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IEEE/ICACT20210173 Slide.05        [Big Slide]	Oral Presentation
	Next, let's talk about the Proximity method. This method is used to estimate the APs closest to the terminal by utilizing information related to the connection status and received signal strength of the APs. Because the estimation algorithm is simple, and the reference point information denotes the estimated position, this method's accuracy is low. Because the terminal only needs to hold the AP location information and BSSID in advance, the system can be easily constructed. The error varies depending on the estimation region, but they are generally in the range of 50 to 100[m].

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