It's a Presentation from THIAGARAJAR  POLYTECHNIC  COLLEGE (Autonomous Institution) Salem - 5 THIAGARAJAR  POLYTECHNIC  CO...
Wi-Fi
Presented & performed by   <ul><li>Ranjith. B </li></ul><ul><li>Arunachalam. PL </li></ul><ul><li>COMPUTER ENGINEERING </l...
<ul><li>Wi-Fi </li></ul><ul><ul><li>Introduction </li></ul></ul><ul><ul><li>Working principle </li></ul></ul><ul><ul><li>P...
Wi reless  Fi delity (Wi-Fi) Welcome to the World of Wireless <ul><li>A radio technology  that networks the devices. </li>...
Operating modes <ul><li>InfraStructure Mode </li></ul><ul><li>AD HOC Mode </li></ul>
Building a WiFi <ul><li>A  Wi-Fi hotspot is created by installing an access   point  to  an internet connection. </li></ul...
A Way to Amplify WiFi Signals A WiFi repeater is installed to  extend  coverage.
Wireless Local Area Networking
The Beat Goes on.. <ul><li>There are many WiFi hotspots now  available in  public places like  restaurants, hotels, librar...
WiFi Topologies <ul><li>The client communicates through Access Point.  </li></ul><ul><li>It connects the PC’S by an AP. </...
Peer-to-peer topology <ul><li>Access Point  is not required. </li></ul><ul><li>Client devices within a cell can communicat...
Point-to-multipoint bridge topology <ul><li>Used to connect a LAN in one building to a LANs in other buildings even if the...
Wireless Fidelity Advantages   <ul><li>Mobile. </li></ul><ul><li>Widely available in public venues. </li></ul><ul><li>Rela...
Wi-Fi Security <ul><li>  WEP stands for Wired Equivalency Privacy  </li></ul><ul><li>As its name implies, this standard wa...
 
A SPECIAL SECURITY SOFTWARE
Wi-Fi   Cameras used in BANKS
<ul><li>In few more years all electronic devices are  going to  have a built in Wi-Fi.. </li></ul><ul><li>So once again we...
Conclusion
“ Things that think…   don’t make sense unless they link.” Its time for small Demo…
This Paper has been submitted under the guidance of <ul><li>Over headed by </li></ul><ul><ul><li>Mr.M. Saravanan (M.E) –  ...
Bibliography www.wikipedia.com www.howstuffworks.com www.palowireless.com www.technologyreview.com http://www.wirelessethe...
ACKNOWLEDGEMENT  THANK YOU
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Wi-Fi

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Wi-Fi

  1. 1. It's a Presentation from THIAGARAJAR POLYTECHNIC COLLEGE (Autonomous Institution) Salem - 5 THIAGARAJAR POLYTECHNIC COLLEGE (Autonomous Institution) Salem - 5 THIAGARAJAR POLYTECHNIC COLLEGE (Autonomous Institution)
  2. 2. Wi-Fi
  3. 3. Presented & performed by <ul><li>Ranjith. B </li></ul><ul><li>Arunachalam. PL </li></ul><ul><li>COMPUTER ENGINEERING </li></ul>
  4. 4. <ul><li>Wi-Fi </li></ul><ul><ul><li>Introduction </li></ul></ul><ul><ul><li>Working principle </li></ul></ul><ul><ul><li>Products </li></ul></ul><ul><ul><li>Building a WiFi Network </li></ul></ul><ul><ul><li>Wi-Fi Security </li></ul></ul><ul><ul><li>Scope of WiFi </li></ul></ul><ul><li>Bibliography </li></ul><ul><li>Concluding remarks </li></ul>Agenda
  5. 5. Wi reless Fi delity (Wi-Fi) Welcome to the World of Wireless <ul><li>A radio technology that networks the devices. </li></ul><ul><li>Refers to wireless LAN products based on the IEEE 802.11b specification </li></ul><ul><li>Provides easy connections to the internet and business networks while traveling </li></ul><ul><li>The main attractive feature of this technology is that it can provide wireless broadband connection within a specific geographic boundary. </li></ul>
  6. 6. Operating modes <ul><li>InfraStructure Mode </li></ul><ul><li>AD HOC Mode </li></ul>
  7. 7. Building a WiFi <ul><li>A Wi-Fi hotspot is created by installing an access point to an internet connection. </li></ul><ul><li>An access point acts as a base station . </li></ul><ul><li>When Wi-Fi enabled device encounters a hotspot the device can then connect to that network wirelessly . </li></ul><ul><li>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 . </li></ul><ul><li>Many access points can be connected to each other via Ethernet cables to create a single large network. </li></ul>
  8. 8. A Way to Amplify WiFi Signals A WiFi repeater is installed to extend coverage.
  9. 9. Wireless Local Area Networking
  10. 10. The Beat Goes on.. <ul><li>There are many WiFi hotspots now available in public places like restaurants, hotels, libraries and airports. </li></ul><ul><li>For example, Spenzer PLAZA </li></ul><ul><li>The number of hotspots in the world is growing daily. </li></ul>Locating Hotspots
  11. 11. WiFi Topologies <ul><li>The client communicates through Access Point. </li></ul><ul><li>It connects the PC’S by an AP. </li></ul><ul><li>It consists of 2 or Base Stations. </li></ul><ul><li>It includes 10-15% overlap to allow roaming. </li></ul>AP-based topology
  12. 12. Peer-to-peer topology <ul><li>Access Point is not required. </li></ul><ul><li>Client devices within a cell can communicate directly with each other. </li></ul><ul><li>It is useful for setting up of a wireless network quickly and easily. </li></ul>
  13. 13. Point-to-multipoint bridge topology <ul><li>Used to connect a LAN in one building to a LANs in other buildings even if the buildings are miles apart. </li></ul><ul><li>Range varies based on the type of wireless bridge and antenna used as well as the environmental conditions. </li></ul>
  14. 14. Wireless Fidelity Advantages <ul><li>Mobile. </li></ul><ul><li>Widely available in public venues. </li></ul><ul><li>Relatively inexpensive. </li></ul><ul><li>Easy to set up a network. </li></ul><ul><li>User-friendly software. </li></ul><ul><li>Security features. </li></ul><ul><li>Global set of standards. </li></ul>
  15. 15. Wi-Fi Security <ul><li> WEP stands for Wired Equivalency Privacy </li></ul><ul><li>As its name implies, this standard was intended to make wireless networks as secure as wired networks. </li></ul><ul><li>The common key lengths are currently 128- and 256-bit. </li></ul><ul><li>WPA Wi-Fi Protected Access is an early version of the 802.11i security standard that was developed by the Wi-Fi Alliance to replace WEP. </li></ul>
  16. 17. A SPECIAL SECURITY SOFTWARE
  17. 18. Wi-Fi Cameras used in BANKS
  18. 19. <ul><li>In few more years all electronic devices are going to have a built in Wi-Fi.. </li></ul><ul><li>So once again we welcome to World of wireless. </li></ul><ul><li>Many colleges and businesses have suitable building layouts that can be wireless to build a unwired network. </li></ul><ul><li>Wi-Fi is a very cost effective alternative in these environments. </li></ul>SCOPE OF Wi-Fi
  19. 20. Conclusion
  20. 21. “ Things that think… don’t make sense unless they link.” Its time for small Demo…
  21. 22. This Paper has been submitted under the guidance of <ul><li>Over headed by </li></ul><ul><ul><li>Mr.M. Saravanan (M.E) – Senior Lecturer (Computer Engg). </li></ul></ul><ul><ul><li>K. Megala B. E – Lecturer (Computer Engg). </li></ul></ul>MR.D.ARUL SELVAN M.E., Head Of the Department / Computer Engineering <ul><ul><li>Mr.M. Ramesh Kumar, MCA.,Mphil – HOD i/c (Computer Engg). </li></ul></ul>
  22. 23. Bibliography www.wikipedia.com www.howstuffworks.com www.palowireless.com www.technologyreview.com http://www.wirelessethernet.org/index.html http://grouper.ieee.org/groups/802/index.html http://standards.ieee.org/getieee802/ http://www.cisco.com http://grouper.ieee.org/groups/802/11/index.html http://grouper.ieee.org/groups/802/15/index.html www.sss-mag.com/ss01.html#other
  23. 24. ACKNOWLEDGEMENT THANK YOU

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