The document presents on Wi-Fi technology. It discusses that Wi-Fi allows devices to connect to the internet wirelessly using radio signals following IEEE 802.11 standards. It was developed by the Wi-Fi Alliance in 1999 to promote interoperability. Some key benefits of Wi-Fi include flexible working, reduced cables, and lower setup costs compared to wired networks. The presentation provides tips for securing Wi-Fi networks such as using a passphrase and separating guest networks. It also compares Wi-Fi to other wireless technologies like Li-Fi and Wi-Fi Direct.

1. PRESENTATION ON:
Assigned by: Dr. Saurbhi Chaturvedi Ma’am
Presented by: Diljit Singh Khalsa
Faizan Sheikh
Avni Patel
On: 04/03/2016

2. STANDS FOR….
Wireless Fidelity

3. WHAT IS ?
•Wi-Fi is a wireless networking technology that allows
computer and other devices to communicate over a
wireless signal.
•Wi-Fi is a local area wireless technology (WLAN).
•It follows IEEE 802.11 a/b/g/n Standards.

4. ORIGIN OF
•A Product of
•Formed in 1999.
•Constitutes 170+ members.
•It certify interoperability of WLAN products.
•Promotes Wi-Fi as the global standard.

5. FUNCTIONS

6. THE TECHNOLOGY
•Wi-Fi works on RADIO SIGNALS
Electromagnetic Spectrum

7. conti…..
ISM Band

9. SETUP
Wi-Fi

10. BENEFITS OF
•Flexible Working
•Reduced Cables
•Reduce setup cost
•Avoid deterioration with time
•Eliminate Re-configuring computer

11. SECURITY
Tips for Secure Wi-Fi Network:
•Change your network’s SSID (Service Set IDentifier) name
•Use WPA2(Wi-Fi Protected Access) instead of WEP(Wired Equivalent
Privacy).
•Use a secured WPA password.
•Check for rogue Wi-Fi access point.
•Provide a separate network for guests.
•Hide your Network name (SSID).
•Keep softwares up to date.

12. Wi-Fi vs. Li-Fi
Wi-Fi Li-Fi
Frequency Radio waves (2.4GHz to
5GHz)
Visible Light (10,000 times of
RF)
Emitting Device Wi-Fi Router LED Bulbs
Bandwidth Low High
Interference High Low
Range Up to 10 meters Approx. 32 meters
Security Low High

13. Wi-Fi vs. Wi-Fi Direct

17. ThankYou…