INTRODUCTION   Think about how you access the internet today.   There are basically three different options:      BROAD...
What if there were a new technology that solved all of these problems?This new Technology would provide:-   High speed of...
Before WIMAX <---wi-fi                                  ^                                  |                              ...
WHAT IS WIMAX?   Worldwide Interoperability for Microwave Access.   WIMAX is a wireless digital communications system al...
Why is it Interesting?   Promise of potential low cost and flexibility in building    broadband networks.   Scalability,...
WIMAX SPEED
How WIMAX Works?   A WIMAX tower station can connect directly to the internet    using a high-bandwidth, wired connection...
WiMAX Architecture  MIB – Management Information Base
WiMax can provide 2 forms of wireless service:   Non-LOS, where a small antenna on your computer    connects to the tower...
TYPES OF WIMAXFIXED WIMAX:  Wireless access application in which the location of the end-  user termination and the networ...
MOBILE WIMAX:  Mobile WIMAX implementations can be used to deliver both  fixed & mobile services It offers superior buildi...
IEEE Standards
Characteristics of WiMaxFrequency Ranges   10 - 66 GHz       Short wavelength       Line-of-sight (LOS) required      ...
   Cost Effective     There   are areas of the world-especially in rural areas-      where deploying wired broadband inf...
Wi-Fi   Stands for Wireless Fidelity.   Brand licensed by the Wi-Fi Alliance.   Wi-Fi is a local area network technolog...
Difference Between WiMAX and Wi-Fi  Range:                802.11                                   802.16   Optimized fo...
Bit Rate: Relative Performance                  Channel            Maximum      Maximum                 Bandwidth         ...
Coverage                 802.11                               802.16   Optimized for indoor performance    Optimized for...
Will WiMAX displace WiFi?   WiMAX will not replace WiFi    completely, but work    TOGETHER   Intel is currently integra...
Wi-fi and WiMax Together                           22
ADVANTAGES OF WIMAX   Wimax Coverage   Wimax High Speed   Multi-functionality within Wimax Technology   Potential and ...
DISADVANTAGES   Lack of Quality   WiMAX range   WiMAX Bandwidth   WiMAX rich features   Bad Weather   Wireless equip...
FUTURE Anywhere,      Anytime, Connectivity   WIMAX  offers the kind of service where you can get a   connection, wherev...
CONCLUSION   WiMAX could bring broadband access into the homes    and businesses of millions of people in rural and    de...
Wi max by pankaj jangid
Wi max by pankaj jangid
Wi max by pankaj jangid
Wi max by pankaj jangid
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Wi max by pankaj jangid

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Wi max by pankaj jangid

  1. 1. INTRODUCTION Think about how you access the internet today. There are basically three different options:  BROADBAND ACCESS  WIFI ACCESS  DIAL-UP ACCESS The main problems with broadband access are that it is pretty expensive & it doesn’t reach all areas. The main problem with WIFI is that hot spots are very small, so coverage is sparse.
  2. 2. What if there were a new technology that solved all of these problems?This new Technology would provide:- High speed of broadband service Wireless rather than wired access That is less expensive than cable Much easier to extend to rural areas Broad coverage like cell phone networks.
  3. 3. Before WIMAX <---wi-fi ^ | | Infrared-Bluetooth ^ | |Cables -Optical Fiber   
  4. 4. WHAT IS WIMAX? Worldwide Interoperability for Microwave Access. WIMAX is a wireless digital communications system also known as IEEE 802.16. WiMAX was seen as more of a Metropolitan Area Network (MAN) technology providing a much larger coverage. WIMAX can provide broadband wireless access up to 30 miles(50 km) for fixed stations and 3-10 miles(5-15 km) for mobile stations. Next generation of wi-fi. Wi- max is the fast emerging wide area wireless broad band technology.
  5. 5. Why is it Interesting? Promise of potential low cost and flexibility in building broadband networks. Scalability, as extra channels and base stations can be added incrementally as bandwidth demand grows. Support for both voice and video as well as Internet data. Broad Coverage High speed up to 70 Mb/sec.
  6. 6. WIMAX SPEED
  7. 7. How WIMAX Works? A WIMAX tower station can connect directly to the internet using a high-bandwidth, wired connection. It can also connect to another WIMAX tower using a line-of- sight, microwave link. This connection to a second tower, along with the ability of a single tower to cover up to 3,000 square miles, is what allows WIMAX to provide coverage to remote rural areas.
  8. 8. WiMAX Architecture MIB – Management Information Base
  9. 9. WiMax can provide 2 forms of wireless service: Non-LOS, where a small antenna on your computer connects to the tower in the low frequency range of 2-11 GHz. LOS, where a fixed antenna points straight at the WiMax tower from a rooftop or pole. The LOS connection is stronger and more stable, so it is able to send a lot of data with fewer errors. Uses higher frequencies, with ranges reaching a possible 66 GHz. Through stronger LOS antennas, WiMax transmitting stations would send data to WiMax enabled computers or routers set up within 30 mile radius.
  10. 10. TYPES OF WIMAXFIXED WIMAX: Wireless access application in which the location of the end- user termination and the network access point to be connected to the end-user are fixed.
  11. 11. MOBILE WIMAX: Mobile WIMAX implementations can be used to deliver both fixed & mobile services It offers superior building penetration and improved security.
  12. 12. IEEE Standards
  13. 13. Characteristics of WiMaxFrequency Ranges 10 - 66 GHz  Short wavelength  Line-of-sight (LOS) required  Negligible multipath 2 – 11 GHz  Longer wavelength  Improved range and in-building penetration  LOS not required  Multipath effects may be significant
  14. 14.  Cost Effective  There are areas of the world-especially in rural areas- where deploying wired broadband infrastructure is not cost effective.  In this case WIMAX is very cost effective. High speed of Broadband service  Another benefit of WIMAX is the ability to get a higher connection speeds farther away from the transmitter.
  15. 15. Wi-Fi Stands for Wireless Fidelity. Brand licensed by the Wi-Fi Alliance. Wi-Fi is a local area network technology that was originally thought to replace the thousands of miles of LAN cables. Wireless Local Area Networks (WLAN) Based on IEEE 802.11
  16. 16. Difference Between WiMAX and Wi-Fi  Range: 802.11 802.16 Optimized for ~100 meters  Optimized for up to 50 Km No “near-far” compensation.  Designed to handle many users spread out over kilometers Designed to handle indoor multi- path(delay spread of 0.8μ  Designed to tolerate greater seconds). multi-path delay spread (signal reflections) up to 10.0μ seconds Optimization centers around PHY and MAC layer for 100m range.  PHY and MAC designed with multi- mile range in mind Range can be extended by cranking up the power – but MAC  StandardMAC;Sectoring/MIMO/AMC may be non-standard. for Rate/Range dynamic tradeoff
  17. 17. Bit Rate: Relative Performance Channel Maximum Maximum Bandwidth Data Rate bps/Hz 802.11a 20 MHz 54 Mbps ~2.7 bps/Hz 10, 20 MHz; 802.16a 1.75, 3.5, 7, 14 MHz; 63 Mbps* ~5.0 bps/Hz 3, 6 MHz802.16a is designed for metropolitan performance
  18. 18. Coverage 802.11 802.16 Optimized for indoor performance  Optimized for outdoor NLOS performance  Standard supports mesh network topology No mesh topology support within ratified standards  Standard supports advanced antenna techniques 802.16 is designed for market coverage
  19. 19. Will WiMAX displace WiFi? WiMAX will not replace WiFi completely, but work TOGETHER Intel is currently integrating WiMAX and WiFi into a single Centrino chip. WiFi’s primary role will always be autonomous hotspot service areas (indoor and outdoor 0 ft. < cell radii <500 ft.). WiMax will ultimately replace WiFi in large-scale in commercial and public roles.
  20. 20. Wi-fi and WiMax Together 22
  21. 21. ADVANTAGES OF WIMAX Wimax Coverage Wimax High Speed Multi-functionality within Wimax Technology Potential and development Stay in touch with end user Wimax Infrastructure Wimax, cheap network Wimax Rich Features Wimax and Wifi Smart antenna and Mesh Topology
  22. 22. DISADVANTAGES Lack of Quality WiMAX range WiMAX Bandwidth WiMAX rich features Bad Weather Wireless equipments Power consuming Data Rate
  23. 23. FUTURE Anywhere, Anytime, Connectivity  WIMAX offers the kind of service where you can get a connection, wherever u may be.  When WIMAX is fully developed, u will no longer be limited to 300 feet within the WIFI hotspot, & u won’t have to drive around looking for a connection….
  24. 24. CONCLUSION WiMAX could bring broadband access into the homes and businesses of millions of people in rural and developing markets. Portable Internet a reality End-users to enjoy an “Always Best Connected”

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