17 May 2018

Difference between LiFi and WiFi

Before we learn about the difference between Li-Fi and Wi-Fi first let we check it out full form of Li-Fi and Wi-Fi full form. The most important difference between Li-Fi and Wi-Fi is that Li-Fi uses light for data transmission while Wi-Fi uses electromagnetic waves at a radio frequency for data transmission. So now let us talk about the difference between Li-Fi and Wi-Fi to know more details about it. 
  • Li-Fi called light fidelity, Wi-Fi called wireless fidelity.
  • Li-Fi can be considered as a light-based Wi-Fi system.
  • The bandwidth expansion of WiFi technology is limited and exceptional for WiFi.
  • Li-Fi transmits data using light with the help of an LED type of bulbs, Wi-Fi transmits data using radio waves with the help of a Wi-Fi router.
  • Li-Fi does not have any interference issues similar to the radio frequency waves, whereas Wi-Fi will have interference issues from nearby access points.
  • Li-Fi technology uses data transfer speed about up to 1 Gbps whereas Wi-Fi considers the speed offer using WLAN-11n offers up to 150 Mbps.
  • Li-Fi work in with the high dense environment, Wi-Fi work in with dense environment due to interference issue. 
  • The range of WiFi is medium and low for LiFi.
  • In Li-Fi technology or system can be used IrDA devices while in Wi-Fi used WLAN 802.11a/b/g/n/ac/ad 
  • While using Li-Fi the speed for the data transmission is faster while using Wi-Fi data transmission is too much slower.
  • The power availability of WiFi is low and high for LiFi. 
  • The security of WiFi is medium and excellent for LiFi
  • The data density of WiFi technology is low and high for LiFi.
  • Frequency is used to be 10000 time-frequency spectrum of the radio while Wi-FI used frequency operation in different like 2.4 GHz, 4.9 GHz, and 5 GHz.
  • In Li-Fi light system is locked by the wall and hence will provide more secure data transfer, While in the Wi-Fi RF signal cannot be blocked by the walls hence need to employ techniques to achieve more secure data transfer.
  • Li-Fi uses a component like a lamp driver, photodetector, the LED bulb will make up a complete Li-Fi system or technology while Wi-Fi uses a component like laptops, desktops, PDAs, routers referred to as stations.
  • The ecological impact of WiFi is medium and low for LiFi.
  • The network topologies of LiFi and WiFi technologies is a point to point.
  • Li-Fi is ideal for high-density wireless data coverage in a confined area and for relieving radio interference issues, while Wi-Fi is great for general wireless coverage within the building. 
  • Li-Fi must be used airlines, hospitals, clinic, explorations, office for data transfer and internet browsing, Wi-Fi can be used for internet browsing with the help of wifi kiosks or Wi-Fi hotspots.

Explore more information:
  1. Difference between the LED bulb and LED fixtures

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