wi-fi ppt

6,323 views

Published on

Published in: Education, Technology, Business
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
6,323
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
349
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

wi-fi ppt

  1. 1. Wi-Fi Technology PRESENTED By V.VIJAYKUMAR N.NIKHIL REDDDY P.PRAVEEN REDDY GUIDENCE Jagapathi goud
  2. 2. CONTENTS  Introduction  Wi-Fi Architecture  Simulation  IEEE Wireless standard  Components Required for Wi-Fi  Wi-Fi Configuration  How a Wi-Fi Network works  Applications of Wi-Fi  Advantages/ Disadvantages of Wi-Fi  Limitations of Wi-Fi  Conclusion
  3. 3. AIM OF THE WI-FI
  4. 4. INTRODUCTION  Wireless Technology is an alternative to Wired Technology , which is commonly used, for connecting devices in wireless mode.  Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs).  Wi-Fi Network connect computers to each other, to the internet and to the wired network.
  5. 5. ARCHITECTURE
  6. 6. Block Diagram Of SMC
  7. 7. SIMULATION:-
  8. 8. software Active-HDL (ALDEC):  Active-HDL is an integrated environment EDA tool designed for development of VHDL, Verilog, EDIF, state, block diagram, Simulation (wave form) models and design of Synthesizable IP-Cores.
  9. 9. IEEE Wireless Standards Wireless Standard 802.11b 802.11g 802.11a Frequency Range 2.4 – 2.4835 GHz 2.4 – 2.4835 GHz 5.725 - 5.850 GHz Max Speed 11 MBPS 54 MBPS 54 MBPS Max Encryption 128 bit WEP 128 bit WEP 152 bit WEP 256 bit AES Discrete Channels 3 3 8 Natively Compatible 802.11b, 802.11g 802.11b, 802.11g 802.11a Potential user Entry level and home networks Larger networks, small business Large business concerned with security
  10. 10. Components required for Wi-Fi  A PC, laptop , running Windows 98 or above.  A wireless PCMCIA card, or a wireless adapter. Now a days all the latest LAPTOPS are coming with in built CENTRINO  A Network Interface Card (optional) - Only if a LAN connection is required  An Access Point - essentially a compact radio transmitter with an antenna that connects to a wired connection, such as an Ethernet, DSL, or Cable Network.  A valid internet connection.
  11. 11. Wi-Fi CONFIGARATION
  12. 12. How a Wi-Fi Network Works  Basic concept is same as Walkie talkies.  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.
  13. 13. Wi-Fi APPLICATION  Home  Small Businesses or SOHO  Large Corporations & Campuses  Health Care  Wireless ISP (WISP)  Travellers
  14. 14. ADVANTAGES  Mobility  Ease of Installation  Flexibility  Cost  Reliability  Security  Speed
  15. 15. DISADVANTAGES  Many 2.4 GHz 802.11b and 802.11g Access points default to the same channel on initial startup, contributing to congestion on certain channels.  Wi-Fi networks have limited range.  A typical Wi-Fi home router using 802.11b or 802.11g with a stock antenna might have a range of 45 m (150 ft) indoors and 90 m (300 ft) outdoors.
  16. 16. LIMITATION  Interference  Degradation in performance  High power consumption  Limited range
  17. 17. CONCLUSION  For now Wi-Fi provides broad band internet access to specially outfitted PCs and Laptops. But in future may be hotspots be wireless.  By Wi-Fi our time and money are saved.  The technologies have help Wi-Fi “Hotspots are becoming more popular throught urban environment.”
  18. 18. REFERENCE  www.Wi-Fitechnology.com  www.webopedia.com  www.wavewireless.com

×