Wimax

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as most of m frnd didnt attended my seminar presentation....

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Wimax

  1. 1. Seminar Presentation on WiMAX Connecting The Next 5 Billion People PREPARED BY: Yogesh Maurya III Year(IT) Roll No-0806313057
  2. 2. Agenda <ul><li>Introduction </li></ul><ul><li>Architecture of WiMAX </li></ul><ul><li>Spectrum Allocation </li></ul><ul><li>LOS Vs NLOS Technology </li></ul><ul><li>Adaptive Modulation </li></ul><ul><li>Connecting to WiMax </li></ul><ul><li>WiMAX Security Challenge </li></ul><ul><li>Wimax Vs WiFi </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Introduction <ul><li>Next generation of Wi-Fi </li></ul><ul><li>Wireless wide area n/w technology for broadband internet access. </li></ul><ul><li>WiMAX is a fast-emerging wide-area wireless </li></ul><ul><li>broadband technology </li></ul><ul><li>WiMAX (Worldwide Interoperability for Microwave </li></ul><ul><li>Access) forum is a non-profit corporation formed to </li></ul><ul><li>help promote and certify the compatibility and </li></ul><ul><li>interoperability. </li></ul>
  4. 4. IEEE Standards
  5. 5. WiMax Architecture
  6. 6. Contd…… <ul><li>Mobile Stations (MS) used by the end user to access the network. </li></ul><ul><li>ASN comprises one or more base stations and one or more ASN gateways </li></ul><ul><li>CSN which provides IP connectivity and all the IP core network functions. </li></ul><ul><li>The BS is responsible for providing the air interface to the MS. </li></ul>
  7. 7. Demand for Wireless Broadband <ul><li>Telemedicine </li></ul><ul><li>Teleworking </li></ul><ul><li>E-Government </li></ul><ul><li>Agriculture </li></ul><ul><li>Distance learning </li></ul><ul><li>Public safety </li></ul><ul><li>National security </li></ul><ul><li>E-commerce </li></ul><ul><li>Entertainment </li></ul><ul><li>Applications for </li></ul><ul><li>persons with disabilities </li></ul><ul><li>Utility applications </li></ul><ul><li>Small business </li></ul><ul><li>assistance </li></ul>
  8. 8. Stay Connected
  9. 9. Spectrum
  10. 10. Spectrum Allocation
  11. 11. <ul><li>WiMAX operate in two frequency bands. </li></ul><ul><li>Operates in two separate frequency bands </li></ul><ul><li>2-11 GHz and 10-66 GHz </li></ul><ul><li>Licensed (2-11 Ghz) spectrum. </li></ul><ul><li>Unlicensed (5-8 Ghz) spectrum. </li></ul>
  12. 12. LOS Fresnel Zone
  13. 13. NLOS Propagation
  14. 14. NLOS
  15. 15. <ul><li>Promises to deliver high data rates cheaply to remote regions </li></ul><ul><li>At the higher frequencies, line of sight (LOS) is required – point-to-point links only </li></ul><ul><li>In the lower region, the signals propagate without the requirement for line of sight (NLOS) to customers </li></ul>
  16. 16. Adaptive Modulation and Coding
  17. 17. Digital Modulation
  18. 18. BPSK & QPSK
  19. 19. FDM with Nine Sub-carriers OFDM with Nine Sub-carriers OFDM
  20. 20. OFDM OFDM with 256 Sub-carriers
  21. 21. Connecting to WiMax Gateways Dongles Mobile Phones
  22. 22. WiMAX Security Challenge <ul><li>Client impersonation </li></ul><ul><li>Server impersonation </li></ul><ul><li>Message tempering </li></ul><ul><li>Session tampering </li></ul><ul><li>DoS attacks </li></ul>
  23. 23. WiMAX Vs WiFi <ul><li>WiMAX is more secure </li></ul><ul><li>WiMAX is faster </li></ul><ul><li>WiMAX has longer range </li></ul><ul><li>WiFi uses 802.11 Standard </li></ul>
  24. 24. Markets Targeted By WiMAX
  25. 25. Conclusion <ul><li>WiMAX could bring broadband access into the homes </li></ul><ul><li>and businesses of millions of people in rural and </li></ul><ul><li>developing markets. </li></ul><ul><li>Portable Internet a reality </li></ul><ul><li>End-users to enjoy an “Always Best Connected” </li></ul>Thank You!!!

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