevens, Wout Joseph, and David Plets. 2019. “New Photodiode Responsivity Model for RSS-Based VLP.” In Proceedings of the Global LiFi Congress.
Chicago author-date (all authors)
Bastiaens, Sander, Willem Raes, Nobby Stevens, Wout Joseph, and David Plets. 2019. “New Photodiode Responsivity Model for RSS-Based VLP.” In Proceedings of the Global LiFi Congress.
Vancouver
1.
Bastiaens S, Raes W, Stevens N, Joseph W, Plets D. New photodiode responsivity model for RSS-based VLP. In: Proceedings of the Global LiFi Congress. 2019.
IEEE
[1]
S. Bastiaens, W. Raes, N. Stevens, W. Joseph, and D. Plets, “New photodiode responsivity model for RSS-based VLP,” in Proceedings of the Global LiFi Congress, Paris, France, 2019.
@inproceedings{8639241,
  abstract     = {Visible Light Positioning (VLP) might enable auspicious tracking systems, well-suited for low-cost and route-configurable autonomous guided vehicles. Yielding the high accuracy required, necessitates a detailed modelling of a photodiode (PD) receiver's angular characteristics. Still lacking, current RSS-based VLP systems implicitly cope by measuring and (arbitrarily) fitting the received power - distance relation. Upon PD changeover, a recalibration is needed. In this paper, it is shown that adequately modelling the receiver's angular dependencies (i.e. the responsivity) obsoletes the calibrating fit. Hereto, a new responsivity model is proposed, which is a function of the square of the incidence angle rather than its cosine. An extensive measurement set highlights that this model better matches the measured angular characteristics. In terms of the coefficient of determination R2, the new model outscores the baseline Lambertian and generalised Lambertian responsivity models by 1.64% and 0.17% for a Lambertian-like receiver, and by 133% and 1.24% for a non-Lambertian-resembling receiver.},
  author       = {Bastiaens, Sander and Raes, Willem and Stevens, Nobby and Joseph, Wout and Plets, David},
  booktitle    = {Proceedings of the Global LiFi Congress},
  isbn         = {978-1-7281-5022-2},
  keywords     = {automatic guided vehicles,calibration,least squares approximations,mobile robots,photodiodes,time-of-arrival estimation,new photodiode responsivity model,visible light positioning,auspicious tracking systems,detailed modelling,photodiode receiver,current RSS-based VLP systems,received power-distance relation,PD changeover,angular dependencies,calibrating fit,extensive measurement,measured angular characteristics,generalised Lambertian responsivity models,nonLambertian-resembling receiver,route-configurable autonomous guided vehicles,Receivers,Light emitting diodes,IP networks,Photodiodes,Photoconductivity,Mathematical model,Channel models,Visible Light Positioning,VLP,RSS,propagation modelling,responsivity,photodiode},
  language     = {eng},
  location     = {Paris, France},
  pages        = {6},
  title        = {New photodiode responsivity model for RSS-based VLP},
  url          = {http://dx.doi.org/10.1109/GLC.2019.8864136},
  year         = {2019},
}

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