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IEEE/ICACT20210203 Slide.08        [Big Slide]	Oral Presentation
	Related work of WiFi Received Signal Strength Indicator(WiFi RSSI). RSSI stands for Received Signal Strength Indicator. The position of Wi-Fi RSSI in indoor localization systems is similar to that of the Global Positioning System (GPS) in outdoor world mapping since the GPS has insufficient inaccuracy when working indoors, especially because there are many floor plans. Therefore, Wi-Fi RSSI is widely used for indoor localization instead. The application can be used in several areas, such as office buildings, factories, and warehouses. Although WIFI localization has an error of 1-2 meters because of the noise from other access points and attenuation from obstacles such as walls, it achieves better results than GPS for indoor localization. WiFi RSSI behaves high value when the position near to access point, whereas it shows low value when the position far away from the access point.

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