This presentation introduces WiMax, a wireless technology that provides broadband internet access over long distances at low cost. WiMax uses towers and receivers to connect users within a few miles to the internet via microwave signals. It has advantages over wired connections like quick installation and flexibility in pricing and bandwidth. While WiMax can support high speeds over large areas, it cannot do both simultaneously. In the future, WiMax is expected to provide affordable, widespread broadband access and become the dominant wireless networking technology within 5 years. It is compared to other wireless technologies like WiFi, 3G, and broadband, with each having their own advantages and disadvantages in terms of speed, range, and cost.

1. Apresentationon....

2. Contents
 Introduction
 New Technology WiMax
 Working
 Advantages & Disadvantages
 Future
 Relationship with other Wireless Technologies
 Comparision of WiMax & WIFI
 Conclusion

3. Think about how you access
the Internet today………

4. 3 options !!
Broadband access
Wi-Fi access
Dial-up access

5. WiMax
 WiMax or Worldwide Interoperability of
Microwave Access, is a wireless Internet service
designed to cover wide geographical areas serving
large number of users at low cost.
 WiMax is the synonym given to the IEEE 802.16
standard defining wide area wireless data
networking .

6. Working
 There are two parts:
 WiMax Tower
 WiMax Receiver
WiMax stations connect directly to the internet
with a wired connection.

7. How Does it work ?
• WiMax uses microwave radio technology to connect computers to the
internet in place of wired connections such as DSL or cable modems.
• It works very much like cell phone technology in that reasonable
proximity to a base station is required to establish a data link to the
Internet.
• Users within 3 to 5 miles of the base station will be able to establish a
link using NLOS technology with data rates as high as 75 Mbps.
• Users up to 30 miles away from the base staion with an antenna mounted
for LOS to the base station will be able to connect at data rates
approaching 280 Mbps.

8. ISP PoPWire line or Wireless
backhaul
WiMax Base Station
Homes with outdoor/indoor
WiMax receiver

9. ADVANTAGES
 Bandwidth Flexibility
 Pricing + Contract Flexibility
 Quick Installation
 Interpenetration
DISADVANTAGES
 WiMax can operate at higher bitrates or over longer
distances but not both.
 Omni directional antennas are used.

10. FUTURE
Anywhere, Anytime, Connectivity
Cost Effective
High speed of Broadband service

11. Relationship with other Wireless Technologies
3G Mobile-Fi Wi-Fi WiMax
Max. Speed 2 Mbps 16 Mbps 54 Mbps 100 Mbps
Coverage Several Miles Several Miles 300 feet 50 miles
Airwave Licensed Licensed Unlicensed Either
Advantages Range,
Mobility
Speed,
Mobility
Speed, Price Speed, Range
Disadvantages Slow,
Expensive
High Price Short Range Interference
issues

12. Comparison between WiMax & WiFi
WiMax
 WiMax is a long
range system.
 WiMax provides
services analogous to
cell phone.
 It uses a mechanism
based on setting up
connections between
the base station &
user device.
WiFi
 WiFi is shorter range
system.
 WiFi is more
analogous to a
cordless phone.
 WiFi has introduced
a quality of service
mechanism similar
to fixed Ethernet,
where packet can
receive different
priorities based on
their tags.

13. Conclusion
Within five years, we expect WiMax to be the
dominant technology for wireless networking. By that
time it will be fully mobile, as well as providing low-
cost, fixed broadband access that will open up regions
where internet access has no far not been practical.

14. Sources
 Wikipedia
 Slideshare
 MTNL training manual

15. MADE BY :
SUNAYANA PATI
14ECU095
ECE-V-B