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Table 1 Indoor positioning system

From: New indoor navigation system for visually impaired people using visible light communication

  Visible light communication Wireless LAN RFID
Position accuracy several meters several meters to several hundred meters several meters
Quality stable dependence of noise, interference dependence of noise, interference
Measurement time less than a second several seconds less than a second
Recognition of building floors possible difficult possible
Measurement Device visible light receiver Wi-Fi transceiver RFID reader