Exploring the performance of indoor localization systems based on VLC-RSSI, including the effect of NLOS components using two light-emitting diode lighting systems

Mohammed Abd Elkarim; Nazmi Azzam Mohammed; Moustafa Hussein Aly

doi:10.1117/1.OE.54.10.105110

20 October 2015 Exploring the performance of indoor localization systems based on VLC-RSSI, including the effect of NLOS components using two light-emitting diode lighting systems

Mohammed Abd Elkarim, Nazmi Azzam Mohammed, Moustafa Hussein Aly

Author Affiliations +

Optical Engineering, Vol. 54, Issue 10, 105110 (October 2015). https://doi.org/10.1117/1.OE.54.10.105110

Abstract

We analyze the effect of diffuse reflection on indoor localization systems based on visible light communication. The target position is estimated using a received signal strength indication technique. Two lighting systems are considered: distinct and uniform lighting systems. Each utilizes commercially available light-emitting diodes and photodiodes with an illumination level conforming to standards. We introduce a comparative study between the two lighting systems through different transmitter (Tx) and receiver (Rx) essential parameters. The results show that the uniform lighting system achieves less localization error (≤20.43 cm) than a distinct lighting system (≤45.9 cm). The uniform lighting system is well adapted to low-Rx field of view (FOV) and narrow radiation angle (error=1 mm when semiradiation angle=5 deg). In the case of a distinct lighting system, low-Rx FOV is also required, while the Tx semiradiation angle needs to be determined carefully (error≤3.08 cm when semiradiation angle=20 deg). Finally, the uniform lighting system shows flexibility in the process of Tx and Rx designs. A uniform lighting system can utilize Rxs with narrow FOVs (≥8.6 deg), while a distinct lighting system is limited to Rx with a wide FOV (≥53.96 deg).

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Mohammed Abd Elkarim, Nazmi Azzam Mohammed, and Moustafa Hussein Aly "Exploring the performance of indoor localization systems based on VLC-RSSI, including the effect of NLOS components using two light-emitting diode lighting systems," Optical Engineering 54(10), 105110 (20 October 2015). https://doi.org/10.1117/1.OE.54.10.105110

Published: 20 October 2015

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