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IEEE/ICACT20230039 Slide.04        [Big Slide]       [YouTube]	Oral Presentation
	With the increase in use of smart phones, location-based services attract a large number of users. Accurate positioning is the key for providing location-based services. GPS has poor coverage indoors whereas Wi-Fi, BLE and RFID are used to position the users in an indoor environment. These solutions need additional devices to position the user and add infrastructure cost. Positioning systems based on LEDs emerged in recent years, which leverage visible light signal instead of RF. In VLC system, LEDs are used as transmitters and photodiode or image sensor is used as receiver

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