https://cell-pathway.com/succe....ss-associated-with-d
The principle of ULTF is the fact that mobile terminal records and uploads the associated dataset in the act of customer's hiking, plus it forms the user-location track with RSSI through the analysis and processing of the placement system server. QPSO algorithm is employed when it comes to ideal radio fingerprint match involving the RSSI of this access point (AP) within the dataset of user-location track therefore the calibration samples to ultimately achieve the transform