Multiple access scheme based on block encoding time division multiplexing in an indoor positioning system using visible light

In view of the application of a visible light positioning system in a public indoor environment with numerous light emitting diodes (LEDs), a long delay is one of the main factors that limits the performance of the positioning systemwith a moving device. To solve this problem, a multiple access scheme based on block encoding time division multiplexing (TDM) is proposed in this paper. In our scheme, nine LEDs compose one block to reduce the system delay. Meanwhile, in order to reduce intercell interference, an extended binary coded decimal code is used to encode signals transmitted by LEDs. The feasibility and performance of the scheme is demonstrated by simulations. The results show that the proposed TDMscheme provides a better performance than the conventional TDM and is more applicable to the accurate positioning of a moving device.

[1]  Sang-Kook Han,et al.  Three-Dimensional Visible Light Indoor Localization Using AOA and RSS With Multiple Optical Receivers , 2014, Journal of Lightwave Technology.

[2]  Sang-Kook Han,et al.  An Indoor Visible Light Communication Positioning System Using a RF Carrier Allocation Technique , 2013, Journal of Lightwave Technology.

[3]  G Ntogari,et al.  Combining Illumination Dimming Based on Pulse-Width Modulation With Visible-Light Communications Based on Discrete Multitone , 2011, IEEE/OSA Journal of Optical Communications and Networking.

[4]  Mohsen Kavehrad,et al.  Indoor positioning algorithm using light-emitting diode visible light communications , 2012 .

[5]  Shlomi Arnon.  Visible Light Communication , 2015 .

[6]  Seth J. Teller,et al.  The cricket compass for context-aware mobile applications , 2001, MobiCom '01.

[7]  Guobin Shen,et al.  Epsilon: A Visible Light Based Positioning System , 2014, NSDI.

[8]  Andy Hopper,et al.  The active badge location system , 1992, TOIS.

[9]  Chang-Soo Park,et al.  White LED ceiling lights positioning systems for optical wireless indoor applications , 2010, 36th European Conference and Exhibition on Optical Communication.

[10]  Jeffrey B. Carruthers,et al.  Wireless infrared communications , 2003, Proc. IEEE.

[11]  Mohsen Kavehrad,et al.  Comparison of VLC-based indoor positioning techniques , 2013, Photonics West - Optoelectronic Materials and Devices.

[12]  Thomas D. C. Little,et al.  A two phase hybrid RSS/AoA algorithm for indoor device localization using visible light , 2012, 2012 IEEE Global Communications Conference (GLOBECOM).

[13]  Jie Xiong,et al.  ArrayTrack: A Fine-Grained Indoor Location System , 2011, NSDI.

[14]  Masao Nakagawa,et al.  Fundamental analysis for visible-light communication system using LED lights , 2004, IEEE Transactions on Consumer Electronics.

[15]  Chang-Soo Park,et al.  TDOA-based optical wireless indoor localization using LED ceiling lamps , 2011, IEEE Transactions on Consumer Electronics.

[16]  Giulio Cossu,et al.  A Visible Light localization aided Optical Wireless system , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[17]  Paramvir Bahl,et al.  RADAR: an in-building RF-based user location and tracking system , 2000, Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064).

[18]  Harald Haas,et al.  Indoor optical wireless communication: potential and state-of-the-art , 2011, IEEE Communications Magazine.