Its about the small basic of Wi -Fi .How the wifi acess its access point and what is wifi , component of wifi, security and its application........etc pls sahre ur experience with me n give feedback

1. A
Pres ent at i on
On
Submitted To:- Prepared By:-
Pradeep Sharma Ashish Meena
(HOD) 7th Sem
Aashu Ashish Meena

2. CONTENT
 Introduction
 Component
 Transmission Technique
 Network
 Wi-fi Security
 Application
 Conclusion
Aashu Ashish Meena

3. INTRODUCTION
 An expensive broadband network that can
keep you connected while you move about
home or office.
 The broadband wireless web is being built
around the technology called WI-FI.
 WI-FI is stand for WIRELESS FIDELITY.
Aashu Ashish Meena

4. WHY WI-FI?
 1) MOBILITY
 2) SCALABILITY
 3) INCRESED RELIABILITY
 4) REDUCED INSTALLATION TIME
 5) FINANCIAL BENEFIT
 6) LONG – TERM COST SAVINGS
Aashu Ashish Meena

5. WI-FI STANDARDS
 1) 802.11:-
This standard allows wireless connection
up to 300 feet from an access point and can easily
be added to existing wired networks with speeds
up to 11 mbps.
 2) 802.11a:-
This provides a bigger pipe for data and
supports more simultaneous users.
 It can support up to 54 mbps.
Aashu Ashish Meena

6.  3) 802.11b:
The popular 802.11b WI-FI
devices broadcast in the 2.4Ghz band used
by cordless phones.
Aashu Ashish Meena

7. COMPONENTS OF WI-FI
 There are currently two types of
components:-
 1) WI-FI radio devices.
 2) Access points or gateway that act as
base station.
A third type WI-FI equipped
peripherals are emerging and will soon be
common place,this group includes printers,
scanner ,cameras etc.
Aashu Ashish Meena

8. Some components of WI-FI
♦ PC CARD RADIO.
Aashu Ashish Meena

9. ♦ MINI-PCI MODULES AND EMBEDDED
RADIOS.
Aashu Ashish Meena

10. ♦ USB ADAPTERS
Aashu Ashish Meena

11. ♦ PCI AND ISA BUS
ADAPTERS.
Aashu Ashish Meena

12. ♦ ACCESS POINTS
AND GATEWAY.
Aashu Ashish Meena

13. WHAT TRANSMISSION
TECH.WI-FI USED?
1) NARROWBAND TECHNOLOGY
2) SPREAD SPECTRUM TECHNOLOGY
3) FREQUENCY HOPPING SPREAD
SPECTRUM (FHSS).
4) DIRECT SEQUNCE SPREAD
SPECTRUM (DSSS).
Aashu Ashish Meena

14. ABOUT NETWORK
 WHAT MAKES UP A WIRELESS NETWORK ?
Wi-Fi devices "connect" to each other by
transmitting and receiving signals on a specific
frequency of the radio band.
 Your components can connect to each other
directly or through a gateway or access point.
 When you create your Wi-Fi network it will consist
of two basic components:
1. Wi-Fi radios
2. access points or gateways.
Aashu Ashish Meena

15.  PLANNING FOR ACCESS POINTS AND
GATEWAY..
A Wi-Fi network operates more
effectively when using a central wireless base
station to coordinate communications. There
are two types: a gateway and an access point.
Most home and small office networks
should use a Wi-Fi gateway.
Aashu Ashish Meena

16. WI-FI SECURITY
♦ WI-FI CERTIFIED = CONFIDENCE
♦ WI-FI PROTECTED ACCESS
♦ ENHANCED DATA ENCRYPTION
THROUGH TKIP(TEMPORAL KEY
INTEGRITY PROTOCOL).
♦ WI-FI PROTECTED ACCESS FOR
HOME/SOHO.
Aashu Ashish Meena

17. WI-FI APPLICATION..
♦ 1) WIRELESS EDUCATION
♦ 2) WIRELESS BUSINESS CENTERS
♦ 3) SMALL OFFICES
♦ 4)HOSPITALS
♦ 5) ACCOUNTING
♦ 6) WAREHOUSE
Aashu Ashish Meena

18. CONCLUSION..
♦ For now ,WI-FI primarily provides
broadband internet access to specially
outfitted pcs and laptops .but in future may
be most of hotspots be wireless.
♦ By WI-FI our time and money both are
save..
Aashu Ashish Meena

19. Aashu Ashish Meena

20. Any Query
Aashu Ashish Meena