Presenation by RAHUL BARICK(RB) WIFI-TECHNOLOGY AGENDA  INTRODUCTION  Wifi-Technologies  What are the Elements of wi-fi network  Hotspots  How a Wi-Fi Network Works  Advantages  Disadvantages  How wi-fi improved my life  Conclusion U can Learn and know Various things from My Slide

2. Presented by: RAHUL BARICK
BRANCH-INFORMATION
TECHNOLOGY

3.  INTRODUCTION
 Wifi-Technologies
 Elements of wi-fi network
 Hotspots
 How a Wi-Fi Network Works
 Advantages
 Disadvantages
 How wi-fi improved my life
 Conclusion

4.  Wireless Technology is an alternative to wired
technology, which is commonly used for
connecting devices in wireless mode
 Wi-fi a generic term that refers to IEEE 802.11
communication standard for Wireless Local Area
Network
 Wi-fi allows an electronic device to exchange
data wirelessly over a computer
Network,including a high-speed internet
connections

5. Wi-Fi Networks use Radio Technologies to transmit
and receive data at high speed:
 IEEE 802.11b
 IEEE 802.11a
 IEEE 802.11g

6.  Access Point (AP) - The AP is a wireless LAN
transceiver or “base station” that can connect one or
many wireless devices simultaneously to the Internet.
 Wi-Fi cards - They accept the wireless signal and
relay information. They can be internal and external.
 Safeguards - Firewalls and anti-virus software protect
networks from uninvited users and keep information
secure

7.  A Hotspot is a geographical area that has a readily
accessible wireless network.
 Hotspots are equipped with Broad band Internet
connection and one or more Access points that
allow users to access the internet wirelessly
 Hotspots can be setup in any public location that
can support an Internet connection.

8.  A Wi-Fi hotspot is created by installing an access point
to an internet connection.
 An access point acts as a base station.
 When Wi-Fi enabled device encounters a hotspot the
device can then connect to that network wirelessly.
 A single access point can support up to 30 users and
can function within a range of 100 – 150 feet indoors
and up to 300 feet outdoors.
 Many access points can be connected to each other via
Ethernet cables to create a single large network.

9.  Mobility
 Ease of Installation
 Flexibility
 Cost
 Reliability
 Security
 Roaming
 Speed

10.  Speed-slower than cable
 Range-affected by various medium
 Travels best through open space
 Reduced by walls,glass etc..

11.  Set Router to Reboot on a Schedule.
 Turn an Old Router Into a Wi-Fi Repeater.
 Boost Router's Signal with a Bit of Hacking
to find whats the vulnerability if someone
can try to break security system.
 Control Bandwidth-Hogging Applications
 Thwart Wi-Fi Thieves with Better Security
 Get Rid of Interference from Other
Appliances
 Use the Latest Wi-Fi Technologies

12.  Wi-Fi is a simple and cost effective way to connect
to internet without the need of wires.
 It is growing in popularity because of decreasing
costs and the freedom it gives to users.
 Wi-fi is one of the fastest growing
technologies.The Demand for Connecting Devices
without the use of cables is increasing everywhere.
 Wi-fi can be found on colleges,campus,offices and
in public areas.