LiFi Vs WiFi Light Fidelity Vs Wireless Fidelity Aditya Parmar Electrical Engineer Charotar University Of Science & Technology [email protected]
LiFi Vs WiFi Light Fidelity Vs Wireless Fidelity
Aditya Parmar
Electrical Engineer
Charotar University Of Science & Technology
Working Operation
• LiFi transmits data using light with the help of LED bulbs.• WiFi transmits data using radio waves with the help of
WiFi router.
Components Of the System
• Lifi Uses Lamp driver, LED bulb and photo detector• Wifi Uses Wifi router and subscribing stations.
Causes Of Interference
• Lifi System do not have any intereference issues similar to that of radio frequency waves.
• Wifi will have intereference issues from nearby access points routers.
Technology Used
• In Lifi IrDA compliant devices are used.• In Wifi WLAN 802.11a/b/g/n/ac/ad standard compliant
devices are used.
Privacy
• In LiFi, light is blocked by the walls and hence will provide more secure data transfer
• In WiFi, RF signal can not be blocked by the walls and hence need to employ techniques to achieve secure data transfer.
Data transfer speed
• Lifi can have data transfer speed up to 1 Gbps.• Where, In Wifi WLAN-11n offers 150Mbps of data transfer
speed.
Frequency of operation
• Life Uses 10 thousand times frequency spectrum of the radio.
• Wifi has 2.4GHz, 4.9GHz and 5GHz of frequency of operation.
Coverage distance
• The coverage of about 10 meters can be covered in Lifi system.
• Whereas in wifi system about 32 meters can be covered(WLAN 802.11b/11g) and it also vary based on transmit power and antenna type.
Density Of Data
• Lifi can work in high dense environment.• Wifi works in less dense environment due to interference
related issues.
Applications
• Lifi used in airlines, undersea explorations, operation theaters in the hospitals, office and home premises for data transfer and internet browsing.
• Used for internet browsing with the help of wifi kiosks or wifi hotspots.
Thank you