Study on Improving Quality of Fingerprint Database Based on Multiple BSSID Information

In indoor positioning, Wi-Fi signals can become unstable due to changes in the surrounding environment. Most studies improve the quality of data by applying data cleaning processes, such as filtering out weak signals and imputing missing values, when constructing Wi-Fi fingerprint databases. This paper analyzes the distribution of single BSSID APs and multiple BSSID APs using raw data collected from indoor spaces and suggests a strategy for utilizing multiple BSSID AP information to enhance the data cleaning process.