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
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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 (error3.08  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).
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Mohammed Abd Elkarim, Nazmi Azzam Mohammed, 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 . Submission:
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