wifi technology is used foe wireless connection for communication purpose

1. Department of Computer Science & Engineering
B. Tech IV-II Seminars
Wifi Technology
9 February 2024
WIFI TECHNOLOGY 1
Name of the Student Seminar Co Ordinator's
M Manasa
1. Mr. P. Viswanatha Reddy M. Tech (Ph .D)
Roll No: 20W51A0547
2. Mrs. B. Jyothsna M. Tech (Ph .D)

2. 9 February 2024
WIFI TECHNOLOGY 2
Introduction
How does wifi works
Wifi technology
Advantages
Limitations
Applications
conclusion

3. Wifi stands for wireless fidelity.
It allows us to connect to the internet
from anywhere without wires.
Wifi works on physical and datalink layer.
9 February 2024
WIFI TECHNOLOGY 3

4. 9 February 2024
WIFI TECHNOLOGY 4

5.  A wifi hotspot is created by installing an access point to an
internet connection
 An access point acts as a base station
 When wifi enabled device encounters a hotspot the device can
connect to the network wirelessly
 A single access point can support upto 30 users and can
function within a range of 100-150 feet indoors and upto 300
feet outdoors
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WIFI TECHNOLOGY 5

6.  Wifi network use radio technologies to transmit
and receive data at high speed.
 IEEE 802.11b
 IEEE 802.11a
 IEEE 802.11g
 IEEE 802.11n
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WIFI TECHNOLOGY 6

7.  Appeared in late 1999.
 11 Mbps –within range of 30 meters.
 4-6 Mbps(actual speed).
 100-150 feet range.
 Most popular, Least expensive.
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WIFI TECHNOLOGY 7

8.  Introduced in 2001
 54 Mbps(theoretical speed)
 15-20 (actual speed)
 30-75 feet range
 More expensive
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WIFI TECHNOLOGY 8

9.  Introduced in 2003
 Combine the feature of both
standards(a,b)
 100-150 range
 54 Mbps speed
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WIFI TECHNOLOGY 9

10.  Introduced in 2009
 Up to 300 feet range
 200 Mbps speed
 2.4&5GHz radio
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WIFI TECHNOLOGY 10

11.  Wireless connectivity
 scalability
 cost-Efficiency
 convenience
 Integration with internet
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WIFI TECHNOLOGY 11

12.  Limited range
 Interference from other devices : such
as telephones , microwave ovens.
 High power consumption : making
battery life and heat a concern.
 Data security risks : a huge challenge
for Wifi networks.
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WIFI TECHNOLOGY 12

13.  Home
 Small Business
 Large corporation
 Health care
 Wireless ISP
 Travellers
 Wifi camera
9 February 2024
WIFI TECHNOLOGY 13

14.  wifi is a simple , cost-effective way to connect to the
internet , without the need to physically connecting wires.
 In 1997 IEEE drafted the 802.11 standard for wireless local
area networking.
 Security is a huge challenge for Wifi networks , many
security techniques are used to improve it.
 wifi networks have a several limitations that should be
concerned.
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WIFI TECHNOLOGY 14

15. 9 February 2024
WIFI TECHNOLOGY 15
Thank you