LiFi和WiFi之间的区别

Wi-Fi（无线保真）和Li-Fi（光保真）都是用于无线发送和接收数据的两种不同技术。在 Wi-Fi 中，我们使用路由器和射频 (RF) 波来传输数据，而在 Li-Fi 中，我们使用 LED 灯泡和光信号来传输和接收数据。

LiFi和WiFi的基本区别：

Comparison	Li-Fi	Wi-Fi
Full form	stand for light fidelity	stands for wireless fidelity
Invented/Coined	Coined by Prof. Harald Haas in 2011	By NCR corporation on 1991
Operation	it transmits data using light by the help of LED bulbs	it transmits data using radio waves using wifi router
Technology	Present IrDA compliant devices	WLAN 802.11/b/g/n/ac/d standard compliant devices
Data Transfer Speed	About 1 Gbps	Ranges from 150Mbps to maximum of 2Gbps
Privacy	light is blocked by the walls hence provide more secure data transfer	walls cannot block radio waves so we need to employ more techniques to achieve secure data transfer
Frequency of operation	10, 000 times frequency spectrum of the radio	2.4Ghz, 4.9Ghz and 5Ghz
Coverage Distance	about 10 meters	about 32 meters(vary based on transmit power and antenna type)
Data density	work with high dense environment	work in less dense environment due to interference related issues
Bare minimum Components used	LED bulb, LED driver and photo detector	Routers, Modems and access points
Applications	Used in airlines, undersea exploration etc	Used for internet browsing with the help of wifi hotspot