Abstract

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 system with 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 TDM scheme provides a better performance than the conventional TDM and is more applicable to the accurate positioning of a moving device.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Accuracy analysis and improvement of visible light positioning based on VLC system using orthogonal frequency division multiple access

Yitong Xu, Zixiong Wang, Peixi Liu, Jian Chen, Shiying Han, Changyuan Yu, and Jinlong Yu
Opt. Express 25(26) 32618-32630 (2017)

Indoor three-dimensional high-precision positioning system with bat algorithm based on visible light communication

Li Huang, Ping Wang, Zhongyu Liu, Xi Nan, Lingling Jiao, and Lixin Guo
Appl. Opt. 58(9) 2226-2234 (2019)

Indoor VLC System With Multiple LEDs of Different Path Lengths Employing Space–Time Block-Coded DMT/CAP Modulation [Invited]

Chia-Chien Wei, Fang-Ming Wu, Zhen-Yu Chen, Chun-Ting Lin, Yu-Syuan Huang, Yung-Jui (Ray) Chen, and Sien Chi
J. Opt. Commun. Netw. 7(3) A459-A466 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription