Maintenance of Wi-Fi Fingerprint Database by Crowdsourcing for Indoor Localization

Construction Method of Location Fingerprint Database Based on Gaussian Process Regression Modeling

“…But this method is easily affected by environment, such as the loss caused by penetrating the walls, as well as multipath transmission of signal, which lead to the failed construction of accurate positioning model. Another method is the Location Fingerprint technology [10], the LF positioning technology can deal with the problems that caused by non-line-of-sight propagation and multipath transmission, the method is that we form the location fingerprint database by combining the RSSI values with geographic coordinates, and then realie positioning function through using the fingerprint to match the algorithm. Its shortcoming is offline construction of position fingerprint database in the early stage and fingerprint database update and maintenance in the later period is going to take more manpower and time.…”