tailieunhanh - WLAN fingerprinting based indoor positioning in the presence of dropped mixture data

In the Wireless Local Area Network (WLAN), due to the unexpected operation of equipments and the changing of surround environment, the dropping and multi-component problems might present in the observed data. Dropping refers to the fact that occasionally Received Signal Strength Indication (RSSI) measurements of Wi-Fi access points (AP) are not available, although their value is clearly above the limited sensitivity of Wi-Fi sensors on portable devices. | WLAN fingerprinting based indoor positioning in the presence of dropped mixture data