Abstract
Wireless network technology has become essential while also increasing in demand due to its effectiveness and ability to facilitate the use of devices and users. IEEE 802.11 or Wi-Fi is the best approach in ensuring users can access the internet network. Therefore, construction of Light Fidelity (Li-Fi) technology infrastructure has been developed to ensure that the problem can be solved. Li-Fi is considered one of the future 5G mobile networks and beyond. One factor that must be considered for this technology is that the speed of data transmissions may be unstable as it is influenced by other lights such as light, sun, and opaque objects. In this paper, an analysis of data speed measurement has been studied by considering the effect of interference and user position in this technology. Three colors of LED which is white, yellow, and red as transmitter is controlled by an Arduino Uno board in this paper. The advantage is that every angle change is done automatically due to the presence of the Arduino Uno board. The performance of data transmission rate was evaluated for white, yellow, and red LED as a transmitter. White LED produces faster data transmission than other LED, while yellow LED shows more stable transmission compared to other LED at 75-degree and 90-degree angles.