The document presents information on WiMAX (Worldwide Interoperability for Microwave Access). It defines WiMAX as a wireless technology that provides broadband connections over long distances, in accordance with the IEEE 802.16 standard. WiMAX uses towers to broadcast a signal that can cover up to 50 km, allowing users to access the Internet wirelessly. It offers benefits over wired broadband like lower costs and broader coverage for rural areas. While it has advantages over 3G like higher throughput, it also has disadvantages such as higher costs and signal degradation in bad weather.

1. Presented
M. HariSowjanya
14A81A0592
CSE-B
Seminar
On
WIMAX

2. What is WIMAX?
 WIMAX stands for Worldwide Interoperability for Microwave
Access
 WiMAX refers to broadband wireless networks that are based on
the IEEE 802.16 standard, which ensures compatibility and
interoperability between broadband wireless access equipment
 WiMAX, which will have a range of up to 31 miles, is primarily
aimed at making broadband network access widely available
without the expense of stringing wires (as in cable-access
broadband) or the distance limitations of Digital Subscriber Line.

3. NEW TECHNOLOGY
 Broadband access is too expensive and WiFi coverage is
very sparse.
 The new technology promises
◦ High speed of broadband service
◦ Wireless rather than wired access
◦ Broad Coverage

4. 1) A WiMAX tower, similar in concept to a cell-phone tower
- A single WiMAX tower can provide coverage to a very
large area as big as 3,000 square miles (~8,000 square
km).
2) A WiMAX receiver - The receiver and antenna could be a
small box or Personal Computer Memory card, or they
could be built into a laptop the way WiFi access is today
A WIMAX system consists of

5. WIMAX TOWER WIMAX
RECEIVER

7. WIMAX CHIPS
WiMAX Mini-PCI Reference Design Intel’s first WIMAX chip

8. FEATURES OF WIMAX
 Scalability
 Quality of Service
 Range
 Coverage

9. RANGE
 Optimized for up to 50 Km
 Designed to handle many users spread out over
kilometres
 Designed to tolerate greater multi-path delay spread
(signal reflections) up to 10.0μ seconds.

10. BENEFITS OF WIMAX
 Speed
◦ Faster than broadband service
 Wireless
◦ Not having to lay cables reduces cost
◦ Easier to extend to suburban and rural areas
 Broad Coverage
◦ Much wider coverage than WiFi hotspots

11. Advantages of WiMax over
3G
 Using an assortment of proprietary and standards-based
technologies, such as OFDM and W-CDMA ,WIMAX
has a clear advantage over 3G.
 The advantages include
◦ Higher Throughput
◦ Low Cost
◦ Lower Latency

12. Disadvantages of WIMAX
 Spectral limitation
 High cost-both for installation and
operation
 Weather conditions like rain can have
a big impact on the service
 Line-of-sight is needed for longer
distances
 It has a big power consumption

13. USES OF WIMAX

14. FUTURE
 WiMax will be deployed in three stages
◦ In the first phase WiMaX technology (based
on IEEE 802.16-2004) provides fixed
wireless connections
◦ In the second phase WiMaX will be available
as a cheap and self-installing Subscriber
Terminal (ST), linked to PC and to antenna
◦ The third phase enables portability, thus
WiMAX (based on IEEE 802.16e) will be
integrated into commercial laptops

15. Conclusion:
 Will WIMAX replace 3G?
◦ Along with the forthcoming standardization,
WiMAX has the potential to substitute 3G and
become a promising 4G
◦ WiMAX has its distinct identity as either a stand-
alone solution for incumbent and competitive
fixed network operators or as complementary
radio access solution for established 2G and 3G
cellular network operators.