Abstract
In this paper, we investigate the problem of indoor positioning using visible light systems. The directional detector array we use is comprised of a number of receiving elements, each consisting of an aperture and a photo diode, which are arranged to offer good angular diversity, and can be implemented within a compact receiver structure [1]. The receiving elements receive the light from a number of white LEDs, which are typically attached to the ceiling, and which act as anchors. In order to get an indication of the received signal strengths of the different LEDs, we average the received signals over time. The relative signal strengths in the different receiving elements do not only provide information on the distance between the LEDs and the detector array, but also about the angle-of-arrival of the light. By combining the information of the receiving elements, the position of the detector can be estimated. In order to assess the accuracy of positioning algorithms based on this approach, we derive the Cramer-Rao lower bound on the position accuracy. Assuming the white LEDs transmit an optical power of 1 W, and the time averaging is done over 1 millisecond, an accuracy of the order of a centimetre can be achieved.
| Original language | English |
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| Title of host publication | 2016 IEEE International Conference on Communications (ICC 2016) |
| Subtitle of host publication | Kuala Lumpur, Malaysia, 22-27 May, 2016 |
| Editors | Stefano Bregni, Nelson Fonseca |
| Place of Publication | Piscataway, NJ |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Number of pages | 6 |
| ISBN (Electronic) | 9781479966646 |
| ISBN (Print) | 9781479966653 |
| DOIs | |
| Publication status | Published - 12 Jul 2016 |
| Event | IEEE International Conference on Communications 2016: Communications for All Things - Kuala Lumpur, Malaysia Duration: 22 May 2016 → 27 May 2016 http://icc2016.ieee-icc.org/ http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7502491 (IEEE Conference Proceedings) |
Conference
| Conference | IEEE International Conference on Communications 2016 |
|---|---|
| Abbreviated title | ICC 2016 |
| Country/Territory | Malaysia |
| City | Kuala Lumpur |
| Period | 22/05/16 → 27/05/16 |
| Other | Conveniently located in the middle of South-East Asia, ICC2016 will feature a comprehensive Technical Program including 13 Symposia and a number of Tutorials and Workshops. IEEE ICC 2016 - Communications for All Things will also include an attractive Industry Forum & Exhibition Program featuring keynote speakers, business and industry panels, and vendor exhibits. |
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